doppler echocardiography (de) is known to be a valuable tool for detecting subclinical forms of valvular regurgitation (vrj in theacutephase of rheumatic fever (rf). previous studies have mostly dealt with the acute phase problem with only short-term follow-up. in this study, 24 children between 4-15 years of age (mean age ii.x±2.7 years) with rf without clinically diagnosed carditis (most with...

The usefulness of the ascorbate dilution method in demonstrating intracardiac shunts and valvular incompetence is known. The ascorbate technique can also be applied to the determination of the transit time of regional vascular beds such as the coronary and the renal systems. Furthermore, the determination of central circulation times may be helpful in the diagnosis of caval obstruction. The met...

Valvular regurgitation represents an important cause of cardiovascular morbidity and mortality. Echocardiography has become the primary non-invasive imaging method for the evaluation of valvular regurgitation. The echocardiographic assessment of valvular regurgitation should integrate the quantification of the regurgitation, assessment of the valve anatomy and function, as well as the consequen...

Valvular regurgitation represents an important cause of cardiovascular morbidity and mortality. Echocardiography has become the primary non-invasive imaging method for the evaluation of valvular regurgitation. The echocardiographic assessment of valvular regurgitation should integrate quantification of the regurgitation, assessment of the valve anatomy, and function as well as the consequences ...

The valvular disease usually involves two conditions: valvular stenosis and valvular insufficiency. Valvular stenosis occurs when a valve opening is smaller than normal due to stiff or fused leaflets. The narrowed opening may make the heart work very hard to pump blood through it. This can lead to heart failure. All four valves can be stenotic (hardened, restricting blood flow); the conditions ...

OBJECTIVE To evaluate the incidence and development of valvular regurgitation and its effect on racing performance in Standardbred trotters from 2 to 3.5 years of age. DESIGN Longitudinal observational study. ANIMALS 103 horses. PROCEDURE Horses were examined via echocardiographic imaging 4 times at 6-month intervals. Two-dimensional and M-mode echocardiographic examinations were performe...

RATIONALE Doppler echocardiography has been demonstrated to be accurate in diagnosing valvular lesions in rheumatic heart disease (RHD) when compared to clinical evaluation alone. OBJECTIVE To perform Doppler echocardiography in children clinically diagnosed by the Jones criteria to have acute rheumatic fever (ARF), and to then compare the effectiveness of echo in detecting single/multi-valvu...

Valvular heart lesions have deleterious effects on hemodynamics in parturients during pregnancy. Cesarean section with an opioid-based general anesthesia is used to alleviate the adverse effects. We described a case of a 28-year-old primigravida at 37 weeks’ gestation with a diagnosis of severe mitral regurgitation, tricuspid regurgitation, and pulmonary hypertension in active labor. Cesarean s...

OBJECTIVE In this study we compared cardiothoracic ratio on chest radiography and left ventricular dimensions from echocardiography in patients with left heart valvular regurgitation. METHODS The studied population consisted of 107 patients (55 male, 52 female) aged 7 to 25 years (11.6+/-4.7 years) with isolated mitral or aortic regurgitation. Chest radiography and echocardiographic examinati...

R-wave synchronous equilbrium radionuclide angiography (RNA) is a noninvasive method that provides time-activity curve count information proportional to ventricular volumes and is used for relative volume comparisons within the left or right ventricle to derive the ejection fraction. Comparison of the ventricular count output between both ventricles may permit quantitation of the relative amoun...