What does increased blood flow velocity above the aortic valve mean?

Increased flow velocity above the aortic valve is a finding from echocardiography, which may be caused by conditions such as aortic stenosis, hypertension, or hyperthyroidism. The specific analysis is as follows:

1. Aortic Stenosis

When patients have aortic stenosis, the left ventricular ejection time during systole is prolonged. To increase cardiac output, myocardial contractility increases, leading to hemodynamic changes. During echocardiography, this may manifest as increased flow velocity above the aortic valve. Generally, the higher the measured flow velocity, the more severe the degree of aortic valve stenosis. Surgical intervention is usually required for treatment.

2. Hypertension

In patients with long-standing high blood pressure, elevated pressure in the aorta can increase stress on the aortic valve, causing it to close too quickly and resulting in increased flow velocity on imaging. Treatment under medical supervision may include medications such as nifedipine controlled-release tablets, valsartan-amlodipine besylate tablets, or metoprolol succinate extended-release tablets.

3. Hyperthyroidism

In patients with hyperthyroidism, excessive secretion of thyroid hormones enhances myocardial contractility, increasing the rate of blood pumping and consequently leading to increased flow velocity. Treatment should follow medical advice and may include antithyroid drugs such as methimazole tablets, propylthiouracil tablets, or metoprolol tartrate tablets.

In addition, other conditions such as anemia, mitral regurgitation, or aortic regurgitation may also lead to this finding. It is important to promptly visit the hospital for further evaluation to determine the underlying cause and receive appropriate treatment.