Overview
HBOT is UHMS-approved for compromised skin grafts and flaps — specifically those failing due to ischaemia, infection, or inadequate blood supply. Routine use for uncomplicated grafts is not indicated; HBOT is reserved for salvage of threatened tissue.
Skin grafts and tissue flaps rely on adequate blood supply (initially diffusion, later neovascularisation) for survival. When grafts or flaps show signs of failure — pallor, cyanosis, prolonged capillary refill, infection — HBOT can be used as salvage therapy. The elevated plasma oxygen supports tissue viability during the critical window before neovascularisation establishes.
HBOT is not indicated for routine graft or flap support. It is used when there is clinical evidence of compromise — threatened tissue that would otherwise be lost. Early initiation (within 48 hours of recognised compromise) significantly improves outcomes.
How HBOT Works for This Condition
HBOT delivers dissolved oxygen directly to graft or flap tissue with marginal vascular supply, maintaining cellular viability during the critical window. HIF-1α-driven angiogenesis accelerates neovascularisation. Enhanced antimicrobial activity reduces infection-mediated graft failure.
GRADE Evidence Rating
Perrins 1967 RCT + subsequent case series support HBOT for compromised grafts.
| GRADE Domain | Assessment |
|---|---|
| Risk of bias | Moderate |
| Consistency | Consistent |
| Directness | Direct |
| Precision | Moderate |
GRADE methodology: Grading of Recommendations Assessment, Development and Evaluation. See GRADE Working Group.
Clinical Protocol
| Typical protocol | 20–30 sessions at 2.0–2.4 ATA |
|---|---|
| Evidence level | Moderate — UHMS approved |
| FDA status | FDA-approved indication |
Early intensive course: 2–3 sessions per day for the first 48 hours of recognised compromise. Then daily sessions until clinical resolution — typically 10–30 total sessions.
Evidence Base
UHMS Tier 1 approved indication based on multiple case series and the Perrins 1967 landmark study.
Cautions & Considerations
- Reserved for compromised (threatened) grafts/flaps — not routine use.
- Early initiation critical.
- Coordinated with surgical team.
Key Research & References
- Perrins 1967
- UHMS Indications Manual
Indexed Studies for This Condition
Linked entries in the HBOT Studies Database.
Frequently Asked Questions
Does every skin graft benefit from HBOT?
No. Routine uncomplicated grafts heal without HBOT. HBOT is specifically for grafts or flaps showing signs of compromise — pallor, prolonged capillary refill, early infection.
How quickly should HBOT start?
Within 48 hours of recognised compromise. Delay significantly reduces benefit.
Research disclaimer: This article summarises published research for educational purposes only. Nothing here is medical advice. HBOT is a prescription medical treatment that must be administered under physician supervision in appropriately certified chambers. Discuss any treatment decisions with a qualified clinician.