Techniques in coloproctology · 2025
Early diagnosis of Crohn's disease in patients presenting with a perianal fistula: systematic review and development of a perianal red flags index.
СтатьяСистематический обзорНазвание и аннотация: Перевод в очереди
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Munster L J, Meriba G R, Schuitema J, van Dieren S, de Groof E J, Mundt M W, D'Haens G R, Bemelman W A, Buskens C J, van der Bilt J D W
Аннотация
BACKGROUND: Delay in diagnosing Crohn's disease (CD) in patients presenting with perianal abscess (PAA) and/or fistula (PAF) is common. The aim of this study was to identify red flags suggestive of CD.
METHODS: A systematic literature review was conducted to identify symptoms associated with CD in patients presenting with PAA/PAF. A questionnaire including those symptoms, supplemented with items from the International Organization for the Study of Inflammatory Bowel Diseases (IO-IBD) red flags index for luminal CD, was administered to all adult patients presenting with a PAF and eventually diagnosed with CD and matched patients (1:3) from the same study period with a cryptoglandular PAF (2012-2023) at a single non-academic teaching hospital. All patients were asked to recall symptoms/signs experienced during their first PAF.
RESULTS: The systematic review identified 8 articles reporting on 15 clinical characteristics in patients presenting with PAA (n = 2)/PAF (n = 6), supplemented with 13 items from the IO-IBD red flags index (28 items in total). A total of 25 patients with CD and 75 patients with PAF without CD answered the questionnaire. Univariate analysis identified seven items associated with CD (age, family history, > 2 perianal interventions, weight loss, abdominal pain, diarrhoea and fatigue), and four items remained significant in multivariate analysis: age (OR 3.4 [1.0-11.5]), > 2 previous perianal interventions (OR 3.4 [1.0-10.1]), weight loss (OR 14.4 [3.7-55.6]) and abdominal pain (OR 9.8 [1.9-49.8]). Receiver-operating characteristic curve (ROC) analysis showed that a combination of these red flags was associated with good discrimination of CD versus non-CD (AUC 0.83 [0.72-0.94]).
CONCLUSIONS: The perianal red flags index has a good predictive value for early identification of patients with PAF at risk for underlying CD.
METHODS: A systematic literature review was conducted to identify symptoms associated with CD in patients presenting with PAA/PAF. A questionnaire including those symptoms, supplemented with items from the International Organization for the Study of Inflammatory Bowel Diseases (IO-IBD) red flags index for luminal CD, was administered to all adult patients presenting with a PAF and eventually diagnosed with CD and matched patients (1:3) from the same study period with a cryptoglandular PAF (2012-2023) at a single non-academic teaching hospital. All patients were asked to recall symptoms/signs experienced during their first PAF.
RESULTS: The systematic review identified 8 articles reporting on 15 clinical characteristics in patients presenting with PAA (n = 2)/PAF (n = 6), supplemented with 13 items from the IO-IBD red flags index (28 items in total). A total of 25 patients with CD and 75 patients with PAF without CD answered the questionnaire. Univariate analysis identified seven items associated with CD (age, family history, > 2 perianal interventions, weight loss, abdominal pain, diarrhoea and fatigue), and four items remained significant in multivariate analysis: age (OR 3.4 [1.0-11.5]), > 2 previous perianal interventions (OR 3.4 [1.0-10.1]), weight loss (OR 14.4 [3.7-55.6]) and abdominal pain (OR 9.8 [1.9-49.8]). Receiver-operating characteristic curve (ROC) analysis showed that a combination of these red flags was associated with good discrimination of CD versus non-CD (AUC 0.83 [0.72-0.94]).
CONCLUSIONS: The perianal red flags index has a good predictive value for early identification of patients with PAF at risk for underlying CD.