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임신시에 발생한 급성호흡곤란증후군을 동반한 한국형 출혈열 1 예
김용욱(Yong Yook Kim),남궁성은(Sung Eun NamKoong),최은(Eun Choi),김미란(Mee Ran Kim),노덕영(Duck Yeong Ro),최옥춘(Ok Choon Choi),노승혜(Seung Hye Rho),김태응(Tae Eung Kim),정재근(Jae Keun Jung) 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.7
Hantavirus infection occuring during pregnancy is rarely progressing to adult respiratory distress syndrome (ARDS), which is accompanied by thrombocytopenia, leukocytosis, fever, oliguria, aggravation of bleeding, hematuria, lactacedemia. Pregnancy may have an unfavorable impact on the pathophysiologic characteristics of ARDS. The high oxygen demands of pregnancy are unable to be matched by oxygen delivery in ARDS and may predispose the patient to multiple organ failure, as well as fetal oxygen deprivation. We present the case with hantavirus pulmonary syndrome complicating pregnancy.
소프트 골프 클럽을 이용한 스윙 동작 분석에 관한 연구
김용욱(Yong-Yook Kim),김경(Kyung Kim),노방환(Bang-Hwan No),권대규(Tae-Kyu Kwon),홍철운(Chul-Un Hong),김남균(Nam-Gyun Kim) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.11
The purpose of this study is to analyze swing motion with soft golf clubs and compare with that with normal golf clubs. The subjects were normal healthy adults, who performed swing motion using a normal golf club and a soft golf club in turn. The swing motion of the subjects was tracked using a 3D motion analysis system by Ariel Dynamics Inc. The displacement, the velocity and the acceleration of shoulder, hip, knee and wrist area were recorded. The pattern of swing motion with soft golf club was similar to that with normal golf club. However, we were able to distinguish different characteristic swing patterns in both cases.
김용욱(Yong Yook Kim),김석영(Suk Young Kim),황병철(Byung Chul Whang),이종민(Jong Min Lee),최유덕(Yu Duk Choi),한양석(Yang Seok Han),이지성(Ji Sung Lee),노성혁(Seong Hyeok Noh),김장수(Jang Su Kim),최태행(Tae Haeng Choi),최용민(Yong Mi 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.7
Objective : To study the prevalence, indications, and outcome of cesarean hysterectomy in women delivered at the Gil Medical Center, Gacheon Medical School. Method : This is a retrospective study of all cases of cesarean hysterectomy performed between January 1995 and December 1999. Results : The incidence of cesarean hysterectomy was 0.4% (122/31,481). Cesarean hysterectomy was performed in 100 of 17,829 cesarean sections (0.6%) and in 22 of 13,652 vaginal deliveries(0.2%). The higher the age and the parity of patients, the higher the incidence of cesarean hysterectomy was noted. The most common indication of cesarean hysterectomy was uterine atony(50 cases, 41.9%), followed by 25 cases of placenta previa with adhesive placenta(20.5%), 14 cases of adhesive placenta(11.5%), 11 cases of uterine myoma with pregnancy(9.0%), 9 cases of uncontrolled bleeding with placenta previa(7.4%), 7 cases of uterine rupture(5.7%) and 6 cases of extension of uterine incision(4.9%). All patients who had cesarean hysterectomy received transfusion from 0 pint to 78 pints. Live births were 115 cases(94.3%) and 3 infants were still birth(2.5%). Four infants were dead during early neonatal period(3.3%), so perinatal mortality rate was 5.7%. The postoperative complications were bladder injury, ureteral injury, febrile morbidity, disseminated intravascular coagulopathy, hematoma, wound disruption, postpartum cardiomyopathy, and vaginal stump bleeding. There was two maternal deaths due to acute, severe hemorrhage and DIC. Conclusion : Cesarean hysterectomy remains a necessary procedure for life saving during abdominal and vaginal deliveries. The procedure itself is usually associated with considerable perioperative morbidity. Obstetricians should identify patients at risk and anticipate the procedure and complications.
