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DOI: 10.1055/s-0040-1704039
MULTICENTER PROSPECTIVE RANDOMIZED STUDY TO COMPARE ENDOSCOPIC TREATMENT OF STRICTURES IN CROHN´S DISEASE (CD): SELF-EXPANDING METAL STENTS (SEMS) VS ENDOSCOPIC BALLOON DILATION (EBD). PROTDILAT STUDY
Publication History
Publication Date:
23 April 2020 (online)
Aims: Introduction EBD is the established endoscopic treatment for short strictures in CD. SEMS have been used for endoscopic treatment in patients that failed to dilation.
Aims 1). Efficacy and safety of endoscopic treatment (SEMSvs.EBD) in CD patients with stenosis; 2). Comparative cost study.
Methods Randomized, prospective, multicenter clinical trial of CD patients and obstructive symptoms with stenosis < 10cm and refractory to medical treatment. We exclude patients with stenosis previously treated with SEMS and/or EBD in the previous year and with stenosis no accessible to colonoscopy. The efficacy of the endoscopic treatment was defined by the percentage of patients free of a new therapeutic intervention (EBD,SEMS or surgery) due to symptomatic recurrence at one year of follow-up. A direct cost study was done.
Results 99 patients were randomized (19 excluded because they did not fulfil the inclusion criteria). Eighty patients, 39 women, with a median age of 45 (IQR:38-54.7) were finally included. The primary treatment was 39SEMS and 41EBD for ITT analysis. Success rate of EBD and SEMS was 80.5% and 51.3%, respectively (AdjustedOR,3.6;95%CI,1.3-10.2;p=0.013). In a subanalysis of patients with strictures >3cm differences between the 2 endoscopic procedures disappeared (EDB:66.7%vs.SEMS:63.6%). The length of the stricture (OR,1.01;95%CI,1.01-1.15;p=0.028) and the initial obstructive symptoms score of the patient (OR,2.91;95%CI,1.23-6.89;p=0.015) were the only factors related with the therapeutic success of EBD. A 6.3% adverse events were reported. The average cost for EBD patient was 893.27 euros (average 1.5dilations) and for SEMS patients was 1,942.16 euros.
Conclusions EDB is more effective than SEMS for CD strictures, with a good safety profile of both treatments. EBD is more cost-effective than SEMS. The length of the stricture and the initial obstructive symptoms of the patient are the only factors related to EBD success. The clinical scenario in which SEMS could be useful is strictures >3 cm. ClinicalTrials.gov NCT 02395354.
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