Evaluation of the Safety and Effectiveness of Pringle Method Combined With IVC Flow Limiting and Blocking Method in Laparoscopic Hepatectomy Based on Non-restrictive Fluid Therapy Strategy

"The specific steps of IVC blocking were performed by the principal physician under laparoscopic operation: slightly incision of the posterior peritoneum on both sides of the inferior vena cava above the level of the renal vein. The blood vessel blocking band is passed behind the inferior vena cava on the left or right side of the inferior vena cava. According to the intraoperative situation, the blocking band (flow limiting blocking/incomplete blocking of subhepatic inferior vena cava) was tightened to control the bleeding from hepatic vein on the liver section. Patients in this group did not use vasoactive drugs/underuse means to control CVP, so they need to strictly communicate with the anesthesiologist, and take the fluid intake based on the physiological requirements and fluid loss of individual patients (cancel the restriction of fluid intake)."