Postprandial High Resolution Impedance Manometry Identifies Mechanisms of Non-Response to Proton Pump Inhibitors

Recognition of rumination and supragastric belching is often delayed as symptoms may be mistakenly attributed to gastroesophageal reflux disease (GERD). However, distinct from GERD, rumination and supragastric belching are more responsive to behavioral interventions than to acid-suppressive and anti-reflux therapies. Postprandial high-resolution impedance manometry (PP-HRIM) is an efficient method to identify rumination and belches. We investigated the distribution of postprandial profiles determined by PP-HRIM, and identified patient features associated with postprandial profiles among patients with non-response to proton pump inhibitors (PPIs).

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