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JYMS : Journal of Yeungnam Medical Science

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Min Jung Cho 3 Articles
Meta-analysis on risk stratification of malignant ventricular tachyarrhythmic events in arrhythmogenic right ventricular cardiomyopathy
Young Eun Roh, Hyun Ji Jang, Min Jung Cho
Yeungnam Univ J Med. 2017;34(2):208-215.   Published online December 31, 2017
DOI: https://doi.org/10.12701/yujm.2017.34.2.208
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AbstractAbstract PDF
BACKGROUND
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a cardiomyopathy characterized by predominant right ventricular fibro-fatty replacement, right ventricular dysfunction and ventricular arrhythmias. It is a rare but important cause of sudden cardiac death in children and young adults. A meta-analysis on risk stratification of major ventricular tachyarrhythmic events indicating the need for implantable cardioverter defibrillator therapy in ARVC was performed. METHODS: The pubmed database was searched from its inception to May 2015. Of the 433 citations identified, 12 were included in this meta-analysis. Data regarding major ventricular tachyarrhythmic events were retrieved in 817 subjects from the studies. For the variables, a combined odds ratio (OR) was calculated using a fixed-effects meta-analysis. RESULTS: Extensive right ventricular dysfunction (OR, 2.44), ventricular late potential (OR, 1.66), inducible ventricular tachyarrhythmia during electrophysiology study (OR, 3.67), non-sustained ventricular tachycardia (OR, 3.78), and history of fatal event/sustained VT (OR, 5.66) identified as significant risk factors (p < 0.0001). CONCLUSION: This meta-analysis shows that extensive right ventricular dysfunction, ventricular late potential, inducible ventricular tachyarrhythmia during electrophysiological study, non-sustained ventricular tachycardia, and history of sustained ventricular tachycardia/fibrillation are consistently reported risk factors of major ventricular tachyarrhythmic events indicating implantable cardioverter defibrillator therapy in patients with ARVC.
QT dispersion in children with Kawasaki disease.
Bo Kyung Song, Kyoung Sung, Min Jung Cho, Hyoung Doo Lee
Yeungnam Univ J Med. 2014;31(2):94-98.   Published online December 31, 2014
DOI: https://doi.org/10.12701/yujm.2014.31.2.94
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AbstractAbstract PDF
BACKGROUND
We analyzed the changes in QT dispersion (QTd) in children with Kawasaki disease (KD), and determined the presence of repolarization abnormality in these children even in the absence of coronary artery abnormalities. METHODS: Ninety-one children with KD and 20 healthy controls were enrolled in this retrospective study. Serial echocardiographic and electrocardiographic (ECG) measurements in the beginning of treatment, 2nd month and 6th month after the diagnosis were compared. Fifty-one of 91 children had at least 2 serial ECG data. The number of patients who had 3 consecutive ECG data was 23. RESULTS: Among the 67 KD patients with no coronary artery changes, the consecutive mean QTd values were 41.86 ms, 37.84 ms, and 25.47 ms, respectively (26 ms for controls). In the analysis of changes among KD patients without coronary artery abnormalities, QTd showed a significant decrease with time (p=0.01). Especially, the 1st month and the 6th month QTd values were significantly different (p=0.028). The mean QTd values in KD patients with coronary artery changes were significantly higher than those in KD patients with no coronary artery changes at each time (1st, 2nd, and 6th month exam). CONCLUSION: QTd is significantly increased in children during the early stage of KD. Repolarization abnormality may exist during the acute stage of KD, regardless of the echocardiographic changes.
A case of Dubin-Johnson Syndrome.
Ae Jung Kwak, Mi jung Kim, Min Jung Cho, Kwang Hae Choi
Yeungnam Univ J Med. 2002;19(1):68-72.   Published online June 30, 2002
DOI: https://doi.org/10.12701/yujm.2002.19.1.68
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Dubin-Johnson Syndrome is a form of benign, familial idiopathic jaundice presenting with chronic intermittentconjugated hyperbilirubinnmia and a melamin-like pigment has been found in the parenchymal liver cells. This disorder is rarely diagnosed in the neonatal period. We report a case of Dubin-Johnson syndrome presenting with neonatal cholestasis.

JYMS : Journal of Yeungnam Medical Science