Duk Hyun Kang

Summary

Affiliation: University of Ulsan
Country: Korea

Publications

  1. ncbi request reprint Early surgery versus conventional treatment for asymptomatic severe mitral regurgitation: a propensity analysis
    Duk Hyun Kang
    Division of Cardiology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea Electronic address
    J Am Coll Cardiol 63:2398-407. 2014
  2. pmc Predictors of echocardiographic progression in patients with mild aortic stenosis
    Jeong Sook Seo
    Department of Cardiology, College of Medicine, Inje University, Pusan Paik Hospital, Busan, Korea
    Korean Circ J 41:649-53. 2011
  3. doi request reprint Early percutaneous mitral commissurotomy vs. conventional management in asymptomatic moderate mitral stenosis
    Duk Hyun Kang
    Division of Cardiology, Asan Medical Center, College of Medicine, University of Ulsan, 388 1 Poongnap dong, Songpa Ku, Seoul, Republic of Korea
    Eur Heart J 33:1511-7. 2012
  4. doi request reprint Early surgery versus conventional treatment for infective endocarditis
    Duk Hyun Kang
    Division of Cardiology, Asan Medical Center, University of Ulsan, Seoul, South Korea
    N Engl J Med 366:2466-73. 2012
  5. doi request reprint Comparison of early surgery versus conventional treatment in asymptomatic severe mitral regurgitation
    Duk Hyun Kang
    Division of Cardiology, Cardiac Surgery, Biostatistics, Asan Medical Center, College of Medicine, University of Ulsan, 388 1, Poongnap dong, Songpa Ku, Seoul, Korea 138 736
    Circulation 119:797-804. 2009
  6. ncbi request reprint Mitral valve repair versus revascularization alone in the treatment of ischemic mitral regurgitation
    Duk Hyun Kang
    Division of Cardiology, University of Ulsan, Asan Medical Center, Songpa ku Poongnap dong 388 1, Seoul 138 736, Korea
    Circulation 114:I499-503. 2006
  7. doi request reprint Percutaneous versus surgical revascularization in patients with ischemic mitral regurgitation
    Duk Hyun Kang
    Division of Cardiology, Asan Medical Center, College of Medicine, University of Ulsan, 388 1, Poongnap dong, Songpa Ku, Seoul, Korea 138 736
    Circulation 124:S156-62. 2011
  8. doi request reprint Early surgery versus conventional treatment in asymptomatic very severe aortic stenosis
    Duk Hyun Kang
    Division of Cardiac Surgery, Cardiology, Biostatistics, Asan Medical Center, College of Medicine, University of Ulsan, 388 1, Poongnap dong, Songpa Ku, Seoul, Korea 138 736
    Circulation 121:1502-9. 2010
  9. ncbi request reprint Efficacy of myocardial contrast echocardiography in the diagnosis and risk stratification of acute coronary syndrome
    Duk Hyun Kang
    The Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan, Seoul, Korea
    Am J Cardiol 96:1498-502. 2005
  10. ncbi request reprint Intravascular ultrasound analysis of nonstented adjacent segments in diffuse in-stent restenosis treated with radiation therapy with a rhenium-188-filled balloon
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
    Catheter Cardiovasc Interv 58:428-33. 2003

Collaborators

Detail Information

Publications98

  1. ncbi request reprint Early surgery versus conventional treatment for asymptomatic severe mitral regurgitation: a propensity analysis
    Duk Hyun Kang
    Division of Cardiology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea Electronic address
    J Am Coll Cardiol 63:2398-407. 2014
    ..This study sought to compare long-term outcomes of early surgery with a conventional treatment strategy in asymptomatic patients with severe mitral regurgitation (MR)...
  2. pmc Predictors of echocardiographic progression in patients with mild aortic stenosis
    Jeong Sook Seo
    Department of Cardiology, College of Medicine, Inje University, Pusan Paik Hospital, Busan, Korea
    Korean Circ J 41:649-53. 2011
    ..The factors related to the progression of mild aortic stenosis (AS) remain unknown. We wanted to evaluate the long-term outcomes and predictors of echocardiographic progression in patients with mild AS...
  3. doi request reprint Early percutaneous mitral commissurotomy vs. conventional management in asymptomatic moderate mitral stenosis
    Duk Hyun Kang
    Division of Cardiology, Asan Medical Center, College of Medicine, University of Ulsan, 388 1 Poongnap dong, Songpa Ku, Seoul, Republic of Korea
    Eur Heart J 33:1511-7. 2012
    ..We sought to compare the long-term outcomes of early preemptive PMC and a conventional treatment strategy...
  4. doi request reprint Early surgery versus conventional treatment for infective endocarditis
    Duk Hyun Kang
    Division of Cardiology, Asan Medical Center, University of Ulsan, Seoul, South Korea
    N Engl J Med 366:2466-73. 2012
    ..We conducted a trial to compare clinical outcomes of early surgery and conventional treatment in patients with infective endocarditis...
  5. doi request reprint Comparison of early surgery versus conventional treatment in asymptomatic severe mitral regurgitation
    Duk Hyun Kang
    Division of Cardiology, Cardiac Surgery, Biostatistics, Asan Medical Center, College of Medicine, University of Ulsan, 388 1, Poongnap dong, Songpa Ku, Seoul, Korea 138 736
    Circulation 119:797-804. 2009
    ..The optimal timing of surgical intervention in asymptomatic patients with severe mitral regurgitation is unclear. We therefore compared the long-term results of early surgery with a conventional treatment strategy...
