When and how to culture a chronic wound

how to culture a chronic wound

By Marcia Spear, DNP, ACNP-BC, CWS, CPSN

Chronic wound infections are a significant healthcare burden, contributing to increased morbidity and mortality, prolonged hospitalization, limb loss, and higher medical costs. What’s more, they pose a potential sepsis risk for patients. For wound care providers, the goal is to eliminate the infection before these consequences arise.

Most chronic wounds are colonized by polymicrobial aerobic-anaerobic microflora. However, practitioners continue to debate whether wound cultures are relevant. Typically, chronic wounds aren’t cultured unless the patient has signs and symptoms of infection, which vary depending on whether the wound is acute or chronic. (See Differentiating acute and chronic wounds.) (more…)

Read More

A young Black scientist discovered a pivotal leprosy treatment in the 1920s − but an older colleague took the credit

Dr. Isabel Kerr, a European missionary, administering to a patient a chaulmoogra oil treatment in 1915, prior to the invention of the Ball Method. George McGlashan Kerr, CC BY

By Mark M. Lambert, Des Moines University

Hansen’s disease, also called leprosy, is treatable today – and that’s partly thanks to a curious tree and the work of a pioneering young scientist in the 1920s. Centuries prior to her discovery, sufferers had no remedy for leprosy’s debilitating symptoms or its social stigma.

This young scientist, Alice Ball, laid fundamental groundwork for the first effective leprosy treatment globally. But her legacy still prompts conversations about the marginalization of women and people of color in science today.

As a bioethicist and historian of medicine, I’ve studied Ball’s contributions to medicine, and I’m pleased to see her receive increasing recognition for her work, especially on a disease that remains stigmatized.

Who was Alice Ball?

Alice Augusta Ball, born in Seattle, Washington, in 1892, became the first woman and first African American to earn a master’s degree in science from the College of Hawaii in 1915, after completing her studies in pharmaceutical chemistry the year prior.

After she finished her master’s degree, the college hired her as a research chemist and instructor, and she became the first African American with that title in the chemistry department.

Impressed by her master’s thesis on the chemistry of the kava plant, Dr. Harry Hollmann with the Leprosy Investigation Station of the U.S. Public Health Service in Hawaii recruited Ball. At the time, leprosy was a major public health issue in Hawaii.

Doctors now understand that leprosy, also called Hansen’s disease, is minimally contagious. But in 1865, the fear and stigma associated with leprosy led authorities in Hawaii to implement a mandatory segregation policy, which ultimately isolated those with the disease on a remote peninsula on the island of Molokai. In 1910, over 600 leprosy sufferers were living in Molokai.

This policy overwhelmingly affected Native Hawaiians, who accounted for over 90% of all those exiled to Molokai.

The significance of chaulmoogra oil

Doctors had attempted to use nearly every remedy imaginable to treat leprosy, even experimenting with dangerous substances such as arsenic and strychnine. But the lone consistently effective treatment was chaulmoogra oil.

Chaulmoogra oil is derived from the seeds of the chaulmoogra tree. Health practitioners in India and Burma had been using this oil for centuries as a treatment for various skin diseases. But there were limitations with the treatment, and it had only marginal effects on leprosy.

The oil is very thick and sticky, which makes it hard to rub into the skin. The drug is also notoriously bitter, and patients who ingested it would often start vomiting. Some physicians experimented with injections of the oil, but this produced painful pustules.

Dr. Isabel Kerr, a European missionary, administering to a patient a chaulmoogra oil treatment in 1915, prior to the invention of the Ball Method. George McGlashan Kerr, CC BY
Dr. Isabel Kerr, a European missionary, administering to a patient a chaulmoogra oil treatment in 1915, prior to the invention of the Ball Method. George McGlashan Kerr, CC BY

The Ball Method

If researchers could harness chaulmoogra’s curative potential without the nasty side effects, the tree’s seeds could revolutionize leprosy treatment. So, Hollmann turned to Ball. In a 1922 article, Hollmann documents how the 23-year-old Ball discovered how to chemically adapt chaulmoogra into an injection that had none of the side effects.

The Ball Method, as Hollmann called her discovery, transformed chaulmoogra oil into the most effective treatment for leprosy until the introduction of sulfones in the late 1940s.

In 1920, the Ball Method successfully treated 78 patients in Honolulu. A year later, it treated 94 more, with the Public Health Service noting that the morale of all the patients drastically improved. For the first time, there was hope for a cure.

