1.Spontaneous Echo Contrast Mistaken for Left Ventricular Thrombus during Venoarterial Extracorporeal Membrane Oxygenation.
Seok In LEE ; So Young LEE ; Chang Hyu CHOI ; Kook Yang PARK ; Chul Hyun PARK
Korean Journal of Critical Care Medicine 2017;32(4):372-375
No abstract available.
Extracorporeal Membrane Oxygenation*
;
Thrombosis*
2.Five Year Experience of Preexposure and Postexposure Rabies Prophylaxis in Korean Children at the National Medical Center.
Jin Chul NOH ; Hyang Mi PARK ; Jong Hyun PARK ; Youn Kyung WON ; Chang Hyu LEE ; Jae Yoon KIM
Korean Journal of Pediatric Infectious Diseases 2013;20(1):9-16
PURPOSE: This study aims to investigate preexposure prophylaxis and postexposure prophylaxis of rabies that the National Medical Center (NMC) handled and to check whether appropriate measures were performed according to the recent domestic and overseas guidelines after animal bites. METHODS: This study surveyed 41 people who were 18 years or under and received preexposure and postexposure prophylaxis of rabies at the NMC from November 2006 to December 2011. Their medical records were reviewed for their age, gender, the reason for preexposure prophylaxis, the body sites of animal bite, the kind of the animal that bit children, the region where the biting occurred and rabies vaccination and inoculation of immunoglobulin. RESULTS: Eleven children took rabies vaccination for preexposure prophylaxis and 30 children received post exposure prophylaxis of rabies. Of patients who were bitten by unvaccinated animals including wild animals or by animals which were not certain to be vaccinated, 50% (13 of 26 children) received postexposure prophylaxis, while 75% (3 of 4 children) of patients who were bitten by vaccinated animals received postexposure prophylaxis of rabies. Ten of 30 bitten patients knew whether or not the biting animals had received rabies vaccination. Of them, four people (40%) were bitten by animals which had received rabies vaccination. CONCLUSION: To prevent the occurrence of rabies, people and health care providers need to correctly understand latest guideline for rabies preexposure and postexposure prophylaxis and the information for bitten patient, biting animal and area at bitten by animal should be accurately recorded.
Animals
;
Animals, Wild
;
Bites and Stings
;
Child
;
Child Health
;
Health Personnel
;
Humans
;
Isothiocyanates
;
Medical Records
;
Post-Exposure Prophylaxis
;
Rabies
;
Vaccination
3.Students' Perceptions of Team-Based Learning by Individual Characteristics in a Medical School.
Kwi Hwa PARK ; Chang Hyu CHOI ; Yang Bin JEON ; Kook Yang PARK ; Chul Hyun PARK
Korean Journal of Medical Education 2013;25(2):113-122
PURPOSE: The purpose of this study was to examine medical students' perceptions of team-based learning (TBL) according to their individual characteristics: gender, team efficacy, interpersonal understanding, proactivity in problem solving, and academic ability. METHODS: Thirty-eight second-year medical students who took an integrated cardiology course participated in this study; 28 were male and 10 were female. A questionnaire on individual characteristics and a questionnaire on the perception of TBL were administered, and the scores of individual characteristics were grouped into three: high, middle, and low. The data were analyzed by t-test, analysis of variance, and multiple regression analysis. RESULTS: The TBL efficacy perception scale consisted of 3 factors: team skill, learning ability, and team learning. The group of male students and the group of students with high academic ability recognized the effect of TBL on improvements in learning ability more than females and those with low academic ability. The group of students with high team efficacy reported that TBL was effective with regard to team skill improvement. The group of students with high scores on interpersonal understanding and high proactive problem solving tended to perceive the TBL's effect on team skill improvement. Team efficacy and proactivity in problem solving had a positive effect on the perception of TBL. CONCLUSION: Medical students' perceptions of the effectiveness of TBL differ according to individual characteristics. The results of this study suggest that these individual characteristics should be considered in planning of team learning, such as TBL, to have a positive impact and stronger effects.
Cardiology
;
Female
;
Humans
;
Learning
;
Male
;
Problem Solving
;
Schools, Medical
;
Students, Medical
;
Surveys and Questionnaires
4.Acute Type A Aortic Dissection Initially Diagnosed with Myocardial Infarction.
Chang Hyu CHOI ; Chul Hyun PARK ; Kook Yang PARK ; Yang Bin JEON ; Jae Ik LEE
The Korean Journal of Thoracic and Cardiovascular Surgery 2012;45(6):424-425
No abstract available.
