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조상현,박주완,정성근,Sang Hyun Cho,Joo Wan Park,Sung Kun Chung 대한안과학회 2008 대한안과학회지 Vol.49 No.1
`Purpose: To determine the risk factors of corneal ulcers that require eyeball removal even when properly managed. Methods: We performed a retrospective review of 30 patients (30 eyes) who were diagnosed with corneal ulcers and underwent eyeball removal, even though their cases were properly managed, between 1990 and July, 2005. The Patients included of 14 males and 16 females. The mean age of the patients was 61.6±12.2. The ages of 20 patients were between 60 and 79. Results: Unknown (13/30 [43.4%]) was the most commonly identified predisposing factor. The other predisposing gactors were ocular trauma (10/30 [33.3%]); bullous keratopathy (3/30 [10%]); keratoplasty (1/30 [3.3%]); pterygium excision (1/30 [3.3%]); history of Mooren's ulcer (1/30 [3.3%]); and bee sting (1/30 [3.3%]). The visual acuity at the time of evisceration was LP(-) (14/30 [46.7%]); LP(+)(4/30 [13.3%]); and hand motion (12/30 [40%]). Organisms were cultured in 7 patient (23.3%). Among these patients, funguses were cultured in 4 patients, and bacteria were cultured in 3 patients. The most common causes of evisceration were perforation (13/30 [43.3%]); pain (7/30 [23.3%]); impending perforation (7/30 [23.3%]); phthisis bulbi (1/30 [3.3%]); and endophthalmitis (1/30 [3.3%]). Conclusions: According to this study, old age, ocular surface and other ocular disease and the corneal ulcer caused by fungi are the risk factor that can lead to a condition that requires removal of the eyeball. Consequently, we should pay special attention to patients who have these risk factors.`
뾰족 콘딜로마의 임상 양상을 보인 여성의 외음부에 발생한 후천성 국한성 림프관종
이현주 ( Hyun Joo Lee ),김민호 ( Min Ho Kim ),방철환 ( Chul Hwan Bang ),이정덕 ( Jeong Deuk Lee ),조상현 ( Sang Hyun Cho ) 대한피부과학회 2011 大韓皮膚科學會誌 Vol.49 No.1
Acquired lymphangioma circumscriptum of the vulva is a rare benign disease that arises from obstruction of pelvic lymphatic drainage. It most commonly occurs due to surgery, lymphadenectomy and/or radiotherapy for cervical cancer and it may also result from treatment of other tumor or non-neoplastic diseases such as Crohn`s disease or tuberculosis. Epidermal reactive changes due to recurrent infections or stimuli occur in some cases and the vulva lesions can mimic condyloma acuminatum or other viral or fungal infections. Herein we describe a case of acquired lymphangioma circumscriptum of the vulva that mimicked condyloma acuminatum and this all presented 13 years after surgery for cervical cancer in a 71 year old woman. (Korean J Dermatol 2011;49(1):76~78)
이현주 ( Hyun Joo Lee ),김민호 ( Min Ho Kim ),이현종 ( Hyun Jong Lee ),조상현 ( Sang Hyun Cho ),이정덕 ( Jeong Deuk Lee ) 대한피부과학회 2012 대한피부과학회지 Vol.50 No.6
A congenital smooth muscle hamartoma is a rare benign cutaneous abnormality and histologically characterized by smooth muscle hyperplasia with a great number of long and straight bundles of smooth muscle at various angles of the orientation, throughout the dermis. A congenital smooth muscle hamartoma usually presents as a congenital hairy patch or plaque with or without hyperpigmentation on the trunk or extremities. The congenital smooth muscle hamartoma with follicular spotted appearance is a rare clinical variant, and is appeared as a patch with marked follicular papules. Herein, we report a 16-year-old girl with this rare patch follicular variant of congenital smooth muscle hamartoma, on the left upper arm.
