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Dong Gu Shin 19 Articles
Bronchogenic cyst masquerading as malignant pericardial effusion with tamponade
Kang Un Choi, Byung Jun Kim, Hong Ju Kim, Jang Won Son, Jong Seon Park, Dong Gu Shin, Young Jo Kim
Yeungnam Univ J Med. 2017;34(1):91-95.   Published online June 30, 2017
DOI: https://doi.org/10.12701/yujm.2017.34.1.91
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AbstractAbstract PDF
We report on a rare case involving a 23-year-old female patient with mediastinal cystic mass complicated with acute pericarditis and cardiac tamponade. Pericardial fluid demonstrated lymphocyte-predominant exudate and the level of carcinoembryonic antigen (CEA) was unexpectedly elevated. Successive aspiration of mediastinal cystic mass revealed a very high level of CEA (>100,000 U/mL) and carbohydrate antigen 19-9 (>15,000 ng/mL). This patient was clinically diagnosed as an infected bronchogenic cyst complicated with pericarditis and cardiac tamponade. The treatment resulted in alleviation of her symptoms.
Early Stage Loeffler's Endocarditis Detected by Transthoracic Echocardiography.
Min Kyu Kang, Won Jong Park, Sung Yun Jung, Su Mi Kim, Tae Hun Kwon, Young Ha Ryu, Jang Won Son, Dong Gu Shin
Yeungnam Univ J Med. 2012;29(2):118-120.   Published online December 31, 2012
DOI: https://doi.org/10.12701/yujm.2012.29.2.118
  • 1,629 View
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AbstractAbstract PDF
Loeffler's endocarditis involves progressive eosinophilic infiltration of the endocardium, which leads to apical thrombotic obliteration of the ventricle and endomyocardial fibrosis, that may finally represent a characteristic feature of restrictive cardiomyopathy. This paper presents a case of a 44-year-old male with symptoms of dyspnea and peripheral hypereosinophilia, who was diagnosed with early stage Loeffler's endocarditis via multicardiac imaging modalities.
Torsade de Pointes Induced by Long-Term Oral Amiodarone Therapy.
Jong Ho Nam, Yoon Jung Choi, Min Kyu Kang, Sung Yun Jung, Su Mi Kim, Sang Hee Lee, Dong Gu Shin
Yeungnam Univ J Med. 2011;28(1):90-93.   Published online June 30, 2011
DOI: https://doi.org/10.12701/yujm.2011.28.1.90
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AbstractAbstract PDF
Although amiodarone is generally regarded as safe with a low incidence of associated arrhythmias, torsade de pointes (TdP) has been observed usually in the presence of predisposing factors. We report a case of amiodarone-induced TdP after long-term administration of a low dose of oral amiodarone in the absence of predisposing factors.
Parasympathetic Modulation Plays a Key Role in Initiation of Paroxysmal Atrial Fibrillation.
Won Jae Lee, Dong Gu Shin, Geu Ru Hong, Jong Sun Park, Young Jo Kim
Yeungnam Univ J Med. 2007;24(2):216-231.   Published online December 31, 2007
DOI: https://doi.org/10.12701/yujm.2007.24.2.216
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AbstractAbstract PDF
BACKGROUND
An acceleration or deceleration of the heart rate (HR), which reflects autonomic effects, is observed before the onset of paroxysmal atrial fibrillation (PAF). The purpose of this study was to assess the discrepancy in the autonomic interactions before the onset of PAF for different patterns of change in the HR. MATERIALS AND METHODS: From 105 Holter tapes with the PAF recorded, 55 episodes (42 patients, 34 men, 58+/-12 years) of PAF (>5 min), preceded by a sinus rhythm for more than 1 hour, were selected and submitted to time-domain and frequency-domain HR variability analyses. Fifty-five episodes were divided into 2 groups: group A PAF (n=30) with acceleration of the HR during the last 2 minutes before the PAF and group B (n=25) with deceleration of the HR. RESULTS: A significant linear decrease in the mean R-R interval was observed in group A (924+/-30 to 835+/-28 ms, P=0.001) and an increase from 831+/-32 to 866+/-31 ms in group B PAF episodes (P=0.046). In the frequency-domain analyses, the LF/HF ratio exhibited a progressive linear increase before the PAF in group A (P=0.005). The HF normalized units (HFnu) and natural logarithm-transformed HF (lnHF) values decreased from 30.8+/-4.0 to 16.1+/-1.8 (P=0.003) and 4.49+/-0.25 to 4.07+/-0.22 (P=0.001), respectively. Contrary to the results in group A, a significant increase in the HF components (HFnu and lnHF) (from 22.6+/-3.2 to 30.2+/-4.0, P=0.005, and 4.27+/-0.27 to 4.75 0.33, P=0.001, respectively) and a resultant decrease in the LF/HF ratio were observed in group B PAF episodes. No significant changes were observed in the LF components in either PAF group. CONCLUSION: Autonomic stimuli leading to an acceleration or deceleration of the HR before the onset of AF are due to parasympathetic modulation. Parasympathetic modulation plays a key role in the initiation of PAF
The Difference of Left Atrial Volume Index: Can It Predict the Occurrence of Atrial Fibrillation after Radiofrequency Ablation of Atrial Flutter?.