Tragically, Ball did not have the opportunity to revel in this achievement, as she passed away within a year at only 24, likely from exposure to chlorine gas in the lab.

Ball’s legacy, lost and found

Ball’s death meant she didn’t have the opportunity to publish her research. Arthur Dean, chair of the College of Hawaii’s chemistry department, took over the project.

Dean mass-produced the treatment and published a series of articles on chaulmoogra oil. He renamed Ball’s method the “Dean Method,” and he never credited Ball for her work.

Ball’s other colleagues did attempt to protect Ball’s legacy. A 1920 article in the Journal of the American Medical Association praises the Ball Method, while Hollmann clearly credits Ball in his own 1922 article.

Ball is described at length in a 1922 article in volume 15, issue 5, of Current History, an academic publication on international affairs. That feature is excerpted in a June 1941 issue of Carter G. Woodson’s “Negro History Bulletin,” referring to Ball’s achievement and untimely death.

Joseph Dutton, a well-regarded religious volunteer at the leprosy settlements on Molokai, further referenced Ball’s work in a 1932 memoir broadly published for a popular audience.

Historians such as Paul Wermager later prompted a modern reckoning with Ball’s poor treatment by Dean and others, ensuring that Ball received proper credit for her work. Following Wermager’s and others’ work, the University of Hawaii honored Ball in 2000 with a bronze plaque, affixed to the last remaining chaulmoogra tree on campus.

In 2019, the London School of Hygiene and Tropical Medicine added Ball’s name to the outside of its building. Ball’s story was even featured in a 2020 short film, “The Ball Method.”

The Ball Method represents both a scientific achievement and a history of marginalization. A young woman of color pioneered a medical treatment for a highly stigmatizing disease that disproportionately affected an already disenfranchised Indigenous population.

In 2022, then-Gov. David Ige declared Feb. 28 Alice Augusta Ball Day in Hawaii. It was only fitting that the ceremony took place on the Mānoa campus in the shade of the chaulmoogra tree.The Conversation


Mark M. Lambert, Assistant Professor of Behavioral Medicine, Medical Humanities, and Bioethics, Des Moines University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Read More

Salivary peptide promotes wound healing, research reveals

salivary peptide wound healing wca

A study published online in The FASEB Journal delves into the mystifying fact that wounds in your mouth heal faster and more efficiently than wounds elsewhere. Until now, it was understood that saliva played a part in the wound healing process, though the extent of its role was unknown. The study examined the effects of salivary peptide histatin-1 on angiogenesis (blood vessel formation), which is critical to the efficiency of wound healing. Researchers found that histatin-1 promotes angiogenesis, as well as cell adhesion and migration. (more…)

Read More

Antibiotic use in pressure injury infections

antibiotic overuse pressure injury infection

Antibiotic overuse contributes to the problems of antibiotic resistance and healthcare acquired infections, such as Clostridium difficile. Antibiotic stewardship programs improve patient outcomes, reduce antimicrobial resistance, and save money. These programs are designed to ensure patients receive the right antibiotic, at the right dose, at the right time, and for the right duration. (more…)

Read More

3 reasons why cornea is the new Glaucoma

Glaucoma

development of glaucomaOphthalmology is a great specialty partly because procedures, devices and drugs constantly evolve, keeping us learning and giving our patients better care. Ask your colleagues in other specialties, and you’ll find that the pace of change in most other medical fields is not nearly as rapid as in ours.

Over the past few years, this pace of change has been very evident in glaucoma, where minimally invasive procedures have greatly diminished the frequency of trabeculectomy and tube shunt procedures. In this issue of OSN, our cover story focuses on a specialty that’s now moving as quickly as glaucoma. And here are three reasons I believe cornea will continue to be the “next big thing” in eye care: (more…)

Read More

Wound care treatment explained at Rotary

Wound Care Solutions at Community Hospitals and Wellness Centers-Bryan

When treating people for wounds, the care team preforms both a comprehensive diagnosis and comprehensive treatment, Kathy Khandaker, director of wound care at Community Hospitals and Wellness Centers-Bryan, told the Bryan Rotary Club at its Friday meeting.

The wound care clinic opened at CHWC in 2006, added ostomy care in 2007, continence care in 2010 and added a full-time physician in 2015. The care team includes a wound care nurse, a hyperbaric oxygen therapy technician and a receptionist in addition to the physician. (more…)

Read More

Managing chronic venous leg ulcers — what’s the latest evidence?

