PMID: 8970412Dec 15, 1996Paper

Comparison of the usefulness of Doppler pressure half-time in mitral stenosis in patients < 65 and > or = 65 years of age

The American Journal of Cardiology
V M AbascalR Davidoff

Abstract

Doppler pressure half-time is a reliable method for estimating mitral valve area when net left atrial and ventricular compliance remain stable. The accuracy of Doppler pressure half-time in estimating mitral valve area in older patients is unknown. We studied 80 patients (65 women and 15 men, aged 56 +/- 14 years) with cardiac catheterization and echocardiography. Mitral valve area was calculated using the Gorlin formula and by the Doppler pressure half-time method. Patients were stratified into those aged < 65 years (n = 57), and those aged > or = 65 years (n = 23). The discordance between pressure half-time and Gorlin-derived mitral valve area was assessed and related to multiple clinical, echocardiographic, and hemodynamic variables. The difference between pressure half-time and Gorlin-derived mitral valve area was greater in the older than in the younger patient (0.34 +/- 0.30 vs 0.15 +/- 0.27 cm2, p = 0.009) but the older group had smaller mitral valve areas by the Gorlin method (0.72 +/- 0.18 vs 0.89 +/- 0.32 cm2, p = 0.02) and lower cardiac output. The difference between pressure half-time and Gorlin remained greater in the group of older patients (0.32 +/- 0.30 vs 0.19 +/- 0.22 cm2, p = 0.04), even when the analysis was...Continue Reading

Citations

Jun 27, 2008·European Journal of Echocardiography : the Journal of the Working Group on Echocardiography of the European Society of Cardiology·Mohammad Raza AkramAdrian Chenzbraun
Oct 7, 2019·Echocardiography·Ahmad Al-TaweelMasood Ahmad

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