Aortic Regurgitation
Severe valvular disease, COVID-19 mortality ‘approaching’ 50% at 30 days
Thirty-day mortality among patients with severe valvular heart disease and COVID-19 topped more than 40%, according to data presented at the virtual Society for Cardiovascular Angiography and Interventions Scientific Sessions.
OVAL
Clinical feasibility study of quantitating aortic regurgitation via online videodensitometry in the cath lab in patients needing transcatheter aortic valve replacement.
UK TAVI: In real-world population, TAVR noninferior to surgery at 1 year
In the UK TAVI randomized pragmatic trial of older real-world patients with severe symptomatic aortic stenosis, those who underwent transcatheter aortic valve replacement had similar stroke, major bleeding and all-cause mortality at 1 year compared with patients who underwent surgical AVR.
Low-risk TAVR for bicuspid valves yields few adverse events
In patients with bicuspid aortic valves at low risk for surgery who underwent transcatheter aortic valve replacement with a self-expanding valve, only 1.3% died or had a disabling stroke at 30 days, according to new data presented at the virtual American College of Cardiology Scientific Session.
Fluoroquinolones pose risk for aortic, mitral regurgitation
Current and recent use of fluoroquinolones, but not past use, were associated with elevated risk for aortic and mitral regurgitation, researchers reported.
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Law of LaPlace Topic Review
The Law of LaPlace describes the factors that determine left ventricular wall stress, which is a major determinant of myocardial oxygen demand.
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Pulsus Bisferiens
Pulsus bisferiens occurs in patients with significant aortic valve regurgitation.
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Diastolic Murmurs
Diastolic murmurs include aortic and pulmonic regurgitation (early diastolic), and mitral or tricuspid stenosis (mid-late diastolic).
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Aortic Regurgitation
Aortic regurgitation occurs when blood flows retrograde (backwards) across the aortic valve from the aorta into the left ventricle during diastole.
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Afterload
Afterload is the hemodynamic parameter that reflects the force that the left ventricle has to overcome to eject blood through the aortic valve.