Ung Kim, Young Jo Kim, Sang Wook Kang, In Wook Song, Jung Hwan Jo, Sang Hee Lee, Geu Ru Hong, Jong Seon Park, Dong Gu Shin
Yeungnam Univ J Med. 2007;24(2):197-205.   Published online December 31, 2007
DOI: https://doi.org/10.12701/yujm.2007.24.2.197
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AbstractAbstract PDF
BACKGROUND
The occurrence of atrial fibrillation after ablation of atrial flutter is clinically important. We investigated variables predicting this evolution in ablated patients without a previous atrial fibrillation history. MATERIALS AND METHODS: Thirty-six patients (Male=28) who were diagnosed as atrial flutter without previous atrial fibrillation history were enrolled in this study. Group 1 (n=11) was defined as those who developed atrial fibrillation after atrial flutter ablation during 1 year follow-up. Group 2 (n=25) was defined as those who has not occurred atrial fibrillation during same follow-up term. Echocardiogram was performed to all patients. We measured left atrial size, left ventricle end diastolic and systolic dimension, ejection fraction and left atrial volume index before and after ablation of atrial flutter. The differences of each variables were compared and analyzed between two groups. RESULTS: The preablation left ventricular ejection fraction (preLVEF) and postablation left ventricular ejection fraction (postLVEF) are 54+/-14%, 56+/-13% in group 1 and 47+/-16%, 52+/-13% in group 2. The differences between each two groups are statistically insignificant (2.2+/-1.5 in group 1 vs 5.4+/-9.8 in group 2, p=0.53). The preablation left atrial size (preLA) and postablation left atrial size (postLA) are 40+/-4 mm, 41+/-4 mm in group1 and 44+/-8 mm, 41+/-4 mm in group 2. The atrial sizes of both groups were increased but, the differences of left atrial size between two groups before and after flutter ablation were statistically insignificant (0.6+/-0.9mm in group 1 vs -3.8+/-7.4 mm in group 2, p=0.149). The left atrial volume index before flutter ablation was significantly reduced in group 1 than group 2 (32+/-10 mm3/m2, 35+/-10 mm3/m2 in group 1 and 32+/-10 mm3/m2, 29+/-8 mm3/m2 in group 2, p<0.05). CONCLUSION: The difference between left atrial volume index before and after atrial flutter ablation is the robust predictor of occurrence of atrial fibrillation after atrial flutter ablation without previous atrial fibrillation.
Cardiac Resynchronization Therapy.
Hyong Jun Kim, Dong Gu Shin
Yeungnam Univ J Med. 2005;22(2):131-140.   Published online December 31, 2005
DOI: https://doi.org/10.12701/yujm.2005.22.2.131
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AbstractAbstract PDF
Heart failure is a clinical syndrome comprised of a number of symptoms and signs associated with congestion and/or hypoperfusion. Specific pharmacologic therapies have been developed to slow disease progression from early to more advanced stages. Once symptoms have developed, aggressive multimodality interventions are instituted to alleviate symptoms and improve clinical status and quality of life; especially in those patients that present symptoms. Recently, an evolving adjunctive therapeutic modality, that involves using implanted electrical devices: cardiac resynchronization with or without implantable cardioverter defibrillators (ICD). has been used for management. Cardiac resynchronization therapy (CRT) is a proven treatment for selected patients with heart failure-induced conduction disturbances and ventricular dyssynchrony. When used in combination with stable, optimal medical therapy, CRT is designed to reduce symptoms and improve cardiac function by restoring the mechanical sequence of ventricular activation and contraction. This review summarizes the rationale, procedure, clinical trials, and clinical indications for CRT.
