Motorised spiral enteroscopy: first prospective clinical feasibility study.

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Currently available methods for small bowel endoscopy are often time consuming; motorised PowerSpiral Enteroscopy (PSE) is a further development of spiral enteroscopy to facilitate the approach to the small bowel. The aim of this bicentric prospective trial was to study feasibility and yield of peroral PSE.Consecutive patients with suspected small bowel disease and indication for antegrade enteroscopy were included in two tertiary referral centres. Primary objective was diagnostic yield of antegrade PSE. Secondary objectives included technical success (defined as successful endoscope insertion at least to ligament of Treitz), depth of maximum insertion (DMI), median insertion time to DMI, rate of therapeutic procedures and adverse events.During a 30-month period, 140 procedures were performed on 132 patients (58 female, 74 male; median age: 68 (20-100) years) under general anaesthesia. Overall diagnostic yield of PSE was 74.2%; with 68.2% of procedures including some form of endotherapy. Technical success rate of PSE was 97%; median DMI was 450 cm (0-600) with a median insertion time to DMI of 25 min (3-122). Antegrade panenteroscopy to the cecum was achieved in 14 cases (10.6%). Overall adverse event (AE) rate was 14.4%; two major serious AEs occurred (1.5%), one delayed perforation, one bleeding from Mallory-Weiss lesion.This pilot clinical trial demonstrates that PSE is effective for diagnostic and therapeutic antegrade enteroscopy and may compare favourably with traditional methods of deep enteroscopy in ease of use and procedural duration. More comparative data are required to assess clinical application and safety of PSE.NCT02965209.

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