Jung Han Yoon

Wonju Severance Christian Hospital, Genshū, Gangwon-do, South Korea

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Publications (72)178.8 Total impact

  • Min Kim · Sun Min Lee · Jung Han Yoon

    No preview · Article · Dec 2015 · Neurological Sciences
  • Hanul Park · Dong Kyu Park · Min Seung Kim · Jung Han Yoon

    No preview · Article · Oct 2015 · Neurological Sciences
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    ABSTRACT: Background: Restless legs syndrome (RLS) is a common sleep disorder in which patients feel unpleasant leg sensations and the urge to move their legs during rest, particularly at night. Leg movement improves these symptoms. Although several studies have demonstrated an association between cardiovascular disease and RLS, the mechanisms underlying this relationship remain unclear. Recent studies have shown changes in the peripheral microvasculature, including altered blood flow and capillary tortuosity, and peripheral hypoxia. Vascular endothelial dysfunction can be assessed noninvasively with ultrasound measurements of brachial artery flow-mediated dilatation (FMD). Therefore, this study investigated FMD in RLS patients to determine the involvement of microvascular alterations in this disorder. Methods: The study enrolled 25 drug-naïve RLS patients and 25 sex- and age-matched controls and compared the FMD values of the two groups. RLS was diagnosed according to the criteria of the International Restless Legs Syndrome Study Group. Results: FMD was significantly lower in the RLS patients (6.6±1.2%) compared to the controls (8.4±1.8%; p<0.05) and the RLS patients showed a weak, negative correlation between RLS severity and FMD (r=-0.419, p=0.04). Multivariate linear regression analysis revealed that RLS (B=-1.87, 95% confidence interval [CI] -2.72 to -1.02; p<0.001) and age (B=-0.06; 95% CI -0.12 to -0.02; p<0.001) were significantly and inversely correlated with FMD. Conclusions: This study demonstrated that RLS patients have poorer vascular endothelial function than normal healthy subjects and provides further evidence supporting the involvement of peripheral systems in the generation of RLS.
    No preview · Article · Oct 2015 · Journal of the neurological sciences
  • Jung Han Yoon · Dong Kyu Park · Seok Woo Yong · Ji Man Hong
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    ABSTRACT: Increasing evidence has shown that individuals with Parkinson’s disease (PD) have lower levels of 25-hydroxyvitamin D (25[OH]D) than healthy controls. Low vitamin D has been associated with endothelial dysfunction which may play a role in the pathogenesis and progression of PD. Flow-mediated dilation (FMD) is widely used as a clinical marker of overall endothelial function. We evaluated the relationship between serum 25(OH)D levels and FMD in PD. We enrolled 81 patients with early PD and 52 healthy controls, and we evaluate endothelial function based on vitamin D status and identify the association between FMD and vitamin D status in patients with early PD. The mean serum 25(OH)D levels were significantly lower in the PD patients than in the controls (21.8 ± 9.5 vs. 25.2 ± 9.3 ng/mL, p < 0.05). FMD was significantly lower in the PD patients (7.1 ± 1.8 %) than in the controls (8.1 ± 2.1 %, p < 0.05). The serum 25(OH)D was significantly associated with FMD independently of age, cardiovascular disease risk factors, body mass index, motor Unified PD Rating Scale status and homocysteine levels (adjusted R 2 = 0.331, β = 0.494, p < 0.001). These findings provide evidence of a possible association between endothelial dysfunction as assessed by FMD and low vitamin D status in patients with early PD.
    No preview · Article · Sep 2015 · Journal of Neural Transmission
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    ABSTRACT: Background: Little is known about the clinical outcomes of patients with different types of coronary bifurcation lesions. We sought to compare long-term clinical outcomes of patients with true or non-true bifurcation lesions who underwent percutaneous coronary intervention. Methods and Results: We compared major adverse cardiac events (MACE: cardiac death, myocardial infarction [MI], or target lesion revascularization) between 1,502 patients with true bifurcation lesions (51.8%) and 1,395 with non-true bifurcation lesions (48.2%). True bifurcation lesions were defined as Medina classification (1.1.1), (1.0.1), or (0.1.1) lesions. During a median follow-up of 36 months, MACE occurred in 296 (10.2%) patients. Patients with true bifurcation lesions had a significantly higher risk of MACE than those with non-true bifurcation lesions (HR 1.39; 95% CI 1.08-1.80; P=0.01). Among true bifurcation lesions, Medina (1.1.1) and (0.1.1) were associated with a higher risk of cardiac death or MI than Medina (1.0.1) (HR 4.15; 95% CI 1.01-17.1; P=0.05). During the procedure, side branch occlusion occurred more frequently in Medina (1.1.1) and (1.0.1) than Medina (0.1.1) lesions (11.5% vs. 7.4%, P=0.03). Conclusions: Patients with true bifurcation lesions had worse clinical outcomes than those with non-true bifurcation lesions. Procedural and long-term clinical outcomes differed according to the type of bifurcation lesion. These findings should be considered in future bifurcation studies.
