Hemodynamics Change in Laparoscopic Surgery

Laparoscopic surgery has been widely popularized in clinic for its unique advantages.Under the influence of pneumoperitoneum,position and anesthesia,the hemodynamics in operation changes remarkably.Pneumoperitoneum can induce the rise of PaCO2 level(hypercapnia),and with the increasing of intra-abdominal pressure(IAP),the lung compliance decrease and the obvious hemodynamic change are caused.The extent of the hemodynamic change depends on IAP and basic hemodynamic state.As pneumoperitoneum appears,the mean arterial pressure and peripheral vascular resistance increase,which make for the augment of heart backload,while the variation of heart foreload makes the change of the cardiac output.Here is to review the influence of pneumopertoneum and postion on hemodynamics changes in gynecological laparoscopic surgery and laparoscopic cholecystectomy.