Incidence, risk factors and preventive strategies for post-operative recurrence of Crohn’s disease: A retrospective propensity-matched cohort analysis
摘要
Crohn’s disease (CD) is characterized by recurrence following surgical resection. We assessed the post-operative recurrence rates, plausible risk factors and the prophylactic measures for prevention of the same.
MethodsThis retrospective cohort included CD patients who underwent ileocolic resection from 2005 to 2021 with ≥ 1 year follow‑up to evaluate the association between post-operative endoscopic surveillance and recurrence‑free survival. Surveillance patients were matched 1:1 to non‑surveillance controls using nearest‑neighbor propensity scores estimated from a logistic regression model that included age, sex, smoking, disease behavior and location, surgical approach, appendectomy history, prior anti-tubercular therapy and pre-operative prophylaxis (caliper = 0.20 SD of the logit; no replacement). Recurrence-free survival was analyzed by Kaplan-Meier curves, log-rank test and adjusted hazard ratios from multi-variable Cox regression.
ResultsOf 90 patients (60% male; median follow‑up 45 months, interquartile range (IQR) 20.75–72), ileal stricturing disease predominated; clinical recurrence occurred in 51% (median recurrence‑free survival 61 months). One and three‑year clinical recurrence rates were 23.3% and 36.3%, respectively; one and three‑year endoscopic recurrence rates were 30.1% and 42.8%, respectively. In the propensity‑matched cohort, endoscopic surveillance was associated with a 34% relative reduction in the hazard of clinical recurrence (HR 0.66; 95% CI 0.32–1.38). Surveillance‑guided prophylaxis achieved 81.3% recurrence‑free survival at 24 months. Active smoking independently increased endoscopic recurrence risk (HR 2.96; 95% CI 1.18–7.38; p < 0.001).
ConclusionEndoscopy-driven post-operative surveillance with timely initiation or escalation of prophylaxis and smoking cessation was associated with longer recurrence‑free survival.
Graphical Abstract