    No preview · Article · Aug 2015 · Circulation Journal
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    ABSTRACT: OBJECTIVES This study investigated the impact of final kissing ballooning (FKB) after main vessel (MV) stenting on outcomes in patients with coronary bifurcation lesions after application of the 1-stent technique. BACKGROUND Although FKB has been established as the standard method for bifurcation lesions treated with a 2-stent strategy, its efficacy in a 1-stent approach is highly controversial. METHODS This study enrolled 1,901 patients with a bifurcation lesion with a side branch diameter >= 2.3 mm, treated solely with the 1-stent technique using a drug-eluting stent from 18 centers in Korea between January 1, 2003 and December 31, 2009. The primary outcome was major adverse cardiac events (MACE)-cardiac death, myocardial infarction, or target lesion revascularization. Propensity score-matching analysis was also performed. RESULTS FKB was performed in 620 patients and the post minimal lumen diameter of the MV and side branch was larger in the FKB group than in the non-FKB group. During follow-up (median 36 months), the incidence of MACE (adjusted hazard ratio [HR]: 0.68, 95% confidence interval [CI]: 0.46 to 0.99; p = 0.048) was lower in the FKB group than the non-FKB group. After propensity score matching (545 pairs), the FKB group had a lower incidence of MACE (adjusted HR: 0.50, 95% CI: 0.30 to 0.85; p = 0.01), and target lesion revascularization in the MV (adjusted HR: 0.51, 95% CI: 0.28 to 0.93; p = 0.03) and both vessels (adjusted HR: 0.47, 95% CI: 0.25 to 0.90; p = 0.02) than in the non-FKB group. CONCLUSIONS In coronary bifurcation lesions, we demonstrated that the 1-stent technique with FKB was associated with a favorable long-term clinical outcome, mainly driven by the reduction of target lesion revascularization in the MV or both vessels as a result of an increase in minimal lumen diameter. (C) 2015 by the American College of Cardiology Foundation.
    No preview · Article · Aug 2015 · JACC Cardiovascular Interventions
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    ABSTRACT: Purpose: Cardiac images using I-123 metaiodobenzylguanidine (MIBG) are widely used to evaluate cardiac sympathetic denervation in Parkinson's disease (PD). The aim of this study was to evaluate the utility of segmental analysis on cardiac MIBG SPECT in PD patients. Materials and methods: In total, 36 patients with PD (n = 26) or essential tremor (ET, n = 10) who underwent MIBG cardiac SPECT were enrolled. The heart-to-mediastinum (H/M) ratios of MIBG uptake were acquired on planar images. For the segmental analysis of SPECT images, we evaluated the summed defect score (SDS) using a 17-segment model. The diagnostic abilities of H/M ratios and segmental parameters on MIBG SPECT were assessed by ROC curve analysis. Results: The H/M ratios were significantly lower in PD than in ET patients (p < 0.05). On segmental analysis, SDS was significantly higher in PD patients than in the ET group (7.04 ± 4.09 vs. 2.90 ± 2.80; p = 0.006). The defect score of the anteroseptal region showed a significant difference between the groups (p = 0.002). The ROC analysis suggested only SDS (AUC = 0.785, p = 0.0003) and defect scores in the anteroseptal (AUC = 0.800, p < 0.0001) and inferior (AUC = 0.667, p = 0.013) regions showed significant diagnostic ability to differentiate PD from ET. Conclusions: Segmental parameters from cardiac MIBG SPECT images can provide additional information to differentiate PD from ET patients. Beyond H/M ratios from planar images, we recommend an MIBG SPECT study to evaluate sympathetic denervation in PD.
