관상동맥 시술 도중 발생한 좌주간부 관상동맥 박리에 대한 스텐트 삽입 치료의 단장기 임상 결과 : acute and long-term results

이세환,이승환,홍명기,김영학,이철환,한기훈,송종민,강덕현,송재관,김재중,박성욱,박승정 대한내과학회 2004 대한내과학회지 Vol.66 No.6

목적 : 심도자 사용 시술과 관련된 좌주간부 관상동맥박리에 대한 적절한 치료는 아직 확실히 정립되지 않은 상태이다. 이에 본 연구는 좌주간부 관상동맥 박리에 대한 스텐트 삽입술의 단장기 임상결과를 후향적으로 분석하였다. 방법 : 좌주간부 관상동맥 박리에 대한 치료로 즉각적인 스텐트 삽입술을 시행하는 것이 안전하고 효과적인 방법임을 가설하였고, 이러한 즉각적인 스텐트 삽입을 시행한 10명의 환자를 대상으로 단장기적 임상경과를 의무기록 고찰과 전화 면담을 통해서 평가하였다. 결과 : 전체 환자 모두 처음부터 좌주간부 관상동맥에 유의한 협착을 가진 환자는 없었으며, 8명의 환자는 심도자의 조작으로 인한 박리가 발생한 경우였고(진단적 혈관 조영술 중에 3명, 유도 도자 조작 중에 5명), 나머지 2명은 다른 병변에 스텐트 삽입시술을 하는 중에 박리가 발생하였다. 이 10명의 환자에서 모두 즉각적인 스텐트 삽입술이 시행되었고, 4명의 환자에서 시술 도중 혈압 저하로 Intra-aortic Ballon Pump (IABP)를 장착하였다. 모든 환자에서 성공적으로 스텐트가 삽입되었고, 병원내 사망은 1명도 없었다. 6개월 추적 관상동맥 조영술은 8명의 환자에서 시행되었다. 혈관 조영상의 재협착(직경 협착 50% 이상)은 8명 모두에게서 관찰되지 않았으며, 퇴원 후 평균 31±25개월의 추적관찰 결과 주요 심장사건은 1건도 발생하지 않았다. 결론 : 비록 대상 환자가 적은 연구였지만 좌주간부 관상동맥 박리에 대한 스텐트 삽입술은 기술적으로 안전하고 빠르게 시행 할 수 있으며, 훌륭한 단장기적인 치료 효과를 보여준다. Background : The optimal treatment of patients with left main coronary artery (LMCA) dissection during catheter-based procedure remains uncertain. We retrospectively analyzed the acute and long-term results of bail-out stenting for LMCA dissection. Methods : In cases with significant LMCA dissection occurring during catheter-based procedure, prompt stent implantation may be safe and associated with favorable clinical outcome. We evaluated the acute and long-term results of bail-out stenting for LMCA dissection occurring during catheter-bases procedure in 1- patients. Results : Initially, there was significant stenosis of LMCA segment in these patients. Catheter-induced dissection occurred in 8 patients (during diagnostic angiography in 3 patients and guiding catheter manipulation in 5 patients). Two patients suffered dissection in the setting of stent deployment in other vessels. Therefore, bail-out stenting LMCA dissection was performed in a total of 10 patients. In 4 patients, hypotension developed and intra-aortic balloon pump was placed during procedure. Stents were successfully deployed in all patients. There was no in-hospital mortality. Six-month angiographic follow-up was performed in 8 patients. Angiographic restenosis(diameter stenosis 50%) was not observed in all patients at follow-up study. During a mean follow-up of 31±25 months after hospital discharge, there was no major adverse cardiac event (death, myocardial infarction, and target lesion revascularization). Conclusion : Bail-out LMCA stenting is technically feasible, and showed good acute and long-term results in a small series of patients.

병식 평가 척도-한국판(SUMD-K)의 신뢰도와 타당도 검증

송지영,김기태,이서경,김용희,노준호,김종우,장환일,반건호,강원섭 大韓神經精神醫學會 2006 신경정신의학 Vol.45 No.4

Objectives : This study was conducted to evaluate the reliability and the validity of the Korean version of the Scale to Assessment Unawareness of Mental Disorder (SUMD-K). Methods : The subjects were 55 schizophrenic patients between ages of 26 and 58 who were recruited from the psychiatric unit of the university hospital and the out-patient clinic. The SUMD-K and insight scale of PANSS were applied to the patients. Results : The range of inter-rater (Spearman's rho) of the general items of SUMD-K were .97-.98 on the current illness and .58-.98 on the past illness. The correlation coefficient between the sum and the general items of the SUMD-K showed high scores. The concurrent validity between SUMD-K and insight item of PANSS was high (scores between .59-.96). However,the reliability and the validity of the attribution items of symptoms showed low scores compared to the current symptoms. Conclusion : The SUMD-K was confirmed in its reliability and validity. It can be a useful clinician-rating scale for evaluating insight in schizophrenic patients as well as patients with other neuropsychiatric conditions.

