Quantitative assessment of the hemodynamic consequences of aortic regurgitation by means of continuous wave doppler recordings

摘要: The purpose of this study was to evaluate the ability continuous wave Doppler ultrasound recordings reflect magnitude and hemodynamic effects aortic regurgitation. Forty-five patients with angiographically proved regurgitation had studies performed within 24 hours cardiac catheterization. High quality spectral regurgitant jet were obtained in 31 patients, whereas 14 exhibited dropout high velocity signals precluding measurement maximal velocities. slope peak end-diastolic decrease measured by examination compared decay left ventricular diastolic pressure gradient catheterization found correlate well (r = 0.86). generally higher severe rather than mild or moderate regurgitation, but considerable overlap pres- ent among groups. However, a greater 3 m/s2was seen only those advanced (3 4 + ) Left estimated from subtracting modified Bernoulli equation cuff blood pressure. A correlation observed 0.84) between data, although SEE substantial (5.5 mm Hg). These data demonstrate that can be useful assessing angiographic severity hemodynamics