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Updated: Feb 13, 2026

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Normalización de Patrones de Pujo Disinérgico en Posición Sentada Predice Pruebas de Expulsión de Balón Normales en

Catherine Y Wang¹, Logan McLennan², Ritam H Patel²

¹Division of Gastroenterology and Hepatology, Northwestern Medicine.

The American journal of gastroenterology

|February 12, 2026

Abstracto

Background:

Bear down patterns during anorectal manometry (ARM) are classically evaluated in the left lateral decubitus (LLD) position. Testing in the seated position may more accurately reflect functional outcomes.

Methods:

384 adults undergoing ARM were assessed for dyssynergia in the LLD and seated positions. Logistic regression evaluated associations with 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 4.09-3871.75; p<0.0001).

Conclusions:

Testing in the seated position may more reasonably predict BET success. A seated assessment may enhance diagnostic accuracy in defecation disorders.

Palabras clave:

manometría anorrectal trastorno de la defecación posición sentada prueba de expulsión de balón fisiología anorrectal

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