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            • KCI등재후보SCOPUS
            • KCI등재후보SCOPUS
            • KCI등재SCOPUS

              Ventricular tachycardia associated syncope in patient of variant angina without chest pain

              김수진,정지영,박태호 대한심장학회 2016 Korean Circulation Journal Vol.46 No.1

              A 68-year-old man was admitted for a syncope workup. After routine evaluation, he was diagnosed with syncope of an unknown cause and was discharged from the hospital. He was readmitted due to dizziness. On repeated Holter monitoring, polymorphic ventricular tachycardia was detected during syncope. We performed intracoronary ergonovine provocation test; severe coronary spasm was induced at 70% stenosis of the proximal left anterior descending artery. The patient was treated with percutaneous coronary intervention. We present a rare case of syncope induced by ventricular arrhythmia in a patient with variant angina without chest pain.

            • KCI등재SCOPUS

              Differences between Korea and Japan in Physician Decision Making Regarding Permanent Pacemaker Implantation

              Sung-Won,Jang,Robert,W,Rho,Tae-Seok,Kim,sung-hwan,kim,woo-seung,shin,Yong-Seog,Oh,Man,Young,Lee,Eiwa,Zen,Tai-Ho,Rho,Ji-Hoon,Kim 대한심장학회 2016 Korean Circulation Journal Vol.46 No.5

              Background and Objectives: The number of permanent pacemakers (PPMs) implanted in patients in Japan and Korea differs significantly. We aimed to investigate the differences in decision making processes of implanting a PPM. Materials and Methods: Our survey included 15 clinical case scenarios based on the 2008 AHA/ACC/HRS guidelines for device-based therapy of cardiac rhythm abnormalities (class unspecified). Members of the Korean and Japanese Societies of Cardiology were asked to rate each scenario according to a 5-point scale and to indicate their decisions for or against implantation. Results: Eighty-nine Korean physicians and 192 Japanese physicians replied to the questionnaire. For the case scenarios in which there was a class I indication for PPM implantation, the decision to implant a PPM did not differ significantly between the two physician groups. However, the Japanese physicians were significantly more likely than the Korean physicians to choose implantation in class IIa scenarios (48% vs. 37%, p<0.001), class IIb scenarios (40% vs. 19%, p<0.001), and class III scenarios (36% vs. 18%, p<0.001). These results did not change when the cases were categorized based on disease entity, such as sinus node dysfunction and conduction abnormality. Conclusion: Korean physicians are less likely than Japanese physicians to favor a PPM implantation when considering a variety of clinical case scenarios, which probably contributes to the relatively small number of PPMs implanted in patients in Korea as compared with those in Japan.

            • KCI등재SCOPUS

              Early Detection of Kawasaki Disease in Infants

              강지해,홍승지,서인애,곽민하,조승만,김두권,최성민,이동석 대한심장학회 2015 Korean Circulation Journal Vol.45 No.6

              Background and Objectives: This study aimed to investigate the clinical characteristics of infantile Kawasaki disease (KD), and toevaluate early diagnostic features of KD in febrile infants. Subjects and Methods: We retrospectively reviewed the medical records of 64 KD patients from January 2010 to October 2014. Therewas an analysis of the clinical, laboratory data of the infants versus children groups. Furthermore, the clinical and laboratory data ofinfantile KD patients were compared with 16 infants who were admitted for other acute febrile diseases. Results: A total of 64 patients with KD were identified; 20 (31.3%) were infants; 44 (68.8%) were >1 year old children. Incomplete KDwas much more common in infants (n=13, 65.0%) than in children group (n=14, 31.8%) (p=0.013). The infants were characterized bysignificantly higher rates of inflammatory changes at the Bacille Calmett-Guérin (BCG) inoculation site (p<0.001), but lower rates ofchanges in the extremities (p=0.029) and cervical lymphadenopathy (p=0.006). The serum levels of platelet after 1 week (p=0.005),C-reactive protein (p=0.038), and N-terminal pro-brain natriuretic peptide (NT-proBNP) (p=0.026) were all significantly higher in theinfants group. Comparing the infants with KD versus the other acute febrile diseases, there were significantly higher serum levels oferythrocyte sedimentation rate (p=0.002), C-reactive protein (p=0.046) and NT-proBNP (p=0.001) for the infants with KD group. Conclusion: BCGitis and higher levels of NT-proBNP can be helpful for early diagnosis of the incomplete KD in infants, and may be agood predictor of KD in acute febrile infants, when combined with other acute phase reactants.

