Clinicopathological factors associated with positive circumferential margins in rectal cancers

Autor: Lachlan B. Pasch, Walid Barto, Toufic El Khoury, Krishna Kotecha, James A. Pasch, Chatika Premaratne, Ewan MacDermid, Kar Yin Fok
Rok vydání: 2019
Předmět:
Zdroj: ANZ Journal of Surgery. 89:1636-1641
ISSN: 1445-2197
1445-1433
DOI: 10.1111/ans.15418
Popis: BACKGROUND Positive circumferential resections are associated with local disease recurrence and reduced survival in rectal cancer. We studied a cohort of consecutive rectal cancer resections to assess for clinicopathological differences and survival in patients with positive and negative circumferential margins. METHODS Rectal cancers were identified from a retrospective histopathology database of colorectal resections performed at five western Sydney hospitals from 2010 to 2016. Univariate and multivariate analysis with binary logistic regression were performed on histopathology data matched with survival times from the New South Wales Registry of Births Deaths and Marriages. RESULTS A total of 502 rectal cancer patients were identified including 66 (13.1%) with involved circumferential margins. Patients with positive and negative circumferential margins had a similar distribution of age, gender and use of neoadjuvant radiotherapy. Tumours with involved circumferential margin comprised 98.5% T3 and T4 disease of which 51.5% received neoadjuvant radiotherapy. These were significantly associated with metastatic disease, increasing tumour size, circumferential and perforated tumours on univariate analysis. Multivariate analysis identified abdomino-perineal resection (odds ratio (OR) 3.35; P = 0.003), en-bloc multivisceral resection (OR 2.56; P = 0.032), T4 stage (OR 6.99; P
Databáze: OpenAIRE