Managing chronic venous leg ulcers — what’s the latest evidence?

Chronic venous leg ulcers (CVLUs) affect nearly 2.2 million Americans annually, including an estimated 3.6% of people over the age of 65. Given that CVLU risk increases with age, the global incidence is predicted to escalate dramatically because of the growing population of older adults. Annual CVLU treatment-related costs to the U.S. healthcare system alone are upwards of $3.5 billion, which are directly related to long healing times and recurrence rates of over 50%.

CVLUs are not only challenging and costly to treat, but the associated morbidity significantly reduces quality of life. That makes it critical for clinicians to choose evidence-based treatment strategies to achieve maximum healing outcomes and minimize recurrence rates of these common debilitating conditions. These strategies, which include compression therapy, specialized dressings, topical and oral medications, and surgery, are used to reduce edema, facilitate healing, and avert recurrence. (more…)

Read More

Using fat to help wounds heal without scars

fat heal scars adipogenic culture

Philadelphia – Doctors have found a way to manipulate wounds to heal as regenerated skin rather than scar tissue. The method involves transforming the most common type of cells found in wounds into fat cells – something that was previously thought to be impossible in humans. Researchers began this work at the Perelman School of Medicine at the University of Pennsylvania, which led to a large-scale, multi-year study in connection with the Plikus Laboratory for Developmental and Regenerative Biology at the University of California, Irvine. They published their findings online in the journal Science on Thursday, January 5th, 2017.Fat cells called adipocytes are normally found in the skin, but they’re lost when wounds heal as scars. The most common cells found in healing wounds are myofibroblasts, which were thought to only form a scar. Scar tissue also does not have any hair follicles associated with it, which is another factor that gives it an abnormal appearance from the rest of the skin. Researchers used these characteristics as the basis for their work – changing the already present myofibroblasts into fat cells that do not cause scarring. (more…)

Read More

Skin substitutes: Understanding product differences

Skin substitutes (also called tissuebased products and dermal replacements) are a boon to chronic wound management when traditional therapies have failed. When selecting skin substitutes for their formularies, wound care professionals have many product options—and many decisions to make.

Repair of skin defects has been a pressing concern for centuries. As early as the 15th century BC, Egyptian physicians chronicled procedures and herbal treatments to heal wounds, including xenografts (skin from another species). The practice of applying allografts (human cadaver skin) to wounds was first documented in 1503. In 1871, autologous skin grafting (skin harvested from the the person with the wound) was tried. Next came epithelial- cell seeding, which involves scraping off the superficial epithelium of healthy skin and transplanting the cells onto the wound. (more…)

Read More

Herpes zoster: Understanding the disease, its treatment, and prevention

Herpes zoster: Understanding the disease, its treatment, and prevention

Herpes zoster (HZ, also called shingles) is a painful condition that produces a maculopapular and vesicular rash. Usually, the rash appears along a single dermatome (band) around one side of the body or face.

In most cases, pain, tingling, burning, or itching occurs a few days before the rash. Next, blisters form, scabbing over in 7 to 10 days. In rare cases, the rash is widespread, resembling varicella zoster (VZ, or chickenpox) rash. Pain can range from mild to severe and may be dull, burning, or gnawing. It may last weeks, months, or even years after the blisters heal. Shingles on the face may impair vision or hearing. (more…)

Read More

Practicing emotional intelligence may help reduce lateral violence

It’s been a stressful day at work—nothing new. One confused patient pulled off her ostomy bag, you’re having difficulties applying negative-pressure wound therapy on another, and a third patient’s family is

angry with you. We all experience stressful days, but unfortunately, sometimes we take our stress out on each other. Too often, this ineffective way of identifying and managing stress leads nurses to engage in lateral violence. (more…)

Read More

Preparing the wound bed: Basic strategies, novel methods

The goal of wound-bed preparation is to create a stable, well-vascularized environment that aids healing of chronic wounds. Without proper preparation, even the most expensive wound-care products and devices are unlikely to produce positive outcomes.

To best prepare the wound bed, you need to understand wound healing physiology and wound care basics, as well as how to evaluate the patient’s overall health and manage wounds that don’t respond to treatment. (See Normal wound healing.) (more…)

Read More
1 2 3 4