Simultaneous ramp right heart catheterization and echocardiography in a ReliantHeart left ventricular assist device.

Content Provider	Europe PMC
Author	Banerjee, Dipanjan Dutt, Debleena Duclos, Sebastien Sallam, Karim Wheeler, Matthew Ha, Richard
Copyright Year	2016
Abstract	Many clinicians caring for patients with continuous flow left ventricular assist devices (CF-LVAD) use ramp right heart catheterization (RHC) studies to optimize pump speed and also to troubleshoot CF-LVAD malfunction. An investigational device, the ReliantHeart Heart Assist 5 (Houston, TX), provides the added benefit of an ultrasonic flow probe on the outflow graft that directly measures flow through the CF-LVAD. We performed a simultaneous ramp RHC and echocardiogram on a patient who received the above CF-LVAD to optimize pump parameters and investigate elevated flow through the CF-LVAD as measured by the flow probe. We found that the patient’s hemodynamics were optimized at their baseline pump speed, and that the measured cardiac output via the Fick principle was lower than that measured by the flow probe. Right heart catheterization may be useful to investigate discrepancies between flow measured by a CF-LVAD and a patient’s clinical presentation, particularly in investigational devices where little clinical experience exists. More data is needed to elucidate the correlation between the flow measured by an ultrasonic probe and cardiac output as measured by RHC.
Related Links	https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC5253195&blobtype=pdf
Journal	World Journal of Cardiology [World J Cardiol]
Volume Number	9
DOI	10.4330/wjc.v9.i1.55
PubMed Central reference number	PMC5253195
Issue Number	1
PubMed reference number	28163837
e-ISSN	19498462
Language	English
Publisher	Baishideng Publishing Group Inc
Publisher Date	2017-01-01
Access Restriction	Open
Rights License	Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/ ©The Author(s) 2016. Published by Baishideng Publishing Group Inc. All rights reserved.
Subject Keyword	Left ventricular assist devices Right heart catheterization Ramp study Flow estimation
Content Type	Text
Resource Type	Article
Subject	Cardiology and Cardiovascular Medicine