REBOA During CPR in Trauma Patients
REBOA may be considered during CPR for traumatic cardiac arrest from non-compressible torso hemorrhage, but current evidence shows it does not improve mortality and may increase complications compared to standard resuscitation alone. 1, 2
Guideline-Based Recommendation
The European trauma guideline states that resuscitative endovascular balloon occlusion of the aorta may be considered in patients with non-compressible life-threatening traumatic hemorrhage 1. However, this recommendation predates the most recent high-quality evidence showing potential harm.
Critical Evidence Analysis
The 2026 systematic review and meta-analysis—the highest quality evidence available—reveals important nuances 3:
- In hemorrhagic shock (not yet arrested): REBOA shows mortality benefit (OR: 0.18,95% CI: 0.12-0.28)
- In cardiac arrest: Benefit is substantially reduced (OR: 0.32,95% CI: 0.15-0.69)
- Complications increase significantly: 7.8-fold higher complication rates with REBOA
- Early mortality shows greatest effect, but overall in-hospital mortality benefit diminishes
Most critically, the 2026 narrative review analyzing the only randomized controlled trial to date found that REBOA in hemodynamically unstable patients does not confer mortality benefit and may increase mortality compared to standard care 2.
When to Consider REBOA During CPR
Proceed with REBOA if ALL criteria met:
- Witnessed traumatic cardiac arrest with short downtime (<10 minutes)
- Suspected non-compressible torso hemorrhage below the diaphragm (abdominal/pelvic)
- Experienced team available with established REBOA protocols
- Definitive hemorrhage control (OR or interventional radiology) immediately accessible
- No severe traumatic brain injury (contraindication to prolonged hypoperfusion)
Do NOT use REBOA if:
- Prolonged arrest (>10-15 minutes)
- Compressible hemorrhage amenable to direct pressure/packing
- No immediate access to definitive hemorrhage control
- Inexperienced team or first-time attempt during arrest
Technical Execution During CPR
Access method: Ultrasound-guided common femoral artery access is superior to landmark technique 4:
- 55% first-pass success with ultrasound vs. 45% requiring multiple attempts with landmarks
- Reduces access time by 1-6 minutes
- Decreases vascular complications from 9.2% to 5.5%
- Use 7 Fr sheath (associated with fewer complications)
Balloon placement during CPR:
- Zone I (supraceliac) for abdominal/pelvic hemorrhage during arrest 5
- Inflate balloon during ongoing chest compressions
- Target systolic BP >80 mmHg if return of spontaneous circulation (ROSC) achieved
- Limit occlusion time to <40 minutes to minimize ischemia-reperfusion injury 6
Realistic Outcomes
Case series data shows sobering reality 7, 5:
- 58% of arrest patients achieve ROSC with REBOA
- Only 38% of those with ROSC survive to OR
- Overall 90% mortality in traumatic arrest patients receiving REBOA
- Survivors who achieve ROSC can have full neurologic recovery
Critical Pitfalls
- Delayed access attempts: Multiple failed percutaneous attempts increase mortality—convert to cutdown early if not successful within 2 attempts
- Prolonged occlusion: >60 minutes causes irreversible ischemic injury, acute kidney injury, and compartment syndrome
- Using REBOA as substitute for definitive care: It's a bridge only—OR/IR must be immediately available
- Inappropriate patient selection: REBOA during prolonged arrest wastes time better spent on resuscitative thoracotomy or termination
Alternative Approach
Resuscitative thoracotomy with aortic cross-clamp remains the standard for traumatic arrest when REBOA expertise is unavailable or access cannot be rapidly obtained. The 2026 meta-analysis shows REBOA superiority only when performed by experienced teams within structured trauma systems 3.
In most cardiac arrest scenarios, standard ACLS with rapid transport to definitive hemorrhage control is more appropriate than attempting REBOA, given the lack of mortality benefit and increased complications 2.