Treatment of Coronary Artery Perforation and Tamponade Complicating Balloon Angioplasty by PTFE-Covered Stent. A Case Report.
Jong Seon Park, Gu Ru Hong, Jun Ho Bae, Ihn Ho Cho, Bong Sup Shim, Young Jo Kim, Dong Gu Shin
Yeungnam Univ J Med. 2005;22(1):90-95.   Published online June 30, 2005
DOI: https://doi.org/10.12701/yujm.2005.22.1.90
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AbstractAbstract PDF
A coronary artery perforation is a rare but often fatal complication of angioplasty. We experienced a coronary artery perforation and cardiac tamponade during balloon angioplasty. A polytetrafluorethylene (PTFE) -covered stent was used to successfully close the perforation.
Evaluation of short-term Hypolipidemic Effect and Safety of Simvastatin(Zocor(R)) in Patients with Hyperlipidemia.
Min Kyoung Kim, Yong Ho Park, Jong sun Park, Dong Gu Shin, Young Jo Kim, Gi Sik Kim
Yeungnam Univ J Med. 2003;20(2):152-159.   Published online December 31, 2003
DOI: https://doi.org/10.12701/yujm.2003.20.2.152
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  • 1 Crossref
AbstractAbstract PDF
BACKGROUND
Hyperlipidemia is the one of the major risk factors causing the atherosclerosis of coronary arteries. Treatment of hyperlipidemia with drugs has been confirmed the effects of therapy showing a decreased incidence of coronary artery disease. Simvastatin is a new drug of HMG-CoA reductase inhibitors and the short-term hypolipidemic effects and safety of simvastatin is evaluated in patients with hyperlipidemia. METHODS: We studied 63 patients (39 males and 24 females, mean age 58) for 12 weeks whose plasma levels of total cholesterol were higher than 240 mg/dL or higher than 220 mg/dL with ischemic heart disease. Simvastatin was administered 20 mg/day and measured lipid profile at 12 week interval. RESULT: 1)Simvastatin significantly reduced the level of the plasma total cholesterol(-29.3%), LDL- cholesterol(-36.9%) and triglyceride(-13%)(p<0.05) but the level of HDL-cholesterol was not changed after 12 weeks simvastatin therapy. 2)the clinical symptoms and laboratory examination before and after simvastatin treatment showed no particular abnormal findings in short term follow up. CONCLUSION: These results suggested that short-term simvastatin therapy in patients with hyperlipidemia seeems to be very effective and safe.

Citations

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  • A Population Pharmacokinetic–Pharmacodynamic Model for Simvastatin that Predicts Low‐Density Lipoprotein‐Cholesterol Reduction in Patients with Primary Hyperlipidaemia
    Jimyon Kim, Byung‐Jin Ahn, Hong‐Seok Chae, Seunghoon Han, Kichan Doh, Jeongeun Choi, Yong K. Jun, Yong W. Lee, Dong‐Seok Yim
    Basic & Clinical Pharmacology & Toxicology.2011; 109(3): 156.     CrossRef
P wave dispersion as a predictor of idiopathic paroxysmal atrial fibrillation.
