Association of chronotropic incompetence with echocardiographic ischemia and prognosis
Michael S. Lauer, MD, FACC*  ,
Rajendra Mehta, MD*,
Fredric J. Pashkow, MD, FACC*,
Peter M. Okin, MD, FACC ,
Kamthorn Lee, MD* and
Thomas H. Marwick, MD, PhD, FACC*
* Department of Cardiology, Cleveland Clinic Foundation, Cleveland, Ohio, USA
George M. and Linda H. Kaufman Center for Heart Failure, Cleveland Clinic Foundation, Cleveland, Ohio, USA
Department of Cardiology, the New York Hospital-Cornell Medical Center, New York, New York, USA
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Figure 1 Kaplan–Meier plot showing event-free survival according to ability to reach 85% of the age-predicted maximum heart rate.
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Figure 2 Kaplan–Meier plot showing event-free survival according to chronotropic index. CRI = chronotropic index.
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Figure 3 Kaplan–Meier plot showing event-free survival as a function of ability to reach 85% of the age-predicted maximum heart rate and the presence or absence of echocardiographic myocardial ischemia.
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Figure 4 Kaplan–Meier plot showing event-free survival as a function of chronotropic index and the presence or absence of echocardiographic myocardial ischemia. CRI = chronotropic index.
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