HBOT for Compromised Skin Grafts & Flaps | NorCal Hyperbarics Concord, CA

Skin grafts and reconstructive flaps are fundamental tools of plastic and reconstructive surgery, used to restore skin coverage and function following cancer resection, traumatic injury, burn reconstruction, chronic wound management, and correction of congenital or acquired deformities. A skin graft is a segment of skin harvested from one area of the body and transplanted to a wound site, where it relies on the recipient wound bed for oxygen and nutrients until it establishes its own blood supply. A flap is a segment of tissue — skin, subcutaneous fat, muscle, and often bone — transferred with its own blood supply intact (pedicle flap) or reattached microsurgically (free flap).

Graft and flap compromise occurs when the recipient tissue bed cannot support the oxygen and nutrient demands of the transferred tissue — most commonly because the bed is ischemic (from vascular disease or previous surgery), irradiated (from prior radiation therapy), chronically infected, or has insufficient vascularity to support capillary ingrowth and tissue integration. These are conditions in which the standard expectation for reconstruction — that the wound bed will provide adequate oxygenation for graft take — simply cannot be met without intervention.

Compromised skin grafts and flaps are a recognized UHMS-approved indication for HBOT, reflecting the substantial evidence base supporting its use in improving reconstructive outcomes in difficult tissue environments. Common clinical scenarios include post-mastectomy reconstruction in irradiated breasts, head and neck reconstruction after cancer surgery, lower extremity grafts in patients with peripheral vascular disease, and acute trauma reconstruction.

Skin graft and flap failure is fundamentally a problem of oxygen delivery. Successful graft take requires the graft to receive sufficient oxygen from the recipient wound bed — first by plasmatic imbibition (direct oxygen diffusion from wound bed fluid) and then by inosculation (connection of graft vessels with recipient bed vessels). Flap survival depends on adequate perfusion of the entire flap territory, including distal regions that may be borderline in terms of blood supply from the pedicle. When the recipient bed is ischemic, fibrotic, irradiated, or otherwise poorly vascularized, both mechanisms fail — and HBOT directly addresses this failure.

At 2.0 to 2.5 atmospheres of 100% oxygen, HBOT raises plasma oxygen concentrations to levels sufficient to support graft and flap tissue viability even when vascular perfusion is marginal. More importantly, it triggers angiogenesis in the recipient wound bed through the release of vascular endothelial growth factor (VEGF) and the activation of endothelial progenitor cells — building the new capillary network that grafts require for permanent establishment and that ischemic flap territories require for consolidated survival.

For patients with irradiated recipient beds — a particularly challenging setting common after head and neck cancer, breast cancer, and pelvic cancer reconstruction — HBOT directly reverses the radiation-induced endarteritis and tissue hypoxia that makes conventional reconstruction so difficult. The Marx protocol, which involves HBOT both before and after surgical intervention in irradiated fields, is a well-established approach supported by substantial clinical evidence. A series of studies document significantly higher graft take rates and lower flap necrosis rates with perioperative HBOT compared to surgery alone. NorCal Hyperbarics coordinates closely with plastic and reconstructive surgeons throughout the Bay Area to time HBOT sessions optimally around surgical procedures.