Lung Ultrasound-Guided Intraoperative Fluid Management Strategies

"Regimens of different intraoperative fluid management The restrictive fluid group (RG) aims to achieve a net zero fluid balance and involves a 2 mL/kg bolus at anesthesia induction, followed by an intraoperative crystalloid infusion at a rate of 4 mL/kg/hr.~The other group of patients, the liberal group (LG), will receive a 10 ml/kg bolus at anesthesia induction,followed by an intraoperative crystalloid infusion at a rate of 8 ml/kg/hr."