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J. Cardiovasc. Dev. Dis. 2016, 3(4), 35;

Mechanical Circulatory Support for Advanced Heart Failure: Are We about to Witness a New “Gold Standard”?

Scottish National Advanced Heart Failure Service, Golden Jubilee National Hospital, Glasgow G81 4DY, UK
Biomedical Engineering, University of Strathclyde, Glasgow G4 0NW, UK
Academic Editor: Joel D. Schilling
Received: 14 August 2016 / Revised: 3 December 2016 / Accepted: 6 December 2016 / Published: 12 December 2016
(This article belongs to the Special Issue Heart Failure Pathogenesis and Management)
Full-Text   |   PDF [1612 KB, uploaded 12 December 2016]   |  


The impact of left ventricular assist devices (LVADs) for the treatment of advanced heart failure has played a significant role as a bridge to transplant and more recently as a long-term solution for non-eligible candidates. Continuous flow left ventricular assist devices (CF-LVADs), based on axial and centrifugal design, are currently the most popular devices in view of their smaller size, increased reliability and higher durability compared to pulsatile flow left ventricular assist devices (PF-LVADs). The trend towards their use is increasing. Therefore, it has become mandatory to understand the physics and the mathematics behind their mode of operation for appropriate device selection and simulation set up. For this purpose, this review covers some of these aspects. Although very successful and technologically advanced, they have been associated with complications such as pump thrombosis, haemolysis, aortic regurgitation, gastro-intestinal bleeding and arterio-venous malformations. There is perception that the reduced arterial pulsatility may be responsible for these complications. A flow modulation control approach is currently being investigated in order to generate pulsatility in rotary blood pumps. Thrombus formation remains the most feared complication that can affect clinical outcome. The development of a preoperative strategy aimed at the reduction of complications and patient-device suitability may be appropriate. Patient-specific modelling based on 3D reconstruction from CT-scan combined with computational fluid dynamic studies is an attractive solution in order to identify potential areas of stagnation or challenging anatomy that could be addressed to achieve the desired outcome. The HeartMate II (axial) and the HeartWare HVAD (centrifugal) rotary blood pumps have been now used worldwide with proven outcome. The HeartMate III (centrifugal) is now emerging as the new promising device with encouraging preliminary results. There are now enough pumps on the market: it is time to focus on the complications in order to achieve the full potential and selling-point of this type of technology for the treatment of the increasing heart failure patient population. View Full-Text
Keywords: LVAD; rotary blood pumps; patient-specific modelling LVAD; rotary blood pumps; patient-specific modelling

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Capoccia, M. Mechanical Circulatory Support for Advanced Heart Failure: Are We about to Witness a New “Gold Standard”? J. Cardiovasc. Dev. Dis. 2016, 3, 35.

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