The American journal of gastroenterology · 2026
Normalization of Dyssynergic Bear Down Patterns in the Seated Position Predicts Normal Balloon Expulsion Testing on High-Resolution Anorectal Manometry.
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Wang Catherine Y, McLennan Logan, Patel Ritam H, Yarlagadda Swati, Shramuk Maxwell E, Liu Joy J, Brenner Darren M
Аннотация
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 (<1 minute) (OR 30.31; 95% CI 4.09-3,871.75; P < 0.0001).
DISCUSSION: Testing in the seated position may more reasonably predict BET success. A seated assessment may enhance diagnostic accuracy in defecation disorders.
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 (<1 minute) (OR 30.31; 95% CI 4.09-3,871.75; P < 0.0001).
DISCUSSION: Testing in the seated position may more reasonably predict BET success. A seated assessment may enhance diagnostic accuracy in defecation disorders.