Comparison of the complications arising after superficial temporal artery-middle cerebral artery anastomosis in adult moyamoya disease and atherosclerotic disease

김용찬,Seung Hyun Kim,방재승,황교준,권오기,오창완 대한뇌혈관외과학회 2010 Journal of Cerebrovascular and Endovascular Neuros Vol.12 No.3

Objective : To assess the results of superficial temporal artery-middle cerebral artery anastomosis (SMA) in atherosclerotic disease (ASD) and in adult moyamoya disease (MMD) by comparing the complications that arise. Methods : We retrospectively reviewed patients with ASD or adult MMD treated by means of SMA, between December 2000 and December 2006, at our neurovascular center. During this period, we performed 115 SMAs on 108 patients: 61 on ASD patients (61 SMAs; the ASD group) and 47 on adult MMD patients (54 SMAs; the MMD group). Results : We found a higher incidence of postoperative 1 month neurological deficits (P1NDs) and a lower incidence of transient neurological deficits (TNDs) in the MMD group than in the ASD group (p-value=0.047). Patients with a preoperative stroke (cerebral infarction/hemorrhage) history were more likely to develop P1ND than were the patients with a preoperative history of transient ischemic attack (TIA), in both the ASD (p-values=0.012 and 0.033, respectively) and MMD groups (p-values=0.000 and 0.015, respectively), regardless of overall patients (n=108) and single SMA group (n=62). Delayed seizure (seizure occurring > 1 month after SMA) occurred only in 8 MMD patients (8/47, 17.0%; p-value=0.003) out of all 108 patients and in 2 patients (2/10, 20%, p-value=0.014) out of the single SMA group. Major morbidity at the final follow-up period (Karnofsky performance scale (KPS)≤70) was 6.4% (3 patients) in 47 MMD patients and 0% in 61 ASD patients. Minor morbidity ( 80≤KPS≤90) was also 6.4% (3 patients) in 47 MMD patients and 1.6% (1 patient) in 61 ASD patients. Conclusion : The present study suggests that, in both ASD and MMD, the presence of preoperative stroke (infarction) correlated strongly with the postoperative P1ND. In addition, it may also be suggested that complex and protracted surgical modalities may have influences on the incidence of P1ND. Furthermore, we found that only MMD patients experienced delayed seizure attacks after SMA, and we think this may be related to the delayed formation of angiogenesis, which may increase irritation to cortex. (Kor J Cerebrovascular Surgery 12(3):182-189, 2010)

망기색에 대한 연구

김용찬,강정수,Kim, Yong-Chan,Kang, Jung-Soo 대한동의생리학회 2005 동의생리병리학회지 Vol.19 No.3

This study was written in order to help understanding of visible diagnosis of energy and color(기색). Visible diagnosis of energy and color is a very important factor of diagnosis and a necessary step of visible diagnosis. As human's body is under the control of spirit(신) and spirit(신) is stored by five viscera(오장), so spirit expresses the change of five viscera and is reflected by energy and color(기색). Strictly speaking, energy and color(기색) is not divided into each other. But, we can say that glittering glossy part belongs to energy(기) and blue, red, yellow, white and black part belongs to color(색). Various changes of energy and color(기색) observe the rules of yin-yang(음양). If we consider the interior and exterior(내외), top and bottom(상하), right and left(좌우), rise and fall(부침), clearness and muddiness(청탁), weak and severe(미심), spread and gather(산박), gloss and dness(택요) etc. we can decide the yin and yang(음양), inside and outside(표리), coldness and heatness(한열), truth and false(허보), life and death(생사) and prognosis. One man's own color is determined by the five human type(오형인), There are very various points of changing colors. As divided into principal groups, there are three main groups, that is, sky(천), earth(지) and man(인). A season(사시), day and night(주야) and cloud and clear(음청) belong to the factor of sky(천), a direction and configuration of the ground(지형) belong 治 the factor of earth(지), and motion and rest(동정), seven emotions(칠정), age and youth(노소), poor and rich(빈부) and high and low(귀천) belong to the factor of man(인).