            • KCI등재SCOPUS

              Myocardial Infarction Type 4b in Human Immunodeficiency Virus-Infected Patient

              Aneta,Cybula-Walczak,Filip,M.,Szymanski,Anna,E.,Platek,Grzegorz,Karpinski 대한심장학회 2014 Korean Circulation Journal Vol.44 No.1

              We report a case of a 52-year-old human immunodeficiency virus (HIV)-infected male patient receiving combined antiretroviral therapy(cART), who presented with acute ST-elevation myocardial infarction (STEMI). He was properly treated (e.g., prescribed anti-coagulationdrugs: aspirin, clopidogrel, enoxaparin) and discharged. After 1.5 months, another STEMI related with in-stent thrombosis took place. ThecART scheme was altered, resulting in no further cardiac events in the follow-up period, with undetectable levels of HIV ribonucleic acid. This case highlights the association between HIV infection and the specific drugs of cART, and the risk of cardiovascular disease develop -ment.

            • KCI등재SCOPUS

              Changes in Patient Characteristics of Infective Endocarditis with Congenital Heart Disease: 25 Years Experience in a Single Institution

              백재은,박수진,우샛별,최재영,정조원,김남균 대한심장학회 2014 Korean Circulation Journal Vol.44 No.1

              Background and Objectives: The profile of infective endocarditis (IE) has changed and is now showing an increasing prevalence of IE among congenital heart disease (CHD) patients. We studied the change of clinical profiles of IE over the past 25 years in patients with CHD at a single institution. Subjects and Methods: We reviewed medical records retrospectively for 325 patients diagnosed with IE between January 1, 1987, and March 31, 2012. We analyzed and compared the differences in patient characteristics and outcomes between 1987-2000 (group A) and 2001-2012 (group B). Results: Over the 25-year period, 93 cases of IE in CHD patients were diagnosed (59 cases in group A and 34 cases in group B). Ventricular septal defect was the most common underlying cardiac disease observed during the entire period. The most common causative pathogen was Streptococcus in both groups. Group A contained 16 cases (27.1%) that had undergone cardiac surgery, whereas this number was 19 (55.8%) in group B. The number of patients who had undergone palliative care or surgery using prosthetic materials was higher among group B patients (p<0.001). Surgical procedures due to uncontrolled infection were performed in three cases in group A and 10 cases in group B. Conclusion: Infective endocarditis and CHD show a close correlation, and the profile of IE patients can change in line with an increase in the survival rate of patients with complex CHD and the improvement of surgical techniques. Ongoing reassessment and the systematic management of these patients is crucial in the prevention and treatment of IE.

            • KCI등재SCOPUS

              Simultaneous Thrombosis of the Left Anterior Descending Artery and the Right Coronary Artery in a 34-Year-Old Crystal Methamphetamine Abuser

              Isa,Khaheshi,Mohammad,Parsa,Mahjoob,Shooka,Esmaeeli,Vahid,Eslami,Habib,Haybar 대한심장학회 2015 Korean Circulation Journal Vol.45 No.02

              This case report underscores that crystal methamphetamine abuse is an important cause of multivessel coronary thrombosis and raisesdoubts about the therapeutic options. The patient was a 34-year-old smoker and crystal methamphetamine abuser with no significantmedical history, who presented with retrosternal chest pain associated with cold sweats. Twelve-lead electrocardiogram revealed diffuseST-segment elevation in I, II, AVL, AVF, and V 2–6 leads. He underwent urgent coronary angiography and it showed Thrombolysis in MyocardialInfarction (TIMI) grade 3 flow in coronary arteries and presence of a thrombus in the left anterior descending artery (LAD) and the rightcoronary artery (RCA). The patient underwent medical therapy with antiplatelet agents and anticoagulants. Repeat coronary angiographyafter three months of dual therapy with warfarin and aspirin did not show any thrombus or any significant lesion in the RCA and the LADhaving TIMI grade 3 flow.

