This review summarizes the physiological changes, diagnostic tools, and training control options for managing physical capacity in patients with left ventricular assist devices.
Persistent exercise intolerance post-LVAD warrants cautious expectations in counseling; leaves open mechanisms and targeted interventions.
Over time left ventricular assist devices (LVAD) have become an alternative to heart transplantation because of enormous technical development and miniaturization. Most patients present a significant improvement in clinical conditions and exercise capacity. Nevertheless, exercise tolerance remains markedly limited even after LVAD implantation compared to a control group. The complex physiological and hemodynamic changes in LVAD patients, both at rest and during exercise, are not yet understood, or at least not completely.It is the aim of the present paper to describe the current state of scientific knowledge. Furthermore, the spectrum of diagnostic tools, including the noninvasive inert gas rebreathing method for measurement of cardiac output and associate parameters, are discussed. Options for training control in this special patient group are presented.
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Reiss et al. (2016) studied this question.
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