Differences in Diagnostic Rates After Hypopharyngeal-esophageal Impedance-pH Monitoring of Laryngopharyngeal Reflux Patients by Age and Sex.

J Voice

Department of Otolaryngology-Head & Neck Surgery, Kyung Hee University School of Medicine, Kyung Hee University Medical Center, Seoul, Korea. Electronic address:

Published: January 2025

Purpose: To evaluate the differences in diagnostic rates according to the age and sex of patients with suspected laryngopharyngeal reflux (LPR) symptoms and completed the 24-hour hypopharyngeal-esophageal multichannel intraluminal impedance-pH (24h-HEMII-pH) monitoring.

Methods: Patients with LPR symptoms underwent the 24h-HEMII-pH monitoring. We compared the diagnostic rates of LPR in patients with LPR symptoms according to age and sex. The number of reflux episodes and type of reflux were compared among patients who were confirmed to have LPR according to age and sex.

Results: A total of 249 patients with suspected LPR symptoms who completed 24h-HEMII-pH monitoring were analyzed. A total of 170 patients (68.3%) were diagnosed with LPR after 24h-HEMII-pH monitoring. There were 57 (67.1%) men and 113 (68.9%) women. The old age group (older than 55 years) showed a statistically significant higher diagnostic rate than the young age group (73.5%, 60.8%, p=0.034). Women's diagnostic rate was statistically higher in the old age group than that in the young age group (75% vs. 58.3%, p=0.026). There were no specific differences in the number of refluxes in the diagnosed patients between the age groups, and there were no differences in the initial reflux symptom index.

Conclusions: Among those who visited the clinic with suspected LPR symptoms and performed 24h-HEMII-pH monitoring, the diagnostic rate of LPR was higher in the older age group than that in the younger age group.

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http://dx.doi.org/10.1016/j.jvoice.2022.07.014DOI Listing

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