THE human aortic valve consists of three cusps made of relatively inelastic, muscle-free material about 0.15 mm thick. It opens and shuts about once a second, and withstands a pressure difference ...

"As an aside, the Ross procedure, which is my preference in this age group, is the only aortic valve replacement procedure ...

DAVID MONTGOMERY: Aortic stenosis is a tightening of one of the four major valves of the heart. The aortic valve is particularly important because the aortic valve is the gateway to the rest of ...

Jan 29 (Reuters) - Middle-aged adults who need an aortic valve replacement fare better with mechanical devices than with the valves made from animal tissues that they currently most often receive ...

Calcification of the aortic valve, pulmonary congestion, and post-stenotic dilation of the aorta are other non-specific findings. Critical N/A < 0.7 Cardiac catheterization is indicated when the ...

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 ...

The researchers reviewed data on nearly 110,000 patients who underwent surgical replacement of aortic valves between the ages of 40 and 79. They found that in those aged 60 or younger, mechanical ...

Aortic regurgitation occurs when blood flows retrograde (backwards) across the aortic valve from the aorta into the left ventricle during diastole. This abnormal backflow of blood leads to patholo ...

Aims Exercise testing remains underused in patients with aortic stenosis (AS), partly due to concerns about an ...

During the study, 39% (n=35) of those in the medical therapy ... Van Mieghem et al, Transcatheter Aortic Valve Replacement in ...

Patients with low-gradient aortic stenosis and reduced LVEF, compared with patients with high-gradient aortic stenosis, have worse clinical outcomes.

Description Aortic stenosis occurs when the aortic valve, which separates the main pumping chamber of the heart from the circulation, becomes narrowed. This may reduce the flow of blood out of the ...