COST-BENEFIT-ANALYSIS OF LAPAROSCOPIC VERSUS LAPAROTOMY SALPINGO-OOPHORECTOMY FOR BENIGN TUBOOVARIAN DISEASE

Study Objective. To compare laparoscopy and laparotomy adnexectomy with respect to operating time, complications, length of hospitalization, convalescence, effectiveness, and surgical and equipment cost. Design. A comparison of 30 consecutive patients undergoing laparoscopic adnexectomy from January 1990 to July 1991, and 27 consecutive patients who underwent adnexectomy by laparotomy from January 1985 to December 1990. Setting. Private practice of one surgeon (GAV), and the Department of Obstetrics and Gynecology, Lawson Research institute, St. Joseph's Health Care Center, London, Ontario, Canada. Patients. All patients had had a hysterectomy with preservation of at least one adnexa. The indications for adnexectomy were chronic pelvic pain or adnexal mass less than 6 cm diameter, with benign characteristics defined by sonography and tumor markers. Interventions. Laparoscopic adnexectomy was performed by three-puncture technique with bipolar coagulation and endoloop ligation of the pedicle. Dissection and resection were performed with the carbon dioxide laser or scissors. Results. Differences were noted between laparoscopy and laparotomy (mean +/- SD) in operating time (90 +/- 40 vs 65 + 20 min, p < 0.01), complications (11% vs 18.5%, p < 0.05), effectiveness (72% vs 72%), length of hospitalization (1.7 +/- 7.0 vs 7.1 +/- 1.2 days, p < 0.05), convalescence (2.2 +/- 1.7 vs 9.5 +/- 5.2 wks, p < 0.05), surgical cost ($1603 vs $5158), and equipment cost ($198,048 vs $17,345). Conclusions. Operating time, complications, safety, efficiency, and effectiveness were comparable for the two procedures. Markedly reduced hospitalization in the laparoscopy group resulted in a mean saving per patient of $3555. These women also had shorter convalescence and earlier return to normal activities and employment. The cost of laparoscopic equipment appears prohibitive, but it pays for itself after 50 surgical procedures.