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BRITISH JOURNAL OF SURGERY
卷 107, 期 1, 页码 131-139出版社
OXFORD UNIV PRESS
DOI: 10.1002/bjs.11324
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Background Neoadjuvant chemoradiotherapy (nCRT) for locally advanced rectal cancer may induce a pathological complete response (pCR) but increase surgical morbidity due to radiation-induced fibrosis. In this study the association between pCR and postoperative surgical morbidity was investigated. Methods Patients in the Netherlands with rectal cancer who underwent nCRT followed by total mesorectal excision between 2009 and 2017 were included. Data were stratified into patients who underwent resection with creation of a primary anastomosis and those who had a permanent stoma procedure. The association between pCR and postoperative morbidity was investigated in univariable and multivariable logistic regression analyses. Results pCR was observed in 976 (12 center dot 2 per cent) of 8003 patients. In 3472 patients who had a primary anastomosis, the presence of pCR was significantly associated with surgical complications (122 of 443 (27 center dot 5 per cent) versus 598 of 3029 (19 center dot 7 per cent) in those without pCR) and anastomotic leak (35 of 443 (7 center dot 9 per cent) versus 173 of 3029 (5 center dot 7 per cent) respectively). Multivariable analysis also showed associations between pCR and surgical complications (adjusted odds ratio (OR) 1 center dot 53, 95 per cent c.i. 1 center dot 22 to 1 center dot 92) and pCR and anastomotic leak (adjusted OR 1 center dot 41, 1 center dot 03 to 2 center dot 05). Of 4531 patients with a permanent stoma, surgical complications were observed in 120 (22 center dot 5 per cent) of 533 patients with a pCR, compared with 798 (20 center dot 0 per cent) of 3998 patients with no pCR (adjusted OR 1 center dot 17, 0 center dot 94 to 1 center dot 46). Conclusion Patients with a pCR in whom an anastomosis was created were at increased risk of developing an anastomotic leak.
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