Usefulness of Dobutamine Echocardiography in the Hemodynamic Assessment of Mechanical Prostheses in the Aortic Valve Position

Dobutamine stress echocardiography is a simple, safe, and readily available method to evaluate prosthetic valve hemodynamics under various flow conditions. A normal response of aortic valve prostheses to dobutamine infusion is a 100% increment in transprosthetic pressure gradients with an unchanged...

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Bibliographic Details
Published in:The American journal of cardiology 1997-08, Vol.80 (4), p.523-526
Main Authors: Zabalgoitia, Miguel, Kopec, Keith, Abochamh, Dia A., Oneschuk, Lori, Herrera, Cesar J., O’Rourke, Robert A.
Format: Article
Language:English
Subjects:
Adrenergic beta-Agonists
Aged
Aortic Valve - diagnostic imaging
Aortic Valve - physiopathology
Aortic Valve - surgery
Biological and medical sciences
Cardiology. Vascular system
Coronary vessels
Dobutamine
Drug therapy
Echocardiography, Doppler - methods
Endocardial and cardiac valvular diseases
Female
Heart
Heart Valve Prosthesis
Hemodynamics
Humans
Male
Medical imaging
Medical sciences
Middle Aged
Predictive Value of Tests
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Description
Summary:Dobutamine stress echocardiography is a simple, safe, and readily available method to evaluate prosthetic valve hemodynamics under various flow conditions. A normal response of aortic valve prostheses to dobutamine infusion is a 100% increment in transprosthetic pressure gradients with an unchanged valve area.
ISSN:0002-9149
1879-1913
DOI:10.1016/S0002-9149(97)00410-4