    Full-text · Article · Jul 2015
  • Jung Han Yoon · Seok Woo Yong · Jin Soo Lee

    No preview · Article · Jun 2015 · Neurological Sciences
  • Jung Han Yoon · Min Kim · So Young Moon · Seok Woo Yong · Ji Man Hong
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    ABSTRACT: Mild cognitive impairment (MCI) is a well-known precursor of Alzheimer's disease (AD) but often also precedes dementia with Lewy bodies (DLB). The early differentiation of DLB from AD is important to delay disease progression. Olfactory dysfunction is a well-known early sign of both AD and Lewy body disorders, including Parkinson's disease (PD) and DLB. Thus, the aim of the present study was to determine whether olfactory and neuropsychological tests can aid in the differentiation of DLB from AD at the MCI stage. The present study included 122 MCI patients who were monitored until they developed dementia or until their condition stabilized; the follow-up period averaged 4.9years (range: 3.9-6.2years). Baseline olfactory function as measured with the Cross-Cultural Smell Identification (CCSI) test and neuropsychological data were compared. During the follow-up period, 32 subjects developed probable AD (MCI-AD), 18 had probable DLB (MCI-DLB), 45 did not convert to dementia (MCI-stable), and eight developed a non-AD/DLB dementia. The mean CCSI score (95% confidence interval [CI]) in patients with MCI-DLB (4.6; 95% CI: 4.0-5.3) was significantly lower than that of MCI-AD patients (6.4; 95% CI: 6.0-6.7, p<0.001) and MCI-stable patients (7.3; 95% CI: 6.9-7.8, p<0.001). The area under the curve of the receiver operating characteristic to discriminate MCI-DLB from MCI-AD using CCSI scores was (0.84; 95% CI: 0.72-0.97). Frontal-executive function and visuospatial ability was worse in patients with MCI-DLB, while verbal recognition memory impairment was greater in those with MCI-AD. Olfactory and neuropsychological tests can help predict conversion to DLB or AD in patients with MCI. Copyright © 2015 Elsevier B.V. All rights reserved.
    No preview · Article · Jun 2015 · Journal of the neurological sciences
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    ABSTRACT: Background Levodopa (l-dopa) therapy in Parkinson's disease (PD) increases serum homocysteine levels because of its metabolism via catechol O-methyltransferase, which may lead to endothelial dysfunction.Method We enrolled 40 PD patients treated with l-dopa, 33 PD patients treated with l-dopa/entacapone, 22 untreated PD and 30 controls, and compared the flow-mediated dilation in these subjects.ResultsThe flow-mediated dilation was significantly lower in PD patients with l-dopa (6.0 ± 1.8%) than in those with l-dopa/entacapone (7.2 ± 1.1%, P = 0.03), untreated PD patients (7.8 ± 1.2%, P < 0.05), and controls (8.5 ± 2.9%, P < 0.05). The homocysteine level was significantly higher in PD patients with l-dopa than in other groups. In a multivariate logistic regression model, the uppermost homocysteine quartile was an independent predictor of the lowest tertile of flow-mediated dilation (odds ratio, 6.33; 95% confidence interval, 1.61-26.65; P = 0.012).Conclusions Our findings indicate that endothelial dysfunction may be associated with chronic l-dopa treatment in patients with PD. © 2014 International Parkinson and Movement Disorder Society
    Full-text · Article · Oct 2014 · Movement Disorders
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    ABSTRACT: Purpose The Gail model is one of the most widely used tools to assess the risk of breast cancer. However, it is known to overestimate breast cancer risk for Asian women. Here, we validate the Gail model and the Korean model using Korean data, and subsequently update and revalidate the Korean model using recent data. Methods We validated the modified Gail model (model 2), Asian American Gail model, and a previous Korean model using screening patient data collected between January 1999 and July 2004. The occurrence of breast cancer was confirmed by matching the resident registration number with data from the Korean Breast Cancer Registration Program. The expected-to-observed (E/O) ratio was used to validate the reliability of the program, and receiver operating characteristics curve analysis was used to evaluate the program's discriminatory power. There has been a rapid increase in the incidence of breast cancer in Korea, and we updated and revalidated the Korean model using incidence and mortality rate data from recent years. Results Among 40,229 patients who were included in the validation, 161 patients were confirmed to have developed breast cancer within 5 years of screening. The E/O ratios and 95% confidence intervals (CI) were 2.46 (2.10-2.87) for the modified Gail model and 1.29 (1.11-1.51) for the Asian American Gail model. The E/O ratio and 95% CI for the Korean model was 0.50 (0.43-0.59). For the updated Korean model, the E/O ratio and 95% CI were 0.85 (0.73-1.00). In the discriminatory power, the area under curve and 95% CI of the modified Gail model, Asian American Gail model, Korean model and updated Korean model were 0.547 (0.500-0.594), 0.543 (0.495-0.590), 0.509 (0.463-0.556), and 0.558 (0.511-0.605), respectively. Conclusion The updated Korean model shows a better performance than the other three models. It is hoped that this study can provide the basis for a clinical risk assessment program and a future prospective study of breast cancer prevention.
