Bedside ankle-brachial index testing: Time-saving tips

By Robyn Bjork, MPT, CWS, WCC, CLT-LANA

A hot flush of embarrassment creates a bead of sweat on my forehead. “I’ve got to get this measurement,” I plead to myself. One glance at the clock tells me this bedside ankle-brachial index (ABI) procedure has already taken more than 30 minutes. My stomach sinks as I realize I’ll have to abandon the test as inconclusive. (more…)

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Clinical Notes

Guidelines for managing prosthetic joint infections released

The Infectious Diseases Society of America has released guidelines for diagnosing and managing prosthetic joint infections.
Diagnosis and management of prosthetic joint infection: Clinical practice guidelines by the Infectious Diseases Society of America,” published in Clinical Infectious Diseases, notes that of the 1 million people each year who have their hips or knees replaced, as many as 20,000 will get an infection in the new joint.
The guidelines describe the best methods for diagnosing these infections, which are not easy to identify. Specifically, infection should be suspected in a patient who has any of the following: persistent wound drainage in the skin over the joint replacement, sudden onset of a painful prosthesis, or ongoing pain after the prosthesis has been implanted, especially if there had been no pain for several years or if there is a history of prior wound healing problems or infections.
Guidelines for treating infections are included and note that 4 to 6 weeks of I.V. or highly bioavailable oral antibiotic therapy is almost always necessary to treat prosthetic joint infections.

A decade of TIME

The TIME acronym (tissue, infection/inflammation, moisture balance, and edge of wound) was first developed more than 10 years ago to provide a framework for a structured approach to wound bed preparation and a basis for optimizing the management of open chronic wounds healing by secondary intention. To mark the event, the International Wound Journal has published “Extending the TIME concept: What have we learned in the past 10 years?”
The review points out four key developments:
• recognition of the importance of biofilms (and the need for a simple diagnostic)
• use of negative-pressure wound therapy
• evolution of topical antiseptic therapy as dressings and for wound lavage (notably, silver and polyhexamethylene biguanide)
• expanded insight into the role of molecular biological processes in chronic wounds (with emerging diagnostics).
The authors conclude, “The TIME principle remains relevant 10 years on, with continuing important developments that incorporate new evidence for wound care.”

Bed alarms fail to reduce patient falls

A study in Annals of Internal Medicine found that the use of bed alarms had no statistical or clinical effect on falls in an urban community hospital.
The 18-month trial included 16 nursing units and 27,672 inpatients. There was no difference in fall rates per 1,000 patient-days, the number of patients who fell, or the number of patients physically restrained on units using bed alarms, compared with control units.
Authors of “Effects of an intervention to increase bed alarm use to prevent falls in hospitalized patients: A cluster randomized trial” speculate the lack of response may be related to “alarm fatigue.”

Drug for HIV might help in Staph infections

A study in Nature reports that the drug maraviroc, used to treat HIV, might be useful for treating Staphylococcus aureus infections.
CCR5 is a receptor for Staphylococcus aureus leukotoxin ED” found that the CCR5 receptor, which dots the surface of immune T cells, macrophages, and dendritic cells, is critical to the ability of certain strains of Staph to specifically target and kill cells with CCR5, which orchestrate an immune response against the bacteria. One of the toxins the bacterium releases, called LukED, latches on to CCR5 and subsequently punches holes through the membrane of immune cells, causing them to rapidly die.
When researchers treated cells with CCR5 with maraviroc and exposed the cells to the Staph toxin, they found maraviroc blocked toxic effects.

Dog able to sniff out C. difficile

A 2-year-old beagle trained to identify the smell of Clostridium difficile was 100% successful in identifying the bacteria in stool samples, and correctly identified 25 of 30 cases of patients with C. difficile, according to a study in BMJ.
Using a dog’s superior olfactory sensitivity to identify Clostridium difficile in stools and patients: Proof of principle study” discusses how the dog was trained to detect C. difficile and concludes that although more research is needed, dogs have the potential for screening for C. difficile infection.

After-hours access to providers reduces ED use

Patients who have access to their primary healthcare providers after hours use emergency departments (EDs) less frequently, according to a study in Health Affairs.
After-hours access to primary care practices linked with lower emergency department use and less unmet medical need” found that 30.4% of patients with after-hours access to their primary care providers reported ED use, compared with 37.7% of those without this access. In addition, those with after-hours access had lower rates of unmet needs (6.1% compared to 12.7%).
The findings come from the 2010 Health Tracking Household Survey of the Center for Studying Health System Change. The total sample included 9,577 respondents.

Neuropathic pain in patients with DPN might contribute to risk of falling

The presence of neuropathic pain in patients with diabetic peripheral neuropathy (DPN) contributes to gait variability, which could in turn contribute to the risk of falling, according to “Increased gait variability in diabetes mellitus patients with neuropathic pain.”
The study, published in the Journal of Diabetes and Its Complications, compared patients with at least moderate neuropathic pain with those who had no pain. Researchers used a portable device to measure gait parameters, such as step length and step velocity.

Amputation rates decrease significantly in patients with PAD

Temporal trends and geographic variation of lower-extremity amputation in patients with peripheral artery disease (PAD): Results from U.S. Medicare 2000–2008” found that amputation rates have decreased significantly, but that significant patient and geographic variations remain.
The study, published in the Journal of the American College of Cardiology, found that among 2,730,742 older patients with identified PAD, the overall rate of lower extremity amputation decreased from 7,258 per 100,000 patients to 5,790 per 100,000. Predictors of lower-extremity amputation included male sex, black race, diabetes mellitus, and renal disease.

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A new year, with new resolutions to plan with patients

Donna Sardina, RN, MHA, WCC, CWCMS, DWC, OMS

January is traditionally the time of year when everyone starts the New Year fresh with resolutions for change—better organization, healthy living, new beginnings. This year, I want to challenge you to include your patients in your resolution planning. Work with each patient and come up with ideas to help improve their quality of life by, for instance, healing a wound, wearing a splint, keeping blood glucose levels within normal range, elevating the feet.
For resolutions to be effective, a “buy in” must exist. Most people don’t like
being told what they must do and would rather hear what they can do. So be sure to include your patients in the planning process. Ask them their opinion. Ask “What could I do differently to help you with this?” Determine if their treatments could be interfering with their lifestyle. Set mutually compatible goals. Most of all, help promote patients’ search for their own solutions.
To make an informed choice of can do instead of must do, patients must have a clear understanding of the facts, implications, and consequences. The Institute of Medicine defines health literacy as the degree to which individuals have the capacity to understand, obtain, and process basic health information needed to make appropriate health decisions. It’s easy to assume our patients know all the facts, especially if they have had the wound, ostomy, or diagnosis for many years. However, according to the 2003 National Assessment of Adult Literacy, almost 45% of the U.S. population (about 93 million Americans) have, at best, only basic health literacy skills.
To improve their health literacy, review your patients’ understanding of their situation and ask them to describe their diagnosis and treatment plan in their own words. If they can’t describe these correctly, reteach the information. Consider the possibility that you might have to use a new educational approach or method.
A new year and a new start, with a shared understanding of problems and potential solutions between the patient and wound care team can get you started on the pathway to success. To quote Zig Ziglar, “A goal properly set is halfway reached.”

