Sign up with one click: Facebook Twitter Google Share on Facebook (redirected fromatrial contraction) Thesaurus Medical a·tri·al (ā′trē-əl) adj. 1.Of or relating to an architectural atrium. 2.Of or relating to an anatomical atrium. ...
Atrial systole is a phase of the cardiac cycle. The cardiac cycle is the series of events that takes place during a heartbeat. The cardiac cycle has two major phases. These two major phases are the systole and diastole phases. Answer and Explanation:1 ...
and the coronary arteries, location of the coronary vessels at the root of the aorta, emergence of the coronary arteries at a right angle, the bulk and swiftness of the blood current in this portion of the aorta, and the fact that the major part of coronary filling occurs in diastole.49...
What is an ECG or an EKG? What is ventricular preload? What is atrial diastole, and what is ventricular diastole? How do these alternate in the cardiac cycle? What medications may cause PVCs to develop? Describe the seriousness and consequences of atrial fibrillation. ...
Reduced cardiac outputby atrial systole loss, cardiac output is reduced by 20-30% and by shortening of the diastole, cardiac output is reduced in proportion to the increase of ventricular rate; Worsening of hemodynamic status, particularly in patients withheart failure, mitral stenosis and ventricul...
Cardiac function of the left ventricle (LV) and left atrium (LA), including LVEF, LV fractional shortening (LVFS), LV internal dimensions at diastole/systole (LVIDd/LVIDs), and LA diameter, were evaluated using echocardiography with Vevo TM 2100 (Visual Sonics Inc., Ontario, Canada) in the...
Atrial premature depolarizations elicited earlier in atrial diastole are followed by less than compensatory return cycles. The duration of the less than compensatory A 2 A 3 cycle is determined by the retro- grade conduction time from the atrium to the sinus node (A 2 SAN 2 ), the sinus ...
There are two possible approaches: the estimate of SP and DP based on the amplitude of the oscillations, or the estimate based on the slope of the envelope interpolating the oscillations.18 Amplitude method: systole and diastole are fixed percentages of the maximum oscillation amplitude (...
SVT, Supraventricular tachycardia; ECG, electrocardiogram.(Reproduced with permission from Williams et al.37) These observations emphasize that the importance of atrioventricular synchrony is the timing, not the force, of the atrial contraction in late ventricular diastole. A useful analogy is to think...
On average, the proportion of reversed to forward flow was 2 1% (Table 2). By inspecting simultaneously the fast trace ECG, the aortic Doppler flow tracing, and the vena caval Doppler flow tracing, we found that flow reversal in the IVC occurred during diastole in conjunction with a P ...