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논문 기본 정보

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학술저널
저자정보
Yen-Yang Chen (Division of Gastroenterology Taichung Veterans General Hospital Taichung Taiwan) Chen-Chi Wang (Department of Otolaryngology Taichung Veterans General Hospital Taichung Taiwan) Ying-Cheng Lin (Division of Gastroenterology Taichung Veterans General Hospital Taichung Taiwan) John Y Kao (Department of Internal Medicine Division of Gastroenterology Michigan Medicine University of Michigan Ann Arbor MI USA) Chun-Yi Chuang (Department of Otolaryngology Chung Shan Medical University Hospital Taichung Taiwan) Yung-An Tsou (Department of Otolaryngology-Head and Neck Surgery China Medical University Hospital Taichung Taiwan) Ja-Chih Fu (Computer Aided Measurement and Diagnostic Systems Laboratory Department of Industrial Engineering and Management National Yunlin University of Science and Technology Yunlin Taiwan) Sheng-Shun Yang (Institute of Biomedical Sciences National Chung Hsing University Taichung Taiwan) Chi-Sen Chang (Division of Gastroenterology Taichung Veterans General Hospital Taichung Taiwan) Han-Chung Lien (Division of Gastroenterology Taichung Veterans General Hospital Taichung Taiwan)
저널정보
대한소화관운동학회(현 대한소화기능성질환.운동학회) Journal of Neurogastroenterology and Motility (JNM) Journal of Neurogastroenterology and Motility (JNM) Vol.29 No.1
발행연도
2023.1
수록면
49 - 57 (9page)
DOI
10.5056/jnm22047

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Background/AimsHypopharyngeal multichannel intraluminal impedance-pH (HMII-pH) technology incorporating 2 trans-upper esophageal sphincter impedance channels has been developed to detect pharyngeal reflux. We used the HMII-pH technique to validate the candidate pharyngeal acid reflux (PAR) episodes based on the dual-pH tracings and determined the interobserver reproducibility. MethodsWe conducted a cross-sectional study in tertiary centers in Taiwan. Ninety patients with suspected laryngopharyngeal reflux and 28 healthy volunteers underwent HMII-pH test when off acid suppressants. Candidate PAR episodes were characterized by pharyngeal pH drops of at least 2 units and reaching a nadir pH of 5 within 30 seconds during esophageal acidification. Two experts manually independently identified candidate PAR episodes based on the dual-pH tracings. By reviewing the HMII-pH tracings, HMII-pH-proven PAR episodes were subsequently confirmed. The consensus reviews of HMII-pH-proven PAR episodes were considered to be the reference standard diagnosis. The interobserver reproducibility was assessed. ResultsA total of 105 candidate PAR episodes were identified. Among them 84 (80.0%; 95% CI, 71.0-87.0%) were HMII-pH-proven PAR episodes (82 in 16 patients and 2 in 1 healthy subject). Patients tended to have more HMII-pH-proven PAR episodes than healthy controls (median and percentile values [25th, 75th, and 95th percentiles]: 0 [0, 0, 3] vs 0 [0, 0, 0], P = 0.067). The concordance rate in diagnosing HMII-pH-proven PAR episodes between 2 independent observers was 92.2%. ConclusionOur preliminary data showed that 80.0% (71.0-87.0%) of the proposed candidate PAR episodes were HMII-pH-proven PAR episodes, among which the interobserver reproducibility was good.

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