The effect of carbon dioxide pneumoperitoneum on the portal hemodynamics in a portal-hypertensive rat model

As use of laparoscopic surgery grows, various complications with pneumoperi toneum have been reported. However, there are no reports on the relation be tween the carbon dioxide (Co-2) pneumoperitoneum and portal hemodynamics. T he purpose of this study was to determine how the pneumoperitoneum affects the portal hypertensive state. Portal-hypertensive rats, control rats, and sham operation rats were studied. The mean arterial pressure, portal venous pressure, central venous pressure, red blood flow volume of the viscera, a nd liver and renal function were investigated. The findings of this study s uggest that Co-2 pneumoperitoneum at less than 10 mm Hg does not present an y undue risk to the portal hemodynamics in portal-hypertensive rats; howeve r, more attention should be paid to the IAP in PHT patients undergoing surg ery.