Although it is important to remember that this study was not a prospective randomized trial and, thus, had from certain biases, we believe that if a tumor is more than 5 cm. and/or the surgeon is not yet skilled in laparoscopic adrenalectomy, the lateral transperitoneal approach is the most suitable method. If the surgeon has performed at least 20 operations, the adrenal tumor is unilateral and the lesion is less than 5 cm., the lateral retroperitoneal approach seems to be more suitable because of its minimally invasive nature. The lateral retroperitoneal approach is also preferred in patients with a history of upper abdominal surgery. With improvements in technique and new instruments the time required for the lateral retroperitoneal approach has been significantly decreased.
Laparoscopic adrenalectomy is a new procedure for the treatment of adrenal tumors. The clinical experience with this operation in 12 patients is reported. While adrenal tumors are relatively small and seem to be good candidates for laparoscopic surgery, this procedure is difficult because of the anatomical location. In our study laparoscopic adrenalectomy appeared to be successful, although massive bleeding occurred in 3 patients. These problems should be overcome as the technique is improved and new laparoscopic instruments are introduced.
The operating time, blood loss, and incidence of complications after laparoscopic adrenalectomy did not differ between the patients with large and small adrenal tumors, indicating that experienced surgeons can safely and effectively use laparoscopy for larger tumors. However, it is necessary to consider carefully whether laparoscopic surgery is indicated for tumors that show infiltration on preoperative imaging or for patients who have undergone previous upper-retroperitoneal surgery.
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