  6. ncbi request reprint Mitral valve repair versus revascularization alone in the treatment of ischemic mitral regurgitation
    Duk Hyun Kang
    Division of Cardiology, University of Ulsan, Asan Medical Center, Songpa ku Poongnap dong 388 1, Seoul 138 736, Korea
    Circulation 114:I499-503. 2006
    ..We sought to test the hypothesis that MV repair with CABG is superior to CABG alone in improving MR without increasing operative or long-term mortality...
  7. doi request reprint Percutaneous versus surgical revascularization in patients with ischemic mitral regurgitation
    Duk Hyun Kang
    Division of Cardiology, Asan Medical Center, College of Medicine, University of Ulsan, 388 1, Poongnap dong, Songpa Ku, Seoul, Korea 138 736
    Circulation 124:S156-62. 2011
    ..The proper way of revascularization remains controversial in patients with ischemic mitral regurgitation (IMR). We sought to compare the long-term results of percutaneous coronary intervention (PCI) and surgical revascularization in IMR...
  8. doi request reprint Early surgery versus conventional treatment in asymptomatic very severe aortic stenosis
    Duk Hyun Kang
    Division of Cardiac Surgery, Cardiology, Biostatistics, Asan Medical Center, College of Medicine, University of Ulsan, 388 1, Poongnap dong, Songpa Ku, Seoul, Korea 138 736
    Circulation 121:1502-9. 2010
    ..The optimal timing of surgical intervention remains controversial in asymptomatic patients with very severe aortic stenosis. We therefore compared the long-term results of early surgery and a conventional treatment strategy...
  9. ncbi request reprint Efficacy of myocardial contrast echocardiography in the diagnosis and risk stratification of acute coronary syndrome
    Duk Hyun Kang
    The Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan, Seoul, Korea
    Am J Cardiol 96:1498-502. 2005
    ....
  10. ncbi request reprint Intravascular ultrasound analysis of nonstented adjacent segments in diffuse in-stent restenosis treated with radiation therapy with a rhenium-188-filled balloon
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
    Catheter Cardiovasc Interv 58:428-33. 2003
    ..1.3 mm(2), respectively (P < 0.001). In conclusion, compared with the changes of vessel shrinkage in the control group, significant vessel enlargement occurred in the nonstented adjacent segments that received radiation therapy...
  11. ncbi request reprint Comparison of coronary plaque rupture between stable angina and acute myocardial infarction: a three-vessel intravascular ultrasound study in 235 patients
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
    Circulation 110:928-33. 2004
    ..We evaluated the incidence and predictors of single and multiple plaque ruptures in acute myocardial infarction (AMI) and stable angina pectoris (SAP)...
  12. ncbi request reprint Intravascular ultrasound assessment of patterns of arterial remodeling in the absence of significant reference segment plaque burden in patients with coronary artery disease
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, 388 1 Poongnap2 Dong, Songpa Gu, Seoul 138 736, South Korea
    J Am Coll Cardiol 42:806-10. 2003
    ..Intravascular ultrasound (IVUS) assessment of lesion remodeling compares lesions to reference segments. However, reference segments are rarely disease-free and, therefore, have also undergone remodeling changes...
  13. ncbi request reprint Echocardiographic and clinical characteristics of aortic regurgitation because of systemic vasculitis
    Jae Kwan Song
    Division of Cardiology, Asan Medical Center, University of Ulsan, College of Medicine, 388 1 Poongnap dong, Songpa Ku, Seoul, 138 040 South Korea
    J Am Soc Echocardiogr 16:850-7. 2003
    ..Although systemic vasculitis has been described as one cause of aortic regurgitation (AR), clinical features of this disease entity have not been fully characterized...
  14. ncbi request reprint Incidence, mechanism, predictors, and long-term prognosis of late stent malapposition after bare-metal stent implantation
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Cardiac Center, Asan Medical Center, Seoul, Korea
    Circulation 109:881-6. 2004
    ..Predictors and long-term prognosis of late stent malapposition (LSM) after bare-metal stent (BMS) implantation are unknown...
  15. ncbi request reprint Outcomes of medically treated patients with aortic intramural hematoma
    Jae Kwan Song
    Division of Cardiology, Asan Medical Center, Seoul, South Korea
    Am J Med 113:181-7. 2002
    ..However, the outcomes of patients with aortic intramural hematoma who are treated medically, including the remodeling process that occurs after an acute event, are not known...
  16. doi request reprint Restenosis and adverse clinical events after successful percutaneous mitral valvuloplasty: immediate post-procedural mitral valve area as an important prognosticator
    Jae Kwan Song
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, 388 1 Poongnap dong Songpa ku, Seoul 138 736, South Korea
    Eur Heart J 30:1254-62. 2009
    ..We sought to investigate the factors associated with restenosis and its potential association with late clinical deterioration after successful percutaneous mitral valvuloplasty (PMV)...
  17. ncbi request reprint Evaluation of left ventricular diastolic function after valve replacement in aortic stenosis using exercise Doppler echocardiography
    Jeong Sook Seo
    Inje University Busan Paik Hospital, Busan, South Korea
    Circ J 76:2792-8. 2012
    ..The aim of the present study was to evaluate the mechanism of diastolic dysfunction (DD) after aortic valve replacement (AVR) in patients with aortic stenosis (AS)...
  18. ncbi request reprint The site of plaque rupture in native coronary arteries: a three-vessel intravascular ultrasound analysis
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
    J Am Coll Cardiol 46:261-5. 2005
    ..We evaluated the axial location of plaque ruptures in native coronary arteries...
