Predictors of Cardiac Events After Cardiac Resynchronization Therapy With Tissue Doppler-Derived Parameters
Journal of Cardiac Failure , Volume 13 - Issue 10 p. 805- 811
Background: To evaluate the prognostic value of tissue Doppler imaging (TDI)-derived parameters (E/E′ ratio and Tei index) in heart failure (HF) patients who underwent cardiac resynchronization therapy (CRT). Methods and Results: The study comprised 74 consecutive HF patients (mean age 60 ± 11 years) who underwent CRT. Echocardiography including TDI measurements was performed in all patients at baseline and 3 months after CRT. During a median follow-up period of 720 days (range 210 to 1020 days), 21 patients (28%) had events (8 deaths, and hospitalization for HF in the remaining 13). From the baseline clinical and echocardiography data, univariable Cox-regressions analysis revealed that only diabetes (hazard ratio [HR] 3.703, P < .01), E/A ratio (HR 3.492, P < .001), and E/E′ ratio (HR 1.130, P < .001) were predictors for cardiac events. From the 3-month follow-up data, the E/A ratio (HR 2.988, P < .005), E/E′ ratio (HR 1.170, P < .001), left ventricular ejection fraction (HR 0.835, P < .01), deceleration time (HR 0.977, P < .05), and the Tei index (HR 15.784, P < .001) were predictors for cardiac events. After multivariable analysis, only diabetes (HR 5.544, P < .05), the 3-month E/E′ ratio (HR 1.229, P < .001), and change in Tei index (HR 32.174, P < .001) were independent predictors for cardiac events. Patients with a high baseline and 3-month follow-up E/E′ ratio had an 88% cardiac event rate. Conclusions: The Tei index and E/E′ ratio are independent predictors of poor response and cardiac events after CRT.
|Heart failure, cardiac resynchronization therapy, echocardiography, prognosis|
|Journal of Cardiac Failure|
|Organisation||Erasmus MC: University Medical Center Rotterdam|
Soliman, O.I.I, Theuns, D.A.M.J, ten Cate, F.J, Nemes, A, Caliskan, K.C, Balk, A.H.M.M, … Geleijnse, M.L. (2007). Predictors of Cardiac Events After Cardiac Resynchronization Therapy With Tissue Doppler-Derived Parameters. Journal of Cardiac Failure, 13(10), 805–811. doi:10.1016/j.cardfail.2007.07.010