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Randomized clinical trial of high versus low inferior mesenteric artery ligation during anterior resection for rectal cancer

BACKGROUND: The optimal level for inferior mesenteric artery ligation during anterior resection for rectal cancer is controversial. The aim of this randomized trial was to clarify whether the inferior mesenteric artery should be tied at the origin (high tie) or distal to the left colic artery (low t...

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Autores principales: Fujii, S., Ishibe, A., Ota, M., Watanabe, K., Watanabe, J., Kunisaki, C., Endo, I.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley & Sons, Ltd 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6069351/
https://www.ncbi.nlm.nih.gov/pubmed/30079388
http://dx.doi.org/10.1002/bjs5.71
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author Fujii, S.
Ishibe, A.
Ota, M.
Watanabe, K.
Watanabe, J.
Kunisaki, C.
Endo, I.
author_facet Fujii, S.
Ishibe, A.
Ota, M.
Watanabe, K.
Watanabe, J.
Kunisaki, C.
Endo, I.
author_sort Fujii, S.
collection PubMed
description BACKGROUND: The optimal level for inferior mesenteric artery ligation during anterior resection for rectal cancer is controversial. The aim of this randomized trial was to clarify whether the inferior mesenteric artery should be tied at the origin (high tie) or distal to the left colic artery (low tie). METHODS: Patients were allocated randomly to undergo either high‐ or low‐tie ligation and were stratified by surgical approach (open or laparoscopic). The primary outcome was the incidence of anastomotic leakage. Secondary outcomes were duration of surgery, blood loss and 5‐year overall survival. RESULTS: Some 331 patients entered the trial between June 2006 and September 2012. The trial was stopped prematurely as recruitment was slow. Seven patients were excluded after randomization but before operation because of procedural changes. High tie and low tie were performed in 164 and 160 patients respectively. The incidence of anastomotic leakage was not significantly different (17·7 versus 16·3 per cent respectively; P = 0·731). The incidence of severe complications requiring intervention was 2·4 versus 5·0 per cent for high and low tie respectively (P = 0·222). In multivariable analysis, risk factors for anastomotic leakage included male sex (odds ratio 4·36, 95 per cent c.i. 1·56 to 12·18) and distance of the tumour from the anal verge (odds ratio 0·99, 0·98 to 1·00). At 5 years there were no significant differences in overall (87·2 versus 89·4 per cent respectively; P = 0·386) and disease‐free (76·3 versus 77·6 per cent; P = 0·765) survival. CONCLUSION: The level of ligation of the inferior mesenteric artery does not significantly influence the rate of anastomotic leakage. Registration number: NCT01861678 ( https://clinicaltrials.gov).
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spelling pubmed-60693512018-08-03 Randomized clinical trial of high versus low inferior mesenteric artery ligation during anterior resection for rectal cancer Fujii, S. Ishibe, A. Ota, M. Watanabe, K. Watanabe, J. Kunisaki, C. Endo, I. BJS Open Randomized Clinical Trial BACKGROUND: The optimal level for inferior mesenteric artery ligation during anterior resection for rectal cancer is controversial. The aim of this randomized trial was to clarify whether the inferior mesenteric artery should be tied at the origin (high tie) or distal to the left colic artery (low tie). METHODS: Patients were allocated randomly to undergo either high‐ or low‐tie ligation and were stratified by surgical approach (open or laparoscopic). The primary outcome was the incidence of anastomotic leakage. Secondary outcomes were duration of surgery, blood loss and 5‐year overall survival. RESULTS: Some 331 patients entered the trial between June 2006 and September 2012. The trial was stopped prematurely as recruitment was slow. Seven patients were excluded after randomization but before operation because of procedural changes. High tie and low tie were performed in 164 and 160 patients respectively. The incidence of anastomotic leakage was not significantly different (17·7 versus 16·3 per cent respectively; P = 0·731). The incidence of severe complications requiring intervention was 2·4 versus 5·0 per cent for high and low tie respectively (P = 0·222). In multivariable analysis, risk factors for anastomotic leakage included male sex (odds ratio 4·36, 95 per cent c.i. 1·56 to 12·18) and distance of the tumour from the anal verge (odds ratio 0·99, 0·98 to 1·00). At 5 years there were no significant differences in overall (87·2 versus 89·4 per cent respectively; P = 0·386) and disease‐free (76·3 versus 77·6 per cent; P = 0·765) survival. CONCLUSION: The level of ligation of the inferior mesenteric artery does not significantly influence the rate of anastomotic leakage. Registration number: NCT01861678 ( https://clinicaltrials.gov). John Wiley & Sons, Ltd 2018-06-08 /pmc/articles/PMC6069351/ /pubmed/30079388 http://dx.doi.org/10.1002/bjs5.71 Text en © 2018 The Authors. BJS Open published by John Wiley & Sons Ltd on behalf of BJS Society Ltd This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Randomized Clinical Trial
Fujii, S.
Ishibe, A.
Ota, M.
Watanabe, K.
Watanabe, J.
Kunisaki, C.
Endo, I.
Randomized clinical trial of high versus low inferior mesenteric artery ligation during anterior resection for rectal cancer
title Randomized clinical trial of high versus low inferior mesenteric artery ligation during anterior resection for rectal cancer
title_full Randomized clinical trial of high versus low inferior mesenteric artery ligation during anterior resection for rectal cancer
title_fullStr Randomized clinical trial of high versus low inferior mesenteric artery ligation during anterior resection for rectal cancer
title_full_unstemmed Randomized clinical trial of high versus low inferior mesenteric artery ligation during anterior resection for rectal cancer
title_short Randomized clinical trial of high versus low inferior mesenteric artery ligation during anterior resection for rectal cancer
title_sort randomized clinical trial of high versus low inferior mesenteric artery ligation during anterior resection for rectal cancer
topic Randomized Clinical Trial
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6069351/
https://www.ncbi.nlm.nih.gov/pubmed/30079388
http://dx.doi.org/10.1002/bjs5.71
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