  19. ncbi request reprint Triple versus dual antiplatelet therapy after coronary stenting: impact on stent thrombosis
    Seung Whan Lee
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
    J Am Coll Cardiol 46:1833-7. 2005
    ..We evaluated safety and efficacy of triple antiplatelet therapy with aspirin, clopidogrel, or ticlopidine and cilostazol after coronary stenting...
  20. ncbi request reprint Late stent malapposition after drug-eluting stent implantation: an intravascular ultrasound analysis with long-term follow-up
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
    Circulation 113:414-9. 2006
    ..Late stent malapposition (LSM) after drug-eluting stent (DES) implantation has not been evaluated sufficiently in real-world practice...
  21. ncbi request reprint Comparison of simple and complex stenting techniques in the treatment of unprotected left main coronary artery bifurcation stenosis
    Young Hak Kim
    The Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
    Am J Cardiol 97:1597-601. 2006
    ..Compared with the complex stenting technique, the simple technique was technically easier and appeared to be more effective in improving long-term outcomes in patients with normal LCxs...
  22. ncbi request reprint Bail-out stenting for left main coronary artery dissection during catheter-based procedure: acute and long-term results
    Seung Whan Lee
    Department of Internal Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
    Clin Cardiol 27:393-5. 2004
    ..The optimal treatment of patients with left main coronary artery (LMCA) dissection during catheter-based procedure remains uncertain...
  23. ncbi request reprint Usefulness of the initial noninvasive imaging study to predict the adverse outcomes in the medical treatment of acute type A aortic intramural hematoma
    Jong Min Song
    Division of Cardiology, Asan Medical Center, University of Ulsan, College of Medicine, 388 1 Poongnap dong, Songpa Ku, Seoul 138 040 South Korea
    Circulation 108:II324-8. 2003
    ....
  24. ncbi request reprint Prospective comparison of coronary artery remodeling between acute coronary syndrome and stable angina in single-vessel disease: correlation between C-reactive protein and extent of arterial remodeling
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Cardiac Center, Asan Medical Center, Seoul, Korea
    Clin Cardiol 26:169-72. 2003
    ..However, no prospective IVUS study has been performed to demonstrate such relationship. The relationship between C-reactive protein (CRP) and coronary artery remodeling is unknown...
  25. doi request reprint Long-term outcomes of percutaneous mitral balloon valvuloplasty versus open cardiac surgery
    Jae Kwan Song
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    J Thorac Cardiovasc Surg 139:103-10. 2010
    ..We sought to compare long-term outcomes between percutaneous mitral valvuloplasty and open heart surgery...
  26. doi request reprint Peak systolic velocity of mitral annular longitudinal movement measured by pulsed tissue Doppler imaging as an index of global left ventricular contractility
    Jeong Sook Seo
    Asan Medical Center, University of Ulsan College of Medicine, 388 1 Poongnap dong Songpa gu, Seoul, South Korea
    Am J Physiol Heart Circ Physiol 298:H1608-15. 2010
    ..552, P < 0.001) and without (R(2) = 0.674, P < 0.001) coronary ligation. S' is a more sensitive index of global LV contractility than is LV EF, reflecting both LV longitudinal shortening and torsional deformation...
  27. ncbi request reprint Outcome of significant functional tricuspid regurgitation after percutaneous mitral valvuloplasty
    Jong Min Song
    Division of Cardiology, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, South Korea
    Am Heart J 145:371-6. 2003
    ..The outcome of significant functional tricuspid regurgitation (TR) associated with mitral stenosis (MS) after percutaneous mitral valvuloplasty (PMV) remains to be clarified...
  28. ncbi request reprint Elevated homocysteine levels might be associated with coronary artery remodeling in patients with stable angina: an intravascular ultrasound study
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
    Clin Cardiol 25:225-9. 2002
    ..The relationship between plasma biologic markers and coronary artery remodeling is unknown. Hypothesis: Plasma biologic markers are associated with coronary artery remodeling...
  29. ncbi request reprint Percutaneous mitral valvuloplasty versus surgical treatment in mitral stenosis with severe tricuspid regurgitation
    Hyun Song
    Division of Cardiology, Asan Medical Center, College of Medicine, University of Ulsan, 388 1, Poongnap dong, Songpa Ku, Seoul, Korea 138 736
    Circulation 116:I246-50. 2007
    ..However, it remains unclear whether mitral valve (MV) surgery combined with surgical correction of TR is the better treatment option than PMV in patients with severe MS and severe functional TR...
  30. ncbi request reprint Extra-stent vascular remodeling in in-stent restenosis after 188Re-MAG3 radiation therapy
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Cardiac Center, Asan Medical Center, 388 1 Poongnap dong, Songpa Gu, 138 736, Seoul, South Korea
    Int J Cardiol 92:187-91. 2003
    ..The correlation between the extent of extra-stent plaque proliferation and that of intimal hyperplasia (IH) in in-stent restenosis in patients who received beta-radiation therapy as well as conventional therapy has also not been studied...
  31. ncbi request reprint Usefulness of ventricular longitudinal contractility assessed by Doppler tissue imaging in the prediction of reverse remodeling in patients with severe left ventricular systolic dysfunction
    Soo Jin Kang
    Division of Cardiology, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, South Korea
    J Am Soc Echocardiogr 19:178-84. 2006
    ..We sought to test if assessment of ventricular longitudinal contractility (LC) by Doppler tissue imaging (DTI) can predict reverse remodeling (RR) of left ventricular (LV) dysfunction resulting from medical treatment...
