can increase both pressure and volume in the left atrium, causing it to enlarge. Another possible cause of LAE is aortic stenosis. This is the narrowing of the aortic valve, which can lead to ...

The ECG in patients with aortic regurgitation is non-specific and may show LVH and left atrial enlargement. In acute aortic regurgitation, sinus tachycardia due to the increased sympathetic ...

Mild poststenotic dilatation and increased left atrium/aortic root transverse ratio is noted. Blood flow velocity in the left ventricular outflow tract (LVOT) of the same patient (Figure 3 ...

this time in the left atrium. The semilunar valves stop the back flow of blood into the heart. There is a semilunar valve where the aorta leaves the left ventricle and another where the pulmonary ...

The ECG in patients with aortic stenosis frequently shows left ventricular hypertrophy with strain and left atrial enlargement; however, these findings are non-specific for aortic stenosis.

In normal subjects, the left atrial "kick" contributes in the range of 20% to the stroke volume. Since this percentage increases substantially in aortic stenosis, the loss of the atrial kick with ...

All infants had hemodynamically significant PDA determined clinically and echocardiographically (left atrial/aorta (LA/Ao) ratio >1.3 or the narrowest diameter of the PDA shunt on color Doppler ...

It likewise opens due to a build-up of pressure, this time in the left atrium. The semilunar valves stop the back flow of blood into the heart. There is a semilunar valve where the aorta leaves ...