Organ support & nutrition

Outcomes in Obese Adult Venoarterial Extracorporeal Membrane Oxygenation: A Systematic Review

J Cardiothorac Vasc AnesthPublished Systematic review

Authors' conclusion

Overall, current evidence does not demonstrate a consistent association between BMI and mortality in patients undergoing VA-ECMO.

Study context

Population
Adults undergoing venoarterial ECMO (VA-ECMO), articles from 2000 to 2022
Participants
1,196 adults · 5 studies
Comparison
Body mass index (BMI) ≥30 vs BMI <30
Outcome
Mortality
Methodological detailsqualitative synthesis, χ2 analysis
  • Qualitative synthesis
  • χ2 analysis

Pooled result

As reported in the abstract

P = 0.6

Safety

Complications, BMI ≥35 vs BMI 17.5-24.9 (one study) · more complications in obese

P = 0.002

Most common complications

Acute renal failure
15.0%-53.3%
Major bleeding
7.5%-42.0%

Original publication

Outcomes in Obese Adult Venoarterial Extracorporeal Membrane Oxygenation: A Systematic Review. J Cardiothorac Vasc Anesth. Published 30 May 2026. doi:10.1053/j.jvca.2026.05.066

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