배양된 제대정맥내피세포에서 중증자간전증환자 혈청이 내피세포 생육 및 Endothelin-1합성에 미치는 영향
김용욱(Yong Yook Kim),나욱렬(Wook Yull Na),이종건(Jong Kun Lee),이영(Young Lee),백은정(Eun Jeong Baik),나종구(Jong Gu Rha),김사진(Sa Jin Kim),이형근(Hyung Gun Lee),신종철(Jong Chul Shin),김수평(Soo Pyung Kim) 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.7
Objectives: In order to assess the effects of sera from severe preeclamptic patients on endothelial cell viability in vitro and endothelin-1 synthesis in cultured human umbilical vein endothelial cells.Methods: The cultured human umbilical vein endothelial cells were incubated with media containing 10% sera from women with either preeclamptic patients or normal pregnancies for 24 hours or 48 hours. After then, their viability was measured by colorimetric MTT{3-(4,5-dimethylthiazol-2yl)2,5-diphenyl tetrazolium bromide} assay and their production of endothelin-1 was measured. We also measured the serum levels of endothelin-1 level in sera obtained from the normal and severe preeclamptic pregnancies. Results: The calorimetric MTT assay revealed that after 24 hours, the absorbances in the media treated with normal pregnancies and severe preeclampsia sera were 0.0718±0.0078 and 0.0837±0.0129, respectively and after 48 hours, they were 0.1133±0.0103 and 0.1268±0.0186, respectively. Serum obtained from severe preeclampsia did not affect endothelial cell viability. 2. The serum mean levels of endothelin-1 in normal and severe preeclamptic pregnancies were 22.66±8.6 fmol/ml and 48.98±25.27 fmol/ml. The mean level in preeclamptic sera was significantly higher than that of normal pregnant women. (P<0.05) 3. After 24 hours, the mean amount of endothelin-1 stimulated by normal pregnant and severe preeclamptic sera were 37.52±18.41 fmol/ml and 97.58±53.64 fmol/ml, respectively. The mean amount of endothelin-1 in preeclamptic sera-treated cells was significantly higher than that of normal pregnant sera-treated cells. (P<0.05). Conclusion: The sera from severe preeclamptic women do not affect cell viability but act selectively on specific activation of their function such as endothelin-1 production. And it is necessary that the identification and isolation of the putative serum factor(s) will be performed to resolve the pathogenesis in future.
최용민(Yong Min Choi),노성혁(Seong Hyeok Noh),정희환(Hee Hwan Chung),이종민(Jong Min Lee),김용욱(Yong Yook Kim),이선(Sun Lee),김영진(Young Jin Kim),이지성(Jee Sung Lee),황병철(Byung Chul Whang),박찬용(Chan Yong Park),최유덕(Yu Duk C 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.2
Objective: To evaluate how resection margin involvement after LLETZ affect treatment of CIN and microinvasive cervical cancer, and several factors affecting the resection margin involvement. Method: Retrospective analysis was performed in 160 patients that underwent LLETZ at Gachon Medical College, Gil Medical Center from March, 1997 to September , 1998. The several factors affecting the resection margin involvement were analyzed. Result: The following results were obtained. 1. 127 patients were diagnosized finally with CIN, 30 patients with microinvasive SCC and 3 patients with chronic inflammation. 2. The rate of the negative resection margin involvement was 81% and that of the positive was 19%. 3. No case among 129 cases with the negative resection margin had residual lesion, but 9 cases among 31 cases with the positive resection margin had residual lesion. As a whole, the rate of residual lesion was 6.2%. 4. In CIN, 3 cases of 19 cases with the positive resection margin had residual lesion, but none with the negative resection margin had. 5. The degree of histopathology, glandular involvement, menopause, colposcopic evaluation were correlated with the resection margin involvement but delivery mode and HPV infection not correlated. Conclusion: LLETZ is a enough method to reduce unnecessary hysterectomy in the treatment of CIN, if followed up, in spite of the positive resection margin because of low rate of lesidual lesion, and is a effective method in the treatment of microinvasive cervical cancer when the case with negative resection margin and no lymphovascular invasion was followed up.
