title: The Role of Transnasal Esophagoscopy in ENT Office: A Prospective, Multicenter Study in Korea.
abstract: OBJECTIVE
  The purpose of study was to report the current role of transnasal esophagoscopy (TNE) in Korea.
  
  
  METHODS
  One hundred thirty-seven patients who underwent TNE at Soonchunhyang University Bucheon Hospital (n=69) and Korea University Anam Hospital (n=68) from July 2007 to February 2009 were prospectively analyzed. Laryngopharyngeal reflux disease (LPRD) patients without any response to proton-pump inhibitor (n=102), and patients with complaints that require esophagoscopy as part of their evaluation (n=35) were included in this study; investigation of metachronous lesions or routine follow-up screening of head and neck cancer patients, n=17; dysphagia, n=9; blood tinged saliva, n=4; to determine the cause of vocal fold paralysis as screening tool, n=4; suspicious esophageal foreign body, n=1.
  
  
  RESULTS
  Fifty-three patients (38.7%) had positive findings on TNE. Positive finding ratio was highest in group of dysphagia (7 among 9 patients, 78%). Forty-two patients (41.1%) were found to have pathology (esophagitis, n=41; esophageal diverticulum, n=1) during the screening examination for LPRD. There were no significant complications in any of the patients.
  
  
  CONCLUSIONS
  TNE is a high-yield diagnostic and therapeutic modality available to otolaryngologists for use on awake patients in the office setting.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Hallym University College of Medicine, Seoul, Korea.
authors.forename: Eun-Jae
authors.initials: EJ
authors.lastname: Chung
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Hallym University College of Medicine, Seoul, Korea.
authors.forename: Young-Soo
authors.initials: YS
authors.lastname: Rho
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea.
authors.forename: Kwang-Yoon
authors.initials: KY
authors.lastname: Jung
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Soonchunhyang University College of Medicine, Bucheon, Korea.
authors.forename: Jae-Wook
authors.initials: JW
authors.lastname: Kim
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Soonchunhyang University College of Medicine, Bucheon, Korea.
authors.forename: Seung-Won
authors.initials: SW
authors.lastname: Lee
keywords: Esophagus; Safety; Transnasal esophagoscopy