    Preview · Article · Sep 2014 · Journal of Breast Cancer
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    ABSTRACT: Elevation of blood pressure (BP) and the increasing incidence of hypertension have been known to be associated with time course, especially age. But there is still lack of evidence of BP change and the association with biochemical markers or markers for subclinical organ damage in Korean general population. Thus, the purpose of this study is to investigate BP change and the related factors in established Korean mid-aged rural cohort.
    Preview · Article · Jan 2014
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    ABSTRACT: Recent studies have demonstrated that structural and pathologic changes are more severe in patients with dementia with Lewy bodies (DLB) than in those with Parkinson disease with dementia (PDD). We investigated neuropsychological characteristics of patients with mild cognitive impairment (MCI) stage of DLB (DLB-MCI) and PD (PD-MCI) based on the hypothesis that the pathologic differences between DLB and PDD can influence cognitive profiles in the MCI stage of these diseases. Baseline demographic characteristics and neuropsychological data obtained from patients with DLB-MCI (n=20) and PD-MCI (n=46) were compared. The patients with DLB-MCI showed poorer cognitive performance in the Stroop, Go-No-Go, and semantic fluency tests compared with those with PD-MCI. In addition, patients with DLB-MCI had lower scores on visual and verbal memory performance and in the visuospatial domain compared with PD-MCI patients. Our results demonstrate that patients with DLB-MCI have more severe cognitive impairment in frontal executive, memory, and visuospatial functions than those with PD-MCI. These data suggest that differences in pathologic substrates between PDD and DLB may begin in the MCI stage of the 2 diseases and may lead to differences in cognitive profiles.
    No preview · Article · Oct 2013 · Alzheimer disease and associated disorders
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    ABSTRACT: Aim: We assessed the relationship between the level of high-sensitivity C-reactive protein (hsCRP) and cardiovascular risk factors in Korean adults. Methods: We reviewed 1,561 patients with cardiovascular disease or diabetes mellitus with hsCRP levels measured within the past year. Four cardiovascular risk groups were determined: low (<10%, 0-1 risk), moderate (<10%, >2 risk), high (10-20%) and very high (>20%) risk, according to the number of risk factors and the Framingham/NCEP ATP III risk score. The correlations between the hsCRP level and cardiovascular risk factors (age, smoking, hypertension, lipid profiles and familial history of premature coronary heart disease) were investigated. Results: The mean and median hsCRP (mg/L) levels were 1.32 ± 9.69 and 0.29 (range: 0.01-7.48), respectively. Men had a higher median level of hsCRP than women (p<0.001). The levels of hs CRP significantly increased from the low to the very high risk group (0.15, 0.23, 0.27 and 0.47, respectively) and were significantly correlated with age, the level of glycosylated hemoglobin, body mass index (BMI), the level of high-density lipoprotein cholesterol (HDL-C), the low-density lipoprotein cholesterol (LDL-C)/HDL-C ratio, the LDL-C/total cholesterol (TC) ratio, the HDL-C/TC ratio, the HDL-C/triglyceride (TG) ratio and the TC/TG ratio. Neither smoking, the LDL-C level nor the TG level affected the hsCRP level. In a multivariate regression analysis, age, the HDL-C level, the LDL-C/TC ratio and BMI were found to be independently correlated with the hsCRP level. Conclusions: There is a significant relationship between the degree of cardiovascular risk and the hsCRP level in Korean adults with cardiovascular disease or diabetes mellitus. Assessing the hsCRP levels may thus provide additive value in predicting cardiovascular risks.
