Use of cardiopulmonary exercise testing with hemodynamic monitoring in the prognostic assessment of ambulatory patients with chronic heart failure
Marco Metra, MD*,
Pompilio Faggiano, MD ,
Antonio DAloia, MD*,
Savina Nodari, MD*,
Anna Gualeni, MD*,
Domenica Raccagni, MD* and
Livio Dei Cas, MD*
* Cattedra di Cardiologia, Universitá di Brescia, Brescia, Italy
Divisione di Cardiologia, Ospedale Fatebenefratelli, Brescia, Italy

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Figure 1 Cumulative survival curves for the patients dichotomized on the basis of the median values of serum sodium (Na+) concentration, peak oxygen consumption (VO2), left ventricular ejection fraction (LVEF), resting supine pulmonary wedge pressure (PWP) and peak exercise left ventricular stroke work index (SWI).
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Figure 2 Cumulative survival curves for patients dichotomized by median values of both peak exercise left ventricular stroke work index (ex SWI) and serum sodium (Na+) (top) and both peak exercise left ventricular stroke work index (ex SWI) and peak oxygen consumption (pVO2) (bottom).
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Figure 3 Cumulative survival curves for patients with a normal and reduced cardiac output response to exercise (ex).
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