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장민욱,한송,김영구,Jang, Min-Wook,Han, Song,Kim, Young-Ku The Korean Academy of Orofacial Pain and Oral Medi 1999 Journal of Oral Medicine and Pain Vol.24 No.4
구취를 주소로 내원한 환자 중 구취의 치료 후 객관적인 구취의 감소가 인정되는 데도 불구하고, 계속해서 구취를 호소하며 만족해 하지 못하는 환자들의 심리적 특성을 알아보고자 하였다. 구취를 주소로 서울대학교 치과병원 구강진단과 구취클리닉에 내원하여 검사 및 치료를 시행한 환자 중, 치료 전 객관적 구취의 소견을 보였으나, 치료 후 할리미터 수치의 객관적인 감소를 보이는 40명의 구취 환자를 대상으로 하였다. 치료 전, 모든 환자들은 자신의 주관적 구취 심도 및 그로 인한 불편감 정도를 표시하였고, 간이정신진단검사 (SCL-90-R)를 시행하였으며 할리미터를 이용하여 구강내 휘발성황화합물의 농도를 측정하였다. 치료 후, 구강내 휘발성황화합물의 농도, 주관적 구취 심도 및 불편감 정도를 재측정하였다. 주관적 구취 심도의 감소 정도에 따라 환자들을 두 군으로 분류하여 할리미터 수치와 불편감 정도 및 간이정신진단검사항목을 비교, 분석하였다; A군-주관적 구취 심도가 평균값 이상으로 감소한 환자군; B군-주관적 구취 심도가 평균값 이하로 감소한 환자군. 1. 치료 전후 모두에서 주관적 구취 심도와 휘발성황화합물 농도 사이에는 유의한 상관관계가 없었으며 주관적 구취 심도의 감소 정도 또한 휘발성황화합물의 감소 정도와 상관관계가 없었다. 2. 치료 전 휘발성황화합물의 농도는 치료 후 휘발성황화합물의 감소치와 유의한 상관관계를 보였다 (p < 0.01). 3.구취로 인한 불편감 정도는 주관적 구취 심도와 유의한 상관관계를 보였으며 (p < 0.01), 치료 후 A군에서는 유의하게 감소 (p < 0.01) 하였으나, B군에서는 유의한 감소를 보이지 않았다. 4. B군은 A군에 비하여 간이정신진단검사 항목 중 대인예민성과 우울증의 항목에서 유의하게 높은 수치를 보였다 (p < 0.05).
24개월 이상 선천 코눈물관막힘 환아의 단계적 탐침술을 동반한 단, 상하누소관 실리콘관 효과
염지현,이화,장민욱,백세현,이태수,Jie Hyun Youm,Hwa Lee,Min Wook Jang,Se Hyun Baek,Tae Soo Lee 대한안과학회 2013 대한안과학회지 Vol.54 No.11
Purpose: The clinical effectiveness of monocanalicular or bicanalicular intubation with sequential probing was evaluated in patients over the age of 24 months with congenital nasolacrimal duct obstruction. Methods: Patients over 24 months of age with congenital nasolacrimal duct obstruction who underwent monocanalicular intubation with sequential probing (19 patients, 20 eyes) or bicanalicular intubation with sequential probing (22 patients, 22 eyes) were studied. Success rates and complications were evaluated. Silicone tube was removed 6 months after surgery. Success was defined as no epiphora and no retention on fluorescein dye disappearance test. Results: The success rate was 95.0% (19 eyes / 20 eyes) in the monocanalicular intubation group and complications included 7 cases of early tube dislodgement, which achieved successful outcome. The success rate was 82.6% (19 eyes / 22 eyes) in the bicanalicular intubation group and complications included 4 cases of punctal slitting, and 3 cases of tube extrusion. The success and complication rates were not significantly different between the 2 groups (p = 0.608, p = 1.000, respectively). Conclusions: In congenital nasolacrimal duct obstruction, the monocanalicular tube intubation group had similar success and complication rates to the bicanalicular tube intubation group. Silicone tube maintenance for 2 months in the monocanalicular group and for 3 months in the bicanalicular group was sufficient. J Korean Ophthalmol Soc 2013;54(11):1635-1640
회전익기 요 스웨지드 로드 분할에 따른 비행 안전성에 대한 해석적 접근
임현규,최재형,김대한,장민욱,윤재휘,양필주,Lim, Hyun-Gyu,Choi, Jae-hyung,Kim, Dae-Han,Jang, Min-Wook,Yoon, Jae-Huy,Yang, Pil-Joo 한국항공운항학회 2017 한국항공운항학회지 Vol.25 No.3
As for A rotary wing aircraft, the configuration change about split yaw swaged rod was executed to improve hit treat capability for dealing with a long rod. The purpose of this study was to analyze if or not the quality of the split yaw swaged rod was obtained, and so the flight safety was ensured or not. Buckling analysis, Coupling Thread Strength Analysis, Thermal Stress analysis and Rod Natural Frequency Analysis were executed for structural analysis. The results of the analysis were presented that the split rod had the sufficient margin of safety and so there were no anomalies in the limit load and no failures in the ultimate load. And there were no resonances in result of natural frequency analysis. In conclusion, this study showed that the split yaw swaged rod had structural safety, so flight safety of rotary wing aircraft was secured and there was no problem in aircraft operation. It is certain that the technology of splitting the yaw swage rod will contribute to the operational Safety of the rotary wing aircraft in the future.