    No preview · Article · May 2013 · Journal of atherosclerosis and thrombosis
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    ABSTRACT: Trans-radial (TR) approach is increasingly recognized as an alternative to the routine use of trans-femoral (TF) approach. However, there are limited data comparing the outcomes of these two approaches for the treatment of coronary bifurcation lesions. We evaluated outcomes of TR and TF percutaneous coronary interventions (PCI) in this complex lesion. Procedural outcomes and clinical events were compared in 1,668 patients who underwent PCI for non-left main bifurcation lesions, according to the vascular approach, either TR (n = 503) or TF (n = 1,165). The primary outcome was major adverse cardiac events (MACE), including cardiac death, myocardial infarction (MI), and target lesion revascularization (TLR) in all patients and in 424 propensity-score matched pairs of patients. There were no significant differences between TR and TF approaches for procedural success in the main vessel (99.6% vs 98.6%, P = 0.08) and side branches (62.6% vs 66.7%, P = 0.11). Over a mean follow-up of 22 months, cardiac death or MI (1.8% vs 2.2%, P = 0.45), TLR (4.0% vs 5.2%, P = 0.22), and MACE (5.2% vs 7.0%, P = 0.11) did not significantly differ between TR and TF groups, respectively. These results were consistent after propensity score-matched analysis. In conclusion, TR PCI is a feasible alternative approach to conventional TF approaches for bifurcation PCI (clinicaltrials.gov number: NCT00851526).
    Full-text · Article · Mar 2013 · Journal of Korean medical science
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    ABSTRACT: Left ventricular hypertrophy (LVH) offers prognostic information beyond that provided by the evaluation of traditional cardiovascular risk factors. However, the validation of electrocardiogram (ECG) criteria for the diagnosis of LVH is limited in Korea general population. The purpose of this study is to investigate the diagnostic accuracy of ECG criteria for the detection of LVH in general population.
    Full-text · Article · Jan 2013
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    ABSTRACT: This study sought to compare everolimus-eluting stents (EES) with zotarolimus-eluting stents (ZES) in patients with acute myocardial infarction (AMI). There is a paucity of data to exclusively evaluate the safety and efficacy of second-generation drug-eluting stents (DES) in the setting of AMI. The present study enrolled 3,309 AMI patients treated with ZES (n = 1,608) or EES (n = 1,701) in a large-scale, prospective, multicenter registry-KAMIR (Korea Acute Myocardial Infarction Registry). Propensity score matching was applied to adjust for differences in baseline clinical and angiographic characteristics, producing a total of 2,646 patients (1,343 receiving ZES, and 1,343 receiving EES). Target lesion failure (TLF) was defined as the composite of cardiac death, recurrent nonfatal myocardial infarction, or target lesion revascularization. Major clinical outcomes at 1 year were compared between the 2 propensity score-matched groups. After propensity score matching, baseline clinical and angiographic characteristics were similar between the 2 groups. Clinical outcomes of the propensity score-matched patients showed that, despite similar incidences of recurrent nonfatal myocardial infarction and in-hospital and 1-year mortality, patients in the EES group had significantly lower rates of TLF (6.5% vs. 8.7%, p = 0.029) and probable or definite stent thrombosis (0.3% vs. 1.6%, p < 0.001), compared with those in the ZES group. Furthermore, there was a numerically lower rate of target lesion revascularization (1.2% vs. 2.2%, p = 0.051) in the EES group than in the ZES group. In this propensity-matched comparison, EES seems to be superior to ZES in reducing TLF and stent thrombosis in patients with AMI.
    No preview · Article · Sep 2012 · JACC. Cardiovascular Interventions
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    ABSTRACT: The optimal loading dose of clopidogrel in patients with chronic kidney disease who undergo primary percutaneous coronary intervention for ST-segment elevation myocardial infarction has not been investigated. The aim of this study was to assess the impact of clopidogrel loading dose on clinical outcomes in this setting. A total of 1,457 patients with CKD (estimated glomerular filtration rate <60 ml/min/1.73 m(2)) were evaluated according to clopidogrel loading dose: 600 mg (n = 861) versus 300 mg (n = 596). In-hospital complications, including major bleeding and clinical outcomes at 1 and 12 months, were compared between the 2 groups. The in-hospital major bleeding rate was similar (0.8% vs 0.2%, p = 0.09). Also, there were no differences in major adverse cardiac event rates, including death, recurrent myocardial infarction, target lesion revascularization, and stent thrombosis, at 1 month (15.6% vs 16.4%, p = 0.70) and 12 months (19.0% vs 21.3%, p = 0.32). On multivariate analysis, a 600-mg loading dose of clopidogrel was not an independent predictor of 1-month (odds ratio 1.13, 95% confidence interval 0.49 to 2.57, p = 0.78) and 12-month (odds ratio 0.89, 95% confidence interval 0.52 to 1.51, p = 0.66) major adverse cardiac events. After propensity score-matched analysis, these results were unchanged. In conclusion, a 600-mg loading dose of clopidogrel was not effective in reducing 1- and 12-month major adverse cardiac events in patients with chronic kidney disease who underwent primary percutaneous coronary intervention for ST-segment elevation myocardial infarction, but this dose did not increase the in-hospital major bleeding rate.
