The prognostic value of tissue Doppler imaging in acute myocardial infarction patients
- VernacularTitle:组织多普勒成像对急性心肌梗死远期预后的评价
- Author:
Lan YE
;
Changyu ZHOU
;
Chenghuan ZHENG
;
Wei CAI
;
Jinrong CAI
;
Guangping LI
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Myocardial infarction;
Heart failure,congestive
- From:
Chinese Journal of Ultrasonography
2008;17(3):200-203
- CountryChina
- Language:Chinese
-
Abstract:
Objective To assess the prognostic value of tissue Doppler imaging(TDI) parameters in aeute myocardial infarction(AMI) patients. Methods After one week of AMI,102 patients underwent twodimensional/Doppler echocardiography and TDI examination.Early and late transmitral flow velocity E,A,deceleration time(DT)were measured. The average velocity of mitral valve at septal and lateral weremeasured including the systolic velocity(Sm),early diastolic velocity(Em)and late diastolic velocity(Am),Em/Am,E/Em were calculated.After 1 year follow up,the patients were divided into two groups according to whether hospitalizated due to heart failure(HF)or not. Stepwise multivariate COX regression analysis was used to identify the predictors of the cardiac event. Results In patients with H F,Sm,Em were lower than those of no HF group(P＜0.05),E,E/Em were higher than those of no HF group(P＜0.05 and0.01 respectively). Stepwise multivariate COX analysis identified that the E/Em was the only independent predictors of HF.E/Em≥12 was a useful HF predictors with a sensitivity of 84.2%,specificity of 77.1%.Conclusions E/Em ratio may assist in the risk stratification in AMI,and is a powerful predictor of HF.
