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Gastro-esophageal reflux disease (GERD) is the most common cause for noncardiac chest pain (NCCP), with an estimated prevalence rate ranging between 30% and 60%. Heartburn and NCCP may share common mechanisms. To assess whether particular patterns of impedance-pH variables characterize patients with dominant heartburn, regurgitation, or NCCP and their ability to predict proton pump inhibitor (PPI) response for each symptom, GERD patients, evaluated with high-resolution manometry (HRM) and impedance-pH, were included. In total, 109 NCCP, 68 heartburn, and 64 regurgitation patients were included. Pathological reflux episodes were observed in 28%, 19%, and 56% (p < 0.001). Pathological mean nocturnal baseline impedance (MNBI) values were observed in 55%, 53%, and 34% (p < 0.05). Hypomotility was more frequent in NCCP compared to heartburn patients (p < 0.05). When comparing NCCP with heartburn, hypomotility was associated with NCCP perception (OR: 2.34, 95% CI: 1.23-4.43; p < 0.01). When comparing NCCP with regurgitation, >80 refluxes and type 2/3 esophagogastric junction (EGJ) were associated with regurgitation perception (OR: 0.31, 95% CI: 0.16-0.59; p < 0.001, and OR: 0.5, 95% CI: 0.27-0.93; p < 0.05), while pathological MNBI was associated with NCCP perception (OR: 2.34, 95% CI: 1.23-4.43; p < 0.01). 45.5% NCCP patients, 45.6% with heartburn, and 36% with regurgitation responded to PPIs (p < 0.05). At multivariate analysis, pathological MNBI or PSPW index were associated with PPI responsiveness in patients with NCCP or heartburn, while in patients with regurgitation, pathological MNBI was associated with PPI responsiveness and a reflux number >80 to PPI refractoriness. We highlight the usefulness of an accurate clinical and functional evaluation of GERD patients, allowing to discriminate particular characteristics in patients with dominant heartburn, NCCP, or regurgitation, which may benefit of distinct therapeutic strategies. © 2024 John Wiley & Sons Ltd.

Citation

Mentore Ribolsi, Lorenzo Marchetti, Lucrezia Maria Olmi, Michele Cicala, Edoardo Savarino. Esophageal chest pain resembles heartburn in reflux metrics and response to proton pump inhibitor therapy. Neurogastroenterology and motility. 2025 Jan;37(1):e14953

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PMID: 39485991

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