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학술저널
저자정보
Hua-Nong Luo (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) 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 (School of Medicine Chung Shan Medical University Taichung Taiwan) Han-Chung Lien (Department of Post-Baccalaureate Medicine College of Medicine National Chung Hsing University Taichung Taiwan)
저널정보
대한소화관운동학회(현 대한소화기능성질환.운동학회) Journal of Neurogastroenterology and Motility (JNM) Journal of Neurogastroenterology and Motility (JNM) Vol.29 No.2
발행연도
2023.4
수록면
174 - 182 (9page)
DOI
10.5056/jnm22049

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Background/AimsDiagnosis of isolated laryngopharyngeal reflux symptoms (ILPRS), ie, without concomitant typical reflux symptoms (CTRS), remains difficult. Mean nocturnal baseline impedance (MNBI) reflects impaired mucosal integrity. We determined whether esophageal MNBI could predict pathological esophagopharyngeal reflux (pH+) in patients with ILPRS. MethodsIn this cross-sectional study conducted in Taiwan, non-erosive or low-grade esophagitis patients with predominant laryngopharyngeal reflux symptoms underwent combined hypopharyngeal multichannel intraluminal impedance-pH monitoring when off acid suppressants. Participants were divided into the ILPRS (n = 94) and CTRS (n = 63) groups. Asymptomatic subjects without esophagitis (n = 25) served as healthy controls. The MNBI values at 3 cm and 5 cm above the lower esophageal sphincter (LES) and the proximal esophagus were measured. ResultsDistal but not proximal esophageal median MNBI values were significantly lower in patients with pH+ than in those with pH– (ILPRS in pH+ vs pH–: 1607 Ω vs 2709 Ω and 1885 Ω vs 2563 Ω at 3 cm and 5 cm above LES, respectively; CTRS in pH+ vs pH–: 1476 vs 2307 Ω and 1500 vs 2301 Ω at 3 cm and 5 cm above LES, respectively, P < 0.05 for all). No significant differences of any MNBI exist between any pH– subgroups and healthy controls. The areas under the receiver operating characteristic curve in the ILPRS group were 0.75 and 0.80, compared to the pH– subgroup and healthy controls (P < 0.001 for both), respectively. Interobserver reproducibility was good (Spearman correlation 0.93, P < 0.0001). ConclusionDistal esophageal MNBI predicts pathological reflux in patients with ILPRS.

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