Waitlist and transplant outcomes in heart transplant candidates bridged with temporary endovascular right ventricular assist devices

Kwon, Jennie H.; Skidmore, Savannah H.; Bhandari, Krishna; Carnicelli, Anthony P.; Yourshaw, Jeffrey P.; Shorbaji, Khaled; Kilic, Arman

doi:10.1016/j.healun.2023.11.001

The Journal of Heart and Lung Transplantation

2024

DOI: 10.1016/j.healun.2023.11.001

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Waitlist and transplant outcomes in heart transplant candidates bridged with temporary endovascular right ventricular assist devices

Jennie H. Kwon,

Savannah H. Skidmore,

Krishna Bhandari

et al.

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2024

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Vascular function in patients with advanced heart failure and continuous-flow or pulsatile ventricular assist devices

Rossi,

Nebunu,

Nägele

et al. 2024

Clin Res Cardiol

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Background A significant proportion of patients with heart failure (HF) progress to an advanced stage, which is associated with a substantial increase in morbidity and mortality. These patients may be eligible for advanced treatment strategies such as mechanical circulatory support with ventricular assist devices (VAD). Vascular dysfunction is a hallmark of heart failure pathophysiology and prognosis. However, whether and to what degree the hemodynamic benefits of VADs influence vascular function remain unknown. Methods and results In this study, we evaluated endothelial vascular function with flow-mediated vasodilatation (FMD) and with flicker-light induced retinal vasodilatation (FID). 34 patients with a VAD (age 58 ± 10 years, 85% male, 74% ischemic heart disease, 26 continuous-flow (CF)-LVAD, and 8 pulsatile biventricular (bi)-VAD) were compared to 34 propensity-matched patients (mean age 62 ± 9 years, 68% male, 59% ischemic heart disease) with advanced HF (AdvHF). Endothelial function of larger arteries (FMD) was significantly better in patients after VAD implantation compared to matched AdvHF patients (7.2 ± 4.6% vs. 5.0 ± 3.2%, p = 0.03), whereas microvascular arteriolar function (FIDart) did not differ (0.99 ± 1.43% vs. 1.1 ± 1.7%, p = 0.78). The arterio-venous ratio (AVR) was higher in the VAD group (0.90 ± 0.06 vs 0.85 ± 0.09, p = 0.01), reflecting wider retinal arteriolar and narrower venular diameters. There was no difference in vascular function between patients with CF-LVAD and pulsatile Bi-VAD. Conclusion In patients with advanced heart failure, VAD implantation was associated with better endothelial function at the level of large arteries, but not in the microcirculation.

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Vascular function in patients with advanced heart failure and continuous-flow or pulsatile ventricular assist devices

Rossi,

Nebunu,

Nägele

et al. 2024

Clin Res Cardiol

View full text Add to dashboard Cite

show abstract

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Waitlist and transplant outcomes in heart transplant candidates bridged with temporary endovascular right ventricular assist devices

Cited by 1 publication

References 35 publications

Vascular function in patients with advanced heart failure and continuous-flow or pulsatile ventricular assist devices

Vascular function in patients with advanced heart failure and continuous-flow or pulsatile ventricular assist devices

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