Gue Ru Hong, Woong Kim, Jong Seon Park, Dong Gu Shin, Young Jo Kim, Bong Sup Shim
Yeungnam Univ J Med. 2001;18(2):267-276.   Published online December 31, 2001
DOI: https://doi.org/10.12701/yujm.2001.18.2.267
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BACKGROUND
P wave dispersion(PWD) is defined as the difference between the maximum and minimal P wave duration in any of the 12 leads of the surface ECG. The prolongation of atrial conduction time and the inhomogeneous propagation of sinus impulse are known electrophysiologic features in patients with paroxysmal atrial fibrillation(PAF). The purpose of this study was to determine the role of P wave dispersion for the prediction of PAF and to evaluate the effectiveness of prophylactic antiarrhythmic therapy. MATERIALS AND METHODS: The study population included 20 patients with a history of idiopathic PAF and 20 age and sex matched healthy control subjects. We measured the maximum P wave duration(P maximum) and P wave dispersion from 12 lead ECG. RESULTS: P maximum and P dispersion in idiopathic PAF were significantly higher than normal control group(97.2+/-12, 48.5+/-9msec vs, 76.5+/-11, 21+/-8msec, respectively p<0.001, <0.001). After 12-month follow up period P maximum and P dispersion were significantly reduced than those of initial state(77.2+/-13, 26.4+/-9msec vs. 97.2+/-12, 48.5+/-9msec, respectively p<0.001,<0.001). CONCLUSION: P dispersion and P maximum were significantly different between patients with idiopathic PAF and healthy control group. Those are easily accessible, non-invasive simple electrocadiographic markers that could be used for the prediction and prognostic factors of idiopathic PAF.
Change of Serum Levels of C-Reactive Protein After Coronary Angioplasty and Its Effects on Clinical Restenosis.
Jong Seon Park, Gu Ru Hong, Chae Hoon Lee, Dong Gu Shin, Young Jo Kim, Bong Sup Shim
Yeungnam Univ J Med. 2001;18(2):215-225.   Published online December 31, 2001
DOI: https://doi.org/10.12701/yujm.2001.18.2.215
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BACKGROUND
There are many evidences that inflammation is an important determinant of the development of atherosclerosis and one of the systemic markers of inflammation, C-reactive protein(CRP), is associated with extent of coronary artery disease and risk of coronary events. We assessed the time response of CRP response after coronary angioplasty and it's influence on the clinical restenosis in angina patients. MATERIALS AND METHODS: Patients included 36 angina patients undergoing single vessel angioplasty. Levels of CRP were measured before and 12, 24, 48, and 72 hours after angioplasty. Clinical restenosis was assessed at 6 months after procedure. RESULTS: Baseline CRP level was 0.30+/-0.01 mg/dL in stable and 0.46+/-0.28 mg/dL in unstable angina patients(p<0.05). After angioplasty, CRP level was increased with peak at 24 hour and persisted to 72 hours after angioplasty. At 24 hour after angioplasty, the magnitude of CRP change was 0.32+/-0.31 mg/dL in stable and 0.79+/-0.73 mg/dL in unstable angina patient(p<0.05). The change of CRP level was not associated with troponin-T after angioplasty. In unstable angina patients, clinical restenosis was developed in 8% of patients with low baseline CRP levels and in 50% of those with high baseline CRP levels more than 0.6 mg/dL(p<0.05). CONCLUSION: In unstable angina patients, inflammatory response is more increased than stable angina patients, and increased inflammatory response effects on the restenosis after coronary angioplasty.
Development of Data Acquisition System for Quantification of Autonomic Nervous System Activity and It's Clinic Use.
Dong Gu Shin, Jong Sun Park, Young Jo Kim, Bong Sup Shim, Sang Hak Lee, Jun Ha Lee
Yeungnam Univ J Med. 2001;18(1):39-50.   Published online June 30, 2001
DOI: https://doi.org/10.12701/yujm.2001.18.1.39
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AbstractAbstract PDF
BACKGROUND
Power spectrum analysis method is a powerful noninvasive tool for quantifying autonomic nervous system activity. In this paper, we developed a data acquistion system for estimating the activity of the autonomic nervous system by the analysis of heart rate and respiratory rate variability using power spectrum analysis. MATERIALS AND METHODS: For the detection of QRS peak and measurement of respiratory rate from patient's ECG, we used low-pass filter and impedence method respectively. This system adopt an isolated power for patient's safety. In this system, two output signnals can be obtained: R-R interval(heart rate) and respiration rate time series. Experimental ranges are 30-240 BPM for ECG and 15-80 BPM for respiration. RESULTS: The system can acquire two signals accurately both in the experimental test using simulator and in real clinical setting. CONCLUSION: The system developed in this paper if efficient for the acquisition of heart rate and respiration signals. The system will play a role in research area for improving our understanding of the pathophysiologic involvement of the autonomic nervous system in various disease states.