Donna Sardina, RN, MHA, WCC, CWCMS, DWC, OMS
Editor-in-Chief
Wound Care Advisor
Cofounder, Wound Care Education Institute
Plainfield, Illinois

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Hyperbaric oxygen therapy for treatment of diabetic foot ulcers

By Carrie Carls, BSN, RN, CWOCN, CHRN; Michael Molyneaux, MD; and William Ryan, CHT

Every year, 1.9% of patients with diabetes develop foot ulcers. Of those, 15% to 20% undergo an amputation within 5 years of ulcer onset. During their lifetimes, an estimated 25% of diabetic patients develop a foot ulcer. This article discusses use of hyperbaric oxygen therapy (HBOT) in treating diabetic foot ulcers, presenting several case studies.
HBOT involves intermittent administration of 100% oxygen inhaled at a pressure greater than sea level. It may be given in a:
• multi-place chamber (used to treat multiple patients at the same time), compressed to depth by air as the patient breathes 100% oxygen through a face mask or hood (more…)

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Clinical Notes

New wound-swabbing technique detects more bacteria

The new Essen Rotary swabbing technique takes a few seconds longer to perform than traditional techniques, but improves bacterial count accuracy in patients with chronic leg ulcers, according to a study published by Wounds International.
Evaluation of the Essen Rotary as a new technique for bacterial swabs: Results of a prospective controlled clinical investigation in 50 patients with chronic leg ulcers” reports that Essen Rotary detected significantly more bacteria compared to standard techniques and was the only one to identify five patients with methicillin-resistant Staphylococcus aureus (MRSA), compared to three detected by other techniques.
The Essen Rotary technique samples a larger surface area of the wound, which is beneficial for detecting MRSA.
“The Essen Rotary may become the new gold standard in routinely taken bacteriological swabs especially for MRSA screenings in patients with chronic leg ulcers,” the study authors write.

Reducing HbA1c by less than 1% cuts cardiovascular risk by 45% in patients with type 2 diabetes

A study presented at the American Diabetes Association 72nd Scientific Sessions found lowering HbA1c an average of 0.8% (from a mean of 7.8% to 7.0%, the treatment target) reduced the risk of cardiovascular death by 45% in patients with type
2 diabetes.
The absolute risk of mortality from a cardiovascular event was 9.9 events per 1,000 person-years in patients with decreasing HbA1c compared to 17.8 events in patients with stable or increasing HbA1c.
HbA1c reduction and risk of cardiovascular diseases in type 2 diabetes: An observational study from the Swedish NDR” examined data from 18,035 patients in the Swedish National Diabetes Register.

CMS revises hospital, nursing home comparison websites

The Centers for Medicare & Medicaid Services (CMS) has enhanced two websites designed to help the public make informed choices about their health care.
Hospital Compare and Nursing Home Compare now have better navigation and new comparison tools. The two sites include data on quality measures, such as frequency of hospital-acquired infections, and allow the user to compare hospitals on these measures.
Improvements include easy-to-use maps for locating hospitals, a new search function that enables the user to input the name of a hospital, and glossaries that are easier to understand. It’s now also possible to access the data on the sites through mobile applications.
CMS maintains the websites, which are helpful for anyone who wants to compare facilities, not just patients on Medicare or Medicaid.
For more information, read the article in Healthcare IT News.

IOM releases report on accelerating new drug and diagnostics development

The Institute of Medicine (IOM) released “Accelerating the development of new drugs and diagnostics: Maximizing the impact of the Cures Acceleration Network—Workshop Summary.” The report is a summary of a forum that brought together members of federal government agencies, the private sector, academia, and advocacy groups to explore options and opportunities in the implementation of Cures Acceleration Network (CAN). The newly developed CAN has the potential to stimulate widespread changes in the National Institutes of Health and drug development in general.

Focus on individualized care—not just reducing swelling—in lymphedema patients

As a result of two extensive literature reviews, a researcher at the University of Missouri found that emphasizing quality of life—not just reducing swelling—is important for patients with lymphedema. Many providers and insurance companies base treatment on the degree of edema, but the volume of fluid doesn’t always correspond with the patients’ discomfort. Instead, an individualized plan of care should be developed.
The researchers found that Complete Decongestive Therapy (CDT), a comprehensive approach for treating lymphedema that includes skin and nail care, exercise, manual lymphatic drainage, and compression, may be the best form of specialized lymphedema management. For more information about CDT, watch for the November/December issue of Wound Care Advisor.

Plague case in Oregon draws national attention

An article about a case of the plague in Oregon has appeared on Huffington Post. A welder contracted the disease as a result of unsuccessfully removing a mouse from a stray cat’s mouth. Part of his hands have, in the words of the article, “darkened to the color of charcoal.” Later tests confirmed the cat had the plague.
Plague cases are rare in the United States. According to the Centers for Disease Control and Prevention, an average of 7 human cases are reported each year, with a range of 1 to 17 cases. Antibiotics have significantly reduced morality. About half of cases occur in people ages 12 to 45.

Use of negative pressure wound therapy with skin grafts

Optimal use of negative pressure wound therapy for skin grafts,” published by International Wound Journal, reviews expert opinion and scientific evidence related to the use of negative pressure wound therapy with reticulated open-cell foam for securing split-thickness skin grafts.
The article covers wound preparation, treatment criteria and goals, economic value, and case studies. The authors conclude that the therapy has many benefits, but note that future studies are needed “to better measure the expanding treatment goals associated with graft care, including increased patient satisfaction, increased patience compliance and improved clinical outcomes.”

Mechanism for halting healing of venous ulcers identified

Researchers have identified that aberrantly expressed microRNAs inhibit healing of chronic venous ulcers, according to a study in The Journal of Biological Chemistry.
Six microRNAs were plentiful in 10 patients with chronic venous ulcers. The microRNAs target genes important in healing the ulcers. In an article about the study, one of the researchers said, “The more we know about the molecular mechanisms that contribute to [the development of venous ulcers], the more we can rationally develop both diagnostic tools and new therapies.”

Hemodialysis-related foot ulcers not limited to patients with diabetes

Both patients with diabetes and those without are at risk for hemodialysis-related foot ulcers, according to a study published by International Wound Journal.
Researchers assessed 57 patients for ulcer risk factors (peripheral neuropathy, peripheral arterial disease, and foot pathology, such as claw toes, hallux valgus, promi­nent metatarsal heads, corns, callosities, and nail pathologies) at baseline, and noted mortality 3 years later.
In all, 79% of patients had foot pathology at baseline, and 18% of patients without diabetes had peripheral neuropathy. Peripheral arterial disease was present in 45% of diabetic and 30% of nondiabetic patients. Nearly half (49%) of patients had two or more risk factors. Only 12% of patients had no risk factors. The presence of peripheral arterial disease and peripheral neuropathy increased risk of mortality.
The authors of “Prevalence of risk factors for foot ulceration in a general haemodialysis population” state that the high prevalence of risk factors in nondiabetic patients indicates that they are at risk for developing foot ulcers.

Study identifies risk factors for mortality from MRSA bacteremia

A study in Emerging Infectious Diseases found that older age, living in a nursing home, severe bacteremia, and organ impairment increase the risk of death from methicillin-resistant Staphylococcus aureus (MRSA) bacteremia.
Consultation with a specialist in infectious disease lowers the risk of death, and MRSA strain types weren’t associated with mortality.
Predicting risk for death from MRSA bacteremia” studied 699 incidents of blood infection from 603 patients who had MRSA bacteremia.

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Necrotizing fasciitis: Frightening disease, potentially grim prognosis

By Lydia Meyers, BSN, RN, CWCN

Necrotizing fasciitis (NF) results from an infection that attacks the fascia and subcutaneous tissues. The primary bacterial etiology is group A streptococcus, a facultative anaerobic bacterium. However, other bacteria may contribute. Sometimes called the “flesh-eating” disease because of the potentially devastating effect on the afflicted patient, NF can be monomicrobial or polymicrobial.

The four typical settings for NF are:

  • surgical bowel or abdominal trauma surgery
  • pressure ulcer and perianal abscess
  • injection sites (especially in drug users)
  • Bartholin abscess or minor vulvovaginal infection.

Because of the rapid course and ravaging nature of acute NF, clinicians must maintain a high index of suspicion if the patient has suggestive signs and symptoms. In 1990, puppeteer Jim Henson (best known for creating the Muppets) died from NF. At that time, little was known about the progression of group A streptococcal infection.
The disease can quickly cause death, so starting immediate treatment is even more crucial than confirming the diagnosis. Once the disease is suspected, antibiotics must be given immediately and the patient must be prepared for surgery at once. NF spreads rapidly, capable of progressing from a small lesion to death in days to weeks. Thus, delayed diagnosis increases the risk of death. Lack of knowledge about the disease and inability to recognize it promptly are the main reasons many victims die. This article can improve your knowledge base.

