Short‐term results of laparoscopic surgery after preoperative chemoradiation for clinically staged T3 and T4 rectal cancer

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Abstract
Introduction: The feasibility of laparoscopic surgery for clinically staged T3 and T4 rectal cancer has not been clearly defined specifically in cases following preoperative chemoradiation therapy (CRT). Our aim was to investigate the feasibility of laparoscopic surgery after preoperative CRT for clinically staged T3 and T4 rectal cancer. Methods: Between May 2003 and June 2009, 57 patients (T3: n = 50, T4: n = 7) who underwent preoperative CRT for rectal cancer were identified. Forty-three patients with laparoscopic surgery (Lap group) were compared with 14 patients who underwent open surgery (Open group). Perioperative data including postoperative morbidity were assessed between the two groups. Results: All patients underwent complete laparoscopic operations, and none was converted to laparotomy. Operating time was longer in the Open group (331 vs 375 min, P < 0.01). Blood loss was lower in the Lap group (160 vs 316 mL, P < 0.01). Lymph node harvest and morbidity rate were similar in both groups. The distal tumor margin was negative in all patients. No patients had perioperative mortality associated with surgery after CRT. Conclusion: Laparoscopic surgery after preoperative CRT is a feasible and a safe option for T3 and T4 rectal cancer compared to conventional open surgery.

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