Usefulness of spatial dispersion of QRS duration in predicting mortality in patients with mild to moderate chronic heart failure |
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Authors: | Yamada Takahisa Shimonagata Tsuyoshi Misaki Naoyuki Asai Mitsutoshi Makino Nobuhiko Kioka Hidetaka Tamaki Shunsuke Fukunami Masatake |
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Affiliation: | Division of Cardiology, Osaka General Medical Center, Osaka, Japan. takaymda@nike.eonet.ne.jp |
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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. |
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