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Comparison of long-term follow up of laparoscopic versus open colectomy for transverse colon cancer.
Clinical Outcomes of Surgical Therapy (COST) was a landmark study demonstrating that laparoscopic-assisted colectomy had oncologic outcomes similar to those of open colectomy for colon cancer, but transverse colon cancers (TCCs) were excluded from that study. Oncologic results of a laparoscopic resection for TCC are unknown. This single-institution retrospective 3:1 case-matched review examined patients treated for TCC from January 1, 1996, to April 15, 2009. Laparoscopic colectomy (LC) and open colectomy (OC; extended right, extended left, and total abdominal) cases completed for Stage I to III adenocarcinoma of the transverse colon (hepatic flexure, transverse colon, and splenic flexure) were analyzed. Patients were matched for age, tumor location, and stage. Primary endpoints were overall survival and disease-free survival. Secondary endpoints were length of stay and pathologic parameters. One hundred and twenty-three OC cases were matched with 41 LC cases. There were four conversions (9.7%) in the LC group. Length of stay was reduced by 28% in the LC group (P = 0.02). Complication rate and severity were similar between the two groups (29% vs 24%; P = 0.68). Lymph node harvest was higher in the LC group than in the OC group (23.3 vs 18.6; P = 0.03). All pathologic margins were clear, and no local recurrence was found in either group. Five-year overall survival (61% vs 59%; P = 0.39) and disease-free survival (88% vs 82%; P = 0.23) were similar in the two groups. Short-term recovery was faster and lymph node harvest was improved in the LC group. Thus, laparoscopic management of TCC is a safe and feasible procedure.
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