비만을 동반한 위암 환자에서 두 병을 같이 수술 치료한 경험(증례)

최경현,윤기영,문형환,신연명,서경원,안수미,송윤미,석정희,정경연,이은하 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.3

Obesity is growing problem in Korea. We had a case of bariatric surgery during gastric cancer operation. Patient was 29 year old Korean lady with early gastric cancer located in the lesser curvature side of the middle 1/3 of the stomach. Her body weight was 89 kg, height 163 cm, and thus body mass index was 33.5 kg/m2. Preoperative blood pressure was 130/90 mmHg, hemoglobin 12.9 g/dL, total lymphocyte count 3,280/mL, serum albumin 4.3 g/dL, CEA 1.1 ng/mL, CA 19-9 9.1 ng/mL, and alpha fetoprotein 2 ng/mL. Another associated disease was right thyroid follicular neoplasm. The chest X-ray was normal. After IM injection of 2,500 units of heparin 30 minutes before the induction of general anesthesia, she received curative subtotal gastrectomy and Roux en Y gastrojejunostomy when a malabsorption loop of 120 cm jejunum was incorporated between the Treitz ligament and the end to side jejuno-jejunostmy site at May 29th 2006. Her postoperative course was uneventful except a minor wound seroma and the elevations of serum amylase(up to 4 folds) and lipase(up to 2 folds). She lost her body weight 9 kg in 5th, 21 kg in 7th, and 27 kg in 10th postoperative months to became 61.5 kg. On follow up exams in July 2008, she gained 4 kg to overcome her weakness and fatigue. From the above result, the incorporation of a malabsorption loop during reconstruction phase of gastric cancer operation was a good option for obese gastric cancer patients especially in cases of early gastric cancer.

유도전동기의 속도검출에 관한 연구

최창주,송환기 조선대학교 에너지.자원신기술연구소 2000 에너지·자원신기술연구소 논문지 Vol.22 No.1

The instantaneous speed measurement method using a three phase sinusoidal encoder is described in this paper. The proposed method can easily detect the AC motor speed by using that the encoder is directly proportional to the AC motor speed. The performance of proposed method is confirmed by experiment results using speed detection. For the high accuracy of the optimum control system. AC motor speed detection is designed and proposed.

청소년에서 폭력에의 노출과 관련된 정신의학적 증상

김동기,이호분,민성길,송동호,육기환,전여숙 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.2

서울 시내 중학생 1345명을 대상으로 폭력에 노출되는 정도와 이와 연관된 정신의학적 증상을 알아보고자 하였다. 이를 위해 자기보고식 설문지를 사용하였는데. 설문지의 내용은 사회인구학적 자료와 집. 학교, 동네에서 폭력을 당하거나 목격했는지를 묻는 문항과 폭력에 의한 정신의학적 증상의 정도를 묻는 TSC(trauma symptom checklist)로 구성되었으며, 그 결과는 다음과 같다. 1) 전체 학생 중 45%가 폭력에 노출된 경험이 있었으며. 남자가 여자보다 많았다 (p<0.025). 집에서 구타 당한 경험은 여학생이 22.8%로 남학생보다 유의하게 높았다 (p<0.001). 학교. 동네에서 구타당한 경험은 남학생이 각각 22.1%. 10.1%로서 여학생보다 유의하게 높았다. 2) TSC를 요인 분석한 결과 불안-우울, PTSD, 해리, 분노 증상으로 나뉘었다. TSC는 폭력 경험 변인들과 상관 관계를 나타냈다. 다중 회귀분석을 실시한 결과 TSC와 연관된 폭력 노출 변인은 일생 동안의 폭력 노출(R²=0.18). 최근의 성폭력 경험(R²=7.12). 최근 집에서의 폭력 경험(R²=0.08), 최근 학교에서의 폭력 경험(R²=0.08), 최근 집에서의 폭력 목격(R²=0.07). 모든 종류의 폭력 노출(R²=0.29)로 나타났다. 3) TSC와 유의하게 연관된 사회인구학적 변인은 여성, 물질 남용의 가족력이 있는 경우, 술이나 담배 약물 남용을 하는 청소년인 것으로 나타났다. 따라서 청소년 폭력에의 희생자에 대한 정신의학적 개입에는 이러한 위험인자에 대한 고려가 필요하리라고 본다. In this research, we examined the frequency of exposure to violence in the home, school and neighborhood among middle school students as well as its related psychiatric symptoms. A total of 1,345 students from 5 middle schools in Seoul participated in this study : 670 were male,675 were female. We administered self-reported questionaires including discriptions of exposure to violence and a trauma symptom checklist(TSC)(Singer 1995). 1) The total frequency of exposure to any type of violence was 45% in our sample. The frequency of girls' being hit in home was 22.8%, which was significantly higher than it was for boys(p<0.001). The frequency of boys' exposure to violence in school and in the neighbor-hood was 22.1% and 10.1% respectively, which was higher than it was for girls(p <0.005). 2) In factor analysis of TSC, 4 factors were identified. TSC including depression-anxity, PTSD, dissociation and anger was correlated with violence exposure variables. Multiple regression analysis revealed that TSC is related with violence victimization in life(R2=0.18), sexual assault(R2= 0.12), recent victimization in the home(R2= 0.08), recent witness to violencein the home(R2=0.07), recent victimization in school(R2=0.08) and all violence exposures(R2=0.29). 3) Among the demographic variables, sex, parental alcohol problem and student alcohol-smoking-drug problems influenced the TSC(p <0.005). TSC could be result of witness to violence as well as violence victimization. And the risk factors for violence-related psychiatric symptoms were mainly seen in females, who have parents with alcohol problems or who themselves have alcohol-smoking-substance problems. So intervention programs for violence victims should be focused on the these high risk group.