Myocardial Infarction
5.The Change of Late Potential in Acute Myocardial Infarction and the Influence of Patency of Infarct-Related Artery on Its Development.
Hyun Jae SHIN ; Young Hoon KIM ; Hee Nam PRK ; Chang Hyu PARK ; Hong Seog SEO ; Wan Joo SHIM ; Dong Joo OH ; Jeong Euy PARK ; Young Moo RO
Korean Circulation Journal 1993;23(4):533-541
BACKGROUND: The restoration of anterograde flow in the infarct-related artery(IRA) may improve electrophysiological consequences and survival. Patients with occluded IRA are more likely than those with patent IRA to have late potentials on signal-averaged electrocardiogram(SAEKG). The natural history of late potentials in the acute phase after AMI was reported to vary in recent studies and requires further investigation. Therefore, we investigated 1) whether parameters of SAEKG and incidence of late potentials are changed in 2 weeks after AMI, and 2) whether the status of IRA, ejection fraction, ventricular premature beats(VPB) on Holter and the use of thrombolytic agent can influence the developement of late potentials. METHOD: SAEKGs were performed in 40 patients with acute myocardial infarction(AMI, mean age : 56.6yr) and 20 normal controls(mean age : 53.0yr). SAEKGs were recorded first in 48 hours and then 2 weeks after AMI. Late potential were considered to be positive if two of the three following criteria were identified : 1) duration of filtered QRS complex>118ms, 2) duration of HFLA signal>40 ms, and 3) RMS voltage<20microV. RESULT: 1) The duration of filtered QRS complex and HFLA signal in patients with AMI in 48 hours and 2 weeks were longer than in the controls(p<0.01, p<0.05. respectively), and the RMS voltage in only 2 weeks was lower than in the controls(p<0.05). 2) There was no significant difference in the 3 parameters of SAEKG between 48 hours and 2 weeks after AMI, but the incidence of late potentials increased from 35%(14/40) to 42.5%(17/40). Of the 26 patients with a normal initial SAEKG, 3(11.5%) had late potentials in 2 weeks, whereas none of the patients with positive late potentials on initial SAEKG was normalized in 2 weeks. 3) The ejection fraction, the degree of VPB on the Holter EKG and the history of thrombolyic therapy in patients whose late potentials were positive were not different from those in patients with normal SAEKG. 4) In the 3 parameters of SAEKG, RMS voltage in patients with occluded IRA was significantly lower than in those with open IRA(p<0.05), and the incidence of late potentials were higher in the patients with occluded IRA(75%) than in those with open IRA(28.6%)(p<0.05). CONCLUSION: The incidence of late potentials on SAEKG after AMI was modestly increased in 2 weeks, but the development of late potentials was not influenced by the degree of frequently in patients with occluded IRA. These findings may indicate that the development of late potential after AMI tends to increase even in 2 weeks, and that the occlusion in IRA may unfavorably alter the electrophysiological state identified by SAEKG.
Arteries*
;
Electrocardiography
;
Humans
;
Incidence
;
Myocardial Infarction*
;
Natural History
;
Stroke Volume
6.Spontaneous Echo Contrast Mistaken for Left Ventricular Thrombus during Venoarterial Extracorporeal Membrane Oxygenation
Seok In LEE ; So Young LEE ; Chang Hyu CHOI ; Kook Yang PARK ; Chul Hyun PARK
The Korean Journal of Critical Care Medicine 2017;32(4):372-375
No abstract available.
Extracorporeal Membrane Oxygenation
;
Thrombosis
7.Result of Complete Resection of T3 Non-Small Cell Lung Cancer Invading the Chest Wall.
