Why the study?
Does noninvasive assessment of cardiac output during an incremental exercise test improve prognostic evaluation in chronic heart failure patients?
Does noninvasive assessment of cardiac output during an incremental exercise test improve prognostic evaluation in chronic heart failure patients?
The authors propose that noninvasive assessment of cardiac output during incremental exercise testing could become a gold standard for prognostic evaluation in chronic heart failure.
Should not yet change practice in chronic heart failure; hypothesis-generating for noninvasive cardiac output as prognostic gold standard.
Peak oxygen consumption (VO2) and various parameters of cardiopulmonary response to exercise are of important prognostic value in chronic heart failure patients. However, all the available parameters only indirectly reflect left-ventricular dysfunction and hemodynamic adaptation to an increased demand. Noninvasive assessment of cardiac output, especially during an incremental exercise test, would allow the direct measurement of cardiac reserve and may become the gold standard for prognostic evaluation of chronic heart failure patients.
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Cattadori et al. (2010) studied this question.
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