Current state of total artificial heart therapy and introduction of the most important total artificial heart systems

2019 ◽  
Vol 64 (3) ◽  
pp. 247-250
Author(s):  
Sotirios Spiliopoulos ◽  
Vera Hergesell ◽  
Andrae Wasler ◽  
Otto Dapunt

AbstractDue to the declining instances of organ donation, total artificial heart (TAH) therapy is of increasing importance for the management of end-stage biventricular heart failure. We introduce the currently most important established and novel TAH systems (SynCardia, CARMAT, ReinHeart, BiVACOR), report clinical outcomes and discuss technical requirements for the successful implementation of TAH therapy as an alternative to cardiac transplantation.

2019 ◽  
Vol 21 (1) ◽  
pp. 85-110 ◽  
Author(s):  
Eleonora Dal Sasso ◽  
Andrea Bagno ◽  
Silvia T.G. Scuri ◽  
Gino Gerosa ◽  
Laura Iop

There are limited therapeutic options for final treatment of end-stage heart failure. Among them, implantation of a total artificial heart (TAH) is an acceptable strategy when suitable donors are not available. TAH development began in the 1930s, followed by a dramatic evolution of the actuation mechanisms operating the mechanical pumps. Nevertheless, the performance of TAHs has not yet been optimized, mainly because of the low biocompatibility of the blood-contacting surfaces. Low hemocompatibility, calcification, and sensitivity to infections seriously affect the success of TAHs. These unsolved issues have led to the withdrawal of many prototypes during preclinical phases of testing. This review offers a comprehensive analysis of the pathophysiological events that may occur in the materials that compose TAHs developed to date. In addition, this review illustrates bioengineering strategies to prevent these events and describes the most significant steps toward the achievement of a fully biocompatible TAH.


2014 ◽  
Vol 46 (6) ◽  
pp. 935-936 ◽  
Author(s):  
R. Koerfer ◽  
S. Spiliopoulos ◽  
T. Finocchiaro ◽  
D. Guersoy ◽  
G. Tenderich ◽  
...  

1989 ◽  
Vol 35 (3) ◽  
pp. 229-230 ◽  
Author(s):  
KEVIN D. MURRAY ◽  
P. DAVID MYEROWITZ ◽  
KIM M. WATSON ◽  
PATTY A. LOWE ◽  
LAURI K. KALANGES ◽  
...  

1989 ◽  
Vol 35 (3) ◽  
pp. 229-230
Author(s):  
KEVIN D. MURRAY ◽  
P. DAVID MYEROWITZ ◽  
KIM M. WATSON ◽  
PATTY A. LOWE ◽  
LAURI K. KALANGES ◽  
...  

2013 ◽  
Vol 62 (18) ◽  
pp. C45
Author(s):  
Serkan Ertugay ◽  
Özlem Balcıoğlu ◽  
Ayşen Yaprak Engin ◽  
Emrah Oğuz ◽  
Çağatay Engin ◽  
...  

2018 ◽  
Vol 37 (1) ◽  
pp. 33-37 ◽  
Author(s):  
Christian Latrémouille ◽  
Alain Carpentier ◽  
Pascal Leprince ◽  
Jean-Christian Roussel ◽  
Bernard Cholley ◽  
...  

2017 ◽  
Vol 39 (20) ◽  
pp. 1794-1798 ◽  
Author(s):  
Mattia Arrigo ◽  
Nicolas Vodovar ◽  
Hélène Nougué ◽  
Malha Sadoune ◽  
Chris J Pemberton ◽  
...  

Abstract Aims Heart failure (HF) is accompanied by major neuroendocrine changes including the activation of the natriuretic peptide (NP) pathway. Using the unique model of patients undergoing implantation of the CARMAT total artificial heart and investigating regional differences in soluble neprilysin (sNEP) in patients with reduced or preserved systolic function, we studied the regulation of the NP pathway in HF. Methods and results Venous blood samples from two patients undergoing replacement of the failing ventricles with a total artificial heart were collected before implantation and weekly thereafter until post-operative week 6. The ventricