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Recurrent Syncope Triggered by Temporal Lobe Epilepsy: Ictal Bradycardia Syndrome
강도윤,Il-Young Oh,So-Ryoung Lee,Won-Seok Choe,Jung-Han Yoon,Sang-Kun Lee,최의근,오세일 대한심장학회 2012 Korean Circulation Journal Vol.42 No.5
Ictal asystole is potentially lethal, and known to originate from the involvement of limbic autonomic regions. Appropriate treatment must include an antiepileptic drug and the implantation of a pacemaker. We report the case of a 54-year-old male with recurrent syncope sec-ondary to ictal asystole triggered by temporal lobe epilepsy. This was confirmed by combined Holter and video-electroencephalogram monitoring.
강도윤,양한모,박경우,이소령,이민호,이동원,이해영,강현재,구본권,채인호,최동주,김효수,김철호 대한심장학회 2012 Korean Circulation Journal Vol.42 No.8
Background and Objectives: Small dense low density lipoproteins (sd-LDL) are a risk factor for coronary artery disease and are known to stimulate platelet function in vitro. This study aimed to evaluate whether high proportion of sd-LDL is associated with high on-treat-ment platelet reactivity (HOPR). Subjects and Methods: From January 2009 to March 2010, 439 subjects (mean age: 64.3±9.7, Male : Female=306 : 133) were enrolled from the low density LIPOProtein-cholesterol Size measurement Registry with coronary artery disease, who had undergone elective per-cutaneous coronary intervention and measured both LDL particle size and on-treatment platelet reactivity (OPR). Mean LDL particle size was measured by gradient gel electrophoresis (Quantimetrix, Lipoprint TM ) and OPR by the VerifyNow TM system (aspirin and P2Y12). Results: Between pattern A (large, buoyant LDL dominant) and B (sd-LDL dominant) population, there were no significant difference in OPR to aspirin (441.3±71.9 vs. 434.07±63.45 aspirin reaction units, p=0.351) or clopidogrel (237.9±87.3 vs. 244.9±80.7 P2Y12 reaction units, p=0.465). There was no difference in LDL particle size between patients with HOPR compared with non-HOPR patients (aspirin:26.8±0.5 vs. 26.7±0.6 nm, p=0.078, clopidogrel: 26.7±0.6 vs. 26.8±0.5 nm, p=0.857). Pearson’s correlation coefficients between LDL par-ticle size and platelet reactivity were not statistically significant (aspirin assay: r=0.080, p=0.098, P2Y12 assay: r=-0.027, p=0.568). Conclusion: There was no significant association between LDL particle size and OPR in patients with coronary artery disease.
Importance of Clinical and Echocardiographic Hemodynamic Assessment in Chronic Pulmonary Embolism
최원석,강도윤,윤정한,이민호,차명진,김형관,김용진,조구영,손대원 한국심초음파학회 2011 Journal of Cardiovascular Imaging (J Cardiovasc Im Vol.19 No.4
We describe a 42-year-old man presenting to the emergency department with cardiogenic shock. He had a prior history of acute pulmonary embolism (PE), and had been on anticoagulation for 2 years. Although computed tomographic pulmonary angiography performed at the emergency department showed no change in the extent of PE and did not support a role of surgical treatment,pulmonary embolectomy was recommended by attending physician based on clinical and echocardiographic hemodynamic findings like unstable vital sign and markedly enlarged right ventricle with severely depressed systolic function. Surgery confirmed the presence of fresh thrombi. After surgery, hemodynamic status was progressively improved, but the patient died due to pneumonia and pulmonary hemorrhage.
강시혁,오세일,강도윤,차명진,조영진,최의근,한서경,오일영 대한의학회 2015 Journal of Korean medical science Vol.30 No.1
Cardiac resynchronization therapy (CRT) has been shown to reduce the risk of death andhospitalization in patients with advanced heart failure with left ventricular dysfunction. However, controversy remains regarding who would most benefit from CRT. We performeda meta-analysis, and meta-regression in an attempt to identify factors that determine theoutcome after CRT. A total of 23 trials comprising 10,103 patients were selected for thismeta-analysis. Our analysis revealed that CRT significantly reduced the risk of all-causemortality and hospitalization for heart failure compared to control treatment. The oddsratio (OR) of all-cause death had a linear relationship with mean QRS duration (P = 0.009). The benefit in survival was confined to patients with a QRS duration ≥ 145 ms (OR, 0.86;95% CI, 0.74-0.99), while no benefit was shown among patients with a QRS duration of130 ms (OR, 1.00; 95% CI, 0.80-1.25) or less. Hospitalization for heart failure was shownto be significantly reduced in patients with a QRS duration ≥ 127 ms (OR, 0.77; 95% CI,0.60-0.98). This meta-regression analysis implies that patients with a QRS duration ≥ 150ms would most benefit from CRT, and in those with a QRS duration < 130 ms CRTimplantation may be potentially harmful.
이소령,최의근,강도윤,차명진,조영진,오일영,오세일 대한심장학회 2014 Korean Circulation Journal Vol.44 No.1
Background and Objectives: Heart failure (HF) patients display more varied QRS duration. We investigated whether QRS variability during hospitalization for acute decompensated HF is associated with poor clinical outcomes after discharge. Subjects and Methods: One hundred seventy three patients (64% males; age 60±13 years) admitted for acute decompensated HF with severe left ventricular (LV) dysfunction (LV ejection fraction ≤35%) were consecutively enrolled. QRS variability was calculated by the difference between maximum and minimum QRS duration acquired during hospitalization. The prognostic implications on composite endpoints of death or urgent heart transplantation were analyzed. Results: Forty-two patients (24.3%) died and three patients (1.7%) underwent urgent heart transplantation during the follow-up of 51±18 months. Patients who reached composite endpoints (n=45) showed greater QRS variability than those who did not (n=128) (20±23 ms vs. 14± 14 ms, p=0.046). Patients who had high QRS variability (more than 22 ms; n=36) tended to have a higher event rate than those with QRS variability <22 ms {39% vs. 23%, hazard ratio (HR), 1.88; 95% confidence interval (CI) 1.001-3.539, p=0.05}. Adjusting with other variables, high QRS variability was an independent predictor for composite outcome (HR 1.94; 95% CI 1.023-3.683, p=0.042). Conclusion: QRS variability measured during hospitalization for acute decompensated HF has a prognostic impact in HF patients with severe LV dysfunction.