Postoperative Myocardial Injury in Middle-Aged and Elderly Patients Following Curative Resection of Esophageal Cancer With Aggressive or Standard Body Temperature Management: A Randomized Controlled Trial

BACKGROUND: Risk of intraoperative hypothermia is relatively high in middle-aged and elderly patients undergoing curative resection of esophageal cancer, which may cause myocardial ischemia during the early postoperative period. The objective of this study was to compare aggressive or standard body temperature management for lowering the incidence of postoperative myocardial injury that was assessed by troponin levels collected at a priori defined set times in these patients. METHODS: Seventy patients undergoing elective curative resection of esophageal cancer were randomly assigned to undergo aggressive body temperature management (nasopharyngeal temperature ≥36°C) or standard body temperature management (n = 35 in each arm). The primary outcome was myocardial injury, defined as the occurrence of elevated troponin I (>0.06 µg/L) or elevated high-sensitivity troponin T (≥0.065, or 0.02 µg/L≤ high-sensitivity troponin T

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