Clinical Presentation of th patients with Non-traumatic Chest Pain in Emergency Department.
Jun Young Chung, Sam Beom Lee, Byung Soo Do, Jong Seon Park, Dong Gu Shin, Young Jo Kim
Yeungnam Univ J Med. 1999;16(2):283-295.   Published online December 31, 1999
DOI: https://doi.org/10.12701/yujm.1999.16.2.283
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AbstractAbstract PDF
BACKGROUND
Patients with acute non-traumatic chest pain are among the most challenging patients for care by emergency physicians, so the correct diagnosis and triage of patients with chest pain in the emergency department(ED) becomes important. To avoid discharging patients with acute myocardial infarction(AMI) without medical care, most emergency physicians attempt to admit almost all patients with acute chest pain and order many laboratory tests for the patients. But in practice, many patients with non-cardiac pain can be discharged with simple tests and treatment. These patients occupy expensive intensive care beds, substantially increasing financial cost and time of stay at ED for the diagnosis and treatment of myocardial ischemia and AMI. Despite vigorous efforts to identify patients with ischemic heart disease, approximately 2% to 5% of patients presented to the ED with AMI and chest pain are inadvertently discharged. If the cause for the chest pain is known, rapid and accurate diagnosis can be implemented, preventing wastes in time and money and inadvertent discharge. Methods and Results: The medical records of 488 patients from Jan. 1 to Dec. 31, 1997 were reviewed. There were 320(angina pectoris 140, AMI 128) cases of cardiac diseases, and 168(atypical chest pain 56, pneumothorax 47) cases of non-cardiac diseases. The number of associated symptoms were 1.1+/-0.9 in non-cardiac diseases, 1.4+/-1.1 in cardiac diseases and 1.7+/-1.1 in AMI(p<0.05). In laboratory finding the sensitivity of electrocardiography(EKG) was 96.1%, while the sensitivity of myoglobin test ranked 45.1%. Admission rate was 71.6% in for cardiac diseases and 50.6% for non-cardiac diseases(p<0.01). Mortality rate was 8.8% in all cases, 13.8% in cardiac diseases, 0.6% in non-cardiac diseases, and 28.1% especially in AMI. CONCLUSION: In conclusion, all emergency physicians should have thorough knowledge of the clinical characteristics of the diseases which cause non-traumatic chest pain, because a patient with any of these life-threatening diseases would require immediate treatment. Detailed history on the patient should be taken and physical examination performed. Then, the most simple diagnostic approach should be used to make an early diagnosis and to provide treatment.
Antihypertensive effect and safety of imidapril on the patient with essential hypertension.
Gue Ru Hong, Jun Ho Bae, Dae Jin Jun, Jong Seon Park, Dong Gu Shin, Young Jo Kim, Bong Sup Sim
Yeungnam Univ J Med. 1999;16(1):69-75.   Published online June 30, 1999
DOI: https://doi.org/10.12701/yujm.1999.16.1.69
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AbstractAbstract PDF
Imidapril(Tanatril(R)), a newly developed ACE inhibitor, has been used to treat hypertension and congestive heart failure. This study was designed to assess the antihypertensive effect and safety of Imidapril(Tanatril(R)) in patient with essential hypertension. 5-10mg of imidapril(Tanatril(R)) was administered once day in 30 patients with essential hypertension and followed up to 8 weeks. We tested the drug's effectiveness, safety, and the incidence of imidapril induced dry coughs. After 8 weeks of treatment with Imidapril, 76.2%(16/21) of patient showed lowered blood pressure and 47.6% showed normal blood pressure. The overall incidence of adverse effects was 33.3%(7/21). and among these adverse effects. dry cough was shown in only 9.5%. Thus, concluded that imidapril(Tanatril(R)) is as safe and effective as other ACE inhibitors. especially with imidapril showing very little incidence of dry cough compared to other ACE inhibitors.
Determinants of Successful Percutaneous Transluminal Coronary Angioplasty.
