Journal of Clinical Otolaryngology Head and Neck Surgery
The Busan, Ulsan, Gyeoungnam Branch of Korean Society of Otolaryngology-Head and Neck Surgery

Clinical Feature of Patulous Eustachian Tube and Correlation with Nasal Cavity Volume

Hyun-Keun Kwon1, Eui-Kyung Goh1, Se-Joon Oh1, Il-Woo Lee1, Soo-Keun Kong1,*
1Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University School of Medicine, Busan, Korea
*교신저자: 공수근,602-739 부산광역시 서구 구덕로 179 부산대학교 의과대학 이 비 인후과학교실 전화: (051) 240-7536·전송: (051) 240-8668 E-mail:

© Copyright 2013 The Busan, Ulsan, Gyeoungnam Branch of Korean Society of Otolaryngology-Head and Neck Surgery. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Received: Sep 02, 2013; Revised: Sep 30, 2013; Accepted: Nov 08, 2013

Published Online: May 31, 2020


Background and Objectives: Patulous Eustachian tube (PET) is are caused by abnormal, non-attenuated sound transmission from the pharynx to the middle ear via an open Eustachian tube (ET). Our objective was to identify the causes, clinical feature, medical treatment of PET and analyze the correlation between nasal cavity volume and PET. Materials and Methods: A retrospective chart review was performed on 100 patients with a diagnosis of PET from March 1, 2010, to July 31, 2011. Anti-cholinergic nasal spray (Ipratropium bromide, Rhinovent®) was used as the medical treatment. Acoustic rhinometry and paranasal sinus computed tomography (CT) was prospectively performed to examine the correlation between nasal cavity volume. Results: There were 56 males and 44 females, and overall mean age at diagnosis was 38.9 years. Thirty-three patients had bilateral PET and 67 patients had unilateral PET. 77 patients has no identifiable cause and 17 patients has weight loss. Anti-cholinergic nasal spray treatment (Rhinovent®) was carried out on 64 of 100 patients and 34 of the 64 patients (53.1%) achieved an improvement. AR, paranasal sinus CT was revealed no statistically significant correlation between nasal cavity volume and PET. Conclusion: Unilateral PET was found to be twice as common as bilateral PET. Weight loss was found to be the most common cause and autophony to be the most common symptom. Anti-cholinergic nasal sprays can be used appropriately for early treatment. No correlation was found between nasal cavity volume and PET occurrence. (J Clinical Otolaryngol 2013;24:194–200)

Keywords: Patulous eustachian tube; Anticholinergics; Nasal cavity; Volume