The effect of CO2 pneumovesicum on upper urinary tract

Abstract Objective Pneumovesicum allows minimal invasive intravesical surgeries. The possible deleterious effect of intravesical CO 2 pressure is not known. We assessed the effect of CO 2 pneumovesicum on the urinary tract and renal function. Methods Pneumovesicum was established and maintained with CO 2 at 10 mm Hg in 10 sows. Cohen cross-trigonal reimplantation was carried out on the left ureter by a vesicoscopic approach. The right ureter was cannulated and served as control. CO 2 pneumovesicum was maintained for 2 hours. Color Doppler measurements of the upper urinary tract and blood sampling were carried out 30 minutes before and 2 hours after establishing pneumovesicum, and 30 minutes after releasing the pneumovesicum. Results Compared with the preoperative values, the bilateral anteroposterior diameters of the renal pelves increased significantly after 2 hours of the pneumovesicum ( P Conclusion CO 2 pneumovesicum at a pressure of 10 mm Hg for 2 hours did not result in any demonstrable deleterious effect.