Kyo Won Choi, Jun Young Kweon, Yeung Jin Kim, Tae Il Lee, Dong Gu Shin, Young Jo Kim, Bong Sup Shim, Hyun Woo Lee, Sam Beom Lee
Yeungnam Univ J Med. 1994;11(2):230-239.   Published online December 31, 1994
DOI: https://doi.org/10.12701/yujm.1994.11.2.230
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AbstractAbstract PDF
In Order to evaluate determinants of successful percutaneous transluminal coronary angioplasty (PTCA), PTCA was performed for 172 coronary arterial lesions in 120 patients(89 male, 31 female) at Yeungnam university hospital from Sep. 1992 to Aug 1993. The corinary artery luminal diameter at the site of the original stenosis was eveluated from end-diastolic frames of identical projections of the preangioplasty and immediate post angioplasty. The coronary luminal and balloon diameters were measured with using of computer measuring system. Overall success rate of 172 attempted lesions was 87.2%. Success rate of female patients was 93.5% and higher than those of male patients. According to the clinical diagnosis, success rate in stable angina was 93.7% and higher than those of post myocardial infarction angina, unstable angina and acute myocardial infarcrion. Success rate of American Heart Association type C lesion was 65.5% and lower those of type A(95.7%), type B (89.%). There was significantly difference in preangioplasty luminal stenosis, elastic recoil and length of lesion between successful PTCA group and failed PTCA group. Success rate of lesion location at a bed >45° and presence of intracoronary thrombus were lower than than those of other angiographic findings. In coclusion, primary angioplasty success was affected by specific angiographic factors, Stenosis severity, thrombus, lesion location at a bend >45°, elastic recoil, and length of lesion were the principle of determinants of coronary angioplasty success rate.
A Case of Disappearing Symptoms Developed Repetitively in a Complete Atrioventricular Block Patient Implanted Bipolar Permanent Pacemaker After Converting It into Unipolar System.
Jun Young Kweon, Kyo Won Choi, Dong Gu Shin, Young Jo Kim, Bong Sup Shim, Hyun Woo Lee
Yeungnam Univ J Med. 1994;11(1):181-185.   Published online June 30, 1994
DOI: https://doi.org/10.12701/yujm.1994.11.1.181
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AbstractAbstract PDF
Pacemaker malfunctions are secondary to alterations of the preset pacing rate, irregular pacing failure of sensing, failure of cardiac capture or depolarization, and various combinations of these events. A 76 years old male patients was admitted due to pacemaker malfunction. 2 years ago, he was diagnosed as complete atrioventricular block. And then bipolar permanent pacemaker was implanted. Since then syncopal attack developed repetitivly. 12 lead ECG and 24 hour holter moniter monitoring, revealed pacing and sensing failure, thus we converted bipolar system into unipolar system. since then syncopal attack did not developed again.
Analysis of Polar Maps of Dipyridamole Stress/Rest Tc-MIBI Myocardial SPECT in 14 Healthy Young Men.
Ihn Ho Cho, Dong Gu Shin, Hyoung Woo Lee, Young Jo Kim, Bong Sup Shim, Hyun Woo Lee
Yeungnam Univ J Med. 1994;11(1):146-152.   Published online June 30, 1994
DOI: https://doi.org/10.12701/yujm.1994.11.1.146
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AbstractAbstract PDF
We performed the same day dipyridamole stress/rest myocardial SPECT in 14 healthy young men, reconstructed the polar maps according to Cedars-Sinal method and quantitated the radioactivity of myocardial wall. We divided the whole myocardium to 9 sectors. The latero-anterior wall contains the highest count. The infero-septal wall contains the lowest count. There isn't any significant differences of radioactivity in each segment between stress and rest polar map. The hemodynamic parameters after dipyridamole injection in the subjects were significantly changed except systolic blood pressure : the heart rate was increased and diastolic blood pressure was decreased. Adverse effects were reported in 85.7%. We suggest that these data can be used to dectect perfusion defect in the coromary artery disease.
Toxic effect of azalea extract on cardiovascular system.
