ArticleBJS open2024
Risk factors and protective measures for desmoid tumours in familial adenomatous polyposis: retrospective cohort study.
Article in BJS open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundFamilial adenomatous polyposis is a cancer-predisposing syndrome caused by germline pathogenic variants of the adenomatous polyposis coli gene, leading to numerous colorectal polyps and a high risk of colorectal cancer. Desmoid tumours have become significant in the management of familial adenomatous polyposis after a colectomy, yet the exact incidence remains undetermined due to a lack of dedicated surveillance.
methodsThis retrospective study accessed data from the prospectively maintained Hereditary Digestive Tumours Registry from 2000 to 2023. Desmoid-free survival was analysed using Cox regression and Kaplan-Meier curves.
resultsA total of 202 patients with familial adenomatous polyposis who underwent colorectal surgery were enrolled. Of the patients, 21 (10.4%) developed intra-abdominal desmoid tumours after surgery. Desmoid tumours were associated with surgical procedure, histology of cancer at the time of surgery, and family history of intra-abdominal desmoid tumours. The overall desmoid-free survival probability at a median follow-up of 84 months was 90%. Histology of cancer at the time of surgery (HR 0.25 (95% c.i. 0.10 to 0.59)), family history of intra-abdominal desmoid tumours (HR 2.92 (95% c.i. 1.22 to 6.97)), an open approach compared with a laparoscopic approach (HR 2.43 (95% c.i. 1.03 to 5.73)), and a proctocolectomy compared with a rectal-sparing total colectomy (HR 3.01 (95% c.i. 1.28 to 7.10)) emerged as significant prognostic factors affecting desmoid-free survival.
conclusionA minimally invasive rectal-sparing total colectomy appears protective against the development of desmoid tumours. Early surgery does not seem to increase desmoid tumour risk. A dedicated surveillance regimen for desmoid tumours in patients with familial adenomatous polyposis is needed to improve outcomes and quality of life.
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