Enzymatic Debridement as a Tissue-Sparing Wound Bed Preparation Strategy in a Preterm Newborn With Postoperative Wound Dehiscence: An Off-Label Case Report
This case report demonstrates that off-label bromelain-based enzymatic debridement is a safe and effective tissue-sparing strategy for managing complex postoperative wound dehiscence in a preterm newborn, leading to rapid wound closure without adverse events.
Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer
Healing a wound is a delicate biological negotiation, especially when the patient is a newborn born too soon. In these tiny bodies, the skin is not just thin; it is structurally immature, with layers that do not yet hold together firmly and a defense system that reacts differently to injury than an adult's would. When a surgical incision fails to close properly—a complication known as wound dehiscence—the situation becomes critical. The body cannot simply patch the gap; it must first clear away dead or damaged tissue to make room for new growth. However, removing this dead tissue is a high-stakes balancing act. If a doctor scrapes too hard, they risk tearing away the fragile, living skin underneath, causing more damage. If they are too gentle, the dead tissue remains, blocking healing and inviting infection. For decades, the standard approach has been to use sharp instruments or let the body's own fluids do the work slowly, but in the most complex cases, neither option is safe or fast enough.
This challenge came to a head in the case of a late preterm baby girl, born at 33 weeks, who faced a severe complication after surgery to remove a large tumor near the base of her spine. The surgery had gone as planned, but six days later, the incision had opened up completely. The wound was a deep, full-thickness gap, roughly three centimeters long and twelve centimeters wide, sitting dangerously close to the baby's anus. This location made standard treatments impossible; the risk of fecal contamination was too high to use vacuum-assisted closure devices, and the baby's skin was too fragile for aggressive surgical scraping. The wound was covered in a thick layer of dead, fibrinous tissue, inflamed and red, with no sign of new growth. The medical team faced a dilemma: the wound needed to be cleaned to heal, but the tools usually used to clean it could destroy the baby's remaining healthy tissue.
The medical team, a group of surgeons, neonatologists, and wound care specialists, decided to try a different path. They turned to an enzyme-based treatment, a method already proven effective for cleaning severe burns but rarely used on surgical wounds, and never before in a preterm newborn. The active ingredient was bromelain, an enzyme derived from pineapples that has a unique ability to digest dead protein without harming living cells. In a controlled setting within the neonatal intensive care unit, the team applied a gel containing this enzyme directly onto the wound bed. They covered the area with a clear film to keep it sealed and left it for four hours. During this time, the baby was sedated to ensure she felt no pain, and her vital signs were monitored constantly.
When the team removed the gel and rinsed the area, the transformation was immediate and precise. The enzyme had selectively dissolved the thick, dead layer of tissue that had been blocking the wound, while leaving the healthy, living skin underneath completely intact. Within twenty-four hours, the wound bed was clean, showing small points of bleeding that indicated healthy tissue was present and ready to repair itself. The redness and swelling began to fade rapidly. Following this cleaning, the team supported the healing process with gentle, non-invasive therapies, including light treatment to calm inflammation and injections of substances that help cells move and rebuild. Over the next three weeks, the wound slowly filled in with new tissue and closed completely.
The outcome suggests that this enzyme-based cleaning method can be a safe and effective way to prepare a wound for healing in newborns when other options are too dangerous. The team observed no negative side effects from the procedure, and the baby recovered without further complications. While this is a single case and cannot be taken as a universal rule, it demonstrates that in highly specific situations where a wound is stuck in a cycle of inflammation and dead tissue, a chemical agent can do the work of a scalpel without the risk of cutting away living skin. It offers a new possibility for doctors to clear the way for healing in the most vulnerable patients, provided the treatment is done with extreme care and in a specialized environment. The success of this approach relies on the unique ability of the enzyme to distinguish between what is dead and what is alive, a precision that mechanical tools often struggle to achieve in such fragile tissue.
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