Jun Ha Chun, Sung Bok Chung, Seung Ho Kang, Yeong Jo Kim, Bong Sub Shim, Hyun Woo Lee, Dong Gu Shin, Jong Min Park
Yeungnam Univ J Med. 1991;8(2):52-62.   Published online December 31, 1991
DOI: https://doi.org/10.12701/yujm.1991.8.2.52
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AbstractAbstract PDF
The toxic effect of azalea extract, especially on cardiovascular system, in relatively unclear. The purpose of this study is to study the possible underlying mechanism and effect of toxic ingredient of azalea on cardiovascular system. The 71 healthy rabbits were divided into 10 groups: In group as preliminary study; 4 cc of normal saline was administered intravenously (N); 0.7 gm/kg and 1.0 gm/kg of azalea extract was administered respectively in the same route, volume (A1, A2); atropine was administered intravenously (A); after pretreatment with atropine (0.04 mg/kg) to block parasympathetic system, azalea extract was injected like the above groups (AA1, AA2); normal saline, 0.7 gm/kg and 1.0 gm/kg of azalea extract were administered respectively with 0.2 cc (1:1000) epinephrine (E0, E1, E2). We measured the following indices at I minute interval during first 10 minutes and then 10 minute interval during next 30 minutes: RR interval, QTc interval, maximal systolic and diastolic pressure drop with occurring time and presence of significant arrhythmia. The results were as follows: 1. The changes of RR interval, QTc interval were significantly increased in groups by Azalea extract. The blood pressure change was significantly decreased in groups by Azalea extract. There were no significant differences according to dosage of Azalea extract. 2. The changes of RR interval, blood pressure were significant differences between administration of atropine and Azalea extract after pretreatment with atropine, but not in the change of QTc interval. 3. There were no significant differences in the change of RR interval, ATc interval, blood pressure drop according to pretreatment with atropine. 4. The interaction between epinephrine and Azalea extract was not noted by the effect of epinephrine itself. 5. The ST change by 0.7 gm/kg, 1.0 gm/kg of Azalea extract was revealed in 1 case (14.0%), 7 case (100%), respectively. 6. Most of all cases with arrhythmia, ventricular tachycardia, ventricular fibrillation, were noted in the group by epinephrine, except on case by Azalea extract (1.0 gm/kg). It was idioventricular rhythm. In conclusion, azalea extract has negative inotropic and chronotropic effect with arrhythmogenic potential possibly through direct myocardial ischemia or injury but we can't be absolutely exclusive of actions of autonomic nervous system, especially parasympathetic nervous system.
Mutagenicity of Human Urine Excreted after Ingestion of Roast Beef.
Dong Gu Shin, Jung Hee Kim, Jae Ryong Kim
Yeungnam Univ J Med. 1987;4(2):105-111.   Published online December 31, 1987
DOI: https://doi.org/10.12701/yujm.1987.4.2.105
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AbstractAbstract PDF
This study was undertaken to observe the mutagenic occurrence in urine excreted after the ingestion of roast beef. Two healthy nonsmoker persons of both sex were selected for this test, employing two strains (TA98, TA100) of Salmonella typhimurium according to Ames' method. The mutagenic activity began to appear in urine of both sex three hours after ingestion of 300 g of roast beef, gradually increasing until 6 hours and declining thereafter.
A case of Behcet's Disease with CNS Manifestations.
Dong Gu Shin, Myeong Gu Go, Kyeung Woo Yun, Chong Suhi Kim
Yeungnam Univ J Med. 1986;3(1):307-311.   Published online December 31, 1986
DOI: https://doi.org/10.12701/yujm.1986.3.1.307
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AbstractAbstract PDF
Behcet's disease was originally described as a triple symptom complex of oral aphthous ulceration, genital ulceration, and hypopyon iritis. It is now known to have a wide systemic manifestations. Among them, the central nervous system involvement should be diagnosed earlier because of it's lethal potential. Recently the authors experienced a case of Behcet's disease with CNS involvement. A 51-year-old female patient was admitted due to deterioration of mentality and generalized ache since 2 years prior to admission. The findings on physical examination were compatible with Behcet's disease, but without cerebrospinal pleocytosis. The manifestations were improved with medications of prednisolone, chlorambucil, colchicines, but relapsed relapsed 2 months later during subsequent tapering of prednisolone and chlorambucil. The patient is now on medication again. A case of Behcet's disease with CNS manifestations is reported with review of literature.

JYMS : Journal of Yeungnam Medical Science