Overview

NF was discovered in 1871 by Joseph Jones, a Confederate Army surgeon. At that time, it was called hemolytic streptococcal gangrene, nonclostridial gas gangrene, nonclostridial crepitant cellulitis, necrotizing or gangrenous erysipelas, necrotizing cellulitis, bacterial synergistic gangrene, or synergistic necrotizing cellulitis.
NF involves the fascia, muscle compartments, or both. It can affect not only the muscle fascia but the superficial fascia. NF and cellulitis differ in the amount of tissue involved and extent of tissue involvement.
The most common areas of infection are the abdominal wall, perineum, and extremities. When NF affects the perineum and scrotum, it’s called Fournier gangrene, after the French dermatologist and virologist Alfred Jean Fournier.
The most common causes are trauma, surgery, and insect bites. The disease can affect persons of any age. Such comorbidities as diabetes, chronic renal failure, immunosuppressive therapy, hypertension, obesity, and malnutrition increase susceptibility.

Pathophysiology

NF falls into four classifications based on wound microbiology. Type 1, the most common, involves polymicrobial bacteria. Type 2 results from trauma and is associated with comorbidities. Type 3, rare in this country, stems from gram-negative marine bacteria. Type 4 is a fungal infection occurring mostly in immunocompromised persons. (See Comparing types of necrotizing fasciitis by clicking the PDF icon above.)

Disease progression

The four types of NF progress in a similar way. Bacteria secrete pyrogenic exotoxin A, which stimulates cytokines. These cyto­kines damage the endothelial lining; fluid then leaks into the extravascular space.
M proteins in streptococci and β-hemolytic streptococci exacerbate the immune reaction by inhibiting phagocytosis of polymorphonuclear leukocytes and normal neutrophil chemotaxis. As the immune reaction increases, blood vessels dilate, allowing toxins to leak through vessel walls, which in turn decreases blood flow. As the cascade continues, hypoxic conditions cause facultative aerobic organisms to grow and become anaerobic. These bacteria exacerbate destruction of surrounding cells and lead to release of carbon dioxide, water, hydrogen, nitrogen, hydrogen sulfide, and methane. As the infection continues to progress, toxins spread throughout the bloodstream and the patient becomes septic.

Assessment

Obtain the patient’s medical history and description of the wound. Determine when the changes first appeared and whether the affected area seemed to get worse recently.
In all NF types, patients commonly present with a small, painful area (possibly with entry marks) but no other signs or symptoms. The wound may appear as a bulla, cellulitis, or dermatitis, representing an infection developing in underlying tissues. The skin may have a wooden-hard feel as the infection progresses to the subcutaneous space and causes necrosis. The wound becomes discolored and necrotic; drainage is rare until surgical debridement begins. The patient quickly develops fever, chills, nausea, and vomiting. As NF progresses, bullae become dark purple with darkened edges; the patient grows disoriented and lethargic, and organ failure and respiratory failure
ensue. Without treatment, the patient dies.

Diagnosis

Diagnostic tests usually include magnetic resonance imaging, complete blood count with differential, comprehensive metabolic panel, and cultures. (See Diagnostic findings in necrotizing fasciitis by clicking the PDF icon above.)

Treatment

Immediate surgical debridement and broad-spectrum antibiotics are needed to stop the immune response to infection. Clindamycin, gentamicin, penicillin, or metronidazole may be given alone or in combination until culture results are available. Supportive care includes total parenteral nutrition for nutritional support, I.V. fluids, and oxygen. Limb amputation should be done only as a last resort.
Surgical debridement involves penetrating deep into the fascia and removing all necrotic tissue. After the first debridement, release of “dishwater fluid” may occur.
Administering hyperbaric oxygen therapy (HBOT) after the first debridement increases tissue oxygenation, thus reducing tissue destruction by anaerobic bacteria. During HBOT (usually given as a 90-minute treatment), the patient breathes 100% oxygen in an environment of increasing atmospheric pressure.
HBOT should be given in conjunction with surgical debridement (usually after each debridement) and should continue until necrotic tissue ceases and cell destruction stops. HBOT also promotes collagen synthesis and neoangiogenesis (new blood vessel growth), which boosts blood supply and oxygen to tissues.
Adverse effects of HBOT include ear pain, oxygen toxicity, and seizures. Ear pain can be minimized by swallowing or yawning. If the patient continues to have ear pain, ear tubes may be inserted by an otolaryngologist. During HBOT, air breaks (intervals of breathing room air) are important in controlling oxygen toxicity (the main cause of seizures).
Throughout the HBOT treatment period, wound dressings must be simple. Well-moistened gauze dressings and an abdominal pad provide good support. Once necrotic destruction occurs, dressings depend on wound size and the need to fill cavities. The patient may require a diverting colostomy, depending on wound
location and the amount of uncontrolled diarrhea. Blood glucose levels must be monitored before and after HBOT, as this treatment affects blood glucose.

Supportive care and follow-up treatment

During initial treatment, patients need supportive care and monitoring. Once they’re out of danger, begin teaching them how to prevent NF recurrences. Advise them to control blood glucose levels, keeping the glycated hemoglobin (HbA1c) level to 7% or less. Caution patients to keep needles capped until use and not to reuse needles. Instruct them to clean the skin thoroughly before blood glucose testing or insulin injection, and to use alcohol pads to clean the area afterward.
Before discharge, help arrange the patient’s aftercare, including home health care for wound management and teaching, social services to promote adjustment to lifestyle changes and financial concerns, and physical therapy to help rebuild strength and promote the return to optimal physical health. One helpful patient resource is the National Necrotizing Fasciitis Foundation. The Centers for Disease Control and Prevention section on necrotizing fasciitis includes “Common sense and great wound care are the best ways to prevent a bacterial skin infection.”
The life-threatening nature of NF, scarring caused by the disease, and in some cases the need for limb amputation can alter the patient’s attitude and viewpoint, so be sure to take a holistic approach when dealing with the patient and family. Today, NF has a much better survival rate than 2 decades ago when Jim Henson died. In my practice, I’ve seen four NF cases. Thanks to early identification, good wound care, and HBOT, these patients suffered only minimal damage.

Selected references

Boyer A, Vargas F, Coste F, et al. Influence of surgical treatment timing on mortality from necrotizing soft tissue infections requiring intensive care management. Intensive Care Med. 2009;35(5):847-853. doi:10.1007/s00134-008-1373-4.

Cain S. Necrotizing fasciitis: recognition and care. Practice Nurs. 2010;21(6):297-302.

Centers for Disease Control and Prevention. Notes from the field: fatal fungal soft-tissue infections after a tornado—Joplin, Missouri, 2011. MMWR. 2011;60(29):992.

Chamber AC, Leaper DJ. Role of oxygen in wound healing: a review of evidence. J Wound Care. 2011; 20(4):160-164.

Christophoros K, Achilleas K, Vasilia D, et al. Postraumatic zygomycotic necrotizing abdominal wall fasciitis with intraabdominal invasion in a non immunosuppressed patient. Internet J Surg. 2007;11(1). doi:10.5580/17a8.

Ecker K-W, Baars A, Topfer J, Frank J. Necrotizing fasciitis of the perineum and the abdominal wall-surgical approach. Europ J Trauma Emerg Surg. 2008;
34(3):219-228. doi:10.1007/s00068-008-8072-2.

Hunter J, Quarterman C, Waseem M, Wills A. Diagnosis and management of necrotizing fasciitis. Br J Hosp Med. 2011;72(7):391-395.

Magel DC. The nurse’s role in managing necrotizing fasciitis. AORN J. 2008;88(6):977-982.

Phanzu MD, Bafende AE, Imposo BB, Meyers WM, Portaels F. Under treated necrotizing fasciitis masquerading as ulcerated edematous Mycobacterium ulcerans infection (Buruli ulcer). Am J Trop Med Hyg. 2012;82(3):478-481.

Ruth-Sahd LA, Gonzales M. Multiple dimensions of caring for a patient with acute necrotizing fasciitis. Dimens Crit Care Nurs. 2006;25(1):15-21.

Stevens DL, Bisno AL, Chambers HF, et al; Infectious Diseases Society of America. Practice guidelines for the diagnosis and management of skin and soft-tissue infections. Clin Infect Dis. 2005;41(10):1373-1406.

