Impact Of Body Mass Index On Radical Prostatectomy Medical College Of Zhe-jiang University Surgry(Urology)

Objective:To investigate the effect of body mass index (BMI) on Laparoscopy and the open radical prostatectomy.Methods:Applied with a retrospective analysis of226cases of radical prostatectomy patients from2012January to2013May.106patients underwent laparoscopic surgery,aged66.5±0.7y, height167.7±0.5cm,weight66.8±0.9kg;120patients underwent open surgery,aged65.8±0.7y,height168.1±0.5cm,weight66.5±0.8kg.With each group being labeled as non-obese group (BMI<25kg/m2) and obese group (BMI>25kg/m2). The items for comparison between non-obese group and obese group by surgical methods were the preoperative serum PSA level, the operation time, the bleeding volume during operation for patients, the preoperation and postoperation hemoglobin difference, Gleason score, and the postoperation indwelling catheter time. In the laparoscopic group among the total106cases with one sub-group of76cases of non-obese patients (71.7%) and the other sub-group of30cases of obesity (28.3%), the two sub-groups showed no statistical difference in PSA values and age before operations; In the open operation group of120cases,84cases were non-obese patients (70.0%), and36cases were obesity (30.0%). These two sub-groups showed no statistical difference in preoperative PSA values and age.Results:In the laparoscopic group,during the operation time(non-obese169.4±37.8min,obese188.5±42.3min), the two sub-groups showed significant difference in the blood Hb level(non-obese-22.8±11.0g/L,obese-30.9±15.9g/L) and the volume of bleeding(non-obese115.9±68.9ml,obese178.3±126.4ml) during the operation (P<0.05); And the two sub-groups showed no statistical difference in postoperative indwelling catheter time and Gleason score (P>0.05).In the open group,the intraoperative hemorrhage volume(non-obese413.7±289.4ml,obese594.4±534.9ml) and the difference between the hemoglobin before and after operation(non-obese-27.2±13.3g/L,obese-34.9±15.8g/L) had significant difference (P <0.05); And the two sub-groups showed no significant difference in the preoperative hemoglobin, postoperative indwelling catheter time, Gleason score and operation time (P>0.05).Conclusions:To conduct the treatment operations to those obese patients of prostatectomy, both in the laparoscopic and open operations the blood loss was more than those who were non-obese patients, and the operation time underwent much longer in obese patients than those who were non-obese patients during the laparoscopic radical prostatectomy.