9/17/2023 0 Comments Lagu enase e e e e![]() ![]() Anatomically, the atria are more posterior to the ventricles, but for ease of understanding, are often drawn "above" them. It has four chambers: two "upper" chambers called the atria, and two "lower" chambers called the ventricles. The heart is a biological pump designed to move blood through the brain and body. This phenomenon is referred to as diastolic dysfunction and can eventually lead to the symptoms of heart failure. ![]() Abnormalities in the E/A ratio suggest that the left ventricle, which pumps blood into the systemic circulation, cannot fill with blood properly in the period between contractions. It is calculated using Doppler echocardiography, an ultrasound-based cardiac imaging modality. It represents the ratio of peak velocity blood flow from left ventricular relaxation in early diastole (the E wave) to peak velocity flow in late diastole caused by atrial contraction (the A wave). ![]() The E/A ratio is a marker of the function of the left ventricle of the heart. ![]()
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