Su YC, Chen HW, Hong YC, Chen CT, et al. Laboratory risk indicator for necrotizing fasciitis score and the outcomes. ANZ J Surg. 2008;78(11):968-972.

Taviloglu K, Yanar H. Necrotizing fasciitis: strategies for diagnosis and management. World J Emerg Surg. 2007;2:19.

Lydia Meyers is a medical reviewer for National Government Services in Castleton, Indiana, and a clinical liaison at CTI Nutrition in Indianapolis. She has 11 years of wound care experience in nursing homes, wound clinics, and home health.

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Providing wound care in the home: An option to explore

By Connie Johnson, RN, BSN, WCC, LLE, DAPWCA

Jim, a 52-year-old patient with colon cancer, received a new ostomy. He needed a custom fit for his appliance, which took 10 days. During this time, trying to obtain a good seal and treat the peristomal area wasn’t easy. Despite my best efforts, Jim’s skin was denuded from contact with stool. Although he was in great discomfort, he wanted to wait until my next visit to tell me about the problem. Fortunately, his wife was worried and contacted me directly.

Jim lives in a neighborhood with a low crime rate, so I’m able to see him within
a few hours of his wife’s call, even though it’s late at night. As it turns out, I make
extra visits to help him manage his stoma until the customized appliance is ready.  As with any home care situation, I’m ready to do my best for my patient.

Many home-care patients like Jim benefit from the interventions of a wound care clinician (WCC). More than one-third of all home-care admissions are wound related, and home wound care has become one of the fastest growing needs and skills in home-care services. So if you’re a WCC, you may want to consider home care as a practice option.

Delivering wound care in the home differs dramatically from delivering it in the hospital. Given the complexity of wound care and the multiple factors that affect healing, home wound care is a challenge. Some patients have chronic conditions, such as diabetes or wounds or open sores that don’t heal easily. In other cases, the patient or caregiver is unable to change dressings. That’s where the WCC comes in.

Special needs of home-care patients

Like other patients across the continuum of care, home-care wound patients require accurate and thorough wound assessment, as well as documentation that provides information about wound status and aids development of a plan that supports healing.
Of course, the plan of care must address the whole patient, not just the “hole” in the patient. The WCC must take into account comorbidities, individual wound-care requirements, assistance the patient may need due to physical or mental deficits, and nutritional support. Additional factors that affect wound-care strategies include wound characteristics, family support, and insurance guidelines and reimbursement.

Role of the WCC

The WCC’s role in home care includes providing clinical expertise, working with other healthcare team members, and providing education.

  • The WCC provides clinical expertise regarding wound and ostomy care to ensure delivery of the highest quality of care. This expertise helps reduce the need for readmissions to the emergency department (ED) for wound-related complications. The WCC also plays a vital role in product awareness, formu-lary development, and maintenance of cost-effective, evidence-based practice in the agency.
  • Working with other healthcare team members, the WCC serves as patient advocate, strengthening the relationship between patient and healthcare team members while promoting care coordination to help the patient achieve goals. Effective communication with the patient’s primary care pro­vider is essential to delivering the best-quality, research-based wound care. A tool for strengthening such communication is the SBAR (Situation-Background-Assessment-Recommendation) technique. SBAR structures conversations so all parties provide complete yet concise information. (See SBAR wound and skin provider communication record by clicking the PDF icon above).
  • The WCC educates patients and family members about wound healing, dressing applications, and other interventions. Teaching families allows them to be involved in the patient’s care and start to take ownership of it. The WCC also educates home health aides, who can play a vital role in preventing such problems as pressure ulcers and may be responsible for ensuring staff members are aware of the products, procedures, and dressings available.

Challenges of home care

If you’re a WCC and considering home care as a career option, know that practicing in the home can be a real eye opener. For starters, consider geography. Shortly after I started as a wound care nurse/consultant in home care, I was visiting patients all over New Jersey, some days driving 200 miles. As I quickly discovered, once you enter the home, don’t assume you’ll simply change a dressing and then be on your way. Instead, you may find you are, in essence, the family case manager who’s expected to “fix everything.” This role requires equal doses of planning and creativity.

What’s more, expect to do some improvising. In acute-care settings, all the supplies you may need to prevent infection—gowns, gloves, masks—usually are within arm’s reach. But in home care, these supplies may be absent, meaning you’ll need to set up the cleanest environment you can under the circumstances. That might mean using disposable drapes and dressings. Be sure to carry large amounts of hand sanitizer.

Dressing selection is perhaps the biggest challenge in home wound care because
it involves not just wound-specific issues but financial and practical considerations. The ideal dressing in the home is one that needs to be changed only every other day, at most. Evidence shows it’s not practical to try to change dressings two or three times daily at home unless the family is providing care.

Develop a checklist

Because the home environment may lack all the resources you need, remembering every­thing you need to do before you leave the patient’s home may be challenging. To help keep things on track, develop a checklist of reminders that covers these points:

  • Have necessary medical appointments been arranged? Does the patient have transportation to appointments?
  • Are there sufficient supplies in the home?
  • Is there enough medicine? If not, who will pick up the medicine?
  • Are consults needed, such as social worker or physical therapist?
  • Who will help with any activities of daily living that the patient is unable to do?
  • Does the patient with diabetes have a glucometer?

Hours and safety concerns

Typical home wound-care hours are 8:30 a.m. to 4:30 p.m. But realistically, expect variations. For instance, as you’re about to leave, the patient might say, “My wife isn’t feeling well. Could you take her blood pressure?” This means you’ll stay a little longer.

When planning home visits, be aware of safety concerns. If visiting after hours could put you in danger, it’s safer to instruct the patient to call an ambulance and go to the local ED.

Reimbursement

Reimbursement is an important factor in wound care in the home. To be eligible for home care through Medicare, patients must be homebound—meaning they don’t routinely travel to run errands or visit or they’re not able to obtain or receive needed medical services. (With private insurance and workers’ compensation, eligibility requirements may be less restrictive.)

Know that a Medicare patient receives home care as an “episode.” Episodes are 60-day periods; within each 60-day episode, a $592 cap is allotted should a patient require supplies for wound or ostomy care needs. Except for negative-pressure wound therapy, a home care agency can’t bill Medicare for products used; instead, the home-care agency is responsible for the cost of all topical wound-care products and dressings. Agencies may keep patients on service even if they exceed the allowed amount, although patients reaching maximum benefits commonly are discharged from service. Home-care agencies have no choice but to discharge Medicare patients they find aren’t truly homebound.

Also, be aware that Medicare views home health service as an interim service. When a patient is no longer making progress, Medicare expects that the family will provide the patient’s care or the patient will enter a skilled care facility. So it’s important to work hard to obtain good outcomes—not just for the patient but to maintain Medicare reimbursement. Like many private insurance companies, Medicare reimbursement is based on pay for performance; if an agency doesn’t deliver optimal outcomes, it receives lower reimbursement, increasing its financial burden.

A worthwhile option

WCCs use their knowledge and clinical expertise to improve patient outcomes and teach patients, families, and other healthcare team members. They also give the agency recommendations for care and supplies that are evidence based and reflect current best practices in wound care. Accomplishing these goals in a timely fashion under various constraints can be challenging. But if you choose to work in the home, try to keep a smile on your face and joy in your voice for each patient and family. If you like challenges and want a job where you can apply your creativity and function independently, becoming a home-care WCC might be the right choice for you.

Connie Johnson provides wound care in the home and in acute-care settings.

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“We don’t have a Doppler”

By: Donna Sardina, RN, MHA, WCC, CWCMS, DWC

Venous leg ulcers are the most common cause of lower extremity ulcers, affecting 1% of the U.S. population (approximately 3 million people). Annual treatment costs for venous disease in this country range from $1.9 to $3.5 billion.

The gold standard for venous ulcer treatment includes moist wound healing and compression therapy. But before compression wraps are applied, we must determine if adequate arterial blood flow exists—or consequences could be life-threatening.

