B P Jacob1, B Salky. 1. Department of Laparoscopic Surgery, Mount Sinai School of Medicine, 5 East 98th Street, New York, NY 10029, USA.
Abstract
BACKGROUND: Laparoscopic colectomy for the management of colon cancer remains a controversial therapeutic option, especially when the outcomes are compared with the historically accepted survival data and recurrence rates after open surgery. The purpose of this study was to evaluate the 5-year overall and disease-free survival rates after laparoscopic colon resection for invasive colon adenocarcinoma. METHODS: A total of 129 patients underwent consecutive laparoscopic colectomies for colon adenocarcinoma (between April 1992 and 2004 January) by a single surgeon at a single institution. Records were analyzed retrospectively and follow-up data was obtained. The Student t-test, Cox regression analysis, and Kaplan-Meier survival data were used for statistical analysis. RESULTS: After patients with noninvasive disease on final pathology were excluded, the study population comprised 88 patients who underwent laparoscopic colectomies for invasive colon cancer with > 2 years of follow-up. Of these cases, 81 (93%) were amenable for complete follow-up at 11years (41 women and 40 men; mean age, 76 years). Mean follow-up was 61 months. There was one perioperative death (1.2%), and the overall postoperative morbidity rate was 13.6%. The average number of lymph nodes harvested was 10.1 (+/-6). There were no port site recurrences. The Kaplan-Meier survival data were as follows for 5-year overall survival and 5-year disease-free survival, respectively stage I (n = 34) 89% and 89%; stage II (n = 22), 65% and 59%; stage III (n = 19), 72% and 67%; stages I-III combined, (n = 75), 77% and 73%. CONCLUSIONS: For this specific cohort of patients undergoing curative laparoscopic colectomies for invasive colon adenocarcinoma, the mean follow-up was > 5 years. Overall survival and disease-free survival for stage I, II, and III colon cancer as well as for stages I-III combined are favorable and comparable to historically acceptable open colectomy survival rates. Overall survival and disease-free survival after laparoscopic colectomy for invasive colon cancer is no worse, and perhaps better than, the previously reported rates for the same procedure done by an open technique.
BACKGROUND: Laparoscopic colectomy for the management of colon cancer remains a controversial therapeutic option, especially when the outcomes are compared with the historically accepted survival data and recurrence rates after open surgery. The purpose of this study was to evaluate the 5-year overall and disease-free survival rates after laparoscopic colon resection for invasive colon adenocarcinoma. METHODS: A total of 129 patients underwent consecutive laparoscopic colectomies for colon adenocarcinoma (between April 1992 and 2004 January) by a single surgeon at a single institution. Records were analyzed retrospectively and follow-up data was obtained. The Student t-test, Cox regression analysis, and Kaplan-Meier survival data were used for statistical analysis. RESULTS: After patients with noninvasive disease on final pathology were excluded, the study population comprised 88 patients who underwent laparoscopic colectomies for invasive colon cancer with > 2 years of follow-up. Of these cases, 81 (93%) were amenable for complete follow-up at 11years (41 women and 40 men; mean age, 76 years). Mean follow-up was 61 months. There was one perioperative death (1.2%), and the overall postoperative morbidity rate was 13.6%. The average number of lymph nodes harvested was 10.1 (+/-6). There were no port site recurrences. The Kaplan-Meier survival data were as follows for 5-year overall survival and 5-year disease-free survival, respectively stage I (n = 34) 89% and 89%; stage II (n = 22), 65% and 59%; stage III (n = 19), 72% and 67%; stages I-III combined, (n = 75), 77% and 73%. CONCLUSIONS: For this specific cohort of patients undergoing curative laparoscopic colectomies for invasive colon adenocarcinoma, the mean follow-up was > 5 years. Overall survival and disease-free survival for stage I, II, and III colon cancer as well as for stages I-III combined are favorable and comparable to historically acceptable open colectomy survival rates. Overall survival and disease-free survival after laparoscopic colectomy for invasive colon cancer is no worse, and perhaps better than, the previously reported rates for the same procedure done by an open technique.
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