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Unidentified Bright Objects on Brain Magnetic Resonance Imaging Affect Vestibular Neuritis
이호윤,김지찬,장동식,조신생 대한이비인후과학회 2015 Clinical and Experimental Otorhinolaryngology Vol.8 No.4
Objectives. The aim of this study was to investigate the differences in clinical manifestations of in two groups of vestibular neuritis (VN) patients with or without unidentified bright objects (UBOs). Methods. A prospective, observational study with 46 patients diagnosed with VN between May 2013 and November 2013 was executed. A caloric test, a cervical vestibular-evoked myogenic potentials (cVEMPs) test, brain magnetic resonance imaging (MRI), spontaneous nystagmus test, head impulse test, and head-shaking nystagmus test were performed. Results. Of the patients, 56.5% (n=26) were classified as UBO-positive by MRI. These showed lower caloric weakness and more prominent cVEMP asymmetry compared with the UBO-negative group (P<0.05). Total VN (TVN) was the most common in the UBO-positive group (45.0%), followed by superior VN (SVN, 30.0%), and inferior VN (IVN, 25.0%). However, in the UBO-negative group, SVN (75.0%) was the most common, followed by TVN and IVN (P<0.05). The recovery rate was not influenced by UBOs (P>0.05). Conclusion. UBOs on T2-weighted or fluid attenuated inversion recovery MRI may affect the patterns of the vestibular nerve in patients with VN.
이호윤 대한이비인후과학회 부산,울산,경남 지부회 2022 임상이비인후과 Vol.33 No.4
This study reviewed recent literature on Eustachian tube dysfunctions and intended to provide updates on the topic. An electronic database search was performed. Eustachian tube diseases are classified into three types: dilatory dysfunction, baro-challenge-induced dysfunction, and patulous Eustachian tube. For the diagnosis of Eustachian disease, a detailed history taking is essential. Evaluation of patients’ symptoms using questionnaires such as the ETDQ-7 is necessary to determine the status before and after evaluation and treatment. The Valsalva or the Toynbee maneuver is the most straightforward test to determine whether or not the Eustachian tube is patent. It is necessary to check the lumen and opening of the Eustachian tube in the nasal cavity, access to the nasal passage, and eardrum movement by an endoscope. Among the test methods available in the laboratory, sonotubometry is the most promising and accurate test. However, it has not yet been officially imported to Korea, so the nine-step inflation-deflation method still falls under the standard test method.
돌발성 난청에서 아연과 리포프로스타글란딘 E1의 치료 효과 분석
이호윤,김지찬,장동식,최명수,조진생,김아영 대한이비인후과학회 2015 대한이비인후과학회지 두경부외과학 Vol.58 No.5
Background and Objectives We aimed to analyze the therapeutic effect of zinc, lipoprostaglandin E1 in addition to systemic steroid therapy on hearing improvement for the treatment of idiopathic sudden hearing loss. Subjects and Method Retrospective medical chart reviews of 500 patients who had been diagnosed with unilateral idiopathic sudden hearing loss between May 2006 and April 2014 were performed. Then, we conducted a multiple linear regression analysis using the data of individual patients. Results Better hearing gain was associated with low tone hearing loss (p<0.001), better initial contralateral hearing (p<0.001), and the absence of dizziness (p=0.015). Patients who underwent intratympanic steroid treatment as salvage treatment showed a lower hearing gain (p<0.001). Zinc supplementation was effective for the treatment of patients with mild hearing loss (p<0.001). On the contrary, significant improvements in hearing gain were found in patients with profound hearing loss who were treated with an additional lipoprostaglandin E1 (p<0.001). Conclusion An additional use of zinc and lipoprostaglandin E1 may enhance hearing improvement for the treatment of idiopathic sudden hearing loss.
이호윤 중앙대학교 일본연구소 2018 日本 硏究 Vol.0 No.48
Amenomori Hoshu is known to be a political thinker who advocated ‘the diplomacy on the basis of sincerity and trust’ based on ‘equality, parity’ with Joseon unlike the modern Japan’s idea of invasion of Asia. However, If we see the historical records that mention Amenomori out of the records of the diplomatic envoy that was dispatched by the Joseon Dynasty to Japan's feudal government for intercommunication, it can be known that they described Amenomori’s actions and strives that conflict with ‘the diplomacy on the basis of sincerity and trust’ he advocated and the evaluation on Amenomori was not very good. Premodern East Asian Intellectuals evaluated other persons depending on the degree of achievement of ‘Chinese civilization which Confucianism (禮樂文物)’ that was the universal idea at that time aimed for, and ‘the diplomacy on the basis of sincerity and trust’ was established by confirming the feeling of solidarity with the counterpart standing on the basis of ‘etiquette and music culture and civilization’. Amenomori took charge of the practical affairs of the diplomacy with Joseon and while accepting the demand of Japan's feudal government and Joseon, actively arbitrated and negotiated with Joseon. In these processes, there were strives and frictions and because of that, he was negatively described in the record of Joseon. ‘The theory of the diplomacy on the basis of sincerity and trust’ that Amenomori advocated in his later days could be said to be an idea that was born by him emphasizing ‘Chinese civilization which Confucianism(禮樂文物)’ with many frictions and strives in the scenes of diplomacy as a lesson.