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Long-Term Functional Outcomes of Total Mesorectal Excision Following Chemoradiotherapy for Lower Rectal Cancer: Stapled Anastomosis versus Intersphincteric Resection



Long-Term Functional Outcomes of Total Mesorectal Excision Following Chemoradiotherapy for Lower Rectal Cancer: Stapled Anastomosis versus Intersphincteric Resection



Digestive Surgery 33(1): 33-42



To compare the long-term functional outcomes of total mesorectal excision following chemoradiotherapy for lower rectal cancer between stapled anastomosis and intersphincteric resection (ISR). A total of 105 of 170 sphincter-preserving patients found to be disease-free and anal functional patients were assessed at 6.5 years (range 2.4-13.0 years) of follow-up after surgery. Of these subjects, 87 (double stapling technique [DST]: 41; ISR: 46) of the 105 patients (82.9%) responded to the questionnaire on the low anterior resection syndrome score (LARS score). The total LARS scores in the DST and ISR groups were not significantly different (Major/Minor/No LARS = 23/14/4 and 31/10/5, p = 0.431). When considering each item of the LARS, ISR was associated with poorer incontinence scores than DST. Conversely, the scores for the frequency of bowel movement, clustering and urgency were not different between the 2 groups. In addition, in the multivariate analysis, the tumor distance from the anal verge and postoperative period was independently associated with Major LARS. In this study, we demonstrate the long-term functional outcomes of irradiated lower rectal cancer reconstructed with DST and ISR. Bowel function improves over time; therefore, long-term patient follow-up is important.

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Accession: 058231230

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PMID: 26569467

DOI: 10.1159/000441571


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