Raise your hand if you know what ABI is. Now raise your hand if you routinely obtain ABIs for patients. I’ve been asking these questions at wound care seminars around the country for the last 10 years, and the answers are always the same:
Between 50% and 95% of the audience know what an ABI is, but only 1% to 2% say they perform the ABI test. My next question is “Why not?”

The ABI (ankle brachial index) is a non­invasive screening test performed with a handheld vascular Doppler and a blood pressure cuff. This simple test helps determine if you can safely apply compression therapy, aids diagnosis of peripheral arterial disease, and even helps monitor the efficacy of therapeutic interventions.

Numerous standard practice guidelines from various organizations recommend obtaining ABIs to determine arterial blood flow. These organizations include the American College of Cardiology, American Heart Association, American Diabetes Association, Society for Vascular Nursing, Wound Ostomy Continence Nurses, Society for Vascular Medicine, U.S. Preventive Services Task Force, and World Union of Wound Healing Societies.

Instructions for most compression therapy products include indications for Doppler ABI readings above 0.8. So if you don’t get an ABI reading, how can you safely apply these products? A report by Allie and colleagues found that more than 50% of lower extremity amputations occur without previous vascular testing of any type, including ABI.

So why aren’t more practitioners obtaining ABIs? The leading answer: “We don’t have a Doppler.” I understand the dilemma of not having equipment or the funds to get the equipment. But do we want to tell a patient who has just lost her leg, “Oh, sorry. We didn’t have a Doppler”?

It’s our responsibility and duty as WCCs, wound care experts, and health care clinicians to ensure we provide the highest standard of care for patients with venous leg ulcers. So communicate with management, explaining what you need and why you need it. Work with your medical supply company for an extended payment plan. Hold a fundraiser. Consider using the alternative Lanarkshire Oximetry Index procedure. Or send the patient to a wound clinic or other healthcare provider who can perform the test.

It’s time to step it up and take greater accountability—and to no longer use the excuse “We don’t have a Doppler.”

Donna Sardina, RN, MHA, WCC, CWCMS, DWC
Editor-in-Chief
Wound Care Advisor
Cofounder, Wound Care Education Institute
Plainfield, Illinois

Selected references
Allie DE, Hebert CJ, Lirtzman MD, et al. Critical limb ischemia: a global epidemic. A critical analysis of current treatment unmasks the clinical and economic costs of CLI. EuroIntervention. 2005; 1(1):75-84. http://www.ncbi.nlm.nih.gov/pubmed/
19758881
. Accessed June 4, 2012.

Lazarus GS, Cooper DM, Knighton DR, et al. Definitions and guidelines for assessment of wounds and evaluation of healing. Arch Dermatol. 1994; 130(4):489-493. http://www.ncbi.nlm.nih.gov/pubmed/8166487. Accessed June 4, 2012.

Mayfield JA, Reiber GE, Sanders LJ, Janisse D, Pogach LM. Preventive foot care in diabetes. Diabetes Care. 2004;27(suppl 1):S63-S64. doi:10.2337/diacare.27.2007.S63.
McGuckin M, Kerstein MD. Venous ulcers and the family physician. Adv Skin Wound Care. 1998;11(7): 344-346. http://journals.lww.com/aswcjournal/Abstract/1998/11000/Venous_Leg_Ulcers_and_the_Family_Physician.13.aspx. Accessed June 4, 2012.

Olin JW, Allie DE, Belkin M, et al. ACCF/AHA/ACR/SCAI/SIR/SVM/SVN/SVS 2010 performance measures for adults with peripheral artery disease: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Performance Measures, the American College of Radiology, the Society for Cardiac Angiography and Interventions, the Society for Interventional Radiology, the Society for Vascular Medicine, the Society for Vascular Nursing, and the Society for Vascular Surgery (Writing Committee to Develop Performance Measures for Peripheral Artery Disease). J Am Coll Cardiol. 2010;56(25):2147-2181. http://content.onlinejacc
.org/cgi/content/full/j.jacc.2010.08.606
. Accessed June 4, 2012.

O’Meara S, Al-Kurdi D, Ologun Y, Ovington LG. Antibiotics and antiseptics for venous leg ulcers. Cochrane Database Syst Rev. 2010;(1):CD003557. http://www.ncbi.nlm.nih.gov/pubmed/20091548. Accessed June 4, 2012.

Rooke TW, Hirsch AT, Misra S, et al; Society for Cardiovascular Angiography and Interventions; Society of Interventional Radiology; Society for Vascular Medicine; Society for Vascular Surgery. 2011 ACCF/AHA focused update of the guideline for the management of patients with peripheral artery disease (updating the 2005 guideline): a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. J Am Coll Cardiol. 2011;58(19):2020-2045. http://
content.onlinejacc.org/cgi/content/full/j.jacc.2011.08.023v1
. Accessed June 4, 2012.

U.S. Preventive Services Task Force. Screening for peripheral arterial disease: brief evidence update. 2005. http://www.uspreventiveservicestaskforce.org/uspstf05/pad/padup.htm. Accessed June 4, 2012.

Valencia IC, Falabella A, Kirsner RS, Eaglstein WH. Chronic venous insufficiency and venous leg ulceration. J Am Acad Dermatol. 2001;44(3):401-421. http://www.ncbi.nlm.nih.gov/pubmed/11209109. Accessed June 4, 2012.

World Union of Wound Healing Societies. Principles of best practice:. Compression in venous leg ulcers: a consensus document. London: MEP Ltd; 2008. www.woundsinternational.com/pdf/content_25.pdf. Accessed June 4, 2012.

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Learning to love your job

By Joan C. Borgatti, MEd, RN

The alarm clock goes off too early, and you jump-start the day with a cup of coffee and a short stack of reasons why you hate your job. Sound familiar? Although you can’t expect to love every aspect of your job, you should expect to get some degree of fulfillment from your career. If you don’t, maybe your job isn’t the problem. Maybe you just need a little career resuscitation to turn things around. First, let’s be clear. I’m not urging you to stay in a job that exposes you to unsafe conditions, a toxic environment, or a toxic boss. Call the code and get out, because emotional and physical well-being comes first. However, know that blaming our jobs for our dissatisfaction may be easier than taking a closer look at the chaos in our lives. It’s even easier not to fix what’s wrong, instead consoling ourselves with the company of like-suffering people. And misery does love company.

If you can’t have the job you love, love the job you have. The daily grind of Herculean demands can wear down even the most conscientious clinicians—to the point where we’re no longer seeking job satisfaction but struggling just to make it through the day. But you can turn things around. To enhance your job satisfaction, try these sure-fire methods. (Okay, maybe they’re not sure-fire, but they’re sure worth a try.)

Know when to say no

When your life feels out of balance, any demand will feel as if it’s sucking the living daylights out of you. You’ll be tempted to blame your job, when the truth is you’re giving in to a bottomless pit called “trying to please everyone else.” Learn to say no to the things you don’t want and say yes to more of what you do want. Say no to anything that’s not a priority (making cupcakes for the second-grade class). Say yes to quality time with your family and quality time for you (that painting class you’ve always wanted to take). Key question: How would the quality of your life improve if you started to say no to demands that don’t enhance its quality, and say yes to the things you want more of?

Learn to see the big picture again

Recognize that, in ways you can’t see or perhaps even imagine, you’ve forever touched and changed the lives of the patients you’ve cared for. The ability to touch and heal another person is a gift that’s available to few people in other professions, who struggle to find meaning in what they do. Key questions: In what ways have you helped your patients? What special qualities and skills are uniquely yours to give? How can you make the most of the opportunity to make a difference in patients’ lives?

Attract the positive

When we’re miserable, other miserable people gravitate to us. Soon a collective mindset takes root and the negative “group think” becomes a life-form unto
itself, festering and insatiable. So be careful of the company you keep. Surround yourself with positive people—clinicians committed to making a difference. This will reenergize you and give you a new perspective on your job.

Learn to be what you want

To be more passionate about your job,
focus on the aspects of the job that excite you the most. Passion is an energy form that attracts more of the same. Say, for instance, you’d love to buy a red convertible. One day you go out for a drive and you see red convertibles everywhere! Have more red convertibles suddenly driven off the assembly line? No; your mind is preselecting, or noticing the convertibles, for you. In the same way, you can preselect either more passion or more misery.

