Excentric hypertrophy

Hemodynamics and ventricular remodeling were studied echocardiographically in 192 men with heart failure (NYHA functional class I), arterial hypertension (AH) of stage I-III and clinical picture of ischemic heart disease (IHD). The latter presented in the patients with stable angina pectoris of FC I-II (SAP), unstable angina pectoris (UAP) without foci, paroxysmal atrial fibrillation, acute myocardial infarction (MI), postinfarction cardiosclerosis (PC) with SAP or UAP. The control group consisted of 41 healthy men...

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No abstract text is available yet for this article.

Systolic and diastolic left ventricular dysfunction is common and important predictor of risk of death in end-stage renal failure. Systolic dysfunction is defined echocardiographically by a shortening fraction < 25% or an ejection fraction < 40%. Systolic dysfunction has a poor prognosis, strongly associated with myocardial ischemia and left ventricular hypertrophy (LVH). Diastolic dysfunction combines relaxation problems with compliance abnormalities and usually is associated with LVH. It is not clinically possible to distinguish systolic from diastolic LV dysfunction...

UNLABELLED: ECG monitoring by means of Holter method provides not only information concerning arrhythmias, episodes of ischaemia of the cardiac muscle, but it is also recognised and generally accepted method of investigation of the influence of autonomic system on heart. The aim of the study was to assess the heart rate variability in patients suffering from essential hypertension with different geometry of left ventricle. The studies involved 70 patients, in that 35 women and 35 men (mean age 56...

UNLABELLED: It has been shown that increased QT dispersion (QTd) reflects electrical inhomogeneity of the myocardium and is associated with high incidence of ventricular arrhythmias. In some cases increased QTd has also been found in some hypertensive patients with left ventricular hypertrophy. The aim of the study was to investigate the relation between QTd and left ventricular (LV) geometry in hypertensive patients (pts). Studied group consisted of 80 pts aged 52.5 +/- 12.6 yrs with mild, moderate and severe hypertension...

Programmed hemodialysis (PHD) was successfully used in 189 of 207 patients with chronic renal failure (CRF) treated in Ulyanovsk Regional Hemodialysis Center for 10 years. To improve PHD results and prevent fatal complications, a search for objective prognostic indices of cardiovascular disease function was initiated. Left ventricular hypertrophy (LVH) development was compared in two groups of patients of different age (group 1--69 young patients aged 18-40 years; group 2--48 elderly patients aged 55-73 years...

Left ventricular hypertrophy (LVH) is common and important predictor of risk of death in end-stage renal failure. In the present study we have analysed the relationship between 24-h ambulatory blood pressure (BP) profile and LVH. The effect of parathyroid hormone (PTH) on was also assessed. From a cohort of 85 patients with crf we selected for analysis 59 stable patients. Ambulatory BP 24-h monitoring, echocardiography (ECHO), body mass index (BMI), serum creatinine, hemoglobin, total protein, albumin, electrolytes and PTH concentrations were assessed in all patients...

To examine relationships between left ventricular geometry and general arterial compliance (GAC) in patients with predialysis chronic renal failure (CRF). 102 patients with predialysis CRF unrelated to diabetes mellitus (males 46, females 56, mean age 49.1 +/- 18.3 years). CRF was caused by chronic glomerulonephritis and essential hypertension (77.4%). 92 (90.2%) patients were hypertensive. Serum creatinin was 432.1 +/- 165.3 mcmol/l. GAC was defined as stroke volume/pulse arterial pressure. Echocardiography determined the index of the left ventricular myocardial mass (ILVMM), relative thickness of the left ventricular wall (RTW)...

Dynamic muscular exercise performed by healthy subjects leads to a rise in the left ventricular blood ejection with an acute increase in the local wall shear stress on the endothelium of the arterial vessels. These hemodynamic changes results in a release of endothelium-dependent relaxing factors, one of them concerns nitric oxide (NO). Therefore an arterial vasodilatation with an acute increase in the blood flow volume to the exercising muscle groups occurs. If more than 1/6 of the skeletal musculature is involved in exercise and if training duration exceeds 3-5 hours a week the chronically increased blood flow volume in the cardiovascular system triggers structural and functional changes of the heart and the arterial vessels...

The life expectancy of hypertonic patients is basically determined by the complications of their disease. The increasing hypertension induces compensated processes in cardiovascular system, however, these alterations further worsen the mortality rates. It is evident that left ventricular hypertrophy (LVH) should be prevented. If it is the case, it has to be moderated among the possible circumstances. To regression of LVH produced by hypertony the decrease of hypertension is not enough, while the process is rather complex...