  32. ncbi request reprint Systolic and diastolic regional myocardial motion of pacing-induced versus idiopathic left bundle branch block with and without left ventricular dysfunction
    Soo Jin Kang
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, 388 1 Poongnap dong Songpa ku, Seoul 138 040, South Korea
    Am J Cardiol 93:1243-6. 2004
    ..0 +/- 0.6%). Diastolic asynchrony was the only independent factor that correlated with LVEF (r = -0.64, p <0.001). Thus, idiopathic LBBB with LV dysfunction is characterized not only by systolic but also by diastolic asynchrony...
  33. ncbi request reprint Relation between residual plaque burden after stenting and six-month angiographic restenosis
    Myeong Ki Hong
    Department of Medicine, College of Medicine, University of Ulsan, Cardiac Center, Asan Medical Center, Seoul, South Korea
    Am J Cardiol 89:368-71. 2002
    ..031). In conclusion, residual plaque burden outside the stent might not predict angiographic restenosis. IVUS stent area was the only independent predictor of angiographic restenosis...
  34. ncbi request reprint Long-term outcomes of significant mitral regurgitation after percutaneous mitral valvuloplasty
    Mi Jeong Kim
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, 388 1 Poongnap dong Songpa ku, Seoul 138 736 South Korea
    Circulation 114:2815-22. 2006
    ..We therefore analyzed long-term prognostic factors of significant MR after PMV...
  35. ncbi request reprint Paclitaxel coating reduces in-stent intimal hyperplasia in human coronary arteries: a serial volumetric intravascular ultrasound analysis from the Asian Paclitaxel-Eluting Stent Clinical Trial (ASPECT)
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Songpa Gu, Seoul, Korea
    Circulation 107:517-20. 2003
    ..The aim of this study was to use serial volumetric intravascular ultrasound (IVUS) to evaluate the effect of a paclitaxel coating on in-stent intimal hyperplasia (IH)...
  36. ncbi request reprint Early and late clinical outcomes after rotational atherectomy with stenting versus rotational atherectomy with balloon angioplasty for complex coronary lesions
    Seung Whan Lee
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, 388 1 Poongnap dong, Songpa Gu, Seoul, 138 736, Korea
    J Invasive Cardiol 16:406-9. 2004
    ..Compared with rotational atherectomy plus balloon angioplasty, routine stenting after rotational atherectomy does not provide additional benefits in the clinical outcomes in complex coronary lesions...
  37. pmc Comparison of the clinical features of apical hypertrophic cardiomyopathy versus asymmetric septal hypertrophy in Korea
    Hyun Suk Yang
    Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
    Korean J Intern Med 20:111-5. 2005
    ..We sought to test whether patients with apical hypertrophic cardiomyopathy (APH) have different clinical features compared to those with typical asymmetric septal hypertrophy (ASH)...
  38. ncbi request reprint Late intravascular ultrasound findings of patients treated with brachytherapy for diffuse in-stent restenosis
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
    Catheter Cardiovasc Interv 63:208-14. 2004
    ..However, quantitative evidence of late catch-up was evident in most patients and was significantly associated with 24-month TLR in some patients...
  39. doi request reprint Distal aortic intramural hematoma: clinical importance of focal contrast enhancement on CT images
    Gyung Min Park
    Divisions of Cardiology and Radiology, Asan Medical Center, University of Ulsan College of Medicine, 388 1 Poongnap dong Songpa gu, Seoul 138 736, South Korea
    Radiology 259:100-8. 2011
    ..To investigate the prevalence, fate, and effect of focal contrast enhancement lesion within the hematoma on contrast material-enhanced computed tomographic (CT) images in patients with distal aortic intramural hematoma (IMH)...
  40. ncbi request reprint Factors affecting accuracy of ventricular volume and ejection fraction measured by gated tl-201 myocardial perfusion single photon emission computed tomography
    Moonsun Pai
    Department of Nuclear Medicine, University of Ulsan College of Medicine, Seoul, Korea
    Int J Cardiovasc Imaging 22:671-81. 2006
    ..Modification of gated SPECT measurements by taking account of these factors would lead to reduce systemic errors...
  41. ncbi request reprint Two-year follow-up of the quantitative angiographic and volumetric intravascular ultrasound analysis after nonpolymeric paclitaxel-eluting stent implantation: late "catch-up" phenomenon from ASPECT Study
    Duk Woo Park
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
    J Am Coll Cardiol 48:2432-9. 2006
    ..This study used serial angiographic and intravascular ultrasound (IVUS) analysis to evaluate the long-term efficacy of a nonpolymeric, paclitaxel-eluting stent coating on intimal hyperplasia (IH) 2 years after implantation...
  42. ncbi request reprint Intravenous versus intracoronary myocardial contrast echocardiography for evaluation of no-reflow after primary percutaneous coronary intervention
    Jong Min Song
    Division of Cardiology, Department of Internal Medicine, Asan corrected Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    Echocardiography 22:818-25. 2005
    ....
  43. ncbi request reprint Impact of geographic miss on adjacent coronary artery segments in diffuse in-stent restenosis with beta-radiation therapy: angiographic and intravascular ultrasound analysis
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
    Am Heart J 143:327-33. 2002
    ..The impacts of geographic miss on edge restenosis have not been sufficiently evaluated...
