Comparative Study of Postoperative Complications in Patients With and Without an Obstruction Who Had Left-Sided Colorectal Cancer and Underwent a Single-Stage Operation After Mechanical Bowel Preparation

Abstract

PURPOSE The purpose of this study is to compare postoperative complications for single-stage surgery after mechanical bowel preparation in patients who experienced obstruction and those who did not. METHODS From 2000 to 2011, 1,224 patients underwent a single-stage operation for left colorectal cancer after bowel preparation. Nonobstruction (NOB) and obstruction (OB) colorectal cancer patients were 1,053 (86.0%) and 171 (14.0%), respectively. Postoperative morbidity and mortality were compared between groups. RESULTS The OB group had poor preoperative conditions (age, white blood cell, hemoglobin, albumin level, and advanced tumor stage) compared with the NOB group (P < 0.05). Mean on-table lavage time for the OB group was 17.5 minutes (range, 14-60 minutes). Mean operation time for the OB group was statistically longer than that of the NOB group (OB: 210 minutes; range, 120-480 minutes vs. NOB: 180 minutes; range, 60-420 minutes; P < 0.001). Overall morbidity was similar between groups (NOB: 19.7% vs. OB: 23.4%, P = 0.259). Major morbidity was more common in the OB group than in the NOB group, but the difference was without significance (OB: 11.7% vs. NOB: 7.6%, P = 0.070). Postoperative death occurred in 16 patients (1.3%), and death in the OB group (n = 7) was significantly higher than it was in the NOB group (n = 9) (4.1% vs. 0.9%, P = 0.001). Twelve patients had surgical complications, which were the leading cause of postoperative death: postoperative bleeding in five patients and leakage in seven patients. CONCLUSION Postoperative morbidity for a single-stage operation for obstructive left colorectal cancer is comparable to that for NOB, regardless of poor conditions of the patient.

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