http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
전두수(Doo Soo Jeon),정해억(Hae Uk Chung),승기배(Ki Bae Seung),강동헌(Dong Hun Kang),김상우(Sang Wo Kim),김용주(Young Ju Kim),채장성(Jang Sung Chae),김재형(Jae Hyung Kim),홍순조(Soon Jo Hong),최규보(Kyu Bo Choi) 대한내과학회 1996 대한내과학회지 Vol.50 No.6
N/A Objectives: Cardiogenic shock resulting from acute myocardial infarction is a serious complication with high mortality. The early identification of patients at high risk of developing post-infarction cardiogenic shock might allow early intervention in an attempt to prevent cardiogenic shock and to reduce the mortality due to cardiogenic shock. The aim of the present study was to examine the risk factors of inhospital development of cardiogenic shock among patients with acute myocardial infarction. Methods: We studied 152patients with acute myocardial infarction who were admitted to Kang-Nam St. Mary's hospital within 24hours after the onset of chest pain and did not have cardiogenic shack on admission between March 1991 and May 1994. Clinical data of these patients were analyzed. Results: Of 152patients, 17(11.1%) developed cardiogenic shock during their hospital stay. Cardiogenic shock developed in 53% of cases more than 24hours after admission. 82.4% of patients with cardiogenic shock died whereas a 6.7% in-hospital mortality was found among patients without cardiogenic shock. Multivariate regression analysis that controlled for variables affecting incidence of postinfarction cardiogenic shock showed that independent risk factors for in-hospital cardiogenic shock were history of myocardial infarction (adjusted relative odds[RO]=5.294, 95% confidence interval[CI]=2.149 to 13.041); heart failure on admission (RO=3.344, 95% CI=1.738 to 6.432); hyperglycemia (>180mg/dl) in non-diabetic patients (RO=3.270, 95% CI=1,590 to 6.727); age over 70 year old (RO=2.912, 95% CI= 1.816 to 4.668); ST deviation over 4mm (RO=2.417, 95% CI=1.225 to 4.767); peak LDH level greater than 1600U/ml (RO=1.154, 95% CI=1.080 to 1.233). Patients with one independent risk factor had an estimated probability of 10.5% for developing inhospital cardiogenic shock; patients with two independent risk factors, 48.5%, patients with three risk factors, 65.0% patients with four risk factors, 65.7% patients with five risk factors, 67.2%. Conclusion: Of post-infarction cardiogenic shock during admission, 53% developed more than 24hours after admission. The more independent risk factors on admission for inhospital cardiogenic shock patients with acute myocardial infarction had, the more likely in-hospital cardiogenic shock developed.
Sung-Gyu Lee,Shin Hwang,Tae Yong Ha,Gi Won Song,Dong-Hwan Jung,Gil-Chun Park,Chul-Soo Ahn,Deok-Bog Moon,Ki Hun Kim,Young-In Yoon,Yo Han Park,Hui-Dong Cho,Yong-Kyu Chung,Sang-Hyun Kang,Jin-Uk Choi,Sung 대한이식학회 2019 Korean Journal of Transplantation Vol.33 No.4
Background: Autologous portal vein Y-graft (PYG) interposition has been the standard procedure for reconstruction of double portal vein (PV) orifices of right liver grafts during living donor liver transplantations. However, it has the disadvantage of being vulnerable to anastomotic stenosis. A refined technique of conjoined unification venoplasty (CUV) was developed to secure PV reconstruction. Methods: We reviewed the surgical outcomes in PV reconstructions using CUVs in 21 cases which were followed up for >3 years. Results: The mean age of recipients was 51.7±4.9 years. The model for end-stage liver disease score was 15.3±6.4. The graft-recipient weight ratio was 1.12±0.21. Recipient PYGs were harvested in all cases. All living donors were blood relatives or relatives through marriage with type III PV anomalies. The number of right liver graft PV orifices was two in 19 cases and three in two cases. For the central intervening vein patch, a PV segment was used in six cases, and an autologous greater saphenous vein patch was used in the remaining 15 cases. The 21 patient cohort displayed a 100% 4-year patient survival rate. None of them underwent any PV interventions including interventional stenting. Serial follow-up computed tomography scans revealed that the reconstructed PV showed early reshaping with a stable streamlined configuration for over 3 years. Conclusions: PV reconstruction using the CUV technique appears to be significantly more effective in preventing PV complications. We believe that CUV is a useful technique to reconstruct right liver grafts with multiple PV orifices.