노인자색반 환자에서 1% Pimecrolimus 크림의 치료 효과
이현주 ( Hyun Joo Lee ),조은정 ( Eun Jung Cho ),이정덕 ( Jeong Deuk Lee ),조상현 ( Sang Hyun Cho ) 대한피부과학회 2011 大韓皮膚科學會誌 Vol.49 No.2
Background: Senile purpura is characterized by ecchymoses on the extensor surfaces of the forearms and the dorsa of hands in the elderly. The prevalence is around 10% in the eight and ninth decades. Its occurrence is secondary to the fragility of blood vessel walls caused by atrophy of dermal collagen bundles and solar elastosis due to intrinsic aging and photoaging. For prevention of senile purpura, sunscreens and barrier protection should be used. However, there has been no specific medical treatments developed for senile purpura. Objective: The purpose of this study was to evaluate the clinical efficacy of a topical calcineurin inhibitor for the treatment of senile purpura. Methods: Seven patients with senile purpura applied 1% pimecrolimus cream twice daily for 2 weeks. Efficacy was evaluated by the subject`s assessment and by the objective findings using photographic assessment. Results: There was an 8.5% reduction in the purpuric area compared with the initial lesion. When the Wilcoxon signed-rank test was used for determination of the purpuric area between the pre-treatment condition and the post-treatment condition, the therapeutic effect was statistically significant (p=0.004). Three of seven patients (42.9%) were satisfied with their treatment, and four of them (57.1%) were neither satisfied nor dissatisfied. No adverse events were observed during the treatment and follow up periods. Conclusion: This study shows that 1% pimecrolimus cream can be an effective and safe treatment modality for senile purpura. (Korean J Dermatol 2011; 49(2):119~124)
신병주(Byung-joo Shin),김태현(Tae-hyeon Kim),조상현(Sang-hyun Joo) 한국방송·미디어공학회 2020 한국방송공학회 학술발표대회 논문집 Vol.2020 No.11
현재 많은 교육기관에서 활용되고 있는 교수학습지원시스템의 기능 부족과 교육환경에 부합하지 못해 낮은 이용성을 보이는 부분을 보완하여 일반적인 강의 형태를 일반형, 참여형, 실습형 등으로 세분화하여 수업의 형태에 필요한 기능을 개발하여 정적인 수업의 형태에서 교육자와 학생들 사이에 소통할 수 있는 환경을 구성하였고, 더 나아가 PC, 스마트폰, 태블릿 등 다양한 기기에서 접근 및 사용을 할 수 있는 웹을 기반으로 서비스를 제작하여 공간에 제약 없이 교육자와 학생의 효과적인 교육환경을 제공한다. 개발 과정에서 다양한 스타트업에서 이용되는 Django와 많은 사용자가 확보된 Javascript을 이용해 개발 기간 단축하였다. 또한 웹소켓(Websocket)을 이용해 최소한의 데이터 통신으로 빠른 실시간 통신을 구현하였고, 다양한 브라우저에 대응할 수 있도록 웹 표준을 준수하였다. 서버의 경우에는 아마존 웹 서비스(AWS)를 활용하였고, Linux 환경에서 동작 컨테이너화를 통해 보안성을 확보하였다.
이승주(Seung-Joo Lee),송창하(Chang-Ha Song),이만권(Man-Gwon Lee),진민준(Min-Jun Jin),조상현(Sang-Hyun Joo) 한국방송·미디어공학회 2020 한국방송공학회 학술발표대회 논문집 Vol.2020 No.11
캡스톤 기업 연계형의 과제로 드론 교육에 쓰이는 시뮬레이션을 대체할 드론 교육 게임을 제작한다. 교육생의 입장에서 시뮬레이션은 복잡하고 지루하기 때문에 다양한 교육과 정보, 재미있는 콘텐츠를 담은 드론 게임을 만들어 스스로 학습을 진행하게 하는 것이 목표이다. 제작에 앞서 먼저 연구된 시뮬레이션과 게임을 통해 어떤 문제로 상용화가 되기 힘이 들었는지 조사했다. 재미있는 콘텐츠를 제공해 드론 기초 조작을 쉽게 학습할 수 있도록 유도했지만 교육생들이 실제 드론을 어떤 컨트롤러로 조작하는가에 대한 조사가 미흡했다. 이를 해결하기 위해서 필요한 학습 콘텐츠를 설계하고 교육생들이 소지한 드론 컨트롤러로 체험을 할 수 있도록 구현했다.
전희진 ( Hee Jin Jun ),이현주 ( Hyun Joo Lee ),조유진 ( Eujin Cho ),조상현 ( Sang Hyun Cho ),이정덕 ( Jeong Deuk Lee ) 대한피부과학회 2012 大韓皮膚科學會誌 Vol.50 No.10
Coral is a member of the class Anthozoa, which cause injury due to stings from their tentacles containing nematocytes or from their sharp-edged calcified outer skeletons. Sting from their nematocytes may cause coral poisoning and cause a rare type of contact dermatitis. A 24-year-old woman, who had been contacted to coral during skin-scuba diving in the Philippines 7 days before, was presented with multiple brownish plaques and patches with small vesicles on the dorsum of the left hand. Herein, we report a case of contact dermatitis to coral by the nematocyst stings of corals.