Comparison of clinical outcomes of laparoscopic and conventional open adrenalectomy.

From September 1992 to November 1996, 28 patients underwent laparoscopic adrenalectomy at Osaka University Medical Hospital. They were compared with 25 instances of conventional open surgery performed between May 1990 and April 1996 at the same institution. Laparoscopic adrenalectomy was performed via either a transperitoneal or a retroperitoneal approach. The mean operative time of 375 minutes for laparoscopic adrenalectomy was significantly longer than that of 133 minutes for open surgery. The average hospital stay for laparoscopic surgery was significantly shorter than that of conventional open adrenalectomy. The convalescent period was also significantly shorter in the patients who had laparoscopic adrenalectomy. There was no statistical difference in blood loss during the operation or the number of doses of analgesics administered after operation in the two groups. We conclude that laparoscopic adrenalectomy is one of the options to be selected in surgically managing adrenal tumors. Laparoscopic adrenalectomy could become a standard operative procedure as instruments and techniques of laparoscopy improve significantly.