Examining Balloon Expulsion Testing as an Office-Based, Screening Test for Dyssynergic Defecation: A Systematic Review and Meta-Analysis.

Objectives: Balloon expulsion testing (BET) is recommended to evaluate for dyssynergic defecation in patients with chronic constipation (CC). However, it remains poorly standardized and is limited to specialized centers. Our goal was to assess the clinical utility of balloon expulsion as an initial test for dyssynergic defecation and to determine appropriate testing parameters.