Journal
OTOLARYNGOLOGY-HEAD AND NECK SURGERY
Volume 152, Issue 5, Pages 874-880Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0194599814568285
Keywords
endoscopy; gastroesophageal reflux disease; outpatient; reflux laryngitis
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Objective To compare the difference between white light (WL) and narrow-band imaging (NBI) endoscopy in evaluating patients who had reflux laryngitis and esophagitis. Study Design Retrospective review of medical records and endoscopic images. Setting Outpatient clinic. Subjects and Methods There were 102 consecutive patients with reflux esophagitis (mean age, 48 11 years) who had office-based transnasal esophagoscopy (TNE) with WL and NBI views, including 60 men (59%) and 42 women (41%). We compared WL and NBI endoscopy in observing the laryngeal and esophageal epithelium. The nasopharynx, base of the tongue, epiglottis, hypopharynx, larynx, esophagus, gastroesophageal junction, and stomach were examined, and all procedures were digitally recorded. All patients were evaluated with WL and NBI views to determine the reflux finding score (RFS) in the larynx and Los Angeles (LA) classification grade in the esophagus. Results The NBI views were more sensitive than the WL views in the erythema/hyperemia, vocal cord edema, and global RFS scores. The NBI view facilitated the identification of the erythema/hyperemia change representing dilation or proliferation of microvessels caused by epithelial inflammation. The global RFS score was significantly associated with severity of LA grade only with the NBI view. Conclusion The endoscopic findings with the NBI view permit an easier identification of the RFS parameters of laryngeal erythema/vocal cord edema, which have a stronger correlation with the severity of reflux esophagitis, than the WL view. The importance of NBI in the evaluation of reflux laryngitis and gastroesophageal reflux disease deserves further study.
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