PURPOSE: To evaluate 2 left ventricular mass index (LVMI) normality criteria for the prevalence of left ventricular geometric patterns in a hypertensive population ( HT ). METHODS: 544 essential hypertensive patients, were evaluated by echocardiography, and different left ventricular hypertrophy criteria were applied: 1 - classic : men - 134 g/m2 and women - 110 g/m2; 2- obtained from the 95th percentil of LVMI from a normotensive population (NT). RESULTS: The prevalence of 4 left ventricular geometric patterns, respectively for criteria 1 and 2, were: normal geometry - 47...

Marked abnormalities in cardiovascular structure and hemodynamic function are present both in normotensive and hypertensive obese individuals. Cardiac abnormalities include excentric left ventricular hypertrophy and left atrial dilatation, a finding compatible with the presence of cardiac volume overload. In contrast, hypertension, often associated with abdominal obesity, is characterized by increased peripheral resistance and concentric hypertrophy. Weight reduction can result in marked improvement of ventricular dimensions and cardiac function in patients undergoing massive weight reduction following bariatric surgery...

A 24-h profile of arterial pressure (AP), structural-geometrical changes of the left ventricle (LV) and severity of hypertensive heart were compared in 47 patients with essential hypertension. Absolute AP and LV geometric models were not related. In patients with concentric LV hypertrophy, the time index (TI) of night systolic hypertension was significantly higher than TI in excentric LV hypertrophy. A relationship was found between mean day systolic pressure, a morning rise in AP and form of LV hypertrophy...

Ventricular remodeling following nonfatal myocardial infarction includes an excentric hypertrophy of the surviving myocardium, associated with hemodynamic overload. Disseminated cardiomyocyte apoptosis and phenotype changes of the surviving myocardium, such as a labile calcium homeostasis of the hypertrophied cardiomyocytes, impaired beta-adrenergic signal transduction, interstitial fibrosis, and reduced coronary reserve are typical features of the overloaded, distended ventricular wall. They are considered as relevant for the myocardial dysfunction progressing to overt cardiac failure and for the enhanced mortality risk...

Calculation of left ventricular mass by M mode echo is based on the assumption that the geometry of the left ventricle is an ellipsoid, the long axis of which is twice that of its short axis. The hypothesis in not always true and often leads to overestimation of the ventricular mass. The authors propose a method combining M mode data (end diastolic dimension, septal and posterior wall thickness) and 2D measurement of the left ventricular long axis: the left ventricular mass was measured by Devereux's and the authors' methods in 185 hypertensives...

Left ventricular hypertrophy (LVH) is one of the major cardiovascular risk factors. Without treatment a concentric form with left ventricular dysfunction develops characteristically into an excentric form with progressive heart failure. Many pathogenetically important factors are known. Treatment is possible with life-style modification and nearly all first-line antihypertensive drugs. It should aim at prevention or permanent normalisation of an existing LVH.

OBJECTIVES: Clinical and electrocardiographic and echocardiographic data were collected in 50 black Africans with hypertension to study modifications in left ventricular geometry. METHODS: Thirty men and 20 women with hypertension (mean age 40.9 +/- 10.2 years) who had recently immigrated from Africa were included in the study. Parameters recorded were: systolic and diastolic pressures, body mass index (BMI = weight/height2); ECG; echocardiography (36 patients): end diastolic septal and posterior wall thickness, left ventricle diameter, left ventricle mass (LVM) and relative wall thickness...

A major consequence of chronic cardiac dysfunction is chronic overload of contractile myocardium. Various aetiologies, in reaction to this, may induce compensatory mechanisms consisting of excentric (dilatation) and concentric hypertrophy. Chronic left ventricular dysfunction is caused most frequently by myocardial infarction. Left ventricular dilatation and hypertrophy occurs in patients with extensive infarction. Dilatation may at first be compensatory, restoring stroke volume within 4 weeks of the infarct...

Congestive heart failure is a frequent complication of massive obesity and a major cause of death. Prior to the cardiac decompensation stage, infraclinical haemodynamic disturbances can be observed in obese subjects with normal blood pressure: the cardiac output and cardiac index increase, due to a rise in systolic ejection volume, the total peripheral resistance falls and the intravascular volume augments. Cardiac adjustment takes place in the form of excentric left ventricular hypertrophy. Ventricular extrasystoles, often associated with this hypertrophy, might be the cause of sudden death in some obese patients...