  44. ncbi request reprint Impact of various intravascular ultrasound criteria for stent optimization on the six-month angiographic restenosis
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Cardiac Center, Asan Medical Center, Seoul, Korea
    Catheter Cardiovasc Interv 56:178-83. 2002
    ..In conclusions, using the relative measurement of IVUS criteria, the occurrence of angiographic restenosis might not be predicted. The absolute measurement of IVUS stent area was the predictor of angiographic restenosis...
  45. doi request reprint Impact of heart failure with normal ejection fraction on the occurrence of ischaemic stroke in patients with atrial fibrillation
    Sun Joo Jang
    Division of Cardiology, Department of Internal Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
    Heart 99:17-21. 2013
    ..The purpose of this study is to examine the risk of stroke in patients with heart failure with normal ejection fraction (HFNEF) and atrial fibrillation (AF)...
  46. doi request reprint Impact of the Maze operation on the progression of mild functional tricuspid regurgitation
    Hyung Gon Je
    Department of Cardiovascular Surgery, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
    J Thorac Cardiovasc Surg 136:1187-92. 2008
    ..This study examined the effect of Maze operation and tricuspid valve repair on postoperative functional tricuspid regurgitation progression...
  47. ncbi request reprint Long-term comparison of apical versus asymmetric hypertrophic cardiomyopathy
    Sung Hwan Kim
    Division of Cardiology, Department of Internal Medicine, Seoul St Mary s Hospital, College of Medicine, The Catholic University of Korea
    Int Heart J 54:207-11. 2013
    ..33). The overall survival rate of apical HCM was as high as that of asymmetric HCM, but the cardiac survival rate was significantly lower in patients with asymmetric HCM. Beta-blocker use was associated with better long-term outcomes. ..
  48. ncbi request reprint Diagnosis of viable myocardium using velocity data of Doppler myocardial imaging: comparison with positron emission tomography
    Hyun Suk Yang
    Division of Cardiology, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, South Korea
    J Am Soc Echocardiogr 17:933-40. 2004
    ..Velocity data of DMI at rest provides robust information regarding viability in selected patients, and an advantage of this technique is that no stress testing is needed...
  49. ncbi request reprint Long-term outcomes after mitral ring annuloplasty for degenerative mitral regurgitation: Duran ring versus Carpentier-Edwards ring
    Cheol Hyun Chung
    Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    J Heart Valve Dis 16:536-44; discussion 544-5. 2007
    ..The preferred choice of annuloplasty ring in mitral surgery has not yet been determined. The study aim was to compare the effects of using two ring types, the Duran and the Carpentier-Edwards, for degenerative mitral valve repair...
  50. doi request reprint Impact of early surgery on embolic events in patients with infective endocarditis
    Dae Hee Kim
    Division of Cardiology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
    Circulation 122:S17-22. 2010
    ..Surgical indications to prevent systemic embolism in infective endocarditis (IE) remain controversial. We sought to compare clinical outcomes of early surgery with conventional treatment in IE patients with embolic indications only...
  51. ncbi request reprint Factors associated with in-hospital mortality in patients with acute aortic syndrome involving the ascending aorta
    Jae Kwan Song
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, 388 1 Poongnap dong Songpa ku, Seoul, 138 736, South Korea
    Int J Cardiol 115:14-8. 2007
    ..We sought to assess the real impact of increased recognition of IMH on mortality of AAS involving the ascending aorta...
  52. ncbi request reprint Two-year follow-up intravascular ultrasound analysis after bare metal stent implantation in 120 lesions
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
    Catheter Cardiovasc Interv 65:247-53. 2005
    ..However, IH progression was observed in 24% of in-stent lesions. No significant changes of EEM or lumen area occurred in the reference segments...
  53. ncbi request reprint Assessment of papillary muscle function in patients with inferior wall myocardial infarction using Doppler tissue imaging
    Soo Jin Kang
    Division of Cardiology, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, South Korea
    J Am Soc Echocardiogr 18:815-20. 2005
    ..We sought to assess the relationship between infarct status and systolic contractile function of papillary muscle (PM) for patients with inferior wall myocardial infarction (MI)...
  54. ncbi request reprint Postsystolic thickening detected by Doppler myocardial imaging: a marker of viability or ischemia in patients with myocardial infarction
    Jae Kwan Song
    Division of Cardiology, Asan Medical Center, Seoul, South Korea
    Clin Cardiol 27:29-32. 2004
    ..Postsystolic thickening (PST) of ischemic myocardial segments has been reported to account for the characteristic heterogeneity or regional asynchrony of myocardial wall motion during acute ischemia...
  55. doi request reprint Aortopathy and bicuspid aortic valve: haemodynamic burden is main contributor to aortic dilatation
    Yong Giun Kim
    Cardiac Imaging Center, Asan Heart Institute, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    Heart 98:1822-7. 2012
    ..To evaluate factors associated with aortic enlargement in patients with a bicuspid aortic valve (BAV) and the impact of isolated aortic valve replacement (AVR)...
  56. doi request reprint Effect of preoperative ejection fraction, left ventricular systolic dimension and hemoglobin level on survival after aortic valve surgery in patients with severe chronic aortic regurgitation
    Hyun Woo Park
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    Am J Cardiol 109:1782-6. 2012
    ..In conclusion, preoperative LV end-systolic dimension and hemoglobin level are independent prognostic factors of survival after aortic valve surgery in patients with chronic severe AR and normal LV EFs...
  57. doi request reprint Outcomes of patients with stress-induced cardiomyopathy diagnosed by echocardiography in a tertiary referral hospital
    Pil Hyung Lee
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    J Am Soc Echocardiogr 23:766-71. 2010
    ..Because stress-induced cardiomyopathy (SIC) is increasingly being observed during routine daily practice, we sought to explore the clinical features and factors that determine the outcome of SIC in a tertiary referral hospital...
