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  • Title: Permanent end-sigmoid colostomy through the extraperitoneal route prevents parastomal hernia after laparoscopic abdominoperineal resection.
    Author: Hamada M, Ozaki K, Muraoka G, Kawakita N, Nishioka Y.
    Journal: Dis Colon Rectum; 2012 Sep; 55(9):963-9. PubMed ID: 22874603.
    Abstract:
    BACKGROUND: The prevalence of a paracolostomy hernia has been reported to be from 10% to 50%, with serious impairment of the quality of life and sometimes life-threatening morbidity in some cases. Most essential in avoiding the need for further treatment of an end-sigmoid colostomy is prevention of a parastomal hernia. OBJECTIVE: We examined the effects of the extraperitoneal route for stoma creation to prevent parastomal hernia after laparoscopic abdominoperineal resection for rectal neoplasms. DESIGN: This is a study of a retrospective cohort. SETTING AND PATIENTS: Data on a total 37 consecutive patients who underwent abdominoperineal resection from March 2005 to December 2010 in Kochi Health Sciences Center were examined retrospectively in this study. Group A included 22 patients whose stoma was created through the extraperitoneal route, and group B included 15 patients whose stoma was created through the transperitoneal route. MAIN OUTCOME MEASURES: The main outcome measures were the rate of parastomal hernia determined through CT and clinical examinations in the 2 groups. RESULTS: In Group A, 1 case was diagnosed as having a parastomal hernia, whereas, in Group B, 5 cases were diagnosed by CT examination as having a parastomal hernia; the difference in incidence between the 2 groups was significant (p = 0.0305). Furthermore, median duration of the follow-up period between the latest CT examination and the primary operation was 722 days in group A, which was significantly longer than that in group B (442 days) (p = 0.001). LIMITATIONS: : This study was limited by its nonrandomized retrospective design. CONCLUSION: Group B developed parastomal hernia more frequently within a significantly shorter period. A permanent sigmoid colostomy created through the extraperitoneal route can prevent the incidence of parastomal hernia after laparoscopic abdominoperineal resection.
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