Overview
HBOT is a UHMS-approved indication for acute traumatic ischaemias including crush injury, compartment syndrome, and threatened limb viability. The elevated oxygen tension overcomes ischaemic hypoxia in compromised tissue, reduces oedema via vasoconstriction, and limits reperfusion injury.
Severe crush injuries and compartment syndrome produce acute tissue ischaemia with high risk of necrosis, amputation, and systemic complications. Standard management includes urgent surgical decompression (fasciotomy for compartment syndrome, debridement for crush injury), fluid resuscitation, and infection management. HBOT is a validated adjunct that improves outcomes.
The Bouachour et al. 1996 RCT (J Trauma) is foundational — showing improved tissue healing and reduced complications when HBOT was added to standard surgical care in severe crush injury. The protocol delivers 2.5 ATA sessions in the first 24 hours of injury with continued daily sessions over 1–2 weeks.
Clinical use is at trauma centres with hyperbaric capability. Not all crush injuries require HBOT — the indication is for severe injuries with threatened tissue viability.
How HBOT Works for This Condition
HBOT reduces reperfusion injury (a major mechanism of post-ischaemic tissue damage) via anti-inflammatory effects. Mild vasoconstriction reduces oedema while elevated plasma oxygen maintains tissue oxygenation despite reduced flow. Enhanced neutrophil function reduces infection risk in open injuries.
GRADE Evidence Rating
Bouachour 1996 double-blind RCT showed strong benefit for Gustilo III crush injury. Replicated across smaller trials.
| GRADE Domain | Assessment |
|---|---|
| Risk of bias | Low |
| Consistency | Consistent |
| Directness | Direct |
| Precision | Moderate |
GRADE methodology: Grading of Recommendations Assessment, Development and Evaluation. See GRADE Working Group.
Clinical Protocol
| Typical protocol | 3 sessions in first 24 hours at 2.0–2.4 ATA, then daily |
|---|---|
| Evidence level | Moderate — UHMS approved |
| FDA status | FDA-approved indication |
Standard protocol: 2.5 ATA sessions, 90 minutes with air breaks. Three sessions in the first 24 hours (every 6–8 hours), then daily for 7–14 days depending on clinical course. Coordinated with surgical team.
Evidence Base
Crush injury HBOT is UHMS Tier 1 with the Bouachour 1996 RCT as foundational evidence.
Cautions & Considerations
- Must be initiated urgently (within 24 hours) for maximum benefit.
- Does not replace surgical decompression — adjunct to standard trauma care.
- Patients may require ventilator support — multiplace capability often needed.
Key Research & References
- Bouachour et al. 1996 (J Trauma)
- UHMS Indications Manual
Indexed Studies for This Condition
Linked entries in the HBOT Studies Database.
Frequently Asked Questions
When is HBOT indicated for crush injury?
For severe crush injuries with threatened tissue viability — not for minor crush trauma. The surgical team identifies candidates and coordinates with the hyperbaric service.
Does HBOT prevent amputation?
In severe crush injuries with threatened limbs, HBOT reduces the rate of amputation and improves tissue healing when combined with standard surgical care.
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.