  58. doi request reprint Outcomes of patients with acute type a aortic intramural hematoma
    Jae Kwan Song
    Asan Medical Center, University of Ulsan College of Medicine, 388 1 Poongnap dong Songpa gu, Seoul, 138 736 South Korea
    Circulation 120:2046-52. 2009
    ..We assessed the outcome of our institutional policy of urgent surgery for unstable patients and initial medical treatment for stable patients with surgery in cases with complications...
  59. doi request reprint Determinants of left ventricular vortex flow parameters assessed by contrast echocardiography in an in vivo animal model
    Dae Hee Kim
    Cardiac Imaging Center, Asan Heart Institute Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    Echocardiography 30:588-98. 2013
    ..The aim of this study was to investigate their determinants and associations with conventional hemodynamic variables...
  60. ncbi request reprint Diabetic retinopathy as a predictor of late clinical events following percutaneous coronary intervention
    Young Hak Kim
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, 388 1 Poongnap dong, Songpa Gu, Seoul, 138 736, Korea
    J Invasive Cardiol 14:599-602. 2002
    ..17). In conclusion, the presence of retinopathy might be a predictor of mortality after PCI in DM patients; however, it might not be related to the development of other major cardiac and cerebrovascular events...
  61. ncbi request reprint Geometric and hemodynamic determinants of functional tricuspid regurgitation: a real-time three-dimensional echocardiography study
    Yong Hyun Park
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, 388 1 Poongnap2 Dong, Songpa Gu, Seoul, South Korea
    Int J Cardiol 124:160-5. 2008
    ..The geometric and hemodynamic determinants of functional tricuspid regurgitation (FTR) have not yet been established. Geometric alterations in the tricuspid valve can be accurately determined using 3-dimensional echocardiography...
  62. ncbi request reprint Long-term predictors of descending aorta aneurysmal change in patients with aortic dissection
    Jong Min Song
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    J Am Coll Cardiol 50:799-804. 2007
    ..We sought to demonstrate the long-term natural course of descending aorta dilation after acute aortic dissection (AD) and identify early predictors for late aneurysmal change...
  63. doi request reprint Association between bicuspid aortic valve phenotype and patterns of valvular dysfunction and bicuspid aortopathy: comprehensive evaluation using MDCT and echocardiography
    Joon Won Kang
    Cardiac Imaging Center, Asan Heart Institute, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
    JACC Cardiovasc Imaging 6:150-61. 2013
    ..We sought to define the clinical importance of an integrated classification of bicuspid aortic valve (BAV) phenotypes and aortopathy using multidetector computed tomography (MDCT)...
  64. doi request reprint Echocardiographic predictors of left ventricular function and clinical outcomes after successful mitral valve repair: conventional two-dimensional versus speckle-tracking parameters
    Jong Min Song
    Division of Cardiology, Department of Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    Ann Thorac Surg 91:1816-23. 2011
    ....
  65. pmc Comparison of clinical and echocardiographic outcomes after valve repair: degenerative versus rheumatic mitral regurgitation
    Jae Kwan Song
    Divisions of Cardiology, Asan Medical Center University of Ulsan, College of Medicine, Seoul, Korea
    J Korean Med Sci 18:344-8. 2003
    ..7) also was independent predictor. Valve repair is highly feasible in selected patients with rheumatic mitral regurgitation, and clinical course is not significantly different from that of patients with degenerative mitral regurgitation...
  66. doi request reprint Discrepancy between mitral valve areas measured by two-dimensional planimetry and three-dimensional transoesophageal echocardiography in patients with mitral stenosis
    Sun Yang Min
    Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, 388 1 Poongnap 2 dong, Songpa Gu, Seoul, Korea
    Heart 99:253-8. 2013
    ....
  67. ncbi request reprint Relationship between multiple plasma biomarkers and vulnerable plaque determined by virtual histology intravascular ultrasound
    Jong Pil Park
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, Korea
    Circ J 74:332-6. 2010
    ..The relationship between plasma biomarkers and vulnerable plaque is not well understood...
  68. pmc In vivo measurement of mitral leaflet surface area and subvalvular geometry in patients with asymmetrical septal hypertrophy: insights into the mechanism of outflow tract obstruction
    Dae Hee Kim
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, 388 1 Poongnap dong Songpa gu, Seoul 138 736, South Korea
    Circulation 122:1298-307. 2010
    ....
  69. ncbi request reprint Plaque ruptures in stable angina pectoris compared with acute coronary syndrome
    Myeong Ki Hong
    Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, 388 1 Poongnap dong, Songpa Gu, Seoul 138 736, Republic of Korea
    Int J Cardiol 114:78-82. 2007
    ..Consequently, studies regarding plaque rupture, which occurred in SAP patients, are rare. Therefore, we evaluated the frequency and axial location of plaque ruptures in SAP patients and compared them with those in ACS patients...
  70. ncbi request reprint Long-term prognosis of isolated significant tricuspid regurgitation
    Jeong Woo Lee
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    Circ J 74:375-80. 2010
    ..The prognostic implications and surgical benefit of isolated significant tricuspid regurgitation (TR) and prognostic factors in patients with TR were investigated...
  71. pmc Transcatheter aortic valve implantation: early experience in Korea
    Won Jang Kim
    Department of Cardiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
    Korean Circ J 42:684-91. 2012
    ..Transcatheter aortic valve implantation (TAVI) was recently introduced in Korea. The present report describes the experience of early TAVI cases...