Kang Hye Seon,Kim Jae Yeol,박혜정,Jung Jae-Woo,Choi Hye Sook,Park Jong Sook,Park Joo Hun,Lee Sang Haak,Chun Eun Mi,Cho Yoojung,Rhee Eunhee,Hwang Beom Seuk,Korean Smoking Cessation Study Group 대한의학회 2021 Journal of Korean medical science Vol.36 No.48
Background: This study aimed to investigate the association between e-cigarette (EC) use and development of acute severe pneumonia in the Korean population using a national database. Methods: We conducted a retrospective analysis using linkage of data between the Korean National Health and Nutrition Examination Survey (KNHANES) and the National Health Insurance Service (NHIS) administrative claims database. The primary endpoint of this study was development of severe pneumonia requiring hospital admission according to EC use during the study period. The secondary endpoints were in-hospital mortality, intensive care unit (ICU) admission, ventilator care, and days of hospital stay. Results: The final analysis included 28,950 individuals, of which 578 (2.0%) were EC users. EC users were younger and more often male than non-EC users. The EC users showed higher level of education and household income and had fewer comorbidities. Severe pneumonia was noted in 37 of 28,372 non-EC users (0.13%), but there were no occurrences of severe pneumonia in EC users. The incidence of pneumonia occurrence was not different between the two groups (P = 1.000). Conclusions: Since e-cigarette or vaping use-associated lung injury (EVALI) is most likely included in acute severe pneumonia occurring within 3 months of EC use, it is considered that there might be no EVALI patients in Korea during the investigation period. A large-scale, prospective study is necessary to evaluate the association between EC use and acute lung injury.
Sung-Dug Oh,Ki-Jong Lee,Soo-In Sohn,Myung Ja Kang,Jong-Sug Park,Hyun Suk Cho,Tae-Hun Ryu 한국육종학회 2013 한국육종학회 심포지엄 Vol.2013 No.07
Genetically modified (GM) crops have been developed worldwide through the recombinant DNA technology and commercialized by various agricultural biotechnological companies. Commercialization of GM crops will be required the assessment of risk associated with the release of GM crops. In this study, we carried out to provide the molecular characterization of introduced T-DNA in transgenic rice T4 ~ T6 generation lines harboring a pepper MsrB2 gene under the control of stress inducible Rab21 promoter, as a part of biosafety evaluation for drought-tolerant transgenic rice (CaMsrB2). We identified the structure and sequence of transformation vector of T-DNA and analyzed insertion sites, flanking sequences, and generational stability of inserted T-DNA in transgenic rice lines. The transformation vector was consisted of right border, a drought-tolerant CaMsrB2 gene unit, a selectable marker herbicide resistance unit, and left border in a sequential order. Based on the adaptor-ligation PCR and whole genome sequence database, we confirmed that T-DNA was introduced at the position of 41,737,284 bp of chromosome No. 1. From the generational stability study, T-DNAs were stably inherited through the T4 to T6 generations, and also stable expression of bar gene from T-DNA was confirmed. These results will be filed to biosafety assessment document of CaMsrB2 rice.
Fast Device Discovery for Remote Device Management in Lighting Control Networks
( Sang Il Choi ),( Sang Hun Lee ),( Seok Joo Koh ),( Sang Kyu Lim ),( In Su Kim ),( Tae Gyu Kang ) 한국정보처리학회 2015 Journal of information processing systems Vol.11 No.1
The Remote Device Management (RDM) protocol is used to manage the devices in the lighting control networks. RDM provides bi-directional communications between a controller and many lighting devices over the DMX512-A network. In RDM, using a simple binary search scheme, which is based on the 48-bit unique ID (UID) of each device, discovers the lighting devices. However, the existing binary search scheme tends to require a large delay in the device discovery process. In this paper, we propose a novel partition-based discovery scheme for fast device discovery in RDM. In the proposed scheme, all devices are divided into several partitions as per the device UID, and the controller performs device discovery for each partition by configuring a response timer that each device will use. From numerical simulations, we can see that there is an optimal number of partitions to minimize the device discovery time for a given number of devices in the proposed scheme, and also that the proposed partition-based scheme can reduce the device discovery time, as compared to the existing binary search scheme.
Kang,Hyun Il,Lee,Sang Hun,Oh,Jae Eung 대한전자공학회 1997 ICVC : International Conference on VLSI and CAD Vol.5 No.1
An MMIC single-ended mixer has been developed by using a combination of two GaAs MESFETs with different gate width in the cascode configuration. The fabricated mixer shows a conversion gain of 4 dB at an LO power of 0 dBm a noise figure (NF) of 11 dB, and an LO to RF isolation better than 17 dB in the frequency band of PCS. The mixer developed in this work shows an improved intermodulation characteristics with very low power consumption compared with the conventional dual-gate mixer.
