A population-based study of incidence, aetiology, treatment and outcome of enterocutaneous fistula.

The aim of this work was to investigate the incidence of enterocutaneous fistula (ECF), including both small bowel and colonic fistulas, in a defined population of 1.04 million during a 10-year period and to describe aetiology, treatments, care consumption and outcome. A comprehensive search algorithm including diagnostic and procedural codes, enterostomal therapy nurse notes and in-hospital care for >60 days yielded 1970 search hits. After reviewing medical records, 187 patients with ECF were identified. The annual incidence of ECF was 2.3 per 100 000, the incidence of ECF with intestinal failure type II was 0.9 per 100 000. Spontaneous closure of the fistula occurred in 16.0% of patients, while closure was seen in 97.3% of patients who underwent reconstructive surgery with recurrences in 6.7% and 8.3%, respectively. Cumulative ECF-related in-hospital care until closure or end of follow-up was 4 (range 0-61) weeks. Eighty-eight patients (47%) received home-based healthcare including parenteral feeding and/or fistula wound care. The estimated overall mortality at 1, 3 and 5 years was 33.7%, 42.1% and 47.6% respectively. Mortality was mainly in patients without spontaneous closure or reconstructive surgery, and the risk of ECF-related death was 30.2%. This study defines the population-based incidence of ECF and reports a high overall mortality rate. Initial survivors were characterized by either spontaneous closure or eligibility for later reconstructive surgery, but with an eventual mortality rate of approximately 20%. ECF patients are high consumers of care: 55.1% needed ≥4 weeks in hospital and many received home-based healthcare.

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© 2024 The Author(s). Colorectal Disease published by John Wiley & Sons Ltd on behalf of Association of Coloproctology of Great Britain and Ireland.