  72. doi request reprint Cerebral blood flow as a marker for recovery of left ventricular systolic dysfunction in patients with idiopathic dilated cardiomyopathy
    Min Seok Kim
    Asan Medical Center Heart Institute, Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Korea
    J Card Fail 18:549-55. 2012
    ..This study was intended to investigate whether cerebral blood flow (CBF) could predict the recovery of left ventricular (LV) systolic dysfunction in patients with idiopathic dilated cardiomyopathy (DCMP)...
  73. doi request reprint The vena contracta in functional tricuspid regurgitation: a real-time three-dimensional color Doppler echocardiography study
    Jong Min Song
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, 388 1 Poongnap2 Dong, Songpa Gu, Seoul, South Korea
    J Am Soc Echocardiogr 24:663-70. 2011
    ....
  74. doi request reprint Geometric changes after tricuspid annuloplasty and predictors of residual tricuspid regurgitation: a real-time three-dimensional echocardiography study
    Sun Yang Min
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, 388 1 Poongnap2 Dong, Songpa Gu, Seoul 138 736, South Korea
    Eur Heart J 31:2871-80. 2010
    ....
  75. ncbi request reprint Prognostic value of longitudinal strain after primary reperfusion therapy in patients with anterior-wall acute myocardial infarction
    Yong Hyun Park
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    J Am Soc Echocardiogr 21:262-7. 2008
    ..We sought to test whether longitudinal strain (LS) can be a useful predictor of left ventricular (LV) remodeling after reperfusion therapy in acute myocardial infarction...
  76. pmc Prevalence of echocardiographic features suggesting cardiac sarcoidosis in patients with pacemaker or implantable cardiac defibrillator
    Byung Joo Sun
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
    Korean Circ J 41:313-20. 2011
    ..We sought to assess the prevalence of this characteristic echocardiographic finding in patients with pacemaker (PM) or implantable cardiac defibrillator (ICD)...
  77. ncbi request reprint Prognostic implication of ergonovine echocardiography in patients with near normal coronary angiogram or negative stress test for significant fixed stenosis
    Jae Kwan Song
    Division of Cardiology, Asan Medical Center, University of Ulsan, College of Medicine, Poongnap dong, Songpa Ku, Seoul, South Korea
    J Am Soc Echocardiogr 15:1346-52. 2002
    ..The cardiac events after Erg Echo were tabulated and these included cardiac death, myocardial infarction (MI), readmission due to intractable chest pain...
  78. ncbi request reprint Initial echocardiographic characteristics of pericardial effusion determine the pericardial complications
    Sang Hyun Kim
    Division of Cardiology, Asan Medical Center, Seoul, South Korea
    Int J Cardiol 136:151-5. 2009
    ..Clinical implications of the initial echocardiographic characteristics of pericardial effusion (PE) have not been clearly demonstrated. We sought to evaluate the clinical significance of echogenic materials in PE...
  79. doi request reprint Factors determining outcomes of aortic valve surgery in patients with aortic regurgitation due to Behçet's disease: impact of preoperative echocardiographic features
    Jae Kwan Song
    Department of Cardiology, Cardiac Imaging Center Heart Institute, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    J Am Soc Echocardiogr 24:995-1003. 2011
    ..The aim of this study was to test whether initial echocardiographic findings are useful to predict recurrent AR...
  80. ncbi request reprint Effects of statin treatments on coronary plaques assessed by volumetric virtual histology intravascular ultrasound analysis
    Myeong Ki Hong
    Division of Cardiology, Yonsei Cardiovascular Center, Yonsei University College of Medicine, Seoul, Korea
    JACC Cardiovasc Interv 2:679-88. 2009
    ..We evaluated the effects of statin treatments for each component of coronary plaques...
  81. doi request reprint Association between anatomic features of atrial septal abnormalities obtained by omni-plane transesophageal echocardiography and stroke recurrence in cryptogenic stroke patients with patent foramen ovale
    Jong Young Lee
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    Am J Cardiol 106:129-34. 2010
    ..1% vs 71.5 +/- 16.2%, p <0.001). In conclusion, our data suggest that risk stratification might be possible using the findings from TEE. The prophylactic benefit of PFO closure from these findings needs additional investigation...
  82. doi request reprint Three-dimensional remodeling of mitral valve in patients with significant regurgitation secondary to rheumatic versus prolapse etiology
    Jong Min Song
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    Am J Cardiol 111:1631-7. 2013
    ..The knowledge of those quantitative differences could open the way to precise planning of surgery tailored to the underlying pathologic entity...
  83. ncbi request reprint Phenotypic spectrum and clinical characteristics of apical hypertrophic cardiomyopathy: multicenter echo-Doppler study
    Eui Young Choi
    Yonsei University College of Medicine, Seoul, Republic of Korea
    Cardiology 110:53-61. 2008
    ..The aim of this study was to define the phenotypic spectrum of apical hypertrophic cardiomyopathy (ApHCM) and clinical characteristics pertaining to identified subtypes...
  84. ncbi request reprint Left ventricular remodeling and change of systolic function after closure of patent ductus arteriosus in adults: device and surgical closure
    Young Hoon Jeong
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    Am Heart J 154:436-40. 2007
    ..Left ventricular (LV) remodeling and predictors of LV systolic function late after closure of patent ductus arteriosus (PDA) in adults remain to be clearly demonstrated...