( Sung Yong Oh ),( Suee Lee ),( Sung Hyun Kim ),( Ji Hyun Lee ),( Hyo Jin Kim ),( Jung Hun Kang ),( Soon Il Lee ),( Young Mi Seo ),( Young Jin Choi ),( Min Jae Park ),( Moon Jin Kim ),( Ho Yeong Lim ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Background: By defi nition, primary adenocarcinoma of the bladder (PAB) is a malignant neoplasm derived from urothelium of the bladder showing histologically pure glandular differentiation.Because of its rarity, role of chemotherapy for metastatic PAB is still questionable. Therefore, we performed a retrospective analysis of the clinical features and chemotherapy outcomes of metastatic PAB. Methods: Eligible patients for this retrospective analysis were initially diagnosed with adenocarcinoma and presented with a clinically no other primary site of origin. Unifi ed case report forms were provided to participating institutions. Results: We retrospectively reviewed 27 patients who treated with chemotherapy as metastatic PAB at nine Korean medical institutions from 2004 to 2014.The median age of patients was 58 years (range, 26 to 78 years) and 51.9% of the patients were female. Fourteen patients were urachal adenocarcinoma. Of 25 symptomatic patients, 19 experienced gross hematuria. Ten patients had two or more metastatic sites of the lungs (48.1%), peritoneum (33.3%), and ovary (22.2%), as the most common sites. Eleven patients were treated with 5-FU based chemotherapy, 4 were gemcitabine based, 3 were taxane and adriamycin based, and others. 13 of them achieved CR (14.8%) or PR (33.3%). Median PFS and OS for all patients were 10.6 months (95% confi dence interval [CI], 9.6 to 11.6 months) and 23.5 months (95% CI, 13.6 to 33.4 months), respectively. In the prognostic factor analysis, the cases of urachal adenocarcinoma had worse tendency in PFS and OS (p=0.058 and P=0.113, respectively). Conclusions: Metastatic PAC is a highly aggressive form of bladder cancer. Despite most of chemotherapy, PFS and OS were short, however, there were some long-term survivors, therefore, additional research on the predictive markers of several clinical, pathological differences and their treatments will be needed.
S-715 Giant Cell Arteritis with Cerebral Artery Involvement Proven by Brain Biopsy
( Sang Hoon Park ),( Ho Hyun Park ),( Seung Hun Kang ),( Bon San Koo ) 대한내과학회 2016 대한내과학회 추계학술대회 Vol.2016 No.1
Introduction:?Giant cell arteritis (GCA) is categorized as a vasculitis of large and medium sized vessels. Cerebral artery involvement with pathological findings is not well documented in GCA patients. We report a rare case of GCA with cerebral vessels involvement in a 76-year-old woman.?Case:?A 76-year-old female patient was referred to the Department of Neurosurgery due to drowsy mentality. Brain magnetic resonance imaging demonstrated an expanding mass in the left frontal lobe. The patient underwent a left frontal craniotomy. Histological analysis of the specimen revealed extensive infarction with foci of organization. The tissue adjacent to the necrosis exhibited frequent multinucleated giant cells. Multinucleated giant cells were also observed in the meningeal and intracortical vessel walls. The tissue also exhibited wall necrosis and perivascular lymphocytic infiltration. Meningeal arteries frequently demonstrate intimal thickening with luminal narrowing. A few well-formed granulomas were observed, which were predominantly located in the meningeal tissue. However, there was no evidence of neoplasm and tuberculosis. These findings suggested that the patient was suffering from vasculitis of the cerebral vessels. She was referred to the Department of Rheumatology. To find further vascular involvement, computed tomography (CT) angiography was performed, which indicated stenosis and occlusion of the left temporal artery. In addition, diffuse narrowing and stenosis with slightly decreased distal flow on the M1 segment of the left middle cerebral artery (MCA) were observed. According to the 1990 American College of Rheumatology GCA classification criteria, she met at least 3 parameters: age, decreased pulsation of the temporal artery, and abnormal artery biopsy results. She was treated with high dose methylprednisolone. After steroid therapy, her mental status was recovered. After 3 months, regression of the MCA stenosis was detected in follow-up CT angiography.?Conclusions:?We report a rare case of GCA patient with cerebral artery involvement. This case showed that GCA may present as the involvement of cerebral artery and was proven by brain biopsy.