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Esophageal acid burden in reflux patients with normal endoscopy: Does esophageal peristalsis matter? | LitMetric

Esophageal acid burden in reflux patients with normal endoscopy: Does esophageal peristalsis matter?

J Formos Med Assoc

Department of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan; Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan. Electronic address:

Published: January 2022

AI Article Synopsis

Article Abstract

Background: A majority of patients with gastroesophageal reflux disease (GERD) have normal endoscopy. We aimed to investigate whether esophageal primary and secondary peristalsis influence esophageal reflux parameters in patients with normal endoscopy.

Methods: We enrolled consecutive patients with typical reflux symptoms and normal endoscopy. All patients underwent High resolution manometry (HRM) and 24-h impedance-pH studies off therapy. During HRM, secondary peristalsis was evaluated using ten 20-mL rapid air infusions into the esophagus, while primary peristalsis was evaluated using ten 5-mL water swallows.

Results: A total of 43 patients completed the study; 13 patients had normal motility, 20 had ineffective esophageal motility (IEM), and 10 had absent contractility. Acid exposure time (AET) (total, supine, and upright) was significantly higher in those with absent primary peristalsis (absent contractility) compared to normal motility (P = 0.001; 0.01; 0.007) and IEM (P = 0.002; 0.02; 0.03). Supine AET was significantly higher in patients without secondary peristalsis compared to those with secondary peristalsis (P = 0.04).

Conclusion: In the setting of normal endoscopy, acid reflux burden is more profound in patients with absent primary peristalsis, as well as in patients lacking a secondary peristaltic response to esophageal air distension.

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Source
http://dx.doi.org/10.1016/j.jfma.2021.05.021DOI Listing

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