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Both primary strictures and secondary anastomotic strictures are common complications in patients with inflammatory bowel diseases (IBD), especially Crohn’s disease (CD). Balloon dilation has been the gold standard in the endoscopic treatment of these strictures. Endoscopic stricturotomy (ESt, Figure 1) represents a promising novel approach, however, the data published on this method so far has been limited to a small sample and few sites. METHODS All ESts performed in IBD patients between September 2018 and April 2021 in our tertiary IBD center were included. Data on demographics, disease characteristics, procedure details and outcomes were analyzed. Technical success was defined as an ability to pass the scope through the stricture following the procedure. Complications included perforation and immediate or delayed bleeding with the need of intervention or hospitalization. RESULTS In total, 92 procedures were performed in 67 patients (60 with Crohn’s disease, CD, and 7 with ulcerative colitis, UC) Among these 46.3% were males. Mean age was 43.9±12.5 years and mean disease duration was 14.6±9.7 years. Single ESt was done in 73.1% (49) of patients, while 26.9% (18) required multiple procedures. Most common location of stricture was surgical anastomosis site (82, 89.1%), while remaining 10 were located at anal canal (de novo stricture). Anastomotic strictures included ileo-colonic (64.1%), colo-colonic (9.8%), ileo-rectal (3.3%), and ileal pouch-anal (12.0%) anastomoses. Previous endoscopic balloon dilation (EBD) was attempted in 53.3% of the procedures, 27.2% of the analyzed procedures were preceded by earlier ESt. Technical success was achieved in 83 ESts (90.2%), complications occurred in four cases (all delayed bleeding, managed conservatively). After the mean follow-up time of 18.1±10.0 months, cumulative probability of reintervention (ESt, EBD or surgery) at 6 months was 30.2% (95% CI 15.6-46.2%), 40.3% (95% CI 25.5-54.6%) at 12 months and 48.8% (95% CI 34,0-62,1%) at 18 months (Figure 2). Time to reintervention was not significantly affected by previous intervention, age of the anastomosis, sex or age of the patients, concurrent therapy and specific ESt technique employed. CONCLUSION ESt is a novel endoscopic technique, which is both efficacious and safe to be performed in patients with IBD-related strictures.

ENDOSCOPIC STRICTUROTOMY – A NOVEL THERAPEUTIC MODALITY FOR IBD-RELATED STRICTURES: FIRST EUROPEAN EXPERIENCE