Diagnostic yield and therapeutic impact of novel motorized spiral enteroscopy in small-bowel disorders: a single-center, real-world experience from a tertiary care hospital (with video)

      Background and Aims

      Novel motorized spiral enteroscopy (NMSE) is a recent advancement in the field of enteroscopy and offers multiple features, including self-propulsion, better irrigation, and shorter enteroscope length with a larger channel. The aim of this study was to evaluate the efficacy in terms of diagnostic yield and therapeutic success of NMSE in patients undergoing enteroscopy by antegrade and/or retrograde approaches for suspected small-bowel disease.


      We retrospectively evaluated consecutive patients with symptomatic small-bowel disease who underwent enteroscopy over a 6-month period. Diagnostic yield, therapeutic success, total enteroscopy rate (TER), technical success, total procedural time, depth of maximal insertion, and adverse events related to the NMSE procedure were noted.


      Of 61 patients (mean age, 45.67 ± 15.37 years; 43 men) included for NMSE, 57 patients underwent successful enteroscopy with a technical success of 93.4%. The overall diagnostic yield was 65.5% (95% confidence interval, 52.31-77.27) and 70.1% (95% confidence interval, 56.60-81.57) in patients who underwent successful NMSE; TER was 60.6%: 31.1% by the antegrade approach and 29.5% by a combined antegrade and retrograde approach. Depth of maximal insertion and procedural time was of 465 cm (range, 100-650) and 40 minutes (range, 25-60), respectively, by the antegrade approach and 140 cm (range, 50-200) and 35 minutes (range, 30-60) by the retrograde route. Lesions were classified as inflammatory (n = 25), vascular (n = 10), and mass (n = 4). Biopsy specimens were obtained in 50.8% subjects, and 23% patients underwent therapeutic procedures. No major adverse events were seen.


      NMSE is a promising technology, showing high efficacy as a diagnostic and therapeutic tool in the management of otherwise difficult-to-treat small-bowel disease.

      Graphical abstract


      APC (argon plasma coagulation), BAE (balloon-assisted enteroscopy), DBE (double-balloon enteroscopy), NMSE (novel motorized spiral enteroscopy), SBE (single-balloon enteroscopy), SE (spiral enteroscopy), TER (total enteroscopy rate)
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