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Risk Factors of Early Postoperative Small Bowel Obstruction Following a Proctectomy for Rectal Cancer

대한대장항문학회지 2011년 27권 6호 p.315 ~ 321
 ( Shin Jin-Yong ) - Inje University College of Medicine Department of Surgery


Purpose: Postoperative small bowel obstruction is a common and serious complication following a proctectomy, and early postoperative small bowel obstruction (EPSBO) leads to longer hospital stays, delays chemotherapy in advanced cases, and may be a contributor to mortality. The goal of this study is to identify the risk factors of EPSBO after a proctectomy for rectal cancer, thereby seeking to reduce the incidence of EPSBO.

Methods: Patients (735) who underwent a proctectomy for rectal cancer between March 2005 and February 2010 were entered into this study, and data were collected prospectively. Patients were judged to have EPSBO if, within the first 30 days, they presented symptoms such as nausea, vomiting and abdominal distention lasting for 2 days, and radiologic finding of small bowel obstruction after evidence of return of small bowel motility. The association between EPSBO and patients and surgery-related variables were studied by using univariate and multivariate analyses.

Results: EPSBO developed in 47 cases (6.4%) and was the most frequently occurring complication in the early perioperative period following a proctectomy. The frequency of EPSBO according to operative variables shows that EPSBO developed in 3.0% of the patients who underwent laparoscopic surgery (LS) compared with 8.4% of the patients who underwent open surgery (OS) (P = 0.004). OS (odds ratio [OR], 2.5) and a previous laparotomy (OR, 2.3) were independent risk factors for the development of EPSBO after a proctectomy for rectal cancer.

Conclusion: EPSBO is more likely to occur in patients who undergo OS or who have had a previous laparotomy. LS may be considered as a surgical procedure that can reduce the risk of EPSBO in patients undergoing a proctectomy for rectal cancer.


Small bowel obstruction; Rectal neoplasms; Laparoscopy
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