한국인에서 연령 및 체질량지수에 따른 윗눈꺼풀 지방의 변화의 분석
안재문,이화,김정완,장민욱,이태수,백세현,Jae Moon Ahn,Hwa Lee,Jung Wan Kim,Min Wook Jang,Tae Soo Lee,Se Hyun Baek 대한안과학회 2013 대한안과학회지 Vol.54 No.4
Purpose: To evaluate differential changes in the central and nasal fat pads of the upper eyelid associated with aging and the effect of body mass index in Koreans. Methods: Using a standardized scale, the volume grade of the central and nasal fat pads was graded from 0 to 3 (0 for depressed, 1 for flat, 2 for mildly protruded, and 3 for markedly protruded) in normal adults, consisting of 20 males and 20 females from 30 years of age to 80 years of age. The body mass index was calculated for every patient through interviews using their height and weight. Statistical evaluations correlating age and body mass index with central and nasal fat pad changes were performed. Statistical evaluations correlating age with fat pad changes except for the effect of body mass index were performed. Results: Except for the effect of body mass index, the central fat pad increased (r = -0.176, p = 0.007) and nasal fat pad decreased (r = 0.252, p < 0.001) with aging, which was statistically significant. Conclusions: With aging, the central fat pad increases and nasal fat pad decreases in the upper eyelid. Clinically, this finding has implications in cosmetic and functional upper eyelid blepharoplasty. In addition, the results may be useful to determine whether to conserve or remove the fat as well as the amount of fat removal during upper blepharoplasty.
누소관 경유 다이오드 레이저를 이용한 내시경적 누낭비강연결 재개통술의 효과
유준호,이화,신형호,이종미,장민욱,백세현.Jun Ho Yoo. MD. Hwa Lee. MD. PhD. Hyung Ho Shin. MD. Jong Mee Lee. MD. Min Wook Jang. MD. PhD. Se Hyun Baek. MD. PhD 대한안과학회 2012 대한안과학회지 Vol.53 No.4
Purpose: To determine the intranasal causes of failed dacryocystorhinostomy (DCR) and the effects of transcanalicular diode laser-assisted revision surgery. Methods: Twenty-four patients (29 eyes) who underwent revision surgery for a failed DCR at the Department of Ophthalmology, Ansan Hospital, Korea University between March 2009 and February 2011 were included in the present retrospective study. The intranasal causes of failed DCR, the time of symptoms such as epiphora and discharge after DCR, success rates of revision surgeries and follow-up periods were evaluated. Results: Membranous obstruction was found in 25 eyes (86.2%) and was accompanied with granuloma in 10 eyes; these were the most common causes of failed DCR. The mean time for symptom development after DCR was 14.6 months, the success rate of the first revision surgery was 82.1% and good results were obtained in 5 eyes after the second revision surgery. Recurrence developed in 2 eyes, but symptoms improved after the lateral tarsal strip procedure. Conclusions: Membranous obstruction was the most common intranasal cause of failed DCR and transcanalicular diode laser-assisted revision surgery produced good results. Additionally, in patients with persistent epiphora following anatomically- patent revisional surgery, lacrimal pump failure due to lower eyelid laxity should be considered and corrected. J Korean Ophthalmol Soc 2012;53(4):493-498