Distal Margin Shrinkage Factor – A Consideration Before Dividing the Specimen in Colorectal Cancer Surgery

Background - The risk of local recurrence in colorectal cancer has been associated with the length of clear distal margin in the specimen taken during original resection. It has been reported that there is significant specimen shrinkage after fixation in formalin. This study is aimed to quantify thi...

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Autores principales: Yiu Ho, Jai Hoff, Andrew May, Clay Renwick
Formato: article
Lenguaje:EN
Publicado: Shiraz University of Medical Sciences 2020
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spelling oai:doaj.org-article:b3a18209e4054a40b91baa289c8cbc512021-11-14T08:12:11ZDistal Margin Shrinkage Factor – A Consideration Before Dividing the Specimen in Colorectal Cancer Surgery2783-243010.30476/acrr.2020.46702https://doaj.org/article/b3a18209e4054a40b91baa289c8cbc512020-06-01T00:00:00Zhttps://colorectalresearch.sums.ac.ir/article_46702_81428cf1d3091800242ae67b55e5ec5d.pdfhttps://doaj.org/toc/2783-2430Background - The risk of local recurrence in colorectal cancer has been associated with the length of clear distal margin in the specimen taken during original resection. It has been reported that there is significant specimen shrinkage after fixation in formalin. This study is aimed to quantify this degree of shrinkage and to investigate the factors for specimen shrinkage. Methods – This research was a single centre prospective study. All adult patients who underwent colorectal surgery for cancer had demographics, surgical details and cancer staging and pathology recorded. Colonic specimens were measured immediately post resection including the total length, the mesenteric length and the distal length from the palpable tumour. Multiple logistic linear regression was applied to identify factors associated with distal margin shrinkage. Results – Right-sided colectomy specimens had an inconsistent degree of shrinkage. Left-sided colectomy specimens showed an average shrinkage of 20% (CI 4% – 36%). The only other factor observed that had statistically significant association on the shrinkage of distal margins in specimens was increasing tumour size. Conclusions - Specimens resected during anterior resection for colorectal cancer have a consistent level of shrinkage. Locally advanced tumours were observed to have an association with specimen distal margin shrinkage, however the mechanism is unclear. This new evidence can assist intra-operative decision making to allow adequate distal margin resection.Yiu HoJai HoffAndrew MayClay RenwickShiraz University of Medical Sciencesarticlecolorectal neoplasmcolorectal surgeryformalinmargins of excisionMedicineRENIranian Journal of Colorectal Research, Vol 8, Iss 2, Pp 75-78 (2020)
institution DOAJ
collection DOAJ
language EN
topic colorectal neoplasm
colorectal surgery
formalin
margins of excision
Medicine
R
spellingShingle colorectal neoplasm
colorectal surgery
formalin
margins of excision
Medicine
R
Yiu Ho
Jai Hoff
Andrew May
Clay Renwick
Distal Margin Shrinkage Factor – A Consideration Before Dividing the Specimen in Colorectal Cancer Surgery
description Background - The risk of local recurrence in colorectal cancer has been associated with the length of clear distal margin in the specimen taken during original resection. It has been reported that there is significant specimen shrinkage after fixation in formalin. This study is aimed to quantify this degree of shrinkage and to investigate the factors for specimen shrinkage. Methods – This research was a single centre prospective study. All adult patients who underwent colorectal surgery for cancer had demographics, surgical details and cancer staging and pathology recorded. Colonic specimens were measured immediately post resection including the total length, the mesenteric length and the distal length from the palpable tumour. Multiple logistic linear regression was applied to identify factors associated with distal margin shrinkage. Results – Right-sided colectomy specimens had an inconsistent degree of shrinkage. Left-sided colectomy specimens showed an average shrinkage of 20% (CI 4% – 36%). The only other factor observed that had statistically significant association on the shrinkage of distal margins in specimens was increasing tumour size. Conclusions - Specimens resected during anterior resection for colorectal cancer have a consistent level of shrinkage. Locally advanced tumours were observed to have an association with specimen distal margin shrinkage, however the mechanism is unclear. This new evidence can assist intra-operative decision making to allow adequate distal margin resection.
format article
author Yiu Ho
Jai Hoff
Andrew May
Clay Renwick
author_facet Yiu Ho
Jai Hoff
Andrew May
Clay Renwick
author_sort Yiu Ho
title Distal Margin Shrinkage Factor – A Consideration Before Dividing the Specimen in Colorectal Cancer Surgery
title_short Distal Margin Shrinkage Factor – A Consideration Before Dividing the Specimen in Colorectal Cancer Surgery
title_full Distal Margin Shrinkage Factor – A Consideration Before Dividing the Specimen in Colorectal Cancer Surgery
title_fullStr Distal Margin Shrinkage Factor – A Consideration Before Dividing the Specimen in Colorectal Cancer Surgery
title_full_unstemmed Distal Margin Shrinkage Factor – A Consideration Before Dividing the Specimen in Colorectal Cancer Surgery
title_sort distal margin shrinkage factor – a consideration before dividing the specimen in colorectal cancer surgery
publisher Shiraz University of Medical Sciences
publishDate 2020
url https://doaj.org/article/b3a18209e4054a40b91baa289c8cbc51
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AT jaihoff distalmarginshrinkagefactoraconsiderationbeforedividingthespecimenincolorectalcancersurgery
AT andrewmay distalmarginshrinkagefactoraconsiderationbeforedividingthespecimenincolorectalcancersurgery
AT clayrenwick distalmarginshrinkagefactoraconsiderationbeforedividingthespecimenincolorectalcancersurgery
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