Non-invasive ultrasound Doppler echocardiography accurately determined the pressure gradient in mitral stenosis compared to manometric data, with a mean diastolic difference of -0.54 +/- 1.0 mmHg.
Observational (n=8)
Does non-invasive ultrasound Doppler echocardiography accurately determine the pressure gradient in adult patients with mitral stenosis compared to invasive catheterization?
Non-invasive ultrasound Doppler echocardiography is sufficiently accurate for determining the pressure gradient in mitral stenosis compared to invasive catheterization.
Effect estimate: Mean difference -0.54 mmHg
The accuracy of a non-invasive ultrasound Doppler technique for the determination of the pressure gradient in mitral stenosis was evaluated in a study of 8 adult patients. Transseptal left atrial catheterisation and retrograde left ventricular catheterisation were performed. The same diastoles were used to compare the gradient constructed from the ultrasound data (delta PU) with that constructed from the manometric data (delta PM). In the 8 patients the difference betweent he mean diastolic values of delta PU and delta PM was - 0.54 +/- 1.0 (SD) mmHg. The corresponding figure for mid-diastole was 0.01 +/- 0.9 (SD) mmHg. The results indicate that the ultrasound technique is sufficiently accurate for diagnostic purposes.
Holen et al. (Tue,) conducted a observational in Mitral stenosis (n=8). Ultrasound Doppler technique vs. Manometric data (catheterisation) was evaluated on Difference between mean diastolic values of pressure gradient from ultrasound and manometric data (Mean difference -0.54 mmHg). Non-invasive ultrasound Doppler echocardiography accurately determined the pressure gradient in mitral stenosis compared to manometric data, with a mean diastolic difference of -0.54 +/- 1.0 mmHg.
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