Pay it forward

Keep in mind that novice clinicians proceed through a learning curve. Rather than moan about how inexperienced they are, take one under your wing and turn her or him into the sort of clinician you’d want at your bedside if you were ill. You’ll rediscover your profession through this clinician’s eyes.

Communicate cleanly and ask for what you want

People can’t read your mind. To get more of what you want and less of what you don’t want, learn to communicate in a clean, neutral way. Let’s say you consistently wind up with the more difficult patient assignments. And let’s assume your boss does that because you’re the most clinically experienced clinician—not because she’s the devil incarnate. You can respond in one of two ways.

•    Gripe to a coworker: “Can you believe she gave me that workload again?”
•    Communicate with your boss cleanly and neutrally: “Lately it seems you’ve given me the more difficult patient assignments, and I appreciate your faith in me. Is there some way we can give other clinicians a chance to gain more experience caring for difficult patients? I’d be happy to act as a resource for them.”

See the difference? The first response does nothing to change the situation; it simply fuels the collective misery mindset. The second response communicates to the boss in a respectful, appreciative way (yes, bosses need appreciation, too!) and seeks a solution that pleases everyone.

Take action and follow your STAR

Using the mnemonic device “STAR” can guide you toward actions that increase your job satisfaction.

Success on your terms. We all define success differently. If you grew up in a family of college professors, chances are the healthcare field didn’t fit your family’s definition of success; your job dissatisfaction may stem from your inner turmoil over not meeting your family’s expectations. To key into these expectations, recall the “you should” and “you ought to” messages you heard as a child.

Key question: Take a moment to think about what success in your career would look and feel like. Then complete this sentence: “I know I will be successful when I have/I am _________.”

True north as your guide. A large part of how we judge ourselves, our worth, our success, and our happiness hinges on how other people see us. But true success, true happiness, and true job satisfaction are determined from within, by your inner compass. The captain of a ship must always know where true north is, because it never changes (much like our core values). He must know the difference between true north and compass north. Unlike true north, compass north is affected by the earth’s magnetic pull. In life, compass north is the magnetic pull of “you should do this” and “you ought to do that” messages. For instance, if you’re a skilled wound care clinician but have always been particularly passionate about lymphedema, you may dislike your job. That’s because you’ve ignored your true north (inner truth) and given in to compass north (fear of walking away from those current skills, and so forth). Don’t be afraid to follow your true north.

Key question: What steps can you take right now that will move you closer to your true north?

Assess and understand who you are. Most of us can articulate what our strengths are. But that’s not enough. To get more enjoyment from your job, you must stretch and exercise your strengths and look for ways to use them. If the opportunities aren’t there, create them.

Let’s say you’re the one everyone turns to for help when there’s a patient with a lower extremity ulcer. To leverage that strength, offer to hold an education program.

Key questions: List your strengths, and then ask yourself: How can I leverage these? If you’re too humble to recognize your strengths, give yourself 20 lashes (figuratively speaking); then ask a trusted colleague, “What do you see as my strengths?”

Risk it all (within reason). When we play it safe, our lives and careers can be pretty dull. We’re meant to push the envelope and stretch our capabilities. It puts the juice back in our lives and helps us grow and feel more alive. Nothing shakes out the cobwebs and brings excitement back to your career more than taking a risk. With every risk comes the threat of failure, but know that failure is just another form of data that helps you readjust and move forward. Don’t give failure more power than your successes.

Key questions: If you weren’t afraid, what risks would you consider taking to enhance your career? What’s holding you back?

Embrace change

An Eastern saying goes something like this: You can stand by a river, but you can never put your feet in the same place twice. The river is your life. It’s not stagnant; it’s ever changing. Nothing in life stays the same—not personal circumstances, relationships, or careers. You aren’t the clinician you were 10 years ago or even last year. So tweak your professional life to better reflect the clinician you are today. With a little attention, you could make your job the career of your dreams.

Selected references
Bird J. Do you need to love your job? Not necessarily. www.worklifebalance.com/love-your-job.html. Accessed May 21, 2012.

Borgatti J. Frazzled, Fried…Finished? A Guide to Help Nurses Find Balance. Borgatti Communications; 2004. www.joanborgatti.com and www.booklocker.com.

Colvin C. How to love the job you’ve got. www.womentodaymagazine.com/career/lovejob.html. Accessed May 21, 2012.

Johnson Montesol S. How to love the job you’ve got. http://developmentcrossroads.com/2011/01/how-to-love-the-job-you%E2%80%99ve-got/. Accessed May 21, 2012.

Joan C. Borgatti, MEd, RN, is the owner of Borgatti Communications in Wellesley Hills, Mass., which provides writing, editing, and coaching services. You may e-mail her at [email protected].

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Clinical Notes

Study finds ultrasound therapy improves venous ulcer healing

In a study of 10 venous ulcers not responding to treatment, the use of noncontact ultrasound significantly reduced the wound area over 4 weeks of treatment.

It has been unclear exactly how ultrasound achieves its positive results. The
authors of “A prospective pilot study of ultrasound therapy effectiveness in refractory venous leg ulcers,” an article published online on February 1 by the International Wound Journal, found that patients treated with ultrasound and compression therapy had reduced inflammatory cytokines and bacterial counts, but the reduction wasn’t statistically significant.

The study found another important benefit for patients-reduced pain.

Serum albumin is not a goodindicator of nutritional status

Traditionally the standard of practice for wound care patients has been to review albumin blood levels as a measure of nutritional status and the effect of nutritional interventions. But as noted in The Role of Nutrition in Pressure Ulcer Prevention and Treatment: National Pressure Ulcer Advisory Panel White Paper, recent studies show that hepatic proteins (albumin, trans­thyretin, and transferrin) correlate with the severity of an underlying disease, not nutritional status. Moreover, many factors can alter albumin levels even when protein intake is adequate, including infection, acute stress, surgery, cortisone excess, and hydration status.

For these reasons, the National Pressure Ulcer Advisory Panel (NPUAP) and the Academy of Nutrition and Dietetics (previously known as The American Dietetic Association) recommend against using serum proteins as a nutritional assessment tool. Evaluation of lab values is just one part of the nutritional assessment process and should be considered along with other factors such as ensuring that the patient receives what is prescribed; daily food/fluid intake; changes in weight status, diagnosis, and medications; and clinical improvement in the wound.

For more information read “Serum proteins as markers of malnutrition: What are we treating?” and “Albumin as an indicator of nutritional status: Professional refresher.”

A profile of outpatients with wounds

Wound care outcomes and associated cost among patients treated in US outpatient wound centers: Data from the US Wound Registry” a study using data from the US Wound Registry to determine outcomes and costs for outpatient wound care, found the mean patient age was 61.7 years, slightly more than half (52.3%) were male, most (71.3%) were white, and more than half (52.6%) were Medicare beneficiaries.

Other interesting findings:

  • The mean number of serious comorbid conditions was 1.8.
  • The most common comorbid conditions were obesity/overweight (71.3%), cardiovascular or peripheral vascular disease (51.3%), and diabetes (46.8%).
  • Nearly two-thirds (65.8%) of wounds healed, with an average healing time
    of 15 weeks.
  • In half of the wounds that healed, patients received only moist wound care and no advanced therapeutics.
  • The mean cost for wound healing was $3,927.

The authors of the article, published in March’s Wounds, analyzed 5,240 patients with 7,099 wounds in 59 hospital-based outpatient wound centers in 18 states over 5 years.

LOI index comparable to ABI for assessing PAD in patients with type 2 diabetes

The pilot study “Lanarkshire Oximetry Index as a diagnostic tool for peripheral arterial disease in type 2 diabetes,” published in Angiology, compared the gold standard ankle bra­chial index (ABI) to the Lanarkshire Oximetry Index (LOI) in 161 patients with type 2 diabetes. Researchers assessed the patients for peripheral artery disease (PAD, defined as ABI < 0.9) using both ABI and LOI.

