Dong Cheul Han

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BACKGROUND In the general population, the incidence of bundle branch block (BBB) is relatively low, and its effects on long-term prognosis have not been established. Previous studies on the incidence and correlation of BBB to clinical factors have produced conflicting results. However, the incidence of BBB was strongly related to age. This study aimed to(More)
BACKGROUND AND OBJECTIVES The purposes of this study are 1) to investigate the relationship between resting baseline Pd/Pa, determined by the ratio of the pressures proximal (Pa) and distal (Pd) to the target lesion before, inducing hyperemia and fractional flow reserve (FFR) and 2) to identify a resting baseline Pd/Pa range that might reliably preclude the(More)
Total creatine activity was greatly increased, and creatine kinase MB isoenzyme was measurable in the serum of a patient with dermatomyositis. In contrast, total CK activity in an extract of skeletal muscle from this patient was markedly decreased as compared with normal muscle extracts, but contained about the normal proportion of the MB isoenzymes, 1.5%.(More)
BACKGROUND Various studies have reported that the administration of adenosine (ADO) in cardioplegia reduces myocardial ischemic injury, but this timing may not utilize ADO's potential against myocardial reperfusion injury. This study tested the hypothesis that ADO-supplemented blood cardioplegia (BCP) or ADO administered during reperfusion reduces(More)
A case of pulmonary dirofilariasis in a 69-year-old woman is presented. A review of the literature revealed 56 documented cases. As in most cases of pulmonary dirofilariasis, our patient presented roentgenologically a single noncalcified coin lesion and required thoracotomy for diagnosis. The gross and histologic characteristics of the lesion, the life(More)
The report concerns a 21-year-old woman who, after having taken oral contraceptives for three months, developed the Budd-Chiari syndrome as the results of a widespread chronic obliterative process involving the intrahepatic venous system. The diagnosis was established by liver biopsy. She was treated with supportive measures and completely recovered after(More)
Coronary artery embolism is an infrequent cause of acute myocardial infarction. In addition, native aortic valve thrombosis is a very rare condition. We report a case of native valve thrombosis causing acute ST-elevation myocardial infarction in healthy middle-aged man who has no established cardiovascular risk factor. We diagnosed native aortic valve(More)
UNLABELLED It is common to suspect Eisenmenger syndrome when patients with atrial septal defect (ASD) show cyanosis and clubbing. However, ASD accompanying Ebstein's anomaly frequently shows cyanosis without severe pulmonary hypertension, especially in the early period after birth. So the medical decision to decline surgical treatment in those patients(More)
A 41-year-old man was admitted to the emergency department for sudden-onset right hemiparesis. He had no history of diabetes mellitus, hypertension, arrhythmias, or stroke. However, he had a 20-year history of smoking, dyslipidemias, and hypothyroidism (laboratory test on admission revealed elevated thyrotropin [13.16 ␮IU/mL; reference, 0.27 to 4.2], normal(More)
To improve the operation lifetime of organic solar cell, two different diphenylacetylene polymers were tested as UV blocking layer. One of them showed either stronger UV absorption or a relatively intense fluorescence emission in the visible region which is well overlapped with the absorption of P3HT in the OSC. The diphenylacetylene polymer film(More)