Title Sevoflurane preconditioning during myocardial ischemia-reperfusion reduces infarct size and preserves autonomic control of circulation in rats.
Author Pasqualin, Rubens Campana; Mostarda, Cristiano Teixeira; Souza, Leandro Ezequiel de; Vane, Matheus Fachini; Sirvente, Raquel; Otsuki, Denise Aya; Torres, Marcelo Luis Abramides; Irigoyen, Maria Claudia Costa; Auler, Jose Otavio Costa Jr
Journal Acta Cir Bras Publication Year/Month 2016-May
PMID 27275856 PMCID -N/A-
Affiliation + expend 1.PhD, Faculdade de Medicina, Universidade de Sao Paulo (USP), Brazil. Conception and design of the study, analysis of data, manuscript writing., Universidade de Sao Paulo, Faculdade de Medicina, Universidade de Sao Paulo (USP), Brazil.

PURPOSE: To investigate the myocardial ischemia-reperfusion with sevoflurane anesthetic preconditioning (APC) would present beneficial effects on autonomic and cardiac function indexes after the acute phase of a myocardial ischemia-reperfusion. METHODS: Twenty Wistar rats were allocated in three groups: control (CON, n=10), myocardial infarction with sevoflurane (SEV, n=5) and infarcted without sevoflurane (INF, n=5). Myocardial ischemia (60 min) and reperfusion were performed by temporary coronary occlusion. Twenty-one days later, the systolic and diastolic function were evaluated by echocardiography; spectral analysis of the systolic arterial pressure (SAPV) and heart rate variability (HRV) were assessed. After the recording period, the infarct size (IS) was evaluated. RESULTS: The INF group presented greater cardiac dysfunction and increased sympathetic modulation of the SAPV, as well as decreased alpha index and worse vagal modulation of the HRV. The SEV group exhibited attenuation of the systolic and diastolic dysfunction and preserved vagal modulation (square root of the mean squared differences of successive R-R intervals and high frequency) of HRV, as well as a smaller IS. CONCLUSION: Sevoflurane preconditioning better preserved the cardiac function and autonomic modulation of the heart in post-acute myocardial infarction period.

  • Copyright © 2023
    National Institute of Pathogen Biology, CAMS & PUMC, Bejing, China
    All rights reserved.