Using a LOI cut-off value of 0.9., the sensitivity and specificity for PAD were 93.3% and 89.1%, respectively. The study concluded that LOI is a “potentially useful alternative diagnostic test for PAD” in patients with type 2 diabetes.

LOI is a noninvasive procedure similar to ABI; both indices indicate whether it’s safe to apply compression to the limb of a patient who has lower leg ulceration or venous hypertension. With LOI, a pulse oximeter is used in place of a hand-held Doppler to determine the index.

Start planning for World Diabetes Day

It’s not too early to begin planning for World Diabetes Day, November 14. Started by the World Health Organization (WHO) and the International Diabetes Federation (IDF), the day is designed to raise global awareness of diabetes.

Access materials, including posters, a campaign book, and the Word Diabetes Day Logo, from IDF’s website, which also has activity ideas.

WHO estimates that more than 346 million people worldwide have diabetes, and the number is expected to double by 2030. World Diabetes Day is celebrated on November 14 to mark the birthday of Frederick Banting who, along with Charles Best, was instrumental in the discovery of insulin in 1922.

Guidelines for PAD in patients with diabetes and foot ulceration published

February’s issue of Diabetes/Metabolism Research and Reviews includes “Specific guidelines for the diagnosis and treatment of peripheral arterial disease in a patient with diabetes and ulceration of the foot 2011,” which is based on two companion International Working Group on the Diabetic foot papers. The guidelines state that if a patient’s PAD is impairing wound healing, revascularization through bypass or endovascular technique must be considered except in a few cases such as severely frail patients. Limb salvage rates after revascularization procedures are about 80-85%, and there is ulcer healing in > 60% at 12 months.

Other points of particular interest to wound care professionals:

  • Patients with PAD and a foot infection are at high risk for major limb amputation, so should be treated as a “medical emergency”, preferably within 24 hours.
  • Half of patients with diabetes, a foot ulcer, and PAD die within 5 years because of higher cardiovascular morbidity and mortality. Cardiovascular risk management should include “support for cessation of smoking, treatment of hypertension, and prescription of a statin as well as low-dose aspirin or clopidrogel.

AHA statement focuses on PAD in women

A call to action: Women and peripheral artery disease: A scientific statement from the American Heart Association” summarizes evidence in this area and addresses risk-management issues. The statement notes that women (particularly black females) are more likely than men to experience graft failure of limb loss and calls for more research related to PAD and gender.

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Caring for chronic wounds: A knowledge update

By: Patricia A. Slachta, PhD, RN, ACNS-BC, CWOCN

Wound care has come a long way in just a few decades. With our expanded knowledge of wound healing and recent advances in treatment, we’re now able to assess wounds more accurately, recognize wound-related problems sooner, provide better interventions, and reduce morbidity.

To bring you up to date on current evidence-based wound management, this article focuses on assessing patients with chronic wounds, optimizing wound healing with effective wound-bed preparation, and selecting an appropriate dressing.

Wound chronicity and cause

Developing an appropriate plan of care hinges on conducting a thorough, accurate evaluation of both the patient and the wound. The first step is to determine whether the wound is acute or chronic.
•    A chronic wound is one that fails to heal within a reasonable time—usually
3 months.
•    An acute wound heals more quickly, causing minimal functional loss in the part of the body with the wound.
Identifying the cause of the wound also is essential. If the wound etiology is unknown, explore the patient’s medical history (including medication history) for clues to possible causes. Also review the patient’s history for conditions that could impede wound healing. (See What factors hamper healing? by clicking the PDF icon above)
Other important aspects of assessment include evaluating the patient’s nutritional status, quantifying the level of pain (if present), and gauging the patient’s self-care abilities.

General physical appearance

Conduct a general head-to-toe physical examination, focusing on the patient’s height, weight, and skin characteristics.

Height, weight, and weight trend

On admission, the patient’s height and weight should be measured to ensure appropriate nutritional and pharmacologic management. After a weight gain or loss, various factors may complicate wound healing. For instance, involuntary weight loss and protein-energy malnutrition may occur in both acute-care and long-term-care patients.

Especially note trends in your patient’s weight. For a long-term-care patient, a 5% weight loss over 30 days or a 10% loss over 180 days is considered involuntary. Arrange for a nutritional consult for any patient with an involuntary weight loss, as adequate nutrition is essential for general well-being and wound healing. (See A wound on the mend by clicking the PDF icon above.)

Skin color

Evaluate the patient’s skin color in light of ethnic background. If you note erythema—especially on a pressure point over a bony prominence—examine this area carefully for nonblanching erythema. Keep in mind that darkly pigmented skin doesn’t show such erythema and subsequent blanching, yet the patient may still be in jeopardy. So in dark-skinned patients, check for differences in skin color, temperature, or firmness compared to adjacent tissue; these differences may signify skin compromise.

Skin texture and turgor

Generally, healthy skin feels smooth and firm and has an even surface and good turgor (elasticity). To test turgor, gently grasp and pull up a fold of skin on a site such as the anterior chest below the clavicle. Does the skin return to place almost immediately after you release it, or does it stand up (“tent”)? Tenting indicates dehydration. But keep in mind that skin loses elasticity with age, so elderly patients normally have decreased turgor.

Skin temperature

With normal circulatory status, the skin is warm and its temperature is similar bilaterally. Areas of increased warmth or coolness suggest infection or compromised circulation. Be sure to check the temperature of skin surrounding the wound.

Wound assessment

Proper wound assessment can significantly influence patient outcome. Measure the wound carefully and document the condition of the wound bed. Remember that accurate descriptions are essential for guiding ongoing wound care. Repeat wound measurement and wound-bed assessment at least weekly, after the wound bed has been cleaned and debrided.

Keep in mind that assessing a chronic wound can be challenging. Wounds commonly have irregular shapes that can change quickly. Also, the multiple clinicians caring for the same patient may each describe the wound a bit differently.

Wound location

Note the precise anatomic location of the wound, as this can influence the wound care plan. A venous ulcer on the lower leg, for instance, requires different care than an arterial ulcer in the same site or a pressure ulcer on the ischium.

Circumference and depth

Use a paper or plastic measuring device to measure wound circumference and depth in centimeters (cm) or millimeters (mm). To promote accurate assessment of healing, be sure to use the same reference points each time you measure the wound.

You can use several methods to measure circumference. The most commonly used method of measurement is done in the head to toe direction. Measure the wound at its greatest length in that direction & measure the width at a 90 degree angle, at the widest point of the wound. Then multiply these two measurements (greatest length x greatest width) to obtain the total wound area. Although such linear measurements are imprecise, they yield gross information relative to wound healing when repeated over time.

Classify wound depth as partial thickness or full thickness.
•    Partial-thickness wounds are limited to the skin layers and don’t penetrate the dermis. They usually heal by reepithelialization, in which epidermal cells regenerate and cover the wound. Abrasions, lacerations, and blisters are examples of partial-thickness wounds.
•    Full-thickness wounds involve tissue loss below the dermis.
(Note: Pressure ulcers usually are classified by a four-stage system and diabetic foot ulcers by a grading system. Both systems are beyond this article’s scope.)
Measure and record wound depth based on the deepest area of tissue loss. To measure depth, gently place an appropriate device (such as a foam-tipped applicator) vertically in the deepest part of the wound, and mark the applicator at the patient’s skin level. Then measure from the end of the applicator to the mark to obtain depth.

Surrounding skin and tissue

Inspect for and document any erythema, edema, or ecchymosis within 4 cm of the wound edges, and reevaluate for these signs frequently. Because compromised skin near the wound is at risk for breakdown, preventive measures may be necessary.

Appearance of wound-bed tissue

Document viable tissue in the wound bed as granulation, epithelial, muscle, or subcutaneous tissue. Granulation tissue is connective tissue containing multiple small blood vessels, which aid rapid healing of the wound bed; appearing red or pink, it commonly looks shiny and granular. Epithelial tissue consists of regenerated epidermal cells across the wound bed; it may be shiny and silvery.

Check for nonviable tissue (also called necrotic, slough, or fibrin slough tissue), which may impede wound healing. It may vary in color from black or tan to yellow, and may adhere firmly or loosely to the wound bed. (See Picturing a necrotic wound by clicking the PDF icon above.)

