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Minerva Anestesiologica 2018 November;84(11):1298-306

DOI: 10.23736/S0375-9393.18.12465-5

Copyright © 2018 EDIZIONI MINERVA MEDICA

lingua: Inglese

Volatile anesthetics versus propofol in the cardiac surgical setting of remote ischemic preconditioning: a secondary analysis of a Cochrane Systematic Review

Carina BENSTOEM 1 , Andreas GOETZENICH 2, Rüdiger AUTSCHBACH 2, Gernot MARX 1, Christian STOPPE 1, Thomas BREUER 1

1 Department of Intensive Care Medicine and Intermediate Care, Medical Faculty, RWTH Aachen University, Aachen, Germany; 2 Department of Thoracic and Cardiovascular Surgery, Medical Faculty, RWTH Aachen University, Aachen, Germany



INTRODUCTION: So far, the concept of remote ischemic preconditioning (RIPC) failed its translation from experimental to clinical studies. In addition to our Cochrane Systematic Review, we systematically assessed the use of the intravenous anesthetic propofol, as a potential confounding factor.
EVIDENCE ACQUISITION: We searched CENTRAL, MEDLINE, Embase and Web of Science. We included randomized controlled trials comparing RIPC with no RIPC in adult patients scheduled for coronary artery bypass graft surgery (with or without valve surgery) receiving either exclusively propofol or exclusively volatile anesthetics. Two authors independently assessed methodological quality and extracted data. We report odds ratios (ORs) with 95% confidence intervals as our summary statistics are based on random-effects models.
EVIDENCE SYNTHESIS: We included 14 studies involving 4060 participants. We found no difference in treatment effect between the propofol and volatile anesthetic groups when RIPC or no RIPC is applied on a composite endpoint (all-cause mortality, non-fatal myocardial infarction and/or any new stroke), all-cause mortality, non-fatal myocardial infarction, stroke, or length of stay on ICU. On cardiac markers, RIPC did show a treatment effect on cardiac troponin T measured as AUC 72 hours (SMD -0.80, CI -1.34, -0.25) in the propofol group. However, these findings have to be interpreted with great caution, to date only a very limited number of patients received volatile anesthetics in RIPC trials (minimum N.=15, maximum N.=232).
CONCLUSIONS: Present data do not permit a final assessment regarding the role of volatile or intravenous anesthetics as a possible confounding factor in RIPC trials.


KEY WORDS: Ischemic preconditioning - Thoracic surgery - Anesthetics

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