Author/Authors :
Yamada، نويسنده , , Takahisa and Shimonagata، نويسنده , , Tsuyoshi and Misaki، نويسنده , , Naoyuki and Asai، نويسنده , , Mitsutoshi and Makino، نويسنده , , Nobuhiko and Kioka، نويسنده , , Hidetaka and Tamaki، نويسنده , , Shunsuke and Fukunami، نويسنده , , Masatake، نويسنده ,
Abstract :
To prospectively evaluate the prognostic significance of spatial dispersion of QRS duration (S-QRSd) on a signal-averaged electrocardiogram in patients with chronic heart failure (CHF), we studied 114 consecutive stable outpatients with radionuclide left ventricular ejection fraction <40%. Cardiac and sudden deaths were significantly more often observed in patients with than without abnormal S-QRSd. S-QRSd is a powerful prognostic marker of the mortality in patients with mild to moderate CHF.
