
Estimated End-Tidal Sevoflurane Concentration to Maintain Optimal Anesthetic Depth During Cardiopulmonary Bypass: A Meta-Analysis
This meta-analysis examined how much end-tidal sevoflurane is needed to maintain appropriate anesthetic depth during cardiopulmonary bypass. Across five prospective studies involving 129 adults, the pooled estimate was 0.88 vol% for a BIS target of 40–60. Older patients required less sevoflurane, while body temperature did not significantly change dosing needs. The findings offer a practical reference point, although evidence certainty remained limited by heterogeneity and small study sizes.




