The pressure half-time index is the time it takes for the ... total stroke volume returns to the LV retrograde across the aortic valve during diastole. A regurgitant fraction of < 20% indicates ...

The pressure half-time index is the time it takes for the ... the regurgitant orifice (in the case of aortic regurgitation, the aortic valve). (Zoghbi WA, et al. J Am Soc Echocardiogr.

As your heart beats, it pumps blood from the left ventricle through the aortic valve and into the aorta, your body’s largest artery. The aortic valve is made up of three triangular flaps of ...

A late-breaking study presented today at the 2025 Society of Thoracic Surgeons (STS) Annual Meeting reveals that mechanical aortic valve replacements (AVRs) provide significant long-term survival ...