Magnitude and Time Course of Changes Induced by Continuous-Flow Left Ventricular Assist Device Unloading in Chronic Heart Failure: Insights into Cardiac Recovery

Wever‐Pinzon, Omar; Kfoury, A.G.; Selzman, Craig H.; Reid, B.B.; Alharethi, Rami; Budge, D.; Gilbert, E.M.; McKellar, Stephen H.; Caine, W.T.; Verma, Divya Ratan; Saïdi, A.; Brunisholz, Kimberly D.; Stehlik, J.; Drakos, Stavros

doi:10.1016/j.healun.2013.01.880

The Journal of Heart and Lung Transplantation

2013

DOI: 10.1016/j.healun.2013.01.880

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Magnitude and Time Course of Changes Induced by Continuous-Flow Left Ventricular Assist Device Unloading in Chronic Heart Failure: Insights into Cardiac Recovery

Omar Wever‐Pinzon¹,

A.G. Kfoury²,

Craig H. Selzman³

et al.

Abstract: Objective-To prospectively investigate the longitudinal effects of continuous-flow left ventricular assist device (LVAD) unloading on myocardial structure and systolic and diastolic function.Background-The magnitude, timeline and sustainability of changes induced by continuousflow LVAD on the structure and function of the failing human heart are unknown.

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Ventricular Assist Devices in Heart Failure: How to Support the Heart but Prevent Atrophy?

Pokorný

Červenka²,

Netuka³

et al. 2014

Physiol Res

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Ventricular assist devices (VAD) have recently established themselves as an irreplaceable therapeutic modality of terminal heart failure. Because of the worldwide shortage of donors, ventricular assist devices play a key role in modern heart failure therapy. Some clinical data have revealed the possibility of cardiac recovery during VAD application. On the other hand, both clinical and experimental studies indicate the risk of the cardiac atrophy development, especially after prolonged mechanical unloading. Little is known about the specific mechanisms governing the unloading-induced cardiac atrophy and about the exact ultrastructural changes in cardiomyocytes, and even less is known about the ways in which possible therapeutical interventions may affect heart atrophy. One aim of this review was to present important aspects of the development of VAD-related cardiac atrophy in humans and we also review the most significant observations linking clinical data and those derived from studies using experimental models. The focus of this article was to review current methods applied to alleviate cardiac atrophy which follows mechanical unloading of the heart. Out of many pharmacological agents studied, only the selective beta2 agonist clenbuterol has been proved to have a significantly beneficial effect on unloading-induced atrophy. Mechanical means of atrophy alleviation also seem to be effective and promising.

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Ventricular Assist Devices in Heart Failure: How to Support the Heart but Prevent Atrophy?

Pokorný

Červenka²,

Netuka³

et al. 2014

Physiol Res

View full text Add to dashboard Cite

show abstract

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Magnitude and Time Course of Changes Induced by Continuous-Flow Left Ventricular Assist Device Unloading in Chronic Heart Failure: Insights into Cardiac Recovery

Cited by 1 publication

References 23 publications

Ventricular Assist Devices in Heart Failure: How to Support the Heart but Prevent Atrophy?

Ventricular Assist Devices in Heart Failure: How to Support the Heart but Prevent Atrophy?

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