    No preview · Article · Aug 2012 · The American journal of cardiology
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    ABSTRACT: BACKGROUND: Debate continues over the importance of periprocedural myocardial infarction (PMI) after percutaneous coronary intervention (PCI). We evaluated the prognostic significance of PMI in patients undergoing PCI for bifurcation lesions. METHODS: Between January 2004 and June 2006, patients from 16 centers who received non-left main bifurcation lesion PCIs were enrolled. PMI was defined as a peak creatine kinase-myocardial band (CK-MB) ≥3 times the upper limit of normal after PCI. We compared long-term cardiac mortality between patients with and without PMI. RESULTS: Among the 1188 patients, PMI occurred in 119 (10.0%). Left ventricular ejection fraction<50% (adjusted hazard ratio [HR]: 2.08, 95% confidence interval [CI]: 1.13-3.82, p=0.018), multi-vessel coronary artery disease (adjusted HR: 2.28, 95% CI: 1.36-3.81, p=0.002), and PCI-related acute closure in a side branch (adjusted HR: 3.34, 95% CI: 1.23-9.02, p=0.018) were the significant risk factors for PMI. During the median follow-up of 22.7months, the unadjusted rate of long-term cardiac mortality was significantly higher in patients with PMI than in those without PMI (2.5% vs. 0.7%, p=0.026). After multivariable adjustment, the relationship between PMI and short-term (≤30day) cardiac mortality was significant (adjusted HR: 12.32, 95% CI: 1.07-141.37, p=0.044). However, PMI was not an independent prognostic factor of long-term cardiac mortality (adjusted HR: 2.59, 95% CI: 0.62-10.85, p=0.20). CONCLUSIONS: PMI occurs in patients with a higher prevalence of adverse cardiac risks and predicts short-term but not long-term cardiac mortality in patients undergoing bifurcation lesion PCI.
    No preview · Article · Apr 2012 · International journal of cardiology
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    ABSTRACT: There has been controversy over the disparity between men and women with regard to the management and prognosis of acute myocardial infarction. Analyzing nationwide multicenter prospective registries in Korea, the aim of this study was to determine whether female gender independently imposes a risk for mortality. Data from 14,253 patients who were hospitalized for ST-segment elevation myocardial infarction from November 2005 to September 2010 were extracted from registries. Compared to men, women were older (mean age 56 ± 12 vs 67 ± 10 years, p < 0.001), and female gender was associated with a higher frequency of co-morbidities, including hypertension, diabetes, and dyslipidemia. Women had longer pain-to-door time and more severe hemodynamic status than men. All-cause mortality rates were 13.6% in women and 7.0% in men at 1 year after the index admission (hazard ratio for women 2.01, 95% confidence interval 1.80 to 2.25, p < 0.001). The risk for death after ST-segment elevation myocardial infarction corresponded highly with age. Although the risk remained high after adjusting for age, further analyses adjusting for medical history, clinical performance, and hemodynamic status diminished the gender effect (hazard ratio 1.00, 95% confidence interval 0.86 to 1.17, p = 0.821). Propensity score matching, as a sensitivity analysis, corroborated the results. In conclusion, this study shows that women have a comparable risk for death after ST-segment elevation myocardial infarction as men. The gender effect was accounted for mostly by the women's older age, complex co-morbidities, and severe hemodynamic conditions at presentation.
    No preview · Article · Dec 2011 · The American journal of cardiology

Publication Stats

589 Citations
178.80 Total Impact Points

Institutions

  • 2010-2015
    • Wonju Severance Christian Hospital
      Genshū, Gangwon-do, South Korea
  • 2009-2015
    • Yonsei University
      • Department of Emergency Medicine
      Sŏul, Seoul, South Korea
  • 2008-2015
    • Ajou University Medical Center
      수원시, Gyeonggi-do, South Korea
  • 2005-2015
    • Ajou University
      • Department of Neurology
      Sŏul, Seoul, South Korea
  • 2008-2014
    • Chonnam National University
      • • Department of Surgery
      • • Department of Internal Medicine
      Gwangju, Gwangju, South Korea
  • 2006
    • Hanyang University
      • Division of Mechanical Engineering
      Sŏul, Seoul, South Korea
  • 1992
    • Yonsei University Hospital
      • Department of Internal Medicine
      Sŏul, Seoul, South Korea