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Sensory Restoration of Abdomen after Free TRAM Flap for Breast Reconstruction
성건용,안희창,황원중,조동인,Sung, Kun Yong,Ahn, Hee Chang,Hwang, Weon Jung,Jo, Dong In 대한성형외과학회 2005 Archives of Plastic Surgery Vol.32 No.1
The purpose of this study is to assess abdominal sensation after free TRAM flap for breast reconstruction. 74 patients underwent breast reconstruction with free TRAM flap by authors and were followed up to check the sensation on abdomen following the surgery at the out patient clinic. They are compared with 20 female volunteer controls. Abdomens were divided into 13 zones, and assessed for superficial touch, superficial pain, temperature, two-point discrimination, and vibration. For all five sensory modalities, subjects were found to have decreased sensation in the umbilical and infraumbilical regions. This was statistically significant compared with controls. Division following pedicle dissection showed more reduction of sensation than non-dissection side. Both Inguinal areas below the donor site closure also showed markedly decreased sensation. Sensation on most area of abdomen recovered in postoperative 1 year, however, there were remained hypoesthesia in umbilical and infraumbilical area after post operative 1 year. This study clearly demonstrates that there is a significant and persistent reduction in abdominal sensibility following free TRAM flap surgery.
평면배향된 a-축 수직 $YBa_2Cu_3O_{7-x}$ 고온초전도 박막의 제작
성건용,서정대 한국세라믹학회 1996 한국세라믹학회지 Vol.33 No.3
We have fabricated an in-plane aligned a-axis oriented YBa2Cu3O7-x (a-YBCO) thin film on a LaSrGaO4(100) substrate with a PrBa2Cu3O7-x(PBCO) template layer by two step plused laser deposition using 308 nm XeCl excimer laser. A YBCO layer and PBCO layer grown at low temperatures were used as template layers. We have investigated the effect of the deposition temperature of template layers on the superconducting and struc-tural properties of in-plane aligned a-YBCO thin films. An optimal deposition temperature of the PBCO template layers was 630. In-plane aligned a-YBCO thin films showed an anisotropy ratio in resistivity of 11.5 and a zero resistance temperature of 88 K.
성건용,박찬우,김경현,양종헌,Sung, G.Y.,Park, C.W.,Kim, K.H.,Yang, J.H. 한국전자통신연구원 2009 전자통신동향분석 Vol.24 No.5
정보통신망을 이용하여 언제 어디서나 모든 사람이 의료서비스를 제공받을 수 있고, 나아가서는 생활관리서비스를 제공하는 유비쿼터스 건강관리 사회를 구현하기 위하여 생체정보 센서, 생체정보 모니터링, 데이터 분석, 피드백 등의 4가지 핵심기술에 대한 개발이 진행되고 있다. 본 고에서는 현장진단이 가능한 바이오센서 기술에 대한 개요와 국내외 기술개발 동향 및 특허 동향을 분석하고 향후 현장진단용 바이오센서 시장에 대하여 전망하고자 한다.
Closed Irrigation System for Wound Management of Complicated Ischial Pressure Ulcers
성건용,이상열 대한창상학회 2021 Journal of Wound Management and Research Vol.17 No.1
In patients with complicated ischial pressure ulcers, surgical repair is often delayed until the general condition of the patient improves, and in extremely ill patients, surgery might never be performed. Since deep ischial ulcers are usually associated with a profuse discharge, large sinus cavity, and are adjacent to the anus, maintaining effective dressing is challenging for surgeons. In order to manage such ischial ulcers, we devised a closed irrigation system using the Barovac (50–90 mmHg) wound drainage device and a saline infusion set. The system was applied to a 50-year-old paraplegic man who was diagnosed with impending sepsis due to a longstanding ischial ulcer with secondary infection. Using the saline infusion set, we infused 200 mL of saline into the ischial cavity every 6 hours in the ward. After a 10-minute dwell time, the fluid in the cavity, including the exudate and wound debris, was drained continuously through the wound drainage device. This system was very helpful in keeping the patient’s ischial wound clean until his general condition improved and surgical repair could be undertaken. We therefore believe that our closed irrigation system provides an effective, convenient, and inexpensive dressing method for patients with complicated ischial wounds.
ZnO-Bi2O3계의 소결초기단계와 입자성장에 관한 연구
성건용,강을손,김종희 한국세라믹학회 1989 한국세라믹학회지 Vol.26 No.4
The sintering behavior and grain growth of ZnO in 99.0mol% ZnO-1.0mol% Bi2O3 which are the basic compositions of ZnO varistor were studied. The microstructrual observation confirmed that the final sintered density was mainly determined at the initial stage of sintering, i.e. grain rearrangement and grain growth which were induced by the penetration of eutectic melts formed at eutectic temperature(74$0^{\circ}C$). But when the liquid penetration was terminated, the grain growth did not promote further densification. Activation energy of the grain growth of ZnO in the system of 99.0mol% ZnO-1.0mol% Bi2O3 was 44.8$\pm$1.8Kcal/mol.
성건용,전명곤,안희창 대한성형외과학회 2004 Archives of Plastic Surgery Vol.31 No.5
Blow-in orbit fracture is relatively rare fracture which is an inward displacement of the orbital rim or wall fragment, resulting in decreased orbital volume. The objective of this article is to analyze blow-in fracture status of orbit and to suggest appropriate management in this unusual fracture. The study included 23 cases who had treatment of blow-in fractures of orbit from July, 1995 to June, 2001. Their ages ranged from 4 years to 63 years. There were 17 males and 6 females. The diagnosis of blow-in fracture was accomplished with physical examination, ophthalmologic examination, plain X-ray, and facial CT scan. According to Antonyshyn's classification, we classified them into 2 large groups which were pure type and impure type. Pure type blow-in fractures are relatively uncommon and 5 cases were documented in a series of 23 patients. Impure type fractures included the orbital rim and 18 cases were documented. Clinical symptoms of blow-in fractures were proptosis, limitation of eyeball movement, diplopia, blepharoptosis, subconjunctival hemorrage and blindness. 2 patients with globe rupture and blindness underwent enucleation due to direct injury by bony segment. We conclude that early and appropriate surgical treatment with complete examination is very important to prevent blepharoptosis, proptosis, limitation of eyeball movement and optic nerve compression. However, when globe rupture and blindness by direct injury of bony segment happened, the operation of enucleation was needed in this particular case.