American journal of otolaryngology · 2020
Narrow band imaging might contribute to the diagnosis of laryngopharyngeal reflux.
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Wu Dipanpan, Cui Xinhua, Guo Ying, Geng Bo, Gao Fangfang, Liang Hui
Аннотация
PURPOSE: Laryngopharyngeal reflux (LPR) accounts for 4-10% of outpatient visits. The standard domestic LPR diagnostic tools are the reflux finding score (RFS) and reflux symptom index (RSI). Narrow band imaging (NBI) can identify previously unknown characteristic microvessel features. Our aim was to explore the role of NBI in LPR diagnosis.
MATERIALS AND METHODS: We recruited 56 LPR outpatients and 41 symptom-negative controls. All individuals received RSI and RFS scores and underwent 24-hour multichannel intraluminal impedance-PH (MII-pH) monitoring and endoscopic NBI before and after treatment. The positivity rates in the study and control groups, before and after treatment, and using NBI and the conventional method were evaluated.
RESULTS: Fifty-one LPR and six control patients had sparse light brownish dots or tufted light brownish dots in the postcricoid region. The RSI and RFS positivity rates were 31.3% and 87.1%, respectively. NBI is as effective as the RFS (P < 0.05), and has poor consistency with the RSI (P < 0.05). Fifty-three LPR patients underwent posttreatment laryngoscopy. The positivity rate decreased to 17.0% (P < 0.05).
CONCLUSION: NBI has good value for LPR diagnosis.
MATERIALS AND METHODS: We recruited 56 LPR outpatients and 41 symptom-negative controls. All individuals received RSI and RFS scores and underwent 24-hour multichannel intraluminal impedance-PH (MII-pH) monitoring and endoscopic NBI before and after treatment. The positivity rates in the study and control groups, before and after treatment, and using NBI and the conventional method were evaluated.
RESULTS: Fifty-one LPR and six control patients had sparse light brownish dots or tufted light brownish dots in the postcricoid region. The RSI and RFS positivity rates were 31.3% and 87.1%, respectively. NBI is as effective as the RFS (P < 0.05), and has poor consistency with the RSI (P < 0.05). Fifty-three LPR patients underwent posttreatment laryngoscopy. The positivity rate decreased to 17.0% (P < 0.05).
CONCLUSION: NBI has good value for LPR diagnosis.