후각의 최신 기초 연구 동향

배우용 대한이비인후과학회 2015 대한이비인후과학회지 두경부외과학 Vol.58 No.10

Olfaction plays an important role to detect environmental risk, taste the food, and performs various additional roles crucial to the nutrition, mood and memory. But it has been overlooked compared with other sensory organs, such as vision or hearing function. Recently, a variety of studies associated with olfactory system are in progress from periphery to central area. This review shows the brief summary of the recent ongoing study on olfaction.

측두골 부위에서 발생한 혈관육종 1예

배우용,강명구,정진숙,최순섭 대한이비인후과학회 2005 대한이비인후과학회지 두경부외과학 Vol.48 No.5

Angiosarcoma is a rare malignant vascular tumor that most commonly arises in the skin and superficial soft tissues of the head and neck. It accounts for less than 1% of all sarcomas, and 50% of these lesions occur in the head and neck. There are some clinical characteristics, such as insidious presentation, multifocal nature, aggressive behavior and poor prognosis. We report a case of angiosarcoma in a temporal region. A 75-year-old man presented with a 2-month history of left bloody otorrhea. Previously, he had two operations for the left chronic otitis media at a local clinic. After the second operation, bloody otorrhea began and was not controlled. We conducted revision canal wall down operation again, but failed to control bloody otorrhea. Biopsy was performed at the posterior portion of the open cavity. Histologic examination showed necrosis and atypical vascular proliferation, consistent with angiosarcoma.

이비인후과 영역에서 Unified Airway

배우용 대한이비인후과학회 2013 대한이비인후과학회지 두경부외과학 Vol.56 No.10

Unified airway is that upper airway and lower airway are not a separate organ, but unified and interdependent organ and a model for explaining the inflammatory disorder in the respiratory tract. Allergic rhinitis, non-allergic rhinitis and rhinosinusitis are common inflammatory disorders that occur in the nasal cavity. These disorders occur separately or combinedly. They are also associated with lower airway diseases, especially asthma. This article will review that relationship between these disorders and treatment modalities as a concept of unified airway.

HIV 감염 환자에서 비부비동염과 후각 장애

배우용,고태경 대한비과학회 2013 Journal of rhinology Vol.20 No.2

The prevalence of HIV infection is gradually increasing every year. Rhinosinusitis and complaints in relation to olfactory dysfunction are common in HIV-infected patients. These are rarely life-threatening but otolaryngologist should treat these patients aggressively, because rhinosinusitis and olfactory dysfunction can have a negative impact on the patients’quality of life. This paper covers these issues so that otolaryngologists may reasonably prevent, diagnosie, and treat persons suffering from rhinosinusitis and olfactory dysfunction related to HIV infection.

상기도 감염에 의한 후각 장애

배우용 대한이비인후과학회 2010 대한이비인후과학회지 두경부외과학 Vol.53 No.11

Postviral olfactory disorder (PVOD) is a sensorineural olfactory loss following an upper respiratory tract infection (URTI) and there is a close temporal connection between PVOD and URTI. PVOD is more common in women over 50 years of age. A thorough otolaryngologic evaluation including history, physical examination, neurologic assessment, and olfactory function test is mandatory to diagnose PVOD. Spontaneous recovery might occur in some patients from 6 months to several years. Although many drugs have been tried to treat it, no effective medical treatment exists. Patients should be counseled regarding safety issue and quality of life issue. Korean J Otorhinolaryngol-Head Neck Surg 2010;53:669-74