Chang Hyu CHOI ; Soo Bin YIM ; Jae Hyeun KIM ; Jae Ill ZO ; Hee Jong BAIK ; Jong Ho PARK
The Korean Journal of Thoracic and Cardiovascular Surgery 2001;34(12):924-929
BACKGROUND: The long-term survival after operation of patients with lung cancer invading the chest wall is known to be related to regional nodal involvement, completeness of resection and depth of chest wall involvement. In this study results of complete resection are reviewed to determine survival charateristics. MATERIAL AND METHOD: Of 680 consecutive patients who were operated on for primary non-small cell carcinoma between 1988 and 1998, we retrospectively reviewed 55 patients(8.0%) who had complete resection for lung cancer invading the chest wall or parietal pleura. RESULT: Resection of the chest wall was en bloc in 29 patients(47.3%), and extrapleural in 26(52.7%). In the patients undergoing extrapleural resection, the depth of chest wall invasion was confined to the parietal pleura in all patients(100%). In the patients underging en bloc resection, the pathologic depth of invasion was into the parietal pleura alone in 9(31.0%) and into the chest wall in 20(69.0%). The follow-up rate of these patients was 100%. Hospital mortality was 5.4%(n=3). The actuarial 5-year survival rate was 26% for all hospital survivors(n=52). The actuarial 5-year survival rate of patients with T3N0M0 disease(29%) was better than that of T3N2M0 disease(18%), however, there was no significant(p=0.30) difference. The depth of chest wall invasion had no statistically significant effect on survival in our series, neither for patients with involved lymphatic metastasis nor for those without(p=0.99). CONCLUSION: These observations indicate that the good five year survival in patients with T3 NSCLC invading the chest wall resulted from complete resection. Survival of patients with lung cancer invading the chest wall after complete resection is dependent on the extent of nodal involvement and much less so on the depth of chest wall invasion.
Carcinoma, Non-Small-Cell Lung*
;
Follow-Up Studies
;
Hospital Mortality
;
Humans
;
Lung Neoplasms
;
Lymphatic Metastasis
;
Pleura
;
Retrospective Studies
;
Survival Rate
;
Thoracic Wall*
;
Thorax*
8.Tracheo-Innominate Artery Fistula: a case report.
Chang Hyu CHOI ; Sam Hyun KIM ; Sung Sik PARK ; Gyung Min RYU ; Jae Hyun KIM ; Pil Won SEO
The Korean Journal of Thoracic and Cardiovascular Surgery 2000;33(5):436-439
Tracheo-innominate artery fistula is a rare, but it is one of the gravest complications next to tracheostromy. Early recognition and prompt surgical management is mandatory. The patient was a 66 year old women with MCA infarct who maintained tracheostomy for lyear. She had respiratory arrest due to the excessive bleeding through the tracheostomy site. We report an successful experience for control of bleeding by an innominate artery fistula division and primay suture closure under direct digital compression.
Aged
;
Arteries*
;
Brachiocephalic Trunk
;
Female
;
Fistula*
;
Hemorrhage
;
Humans
;
Sutures
;
Tracheostomy
9.An Evaluation for the Occupational Distribution of Carpal Tunnel Syndrome Diagnosed at a University Hospital.
Yong Hyu CHOI ; Seong Kyu KANG ; Chang Ho CHAE ; Jong Han LEEM ; Chung Yill PARK
Korean Journal of Occupational and Environmental Medicine 1999;11(3):313-322
OBJECTIVES: The study was carried out to evaluate the work-relatedness and the occupational distribution in 147 carpal tunnel syndrome(CTS) cases diagnosed at a university hospital from May 1996 to May 1998. METHODS: We obtained the information on disease appearance, occupational history including job content and other life style by medical records and telephone interviews. RESULTS: Of the 147 patients with carpal tunnel syndrome, 51 patients(34.7 %) were shown to be work-related. Work-related CTS were most frequent in elementary workers (21 case, 41.2%). The other eases were 15(29.4%) workers in service and shop and market sales, 9(17.6%) workers in craft and related traders, 4(7.8%) workers in skilled agriculture and fishery. Only two workers had claimed to the Industrial Accident Compensation Insurance, but no one has been admitted as an occupational CTS yet. CONCLUSIONS: It is suggested that arrangements of surveillance system for adequate control of occupational CTD is neccessity.
Accidents, Occupational
;
Agriculture
;
Carpal Tunnel Syndrome*
;
Commerce
;
Compensation and Redress
;
Fisheries
;
Humans
;
Insurance
;
Interviews as Topic
;
Life Style
;
Medical Records
10.Development of a diagnostic method of helicobacter pylori infection: II. detection of helicobacter pylori using polymerase chain reaction.
Cheol Keun PARK ; Woo Kon LEE ; Young Mi DOH ; Hyu Jin CHOI ; Myung Je CHO ; Hee Shang YOUN ; Kwang Ho RHEE ; Woo Hyun CHANG
Journal of the Korean Society for Microbiology 1992;27(1):45-58
No abstract available.
Helicobacter pylori*
;
Helicobacter*
;
Polymerase Chain Reaction*