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    [The thermodilution method for the understanding of heart function].
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    Purpose: We aimed to investigate if baseline NTproBNP and clinical variables, predict incident atrial fibrillation (AF) in ST-elevation myocardial infarction (STEMI) patients undergoing primary percutaneous coronary intervention (PPCI). Methods: From a prospective registry, we assessed 984 PPCI patients. In univariate and multivariate regression analysis, we investigated the association of NTproBNP level determined just prior to PPCI, peri-procedural systolic and diastolic blood pressure, infarct size (maximum CK), gender and age, with the incidence of AF. A Kaplan-Meier curve with quartiles of NTproBNP was computed with a log-rank test to assess for significance of differences. Results: NTproBNP was higher (1297 pg/ml versus 570 pg/ml) in patients with versus without incident AF. In univariate analysis, NTproBNP was significantly associated with incident AF (OR 1,11, 95% CI 1,03-1,21, P=0,009). In multivariate analysis, age was the strongest predictor of incident AF (highest quartiles versus lowest quartile OR 7,04, 95% CI 2,77 -17,87, P<0,001). NTproBNP (OR 1,09, 95% CI 1,00 -1,20, P=0,049), systolic blood pressure (OR 0,98, 95% CI 0,97 -1,00, P=0,021) and infarct size (OR 1,18, 95% CI 1,04 -1,33, P=0,01) were also independently associated with incident AF. Gender, target lesion vessel and diastolic blood pressure were not associated with incident AF. Kaplan-Meier curves (Figure 1) depict that higher NTproBNP quartile is significantly (P=0,001) associated with incident AF. Figure 1. Kaplan-Meier curves Conclusion: Age is strongly predictive for incident AF in STEMI patients undergoing PPCI. NTproBNP and infarct size are also independent predictors of incident AF, whereas peri-procedural systolic blood pressure is inversely related to incident AF.
    Left ventricular remodeling (LVR), an increase in left ventricular end-diastolic volume index > or = 20%, is an adverse consequence of myocardial infarction. The aim of this study was to assess the association between LVR and adiponectin, which has been shown to protect against myocardial ischemia-reperfusion injury.In 75 patients echocardiographic examination was performed one year after ST-segment elevation myocardial infarction, successfully treated with primary percutaneous coronary intervention (pPCI). Two groups of patients were analyzed: those with LVR (n = 15) and those without LVR (n = 60).The predictors of LVR were: anterior myocardial infarction, glucose at admission, baseline C-reactive protein, adiponectin, and echocardiographic parameters: left ventricular end-diastolic and end-systolic volume indices, ejection fraction < 40% and left ventricular wall motion score index (WMSI) at discharge. On multivariable regression analysis, lower adiponectin level (OR = 0.67, 95% CI 0.49-0.91, p < 0.05) and higher WMSI (OR = 20.14, 95% CI 2.62-154.82, p < 0.01) were the only independent negative predictors of LVR. The optimal cut-off for adiponectin for predicting LVR was < or = 4.7 mg/mL (sensitivity: 73%, specificity: 85%) and this level increased the risk of LVR 15-fold (95% CI 4.05-59.87, p = 0.0001).Baseline low blood adiponectin concentration, along with WMSI, can be considered as a predictor of the LVR in male patients one year after myocardial infarction and pPCI.
    Ventricular remodeling
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    It is known that not only postinfarction left ventricular (LV) remodeling but also chronic regional myocardial hypoperfusion may cause a compensatory hypertrophy of undamaged areas of the left ventricle. Can chronic LV hypoperfusion lead to the development of mitral regurgitation (MR) in CAD patients without previous myocardial infarction We selected patients with significant coronary stenosis (>75%) of at least one epicardial artery who had no acute or previous myocardial infarction: 1162 patients without MR and 76 patients with moderate and severe MR. Patients with MR more often had higher NYHA functional class (II-IV) (91.7 vs 63.0%, p =0.004) and arrhythmias (60.3 vs 14.6%, p<0.001). They also had significantly higher echocardiographic indices of left atrial dimension (23.5+/-2.9 vs. 20.3+/-2.1 mm/m2). MR was independently associated with NYHA class of congestive heart failure, arrhythmias, and index of the left atrium size. No association between MR and the localization of significant coronary lesions was found.
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    Background : The development of heart failure following myocardial infarction (MI) in patients with diabetes mellitus (DM) is related to the extent of the infarction zone and underlying primary diabetic cardiomyopathy. Echocardiography allows the monitoring of systolic dysfunction following MI. Left ventricular ejection fraction (LVEF) is one of the most important prognostic indicators in patients after MI. Methods : The aim of the study was to assess the effect of type 2 DM on postinfarct left ventricular (LV) remodeling in patients with acute ST segment elevation MI treated with primary percutaneous transluminal coronary angioplasty. One hundred and ten patients were enrolled to the study and divided into two groups: group 1 included 41 subjects with type 2 DM, and group 2 included 57 subjects without DM. Echocardiographic parameters of LV systolic function including LVEF, LV end-diastolic volume (LVEDV), and LV end-systolic volume (LVESV) were compared between the study groups. Results : Both study groups showed statistically significant decrease in LVEF. However, significant LV dilatation was seen only in patients without DM but not in patients with DM. Conclusion : Long-term DM leads to the remodeling and the fibrosis of cardiac interstitial tissue, limiting acute ventricular dilatation and resulting in stiffening of the heart.
    Diabetic Cardiomyopathy
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    This study was performed to determine the relation between inducible sustained ventricular tachycardia (ISVT) by programmed electrical stimulation and angiographic, clinical and echographic data in patients with coronary artery disease. The aim of this study was to explore if these inducible arrhythmias are associated with any specific "arrhythmogenic" pattern of coronary artery disease. 129 consecutive patients with coronary artery disease and ISVT were evaluated by left ventriculography and coronary arteriography by standard techniques. The mean age of the patients was 46 years with a range of 21 to 72 years, 74% of them were males. A significant stenosis of the main left coronary artery (>50%) appeared to be more frequent in arrhythmia patients (31%). Also proximal left anterior descending artery stenosis was more frequent in in the arrhythmia patients (48%). "Main left equivalent" lesions, defined as a significant stenosis of the proximal left anterior descending artery and the proximal left circumflex artery was significantly more frequent among the arrhythmia patients (51%). Using the quantitive wall motion analysis, a strong relationship was found between the number of abnormally contracting segments and the presence of inducible sustained ventricular tachycardia. The results of the present study suggest that ISVT in patients with coronary artery disease are more frequently associated with lesions of the main left coronary artery or the proximal left anterior descending artery.
    Circumflex