김광준(Gwang Jun Kim),김용욱(Yong Yook Kim),김석영(Suk Young Kim),박찬용(Chan Yong Park),이향미(Hyang Mi Lee),황병철(Byung Chul Whang),이선(Sun Lee),김영진(Young Jin Kim),최승헌(Seung Hun Choi),이순표(Soon Pyo Lee),이종민(Jong Min L 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.6
Objective: To evaluate factors associated with fetal losses following mid-trimester diagnostic amniocentesis.Methods: 412 pregnancy outcomes following amniocentesis were analyzed for each variables(maternal age, gestational age, indication for the amniocentesis, placental penetration by aspiration needle, needle touch by the fetus, color of amniotic fluid) with statistical methods(student t-test, chi-square test and multiple logistic regression test).Results: Mean maternal age was 31.8±4.9 years, fetal loss rate was increased slightly with the age of the mother. If the indications were abnormally high maternal serum alpha-fetoprotein level, the pregnancy courses after the procedure were worse than other indication groups. In cases of discolored amniotic fluid, the dark brown discoloration made the pregnancy outcome poor. Gestational age at the time of the procedure, penetration of the placenta by the aspirating needle, needle touch during the procedure by the fetus, did not influence the outcomes after the procedure. Conclusion: Maternal age, indication as neural tube defect in triple test and dark brown discoloration of amniotic fluid are associated with fetal losses following mid-trimester diagnostic amniocentesis.
컨테이너선과 다중 모바일하버의 유체동력학적 상호작용해석
김영복(Young-Bok Kim),김무현(Moo-Hyun Kim),김영훈(Young-Hun Kim),김용욱(Yong-Yook Kim) 대한조선학회 2011 대한조선학회 학술대회자료집 Vol.2011 No.11
As the size of container ships continues to increase, not many existing harbors can host the super-container ship with its increased draft and the corresponding dredging requires huge budget. In addition, the minimization of waiting and offloading time is the most important factor in harbor competitiveness. In this regard, mobile-harbor concept has been developed in Korea to achieve much improved harbor capacity and efficiency. In developing the concept, one of the most important elements is the operability of crane between two or more large floating bodies in side-by-side arrangement. The container ship is to be stationed through a hawser connection to a fixed-pile station at a near-shore region with the depth allowing its large draft. The mobile harbors with cranes are berthed to the side of its hull for container loading/offloading and transportation. The relative motions between the two or more floating bodies with hawser connection have to be within allowable range for the effective crane operation. Therefore, the reliable prediction of the relative motions of the multiple floating bodies with hawser/mooring/fender is essential to find the best hull particulars, hawser/mooring arrangement, and docking-station design. Time-domain multi-hull-mooring coupled dynamic analysis program is used to assess the global performance of the moored system and the hydrodynamic interactions among the multiple floating bodies. In particular, the behaviors of the whole system in non-collinear wind-wave-current environment are simulated and compared to those of collinear cases.
전산해석을 이용한 지진해일이 구조물에 미치는 파압에 관한 연구
김진영,김용욱,최걸기,이필승,Kim. Jin Young,Kim. Yong Yook,Choi. Gul Gi,Lee. Phill Seung 한국방재학회 2014 한국방재학회 학술발표대회논문집 Vol.2014 No.1
본 연구에서는 지진해일에 의한 국내 연안구조물의 피해 정도를 예측하기 위한 기초연구로서 고립파가 구조물에 미치는 파압과 관련한 전산유체해석을 수행하였다. 우리나라에서는 일본에서 발생하는 지진에 따른 동해안의 지진해일 내습과 관련하여, 전파속도와 내습시의 침수심, 범람영역 등과 관련한 연구가 다양하게 진행되어 왔다. 그러나 지진해일이 육지에 내습하여 연안 구조물에 미치는 직접적인 피해와 관한 연구는 거의 없으며, 지진해일에 따른 연안 구조물의 피해정도나 그 규모에 대한 예측이 미비한 상황이다. 지진해일을 대표하는 고립파를 사용하여 연안 구조물에 미치는 파압과 관련하여 전산유체해석S/W인 Flow-3D를 이용하여 고립파의 파고에 따른 구조물에 미치는 영향을 분석하고자 하였다. 수치수조 내에 고립파를 조파하여 단순 구조물에 미치는 파압을 분석하였으며, 구조물의 형상 및 개구부 유무에 따른 구조물 항력의 차이를 비교하였다.