the present study attempted to compare the structural and functional changes of left heart ventricle in female basketball players of khuzestan superior league (aged between 18 and 29) during regular training and long-term detraining. out of 30 female players, 15 subjects were assigned randomly to regular training group and 15 subjects to long-term detraining group. the structural and functional...

The aim. To examine the features of structural and functional changes heart in patients with chronic failure preserved left ventricular ejection fraction (CHF pr EF) excess body weight depending on presence form atrial fibrillation (AF). Materials methods. study involved 248 CHF EF weight, mean age was 65.0 ± 11.0 years, 146 females (58.9 %) 102 males (41.1 %). first group included 181 without ...

Duplex scanning of the carotid bifurcation has emerged as an accurate noninvasive means of predicting and quantifying carotid arterial stenoses. Compared with the more widely reported measurements of spectral broadening and peak frequency ratios, measurements of diastolic velocity ratios have theoretical advantages in predicting carotid artery stenosis. The use of diastolic velocity ratios betw...

BACKGROUND AND OBJECTIVES Pulmonary arterial hypertension (PAH) is a major cause of morbidity and mortality among patients with congenital heart disease (CHD). Earlier diagnosis of PAH would be of great benefit for the estimation of the CHD, the grasp of the indications for surgery and prognosis. PATIENTS AND METHODS We assessed the diagnostic accuracy of Doppler echocardiography (D-ECHO) in ...

The influence of atrial systole on the left ventricular function curve (stroke volume vs end-diastolic pressure or end-diastolic diameter) and on the left ventricular end-diastolic pressure diameter relation was studied in nine anesthetized, open-chest dogs whose atrioventricular (AV) node had been completely blocked. Measurements were made during volume loading with the pericardium closed and ...

The purpose of this study was to induce myocardial infarction (MI) and compare the echocardiographic parameters and mortality ratio of Lewis inbred and Wistar outbred strain before and after the procedure to help choose the best one for MI studies. In this study MI was induced in 46 Lewis and 34 Wistar by occlusion of left anterior descending artery (LAD). Doppler, two-dimensional (2-D) and 2-D...

We studied left ventricular (LV) pressure-diameter relations in 13 open-chest mongrel dogs to explore whether ventricular filling is passive, active, or a combination of both. Left ventricular internal diameter along the minor axis and thickness of the LV free wall were measured with ultrasonic dimension gauges. Pressures in the LV, left atrium (LA), and aorta were measured with catheter-tip mi...

Neural crest cells are known to contribute to the normal architecture of the heart and aortic arch arteries. Ablation of neural crest cells over somites 1 to 3 in the chick embryo prevents conotruncal septation and results in persistent truncus arteriosus. To determine whether a deficiency of cardiac neural crest cells produces hemodynamic changes prior to the development of identifiable struct...

Twelve cyclists and 12 long distance runners matched for age, height, and weight with two control groups of 12 non-athletes were studied echocardiographically to evaluate cardiac structure and function. Runners weighed 8 kg less than cyclists, but age and height were similar. Peak oxygen uptake per kg body weight was higher in athletes than in the control subjects but was similar in the cyclist...