Key result
Ultrasound Doppler with on-line spectral analysis closely estimated prosthetic mitral valve pressure gradients compared to intracardiac catheterization, with slight systematic underestimation.
Why the study?
Does ultrasound Doppler technique with on-line spectral analysis accurately estimate transprosthetic pressure gradients compared to conventional intracardiac catheterization in patients with prosthetic mitral valves?
Population
Patients with prosthetic mitral valves
Comparison
Ultrasound Doppler technique combined with… vs Conventional intracardiac catheterization
Design
Cross-sectional
Authors
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May aid noninvasive prosthetic mitral valve assessment; leaves open prospective validation before clinical adoption.
Observational
Does ultrasound Doppler technique with on-line spectral analysis accurately estimate transprosthetic pressure gradients compared to conventional intracardiac catheterization in patients with prosthetic mitral valves?
Ultrasound Doppler with spectral analysis provides a non-invasive method to estimate prosthetic mitral valve pressure gradients that closely correlates with invasive catheterization, despite slight underestimation.
Hatteland et al. (1985) conducted an observational in Prosthetic mitral valves. Ultrasound Doppler technique with on-line spectral analysis vs. Conventional intracardiac catheterization was evaluated on Transprosthetic pressure gradients. Ultrasound Doppler with on-line spectral analysis closely estimated prosthetic mitral valve pressure gradients compared to intracardiac catheterization, with slight systematic underestimation.
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