  85. doi request reprint Prognostic value of echocardiographic estimation of pulmonary vascular resistance in patients with acute pulmonary thromboembolism
    Sung Hwan Kim
    Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, 86 Asanbyeongwon gil, Songpa Gu, Seoul, South Korea
    J Am Soc Echocardiogr 24:693-8. 2011
    ..Noninvasive calculation of pulmonary vascular resistance (PVR) has been reported to be feasible. We therefore evaluated whether baseline PVR could predict clinical outcomes in patients with acute pulmonary thromboembolism (aPTE)...
  86. ncbi request reprint Clinical significance of echo-free space detected by transesophageal echocardiography in patients with type B aortic intramural hematoma
    Jong Min Song
    Division of Cardiology, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, South Korea
    Am J Cardiol 89:548-51. 2002
    ..EFS by TEE is not rare in patients with type B AIH. It is not a poor prognostic factor and is not associated with the development of AD...
  87. ncbi request reprint Apical rotation assessed by speckle-tracking echocardiography as an index of global left ventricular contractility
    Won Jang Kim
    Cardiology and Laboratory of Animal Research, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    Circ Cardiovasc Imaging 2:123-31. 2009
    ..Left ventricular (LV) apical rotation and twist can be estimated noninvasively by speckle-tracking echocardiography (STE). In this study, we tested whether apical rotation is an accurate index of LV contractility...
  88. pmc Comparison of myocardial contrast echocardiography versus rest sestamibi myocardial perfusion imaging in the early diagnosis of acute coronary syndrome
    Soo Jin Kang
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
    J Cardiovasc Ultrasound 18:45-51. 2010
    ..We sought to directly compare the diagnostic accuracy of MCE with resting MPI in a head-to-head fashion...
  89. pmc A case of carbon monoxide poisoning with thrombus in right atrium
    Hyoin Choi
    Cardiac Imaging Center, Asan Heart Institute, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
    J Cardiovasc Ultrasound 20:205-8. 2012
    ..Although less frequently, an association between thromboembolic events and carbon monoxide poisoning has been shown in the literatures. In this case, we report a case of atrial thrombus associated with carbon monoxide poisoning...
  90. doi request reprint Right-left propensity and lesion patterns between cardiogenic and aortogenic cerebral embolisms
    Hye Jin Kim
    Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 138 736, South Korea
    Stroke 42:2323-5. 2011
    ..Based on thrombus location and nature and anatomic features of aorta and cerebral arteries, we hypothesized that cardiogenic embolisms (CE) and aortogenic embolisms (AE) might have different right-left propensity and lesion patterns...
  91. pmc A Case of Loeffler's Endocarditis Associated with Churg-Strauss Syndrome
    Jeong Sook Seo
    Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
    J Cardiovasc Ultrasound 18:21-4. 2010
    ..The echocardiogram showed that biventricular failure with large thrombus in left ventricle. His symptoms and typical echocardiographic findings markedly improved within 2 months after treatment for Churg-Strauss syndrome...
  92. ncbi request reprint C-reactive protein promotes monocyte chemoattractant protein-1--mediated chemotaxis through upregulating CC chemokine receptor 2 expression in human monocytes
    Ki Hoon Han
    Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    Circulation 109:2566-71. 2004
    ..In addition, recent data suggest that CRP may directly promote atherogenesis. In this study, we investigated whether CRP can directly activate human circulating monocytes...
  93. pmc Prognostic value of initial echocardiographic features in patients with tuberculous pericarditis
    Hyung Oh Choi
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
    Korean Circ J 40:377-86. 2010
    ..Tuberculous (TB) pericarditis is a major cause of constrictive pericarditis requiring pericardiectomy. We sought to determine initial prognostic factors in patients with TB pericarditis...
  94. pmc Right ventricular remodeling determines tricuspid valve geometry and the severity of functional tricuspid regurgitation: a real-time 3-dimensional echocardiography study
    Jong Min Song
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
    Korean Circ J 40:448-53. 2010
    ..Right ventricle (RV) remodeling can determine tricuspid valve (TV) geometry and the severity of functional tricuspid regurgitation (TR)...
  95. ncbi request reprint Left atrial volume measured by real-time 3-dimensional echocardiography predicts clinical outcomes in patients with severe left ventricular dysfunction and in sinus rhythm
    Il Woo Suh
    Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
    J Am Soc Echocardiogr 21:439-45. 2008
    ..The clinical value of real-time 3-dimensional echocardiography assessments of left atrial volume in patients with left ventricular dysfunction has not been determined...
  96. doi request reprint Current status and characteristics of hypertension treatment by primary physicians in Korea: data from Korean epidemiology study on hypertension (KEY study)
    Kwang Il Kim
    Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
    Am J Hypertens 21:884-9. 2008
    ..This study was designed to investigate the characteristics, control rate, and factors affecting BP control in hypertensive patients treated by primary physicians in Korea...
  97. pmc Prevalence, predictive factor, and clinical significance of white-coat hypertension and masked hypertension in Korean hypertensive patients
    Eui Seock Hwang
    Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
    Korean J Intern Med 22:256-62. 2007
    ..Here we measure the frequency of WCHT and MHT in hypertensive subjects and identify the epidemiologic and/or clinical factors that predict it in Korean subjects...
  98. pmc Recurrent postoperative effusive-constrictive pericarditis associated with steroid discontinuation
    Gyung Min Park
    Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
    J Cardiovasc Ultrasound 17:102-5. 2009
    ..However, she suffered from a relapse of pericaridis after rapid steroid discontinuation and was stabilized by re-treatment with steroid...