서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)

김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2

Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.

인천 인현동 호프집 화재 피해자 분석

최정태,안무업,안희철,최영미,정재봉,서정열,유기철,이삼우,박석현,조준휘,김성환,김아진,송근정 대한응급의학회 2001 대한응급의학회지 Vol.12 No.4

Purpose : This study was conducted to develop field triage, transportation, distribution, and prehospital care at a fire disaster by analyzing the victims of the fore that broke out at a bar in Incheon. Method : We analyzed the cases of the victims of a fire in Incheon in Oct. 1999. We determined the primary care hospital, the arrival time, the burn size, the outcome, and the injury type from the medical records, the concerned organ records, and interviews with concerned persons. Result : The total number of victims was 137: 56 prehospital deaths, 1 hospital death, and 80 survivals. The Pearson correlation coefficient between the burn size and the severity was -0.175. There were 121(89.6%) cases of inhalation injury, 59 (43.7%) cases of flame burns, 66 (48.9%) cases of hypoxic brain damage, and 16 (11.9%) cases involving other types of injury. Conclusion : The causes of death of the fire victims were inhalation injury and hypoxic brain damage due to CO poisoning and other toxic inhalants. We propose the use of a simple triage and rapid treatment(START) system and a reassessment the delayed category in fire disasters.

0.15μm Gate Length nMOSFETs with Indium Implanted Channel

Ki Whan Song 대한전자공학회 1996 KITE JOURNAL OF ELECTRONICS ENGINEERING Vol.7 No.4

SET/CMOS hybrid process and multiband filtering circuits

Song, Ki-Whan,Lee, Yong Kyu,Sim, Jae Sung,Jeoung, Hoon,Lee, Jong Duk,Park, Byung-Gook,Jin, You Seung,Kim, Young-Wug Institute of Electrical and Electronics Engineers 2005 IEEE transactions on electron devices Vol.52 No.8

We have developed an integration technology for the single electron transistor (SET)/CMOS hybrid systems. SET and CMOS transistors can be optimized without any possible degradation due to mixing dissimilar devices by adopting just one extra mask step for the separate gate oxidation (SGOX). We have confirmed that discrete devices show ideal characteristics required for the SET/CMOS hybrid systems. An SET shows obvious Coulomb oscillations with a 200-mV period and CMOS transistors show high voltage gain. Based on the hybrid process, new hybrid circuits, called periodic multiband filters, are proposed and successfully implemented. The new filter is designed to perform a filtering operation according to the periodic multiple blocking bands of which a period is originated from the SET. Such a novel function was implemented efficiently with a few transistors by making full use of the periodic nature of SET characteristics.

분산분석에 의한 SPICE 심사의 신뢰성 검증 모델 설계의 사례연구

송기원(Ki-Won Song),박정환(Jeong-Whan Park),이경환(Kyung-Whan Lee) 한국정보과학회 2003 한국정보과학회 학술발표논문집 Vol.30 No.2Ⅱ

수준 높은 소프트웨어의 품질과 개발, 유지보수 비용의 최소화, 제품 출하시간의 단축을 위하여 소프트웨어 프로세스에 대한 예측, 통제 가능성을 증가시키기 위함이다. 기업이 최고도의 높은 수준에 도달하기 위해서는 정량적인 모델에 의한 프로젝트 관리가 필요하다. 따라서 기업들은 SPICE / CMM와 같은 표준을 사용하여 조직의 프로세스 능력 수준을 평가하고 수준향상을 꾀한다. 조직의 프로세스의 능력을 평가하고 수준향상을 위해서는 신뢰성 있는 SPICE 심사의 심사결과에 대한 객관적인 신뢰성이 보장과 좀더 적은 비용으로 프로세스의 수준향상을 할 수 있는 방법이 필요하다. 본 논문에서는 SPICE 심사의 신뢰성을 얻기 위해 CMM/KPA 설문서를 통해 심사하고 SPICE심사의 결과를 비교 분석하여 SPICE심사의 신뢰성을 검증한다. 또한 이를 기반으로 CMM/KPA 설문서의 정량적인 모델을 제안함으로서 좀더 적은 비용과 시간으로 SPICE 심사의 결과와 같은 효과를 얻을 수 있게 한다.