Late left ventricular diastolic flow propagation velocity determined by color M-mode Doppler in the assessment of diastolic dysfunction - 24/08/11

Abstract |
Background |
Early color M-mode Doppler flow propagation (Ep) through the left ventricle (LV) has been proposed as a useful noninvasive index for assessing LV relaxation, whereas data concerning late velocity propagation (Ap) is lacking.
Methods |
We studied 51 patients with delayed relaxation (group I) and 50 with pseudonormal filling pattern (group II). Another 51 aged-matched healthy persons served as the control group.
Results |
Patients showed increased left atrial dimensions, atrial wave of the pulmonary vein flow, and Ap, and reduced LV ejection fraction, Ep, and Ep/Ap ratio compared with the control group. Patients in group II revealed increased left atrial dimensions (P = .001), atrial wave of the pulmonary vein flow (P < .001), and Ep/Ap ratio (P < .001), and reduced LV ejection fraction and Ap (P < .001) compared with group I. Regression analysis showed that the strongest independent variable distinguishing normal from pseudonormal filling pattern was the Ep/Ap ratio.
Conclusion |
Ap evaluation offers a new diagnostic diastolic index, especially in the field of the pseudonormal pattern where the separation from normal is difficult.
Le texte complet de cet article est disponible en PDF.Plan
Vol 17 - N° 2
P. 139-145 - février 2004 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Déjà abonné à cette revue ?
