Doppler tisular del anillo mitral en pacientes con disfunción sistólica ventricular izquierda. Análisis de la función diastólica

Content Provider	Semantic Scholar
Author	Garriz, Ignacio Iglesias García, Miguel Ángel Rodríguez Fernández, Silvia Delgado Coloma, Carmen Garrote Ibarretxe, Mar Sastre Fernández, Félix Corral
Copyright Year	2000
Abstract	Introduction and objectives. We assessed the Doppler tissue imaging technique in the left mitral annulus of patients with left ventricular systolic dysfunction since the technique has been used to evaluate diastolic function of the left ventricle and the values obtained have been considered to be relatively independent of the preload. Patients and methods. Patients (n = 46) with an ejection fraction < 40% in sinus rhythm without mitral regurgitation underwent pulsed wave Doppler analyses of mitral inflow (E and A waves), pulmonary venous flow (S, D and Ar waves) and Doppler tissue imaging of the mitral annulus (Ea and Aa waves). Results. Overall, the linear correlations between the different Doppler measurements were poor. When subgrouped with respect to E/A < 1 and E/A ♢ 1 (Groups 1 and 2, respectively), the Ea value did not significantly differ between the two groups: 5.0 cm/s (4.2/6.0) vs 6.2 cm/s (5.5/8.2) respectively; p = 0.129 and neither did the E/Ea quotient: 10.2 (8.2/14.5) vs 12.9 (9.1/17.4) respectively; p = 0.160. Atrial size was significantly greater in Group 2: 20.0 cm 2 (18.0/22.0) vs 25.0 cm 2 (20.0/29.0) respectively; p = 0.000. The Ea/Aa quotient was pseudo-normalized in Group 2: 0.65 (0.48/0.83) vs 1.15 (0.75/1.71) respectively; p = 0.001. Conclusion. In patients with left ventricular systolic dysfunction the Ea/Aa value tends towards pseudo-normalization when the preload is increased. This does not apply to the values of Ea, E/Ea or to size of the left atrium. Therefore, Doppler tissue imaging of the left mitral annulus is valuable in the assessment of left ventricular dysfunction and the problem of pseudo-normalization due to preloading.
Starting Page	1195
Ending Page	1200
Page Count	6
File Format	PDF HTM / HTML
DOI	10.1016/S0300-8932(00)75225-0
Volume Number	53
Alternate Webpage(s)	https://www.revespcardiol.org/index.php?p=revista&pii=X0300893200110079&tipo=pdf-simple
Alternate Webpage(s)	https://doi.org/10.1016/S0300-8932%2800%2975225-0
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article