Post‐reflux swallow‐induced peristaltic wave is impaired in laryngopharyngeal and gastro‐oesophageal reflux disease

Autor: Jin-soo Park, Gregory L. Falk, Hans Van der Wall
Rok vydání: 2021
Předmět:
Zdroj: Clinical Physiology and Functional Imaging. 42:8-14
ISSN: 1475-097X
1475-0961
DOI: 10.1111/cpf.12729
Popis: INTRODUCTION Laryngopharyngeal reflux (LPR) and gastro-oesophageal reflux disease (GORD) result from the reflux of gastric contents. The post-reflux swallow-induced peristaltic wave (PSPW) is an oesophageal reflex that facilitates chemical clearance of gastric contents following reflux events. PSPW index is a novel parameter that has been validated in assessing the effectiveness of chemical clearance in GORD, but not in LPR. This study aimed to assess chemical clearance in LPR and GORD by measuring PSPW indices in a consecutive series of patients. METHODS Reviewers blindly analysed off-therapy impedance-pH tracings from 187 patients clinically categorized as LPR (n = 105) or GORD (n = 82) by predominant symptom profile. Conventional impedance-pH measures and PSPW indices were analysed. RESULTS Mean PSPW index in the LPR group was higher than in the GORD group (39.7% (±17.7%) vs. 20.6% (±13.4%); p
Databáze: OpenAIRE