Use of dobutamine stress echocardiography in assessing mechanical aortic prostheses: comparison with exercise echocardiography.

@article{Zabalgoitia1997UseOD,
  title={Use of dobutamine stress echocardiography in assessing mechanical aortic prostheses: comparison with exercise echocardiography.},
  author={Miguel Zabalgoitia and Krzysztof Kope{\'c} and L C Oneschuk and William Linn and C J Baquero Herrera and Robert A O'rourke},
  journal={The Journal of heart valve disease},
  year={1997},
  volume={6 3},
  pages={253-7}
}
BACKGROUND AND AIMS OF THE STUDY Relatively high resting flow velocities are occasionally seen in asymptomatic patients with apparently normal mechanical aortic prostheses. Doppler echocardiography in conjunction with bicycle exercise or dobutamine have been used to 'unmask' symptoms or abnormal hemodynamics in these patients. The aim of this study was to compare the Doppler-derived hemodynamic response to exercise and to dobutamine in patients with normally functioning mechanical aortic… CONTINUE READING

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