보일러 튜브 잔존수명 평가

김용찬,Kim, Yong-Chan 한국열병합발전협회 2009 열병합발전 Vol.72 No.-

냉동공조용 대체냉매의 선정 및 적용시의 문제점과 대책

김용찬,Kim, Yong-Chan 선박안전기술공단 1994 漁船 Vol.59 No.-

냉동공조용 대체냉매의 선정 및 적용시의 문제점과 대책(II)

김용찬,Kim, Yong-Chan 선박안전기술공단 1994 漁船 Vol.60 No.-

복합화력 Condenser Receiver Tank 배출증기 회수관련 설비개선

김용찬,Kim, Yong-Chan 한국열병합발전협회 2007 열병합발전 Vol.60 No.-

수술 후 마비성 동공 산대를 유발하는 원인 분석 및 분류

김용찬,나종경,김만수,Yong Chan Kim,Jong Kyung Na,Man Soo Kim 대한안과학회 2015 대한안과학회지 Vol.56 No.1

Purpose: To seek for mechanisms to prevent fixed dilated pupil including Urrets-Zavalia syndrome after intraocular surgery by analyzing and classifying the causes of such cases. Methods: Medical records and anterior segment photographic images of patients with fixed dilated pupil who underwent penetrating keratoplasty, lamellar keratoplasty, or cataract surgery were analyzed in a retrospective manner from April, 1984 to February, 2014. Results: Among 15 cases of postoperative fixed dilated pupil, 8 eyes of keratoconus eyes had received penetrating keratoplasty done and 7 eyes with ocular disorders other than keratoconus underwent intraocular surgeries. In cases 1 and case 2, which received penetrating keratoplasty for keratoconus, dilated pupil with regular pupil border, iris atrophy, and secondary glaucoma occurred; these cases were classified as group 1 and diagnosed as Urrets-Zavalia syndrome. Cases from 3 to 8 which also received penetrating keratoplasties due to keratoconus, irregularly dilated pupil, severe iris atrophy, posterior synechiae after moderate to severe inflammation in the anterior chamber, and fibrotic membrane on the anterior capsule occurred; these cases were classified as group 2. Finally, cases 9 to 15, which had mild inflammation, no fibrotic membrane, and regularly fixed dilated pupil after receiving other intraocular surgeries were classified as group 3. Conclusions: Differences exist between definite Urrets-Zavalia syndrome and postoperative fixed dilated pupil with regards to regularity of pupillary margin, degree of iris atrophy, posterior synechiae, fibrotic membrane, and posterior subcapsular opacity. Therefore, a new classification of fixed dilated pupil after intraocular surgery which addresses these characteristics is required and various trials to prevent the adverse postoperative complications of fixed dilated pupil should be performed. Preventive measures may include careful control of intraocular pressure, restricting atropine use, completely removing of viscoelastics, and minimal air or gas injection. J Korean Ophthalmol Soc 2015;56(1):47-54

가스냉방 보급정책 및 지원제도

김용찬,Kim, Yong-Chan 대한설비공학회 2006 설비저널 Vol.35 No.2

제5 중족골 기저부 견열 골절의 수술적 치료

김용찬,정환용,조성진,김용상,조성권,Kim, Yong-Chan,Chung, Whan-Yong,Cho, Seong-Jin,Kim, Yong-Sang,Jo, Sung-Kwun 대한족부족관절학회 2004 대한족부족관절학회지 Vol.8 No.1

Purpose: To analyze the clinical and radiological results of the operative treatment in the avulsion fracture on the base of the fifth metatarsal. Materials and Methods: We studied retrospectively, 11 patients of avulsion fracture on the base of the fifth metatarsal operated and followed over 1 year, from February 2000 to May 2002. There were eight men and three women and the average age was 39 years old. The mean follow up period was 14 months. Ten cases were slip-down and one case was fall from a height injuries. We used the modified Foot Score by Wiener for the clinical evaluation, and analyzed the time of union and state of reduction radiologically. Results: In clinical results, we had ten excellent and one good cases by the modified Foot Score at last follow-up. In radiologic results, the complete bony union was achieved in all cases and the duration of the bony union was 37 days in average. Conclusion: We had good result for the avulsion fractures on the base of the fifth metatarsal treated by the operation. This study shows the operation was recommended for the moderate and severe displacement of the avulsion fractures on the base of the fifth metatarsal.

ESCO Column 1 - 건물에너지관리시스템(BEMS) 특성 및 기술개발 동향

김용찬,Kim, Yong-Chan 에너지절약전문기업협회 2011 esco Vol.69 No.-

우리나라에서 사용하는 총에너지의 97%를 해외에 의존하고 있으며, 총에너지의 약 30%를 건물에서 소비하고 있다. 건물에서의 에너지절약 및 효율적 관리가 우리나라 정책방향인 저탄소 녹색성장에 크게 기여하리라는 것은 쉽게 예측할 수 있다. 최근 국내에서 건물의 효율적인 관리를 위하여 BEMS(Building Energy Management System)가 도입되고 있는 실정이다. 본고에서는 저탄소 녹색성장에 기여할 수 있는 건물에너지관리시tm템인 BEMS의 기술개발 현황과 그 동향에 대해 알아보기로 한다.