Effect of intravenous injection of Vitamin C on postoperative pulmonary complications in patients undergoing cardiac surgery

This is a double-blind, randomized trial study.This study observed the effect of intravenous vitamin C during surgery on the incidence of postoperative pulmonary complications(PPC) in patients undergoing cardiopulmonary bypass and cardiac surgery, and evaluated its protective effect on the lungs, providing a reference for clinical medication.本研究为一项双盲随机对照试验。本研究考察了术中静脉输注维生素C对接受体外循环（cardiopulmonary bypass）及心脏手术患者术后肺部并发症（postoperative pulmonary complications, PPC）发生率的影响，并评估了其肺部保护作用，可为临床用药提供参考。