Be sure to document the range of colors visible throughout the wound. Identify the color that covers the largest percentage of the wound bed. This color—and its significance—guide dressing selection.

Wound exudate

Document the amount, color, and odor of exudate (drainage) in the wound. Exudate with high protease levels and low growth factor levels may impede healing.

If the wound is covered by an occlusive dressing, assess exudate after the wound has been cleaned. Describe the amount of exudate as none, minimal, moderate, or heavy.

Describe exudate color as serous, serosanguineous, sanguineous, or purulent. Serous exudate is clear and watery, with no debris or blood present. Serosanguineous exudate is clear, watery, and tinged pink or pale red, denoting presence of blood. Sanguineous exudate is bloody, indicating active bleeding. Purulent exudate may range from yellow to green to brown or tan.

Describe wound odor as absent, faint, moderate, or strong. Note whether the odor is present only during dressing removal, if it disappears after the dressing is discarded, or if it permeates the room.

Wound edges

Wound edges indicate the epithelialization trend and suggest the possible cause and chronicity of the wound. The edges should attach to the wound bed. Edges that are rolled (a condition called epibole) indicate a chronic wound, in which epithelial cells are unable to adhere to a moist, healthy wound bed and can’t migrate across and resurface the wound.

Undermining and tracts

Gently probe around the wound edges and in the wound bed to check for undermining and tracts. Undermining, which may occur around the edges, presents as a space between the intact skin and wound bed (resembling a roof over part of the wound). It commonly results from shear forces in conjunction with sustained pressure. A tract, or tunnel, is a channel extending from one part of the wound through subcutaneous tissue or muscle to another part.

Measure the depth of a tract or undermining by inserting an appropriate device into the wound as far as it will go without forcing it. Then mark the skin on the outside where you can see or feel the applicator tip. Document your findings based on a clock face, with 12 o’clock representing the patient’s head and 6 o’clock denoting the feet. For instance, you might note “2.0-cm undermining from 7:00 to 9:00 position.”

Pain level

Ask the patient to quantify the level of pain caused by the wound, using the pain scale designated by your facility. Find out which pain-management techniques have relieved your patient’s pain in the past; as appropriate, incorporate these into a pain-management plan. Reevaluate the patient’s pain level regularly.

Wound-bed preparation

An evolving science, wound-bed preparation is crucial for minimizing or removing barriers to healing. The goal is to minimize factors that impair healing and maximize the effects of wound care. The key elements of wound-bed preparation are controlling bioburden and maintaining moisture balance. (For online resources on wound-bed preparation and other wound-care topics, see Where to get more information by clicking the PDF icon above.)

Controlling bioburden

Necrotic tissue and exudate harbor bacteria. A wound’s bioburden—the number of contaminating microbes—contributes to poor healing. All chronic wounds are considered contaminated or colonized, but not necessarily infected. In a colonized wound, healing is impeded as bacteria compete for nutrients; also, bacteria have harmful byproducts. To control bioburden, the wound must be cleaned and necrotic tissue must be debrided.

Cleaning the wound. Clean the wound before assessing it and applying a dressing. Use a noncytotoxic agent (typically, potable water, normal saline irrigating solution, or an appropriate wound-cleaning agent). Anti­septic solutions generally aren’t recommended for wound irrigation or dressings because they’re toxic to fibroblasts and other wound-repairing cells. If you must use such a solution, make sure it’s well diluted.

To ensure gentle cleaning or irrigation, pour solution over the wound bed or gently flush the wound with solution (using a 60-mL catheter-tip syringe) until the drainage clears. Know that pressurized irrigation techniques and whirlpool therapy aren’t recommended for wound cleaning because they disturb cell proliferation in the wound bed.

Debriding the wound. Debridement removes slough and necrotic tissue. Nonselective debridement techniques remove any type of tissue within the wound bed, whereas selective methods remove only necrotic tissue. (See Wound debridement techniques by clicking the PDF icon below.)

Maintaining moisture balance

To maintain moisture balance in the wound bed, you must manage exudate and keep the wound bed moist. The proper dressing (which may stay in place for days or longer) supports moist wound healing and exudate management. To minimize fluid pooling, a drain may be inserted into the wound. Negative-pressure wound therapy also may aid removal of excess exudate.

Choosing an appropriate dressing

The wound dressing plays a major role in maintaining moisture balance. Dressing selection is challenging because of the large number and variety of dressings available. Each product has specific actions, benefits, and drawbacks, so determining which dressing best suits the patient’s needs is a multifaceted process.

Dressing choice depends on such factors as wound type and appearance, exudate, presence or absence of pain, and required dressing change frequency. (See Dressings Options by clicking the PDF icon above.)

In a traditional dressing, gauze is applied in layers. The initial (contact) layer in the wound bed absorbs drainage and wicks it to the next layer; most often, this layer consists of woven cotton gauze or synthetic gauze. Remove the gauze gently, because it may be stuck to the wound or incision (especially if the gauze is cotton). For easier removal, moisten the dressing with normal saline solution to loosen it.

With a traditional dressing, the cover layer or secondary dressing is an abdominal pad with a “no-strike-through” layer next to the outside of the dressing. Be aware that wet-to-dry dressings are highly discouraged for their nonselective debriding effect and inability to provide a moist wound bed.

Reassess the patient’s wound at least weekly (after preparing the wound bed and dressing the wound) to determine healing progress. Keep in mind that wound-care management is a collaborative effort. Once you’ve assessed the patient, discuss your findings and subsequent wound management with other members of the team.

Wound care wisdom

Getting wiser about wound care will help your patients achieve good outcomes. Poor wound healing can be frustrating to patients, family members, and healthcare providers alike. Chronic wounds may necessitate lifestyle changes and lead to severe physical consequences ranging from infection to loss of function and even death. By performing careful assessment, tailoring patients’ wound care to wound etiology, and using evidence-based protocols to manage wounds, you can promote speedier wound healing, help lower morbidity, and improve quality of life.

Selected references
Bryant RA, Nix DP. Acute and Chronic Wounds: Current Management Concepts. 4th ed. St. Louis, MO: Mosby; 2011.

Gardener SE, Frantz R, Hillis SL, Park H, Scherubel M. Diagnostic validity of semiquantitative swab cultures. Wounds. 2007;(19)2:31-38.

Krasner DL, Rodeheaver GT, Sibbald RG. Chronic Wound Care: A Clinical Source Book for Healthcare Professionals. 4th ed. Wayne, PA: HMP Communications; 2007.
Langemo DK, Brown G. Skin fails too: acute, chronic, and end-stage skin failure. Adv Skin Wound Care. 2006;19(4):206-211.

Langemo DK, Anderson J, Hanson D, Hunter S, Thompson P. Measuring wound length, width, and area: which technique? Adv Skin Wound Care. 2008;21:42-45.

Milne C, Armand OC, Lassie M. A comparison of collagenase to hydrogel dressings in wound debridement. Wounds. 2010:22(11):270-274.

National Pressure Ulcer Advisory Panel and European Pressure Ulcer Advisory Panel. Prevention and Treatment of Pressure Ulcers: Clinical Practice Guideline. Washington, DC: National Pressure Ulcer Advisory Panel; 2009.

Ovington LG. Hanging wet-to-dry dressings out to dry. Adv Skin Wound Care. 2002;15(2):79-86.

Sibbald RG, Coutts P, Woo KY. Reduction of bacterial burden and pain in chronic wounds using a new polyhexamethylene biguanide antimicrobial foam dressing—clinical trial results. Adv Skin Wound Care. 2011;24(2):78-84.

Solway DR, Consalter M, Levinson DJ. Microbial cellulose wound dressing in the treatment of skin tears in the frail elderly. Wounds. 2010:22(1):17-19.

Wound Ostomy and Continence Nurses Society. Guideline for Prevention and Management of Pressure Ulcers. Mt. Laurel, NJ: Author; 2010

Patricia A. Slachta is a Clinical Nurse Specialist at The Queens Medical Center in Honolulu, Hawaii and an adjunct nursing instructor at the Technical College of the Lowcountry in Beaufort, South Carolina.

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