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Related Experiment Video

Updated: Jun 25, 2025

Simultaneous Laryngopharyngeal and Conventional Esophageal pH Monitoring

Simultaneous Laryngopharyngeal and Conventional Esophageal pH Monitoring

Published on: December 14, 2020

When symptoms are more than reflux.

Laura García Pravia¹, Constanza Ciriza de Los Ríos¹, Ana Zatarain Vallés²

¹Aparato Digestivo, Hospital Clínico San Carlos, España.

Revista Espanola De Enfermedades Digestivas

|May 22, 2024

Summary

This summary is machine-generated.

Rumination syndrome (RS) is a condition causing regurgitation, often misdiagnosed. High-resolution impedance manometry (HRIM) is key for diagnosing RS, distinguishing it from other GI disorders.

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Area of Science:

Gastroenterology
Digestive Physiology

Background:

Rumination syndrome (RS) presents with postprandial regurgitation, often leading to delayed diagnosis due to symptom overlap with GERD and achalasia.
Standard anti-acid treatments are frequently ineffective for RS, necessitating advanced diagnostic approaches.

Purpose of the Study:

To investigate the diagnostic utility of high-resolution impedance manometry (HRIM) in a patient with suspected rumination syndrome.
To illustrate the characteristic findings of RS using HRIM and impedance-pH monitoring.

Main Methods:

A case study involving a patient with chronic heartburn and regurgitation unresponsive to medical therapy.
High-resolution impedance manometry (HRIM) with a solid meal challenge, following Chicago Protocol 4.0.
24-hour impedance-pH monitoring to assess postprandial reflux events.

Main Results:

HRIM revealed findings consistent with rumination syndrome, including increased intragastric pressure and esophageal sphincter relaxation.
Impedance-pH monitoring showed proximal reflux episodes coinciding with the postprandial period.
Abdominophrenic biofeedback therapy led to clinical improvement.

Conclusions:

Rumination syndrome requires specific diagnostic criteria and can be accurately identified using HRIM, especially when symptoms are atypical or unresponsive to standard treatments.
While impedance-pH monitoring can show associated reflux, HRIM with solid meal is the gold standard for diagnosing RS.