Journal of the American Society of Echocardiography
Mitral Annulus Velocity in the Evaluation of Left Ventricular Diastolic Function in Atrial Fibrillation☆,☆☆,★
Section snippets
Subjects
Left ventricular pressure measurement and Doppler examination were performed simultaneously in patients with nonrheumatic atrial fibrillation who were undergoing clinically indicated left ventriculography, coronary angiography, aortography, or electrophysiologic study between May 1997 and September 1998 at the Seoul National University Hospital cardiac catheterization laboratory. Patients with valvular stenosis, significant valvular regurgitation, unstable angina, regional wall motion
Mitral Annulus Velocity and Rate of Relaxation (tau)
Among deceleration time of mitral inflow, E, and E ́, only E ́ correlated with tau (r = 0.51, P = .007) (Figure 1).Five patients with a mean tau of <50 ms showed mean E ́ of 10.8 ± 3.0 cm/s, and 22 patients with a mean tau of ≥50 ms showed a mean E ́ of 7.2 ± 1.7 cm/s (P < .05). E ́ <8 cm/s was a highly specific index of prolonged rate of myocardial relaxation (sensitivity 73%: 16 of 22 patients, specificity 100%: 5 of
DISCUSSION
Despite the clinical prevalence of atrial fibrillation, conventional Doppler mitral inflow and pulmonary venous flow indexes used in the evaluation of left ventricular diastolic function could not be applied in atrial fibrillation.
References (13)
- et al.
Differentiation of constrictive pericarditis from restrictive cardiomyopathy: assessment of left ventricular diastolic velocities in longitudinal axis by Doppler tissue imaging
J Am Coll Cardiol
(1996) - et al.
Assessment of mitral annular dynamics during diastole by Doppler tissue imaging: comparison with mitral Doppler inflow in subjects without heart disease and in patients with left ventricular hypertrophy
Am Heart J
(1996) - et al.
Clinical application of pulsed Doppler tissue imaging for assessing abnormal left ventricular relaxation
Am J Cardiol
(1997) - et al.
Assessment of mitral annulus velocity by Doppler tissue imaging in the evaluation of left ventricular diastolic function
J Am Coll Cardiol
(1997) - et al.
Doppler tissue imaging: a noninvasive technique for evaluation of left ventricular relaxation and estimation of filling pressures
J Am Coll Cardiol
(1997) - et al.
Intraventricular dispersion of early diastolic filling: a new marker of left ventricular diastolic dysfunction
Am Heart J
(1995)
Cited by (0)
- ☆
Supported in part by grant 02-1997-029-0 from the Seoul National University Hospital.
- ☆☆
Reprint requests: Dae-Won Sohn, MD, Division of Cardiology, Department of Internal Medicine, Seoul National University, College of Medicine, 28 Yungun-Dong, Chongno-Gu, Seoul 110-744, Korea.
- ★
0894-7317/99 $8.00 + 0 27/1/101005