500 Hz-tone Burst 자극음을 이용한 전정유발 근전위

배우용,황찬호,허승덕,이태훈,장윤석,안중기,이현직,김재룡 대한이비인후과학회 2006 대한이비인후과학회지 두경부외과학 Vol.49 No.2

Background and Objectives:Vestibular evoked myogenic potential (VEMP) is muscle reflex caused by surface electrodes following repeated high-intensity auditory stimulation. The current study attempted to determine whether VEMP can be consistently evoked from the sternocleidomastoid muscle (SCM) by the 100 dB air-conducted and 50 dB bone-conducted 500 Hz-tone burst. Subjects and Method:Air-conducted and bone-conducted VEMPs in response to 500 Hz-tone burst were recorded from the SCM of 13 normal volunteers. Subjects were seated on their chairs and made to hold their heads turned up as far as possible towards the side, contralateral to the stimulated ear voluntarily. Two different sound durations (rise/fall time=2 msec, plateau time=2 msec[2/2] and rise/fall time=5 msec, plateau time=5 msec[5/5]) were presented through a insertphone or bone vibrators. Latencies and amplitudes of p13 and n23 responses were measured. Results:All normal volunteers showed p13-n23 responses to 50 dB bone-conducted tone burst as well as to 100 dB air-conducted tone burst. The values of latency of p13 and n23 were the most reliable at 5/5 air-conducted in evaluation by coefficiency of variance. Mean p13 and N23 latencies by airconducted tone burst were significantly longer than those of bone-conducted. Mean p13-n23 amplitudes by air-conducted tone burst were significantly larger than those by bone-conducted at 2/2 sound duration. Conclusion:VEMP could be consis-tently evoked by the 100 dB air-conducted and 50 dB bone-conducted 500 Hz-tone burst, especially at 5/5 air-conducted. (Korean J Otolaryngol 2006;49:143-7)

만성 비부비동염의 술 후 치료

배우용,조규상,고태경 대한이비인후과학회 부산,울산,경남 지부회 2014 임상이비인후과 Vol.25 No.2

비중격 농양으로 나타난 함치성 낭 1예

배우용,김소향,김철훈,나서희 대한이비인후과학회 2008 대한이비인후과학회지 두경부외과학 Vol.51 No.6

Nasal septal abscess can result from various causes such as septal hematoma from septal trauma or hematologic disorder, and infections of surrounding structures like nasal vestibule, upper lip and other oral lesions and hematogenous spread of other infections. Dentigerous cyst is one of the common odontogenic cysts, associated with unerupted teeth, and usually asymptomatic. Symptoms of the dentigerous cyst present mostly oral or maxillomadibular lesions, whereas nasal symptoms of the dentigerous cyst is uncommon. We report an unusual case of dentigerous of a 61 year-old of the dentigerous cyst of mesiodens with nasal septal abscess. (Korean J Otorhinolaryngol-Head Neck Surg 2008;51:556-8)

A Case of Ancient Schwannoma in Retromaxillary Area Removed with Le Fort I Osteotomy Approach

박정홍,배우용,김철훈,홍숙희 대한비과학회 2013 Journal of rhinology Vol.20 No.2

Schwannoma, which manifests as a smooth and solitary, encapsulated lesion, originates from the nerve sheaths of Schwann cells. Ancient schwannoma, a rare histologic variant of schwannoma, characterized by its distinctive degenerative changes. Basically, treatment entails complete removal of the mass, with maximal safeguarding of the nerve. However, depending on tumor size and extent, complete removal can be problematic. Le Fort I osteotomy in orthognathic surgery is widely utilized and can be effective to remove the skull base tumors. A 25-year-old woman presented with stabbing pain of 1-2 seconds duration occurring every two hours in the interior of the right face, which condition had persisted for one year. Magnetic resonance imaging showed mass lesion in the right retromaxillary area. Mass in retromaxillary area was removed by Le Fort I osteotomy. Pathologic examination confirmed the diagnosis of ancient schwannoma. In the course of a six-month follow-up, neither recurrence nor malocclusion was observed.

표피 낭과 공존하는 비강 내 신경초종 1예

고태경,배우용,나서희 대한이비인후과학회 2013 대한이비인후과학회지 두경부외과학 Vol.56 No.12

Schwannomas of the sinonasal tract are very rare benign neoplasm, which can arise from nerve sheath containing Schwann cells. Epidermal cysts are also rarely present in nasal cavity. They are thought to be congenital lesion associated with various craniofacial disorders or arise as a result of implantation of epidermal cells into the deeper dermal element. Several cases of the nasal schwannoma or epidermal cyst have been reported repectively, however nasal schwannoma with epidermal cyst never has been reported yet. We report the first case of nasal schwannoma which is coexists with epidermal cyst at the superior turbinate of the nasal cavity.