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- W4242671452 abstract "The aortic valve separates the left ventricle from the aorta. The hemodynamic changes associated with aortic regurgitation (AR) differ depending on the time–course of the valve dysfunction. In chronic AR, stroke volume increases to maintain effective forward flow. This causes dilation of the LV, leading in some patients to the development of a massively dilated LV termed 'cor bovinum'. An understanding of the hemodynamic changes associated with chronic AR can help in determining cardiac adaptation to the regurgitant flow, and also help determine the severity of AR in patients with moderate AR by angiography or echo but decreased ejection fraction. The two most common blood pressure manifestations associated with chronic AR are a wide systemic pulse pressure and a low aortic diastolic pressure. Echocardiography enables visualization of the valve and identification of congenital abnormalities, rheumatic changes, vegetations, thickening, and/or calcification. Acute AR generally results from endocarditis, aortic dissection, trauma, or failure of a prosthetic valve." @default.
- W4242671452 created "2022-05-12" @default.
- W4242671452 creator A5084342966 @default.
- W4242671452 date "2016-12-31" @default.
- W4242671452 modified "2023-09-27" @default.
- W4242671452 title "Aortic regurgitation" @default.
- W4242671452 cites W2032439632 @default.
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- W4242671452 doi "https://doi.org/10.1002/9781119066491.ch11" @default.
- W4242671452 hasPublicationYear "2016" @default.
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