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For high-risk patients with heart complications, open-heart surgery isn’t always the safest option. Now, doctors at Tucson Medical Center are working to provide effective, and less invasive, ...

Turbocharger use is more prolific than ever, and understanding how one works explains why it's such a popular choice.

Valvular disease is a pathological condition affecting one or more of the heart valves. Aortic stenosis is a common cause of valve disease and has a genetic basis. Two complementary papers perform ...

Rheumatic heart disease is a chronic valvular disorder resulting from acute rheumatic fever, predominantly affecting the mitral valve and characterized by progressive fibrotic thickening. Although the ...

Abstract: Torque ripple is an important concern in air conditioning compressor systems operating at low frequencies. An algorithm for suppressing compressor torque ripple is proposed to address the ...

Background On echocardiography approximately one-third of patients with severe aortic valve stenosis based on aortic valve area (AVA<1.0 cm 2) demonstrate a non-severe mean pressure gradient (ΔPm; ≤40 ...

Unlike centrifugal pumps, positive displacement sliding vane pumps are dry-run capable, which means they do not need to be ...

Among patients with aortic regurgitation (AR) undergoing TAVR with the Trilogy valve, the rate of mortality at one year was 8.1%, significantly lower than the prespecified goal of 25% to show ...