            • KCI등재SCOPUS

              Prevalence of Masked Hypertension: a Population-Based Survey in a Large City by Using 24-Hour Ambulatory Blood Pressure Monitoring

              Moo-Yong,Rhee,Sun-Woong,Kim,Eun-Hee,Choi,김지현,Deuk-Young,Nah,Sung-Joon,Shin,Namyi,Gu 대한심장학회 2016 Korean Circulation Journal Vol.46 No.5

              Background and Objectives: We estimated the prevalence of hypertension and hypertension subtypes in a large semi-urban city in Korea, using 24-hour ambulatory blood pressure monitoring (ABPM) in a randomly selected sample population. Subjects and Methods: A random sample (aged 20-65 years) from a city with an adult population of approximately 600000 was selected by using a list-assisted random digit dialing method. The 24-hour ABPM and conventional blood pressure measurement (CBPM) of these individuals were obtained. Results: Among the 496 participants, valid 24-hour ABPM and CBPM were obtained from 462 (93%) individuals. The estimated prevalence of hypertension in Goyang was 17.54% by CBPM and 32.70% by 24-hour ABPM (p<0.01). In the age stratified analysis, both CBPM and 24-hour ABPM showed increased prevalence of hypertension with age. The estimated prevalence of masked hypertension was 16.22% and that of white-coat hypertension was 1.08%. Men had a higher prevalence of masked hypertension than women (20.79% vs. 11.86%, p=0.0295). The estimated prevalence of masked hypertension was 17.5%, 20.58%, 24.34%, and 13.29% in the age categories of 30s, 40s, 50s, and 60s, respectively. The estimated prevalence of masked uncontrolled hypertension was 26.79% in patients with hypertension who were taking antihypertensive medications. Conclusion: The estimated prevalence of hypertension by 24-hour ABPM was higher than that by CBPM, revealing high prevalence of masked hypertension. The high prevalence of masked hypertension supports the adoption of ABPM in the national population survey and clinical practice to improve public health and reduce health care costs.

            • KCI등재SCOPUS

              Epidemiology of Heart Failure in Korea: Present and Future

              Jung,Hoon,Lee,Nam-Kyoo,Lim,Myeong,Chan,Cho,Hyun-Young,Park 대한심장학회 2016 Korean Circulation Journal Vol.46 No.5

              Background and Objectives: Heart failure (HF) is an important healthcare issue because of its high mortality, morbidity, and healthcare costs. The number of HF patients is increasing worldwide as a consequence of aging of the population. However, there are limited studies on the prevalence of HF in Korea. This study aimed to estimate the prevalence of HF, its comorbidities, and the projected population with HF in the future. Materials and Methods: The prevalence and comorbidity estimates of HF were determined using data from the 2002-2013 National Sample Cohort based on the National Health Information Database. We calculated the projected prevalence of HF by multiplying the estimated prevalence in 2013 by the projected population counts for 2015-2040. Results: The prevalence of HF in Korea was estimated to be 1.53% in 2013. The prevalence of HF in Korea is expected to increase by 2-fold, from 1.60% in 2015 to 3.35% in 2040. By 2040, more than 1.7 million Koreans are expected to have HF. In terms of comorbid diseases of HF, ischemic heart disease, hypertension, and diabetes mellitus were common (45.4%, 43.6%, and 49.1% in 2013, respectively). The prevalence rates of arrhythmia, valvular disease, and cardiomyopathy in HF patients were approximately 22.6%, 5.6%, and 3.1% in 2013, respectively. Conclusion: This is the first nationwide report in Korea to demonstrate the prevalence and comorbidities of HF. These data may be used for the prevention and management of HF in Korea.

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