Author/Authors :
Dean Notabartolo، نويسنده , , Dean and Merlino، نويسنده , , John D. Stenger-Smith، نويسنده , , Andrew L. and DeLurgio، نويسنده , , David B. and Vera، نويسنده , , Fernando V. and Easley، نويسنده , , Kirk A. and Martin، نويسنده , , Randolph P. and Leَn، نويسنده , , Angel R.، نويسنده ,
Abstract :
Cardiac resynchronization therapy (CRT) improves symptoms and functional status in heart failure patients; however, current selection criteria need improvement. A novel tissue Doppler imaging parameter, the peak velocity difference (PVD), defined as the greatest difference in time to peak velocity between any of 6 left ventricular regions, may better select responders to CRT. Subjects were divided into 2 groups based on the PVD. Clinical and echocardiographic parameters significantly improved in subjects with dyssynchrony by the baseline PVD and had a better overall response to CRT.
