Effect of intraoperative temperature management on postoperative myocardial injury in patients with colorectal tumors

Interventions: aggressively warmed group:Core body temperature was maintained at 37 to 37.5 ° C;actively warmed group:Core body temperature was maintained at 36 to 36.5 ° C;routine thermal management group:Core body temperature was maintained at least 35 ° C
Primary outcome(s): troponin I;core body temperature
Study Design: Parallel

干预措施：强化升温组（aggressively warmed group）：核心体温维持于37~37.5℃；主动升温组（actively warmed group）：核心体温维持于36~36.5℃；常规体温管理组（routine thermal management group）：核心体温至少维持35℃。主要结局指标：肌钙蛋白I（troponin I）、核心体温。研究设计：平行设计。