Maggot Therapy: A Revival of Ancient Medicine
"Maggots remove dead tissue without anesthesia, reducing risk for surgical candidates."
— Dr. Ronald Sherman, pioneer of modern maggot therapy
Maggot therapy—the use of sterile fly larvae to clean wounds—is being employed in medical cases where surgery is not an option. The larvae are FDA-cleared as medical devices and are raised in laboratories to be germ-free.
How It Works
Maggots remove dead tissue by secreting digestive enzymes that dissolve infected tissue, leaving healthy tissue intact. The process is painless, as the larvae do not have teeth and do not bite.
Key Applications
- Used for patients deemed poor surgical candidates, including those with heart failure or awaiting organ transplants.
- During the COVID-19 pandemic, maggot therapy was used remotely via video calls to treat a patient with a gangrenous foot wound.
- In one case, a patient with a severe infected wound at Tufts Medical Center recovered after failing other treatments.
Limitations and Challenges
"There are already many wound management options... maggot therapy is not standard of care."
— Dr. Sameer Patel, chief of plastic and reconstructive surgery at Temple University Hospital
- Insurance reimbursement is inadequate; a supply for one or two wounds costs around $400.
- Some physicians consider the therapy non-standard due to a lack of high-quality data.
- The therapy is not effective on wounds infected with Pseudomonas bacteria.
- The "yuck factor" leads some doctors to avoid prescribing maggots.
Voices from the Field
- Dr. David Armstrong, director of the USC Limb Preservation Program, reported that maggot therapy saved a patient from losing more of his foot.
- Lisa Baxter, clinical director at Tufts Medical Center, stated that her team uses maggot therapy once or twice a year for patients who cannot have surgery.