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We described the clinical results and efficacy of laparoscopic pelvic lymphadenectomy for localized prostate cancer. This procedure was followed by radical prostatectomy, if metastasis was not found in frozen section. In the presence of positive nodes, optional treatment, such as TUR or castration, other than radical prostatectomy was performed. We performed laparoscopic lymphadenectomy on twenty seven patients between April 1992 and September 1993. They range from 52 to 78 years in age and consist of 4 patients with stage A2, 17 with stage B, and 6 with stage C. We dissected the obturator lymph nodes on bilateral sides. The average operating time was 162 minutes (range 86 to 320 minutes). The average number of nodes removed from the right side was 7.1 +/- 5.9 and 6.1 +/- 4.5 from the left side, which was comparable to the number of lymph nodes obtained by open dissection. Colon injury occurred in one patient, which was managed by laparotomy procedure. Nodal metastases were found in 6 patients by frozen section, and in 10 patients by permanent section. This discrepancy suggested that two-staged operation might be preferable for the localized prostate cancer. Six patients were given suitable therapies besides radical prostatectomy. Laparoscopic pelvic lymphadenectomy is a safe and useful procedure for prostate cancer, especially for the patients who are likely to have nodal metastasis.
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