Impedance Planimetry Establishes New Diagnostic and Severity Values for Gastric Sleeve Stenosis

Impedance planimetry measurements provide objective assessments in diagnosing gastric sleeve stenosis (GSS), a common complication following sleeve gastrectomy. This retrospective analysis of 110 upper endoscopies identifies new benchmark values for the diagnosis and severity of GSS. Impedance planimetry measurements of diameter and distensibility index were significantly lower with increasing severity of GSS, regardless of balloon fill volumes. A diameter ≥20 mm and a distensibility index ≥15 mm2/mmHg indicate normal gastric sleeve anatomy. These findings establish objective criteria for diagnosing and grading GSS, aiding clinicians in evaluating and managing this adverse event.