Normalization of Dyssynergic Bear Down Patterns in the Seated Position Predicts Normal Balloon Expulsion Testing on High-Resolution Anorectal Manometry

The American Journal of Gastroenterology 2026

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Authors: Catherine Y. Wang, Logan McLennan, Ritam H. Patel, Swati Yarlagadda, Maxwell E. Shramuk, Joy J. Liu, Darren M. Brenner
DOI: 10.14309/ajg.0000000000003951
Cited by: 1
References: 7

Abstract

INTRODUCTION: Bear down patterns during anorectal manometry are classically evaluated in the left lateral decubitus position. Testing in the seated position may more accurately reflect functional outcomes. METHODS: Overall, 384 adults undergoing anorectal manometry were assessed for dyssynergia in the left lateral decubitus and seated positions. Logistic regression evaluated associations with balloon expulsion testing (BET) outcomes. RESULTS: Normalization of dyssynergic patterns in the seated position occurred in 3.9% (n = 19) resulting in higher odds of successful BET (

Fields of Study & Subjects

Pelvic floor disorders treatments Gastrointestinal motility and disorders Congenital gastrointestinal and neural anomalies

Publication details

Journal / source
The American Journal of Gastroenterology
Publisher
Ovid Technologies (Wolters Kluwer Health)
Volume
121
Issue
6
Pages
1519–1521
Publication date
12 February 2026
Language
EN