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위재운,배기범,권재환,조중환 대한이비인후과학회 2008 대한이비인후과학회지 두경부외과학 Vol.51 No.2
Lymphatic malformation is a congenital abnormality of the lymphatic system, which manifests frequently at birth or before 2 years of age. Lymphatic malformations are classified as macrocystic or microcystic. Microcystic lesions typically occur above the level of mylohyoid muscle and need conservative treatment rather than surgical resection because of the high rate of incomplete excision and recurrence. We report our experience with two cases of radiofrequency ablation of lymphatic malformation in the oral cavity recently seen in our practice. (Korean J Otorhinolaryngol-Head Neck Surg 2008;51:202-5)
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수술 후 안구함몰을 보인 안와 외향골절 환자에서 내시경과 티타늄을 심은 다공성 폴리에틸렌을 이용한 안와성형술 1예
위재운,정태영,노웅재,권재환 대한이비인후과학회 2009 대한이비인후과학회지 두경부외과학 Vol.52 No.11
Enophthalmos means displacement of the globe into the bony orbit backward, and usually downward. In post-traumatic enophthalmos, the mechanisms that determine the globe position can be the enlargement of the orbital cavity, the herniation of orbital fat into the maxillary sinus, fat atrophy, loss of ligament support, and scar contracture. It can be reconstructed through several approaches such as transconjunctival, canthotomy, lower eye lid, coronal approach, and by using bone, cartilage, and alloplastic materials. The authors report a case of postoperative enophthalmos reconstructed through subciliary and transnasal endoscopic approaches using porous polyethylene with embedded titanium.
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김정근,위재운,권재환,조중환 대한이비인후과학회 2008 대한이비인후과학회지 두경부외과학 Vol.51 No.4
This study investigated the surgical methods and their results according to the subtypes of zygomatic fractures. Subjects and Method:Medical records of 99 zygomatic fractures treated between March 1997 and December 2006 were reviewed regarding fracture type, surgical method and time of operation from the initial trauma. Results:Overall, operations were performed in 70 out of 99 cases. For zygomatic arch fractures, facial asymmetry and trismus in all 14 of 20 cases after surgery by Gillies incision were improved, and one revision procedure was performed. For tetrapod and multifragment fractures, one revision procedure was performed because of displacement of repaired bone fragment following surgery in 60 cases. Considering location and replacement of fractures, surgery was performed through one of incisions below:Gillies, lateral canthal, gingivobuccal, and subcilliary incision. All preoperative symptoms were improved. Conclusion:For zygomatic arch fractures, Gillies approach would be an optimal method, while for displaced tetrapod and multifragment fractures, two or more point fixation points would achieve satisfactory results. (Korean J Otorhinolaryngol-Head Neck Surg 2008;51:326-30)
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부비동염 및 비용종을 동반한 안와내벽 외향골절의 내시경적 치료 3예
정태영,위재운,권재환 대한이비인후과학회 2012 대한이비인후과학회지 두경부외과학 Vol.55 No.4
The most possible complication of transnasal reconstruction of medial orbital wall fracture is infection of the dependent sinuses. As a result, endoscopic reduction in a medial blowout fracture with sinusitis and nasal polyp has been avoided. The silastic sheet and Merocel packing, which are placed in the ethmoid sinus, may cause or worsen sinusitis since they could cover up the natural ostia in the vicinity of sinuses. The spread of infection into the orbital wall and the difficulty of recognizing between herniated orbital tissues, infection and nasal polyp makes it difficult to perform endoscopic reduction when there are concomitant sinusitis and nasal polyp. The author reports three recently encountered cases of endoscopic reduction of medial blowout fracture with sinusitis and nasal polyp.
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강직형 비디오 내시경을 이용한 이관기능 검사법의 유용성
권재환,위재운,조중환,박기호,고의경 대한이비인후과학회 2007 대한이비인후과학회지 두경부외과학 Vol.50 No.11
:Since chronic E-tube dysfunction is believed to play an important role in the development of otitis media, it is necesary to evaluate the function of the E-tube clinicaly. Recently, the endoscopic techniques have ben used more frequently to directly inspect the E-tube orifice. In this study, I evaluated the morphologic and dynamic motion of the E-tube orifice with 4 mm 30° videoendoscope and compared with the other existing tests of the E-tube function. Subjects and Method:101 E-tubes with chronic otitis media were selected. I performed the transnasal 4 mm 30°pharyngeal E-tube orifice when patients were swallowing, and classified morphologic and dynamic findings of the E-tube orifice into three categories as follows:Type A, the E-tube is opened widely on swallowing with normal mucosa (normal);Type B, the E-tube is not opened with normal mucosa (functional blockage) and Type C, the E-tube is not opened with pathologic mucosa (mechanical blockage). Throughout the study, the control group was 60 E-tubes that were free of ear pathologies. Results:There ce. The videoendoscopic analysis of the E-tube orifice had a close correlations with the results of inflation deflation test and with the clasification of otitis media, but had no significant relationship with the degre of mastoid pneumatization. Conclusion:The morphologic and dynamic examination of the E-tube orifice with videoendoscopic techniques may be an important and useful method to examine the tubal function as wel as its dysfunction. (Korean J Otorhinolaryngol-Head Neck Surg 2007 ;50 :983-8) :Endoscopy· Eustachian tube.
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건강보험공단 자료를 이용한 빅데이터 자료분석 방법: 부비동염수술과 천식사이의 관련성에 대한 고찰과 분석을 위한 방법론
유승학,위재운,김정훈,윤성로 대한비과학회 2015 Journal of rhinology Vol.22 No.1
Background and Objectives:Sinus surgery has been reported to improve pulmonary function and decrease the use of asthma medications in patients with chronic rhinosinusitis and asthma. Most studies, however, have used a small number of patients and were conducted over a short period. To demonstrate a causal relationship between sinus surgery and asthma, a sufficient amount of patient data observed over a long period is required. To address the limitations of the existing approaches, we conducted a preliminary methodological study for large-scale data analysis using data from the National Health Insurance Service (NHIS) to suggest a basis for the effect of sinus surgery on asthma. Materials and Methods:The data from NHIS consisted of unidentified medical histories of a sample cohort representing the whole nation over a period of nine years. We selected the following types of study samples: 1) patients with surgical codes for sinus surgery; 2) patients with disease codes for sinusitis; 3) patients with disease codes for asthma; and 4) patients with medication codes for asthma treatment. Results:In this study, we applied a methodology for selection of subjects from big data to investigate the effect of sinus surgery on improving asthma in the future. We could include 152 subjects after the four-stage selection method from 1,025,340 patients. Conclusion:We could establish a method to select patients with history of sinus surgery and asthma treatment from a big data. This methodology using big data may contribute to identify relationship between sinus surgery and asthma treatment in the future.
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