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 23 February 2018

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News

Circumferential resection margin involvement after rectal cancer

Circumferential resection margin involvement is more common in lymph-node-positive tumors, shows this month's Diseases of the Colon & Rectum.

News image

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Dr Henry Tilney and colleagues from England assessed factors affecting rates of circumferential resection margin involvement after rectal cancer excision.

The research team evaluated an association between circumferential resection margin involvement rates for patients undergoing anterior resection.

In addition, the team assessed abdominoperineal excision within the same unit, and trends in outcomes between units.

Data about patients undergoing rectal cancer excision between 2000 and 2003 were extracted from the Association of Coloproctology of Great Britain database.

Multivariate logistic regression analysis was used to identify independent predictors of circumferential resection margin involvement.

Pearson correlation coefficient was used to evaluate the association between circumferential resection margin involvement for anterior resection and abdominoperineal excision.

Resection margin involvement rate for anterior resection was 7%
Diseases of the Colon & Rectum

The researchers reported that a total of 1430 patients satisfied the inclusion criteria.

The circumferential resection margin involvement rate for anterior resection measured in 794 patients was 7%.

Between hospital variability was 0% to 40%.

The team found that circumferential resection margin involvement rate for anterior resection for abdominoperineal excision in 521 patients was 17%.

The researchers observed that between hospital variability 0% to 100%.

Independent predictors of circumferential resection margin involvement were T stage, nodal involvement, and operative procedure.

Units with a high circumferential resection margin involvement rate for anterior resection had a high resection margin for abdominoperineal excision.

Dr Tilney's team concludes, “Circumferential resection margin involvement is more common in lymph-node-positive tumors and is more common after abdominoperineal excision compared with anterior resection.”

“This relationship was consistent across units irrespective of their individual circumferential resection margin involvement rates.”

Dis Col Rectum 2007: 50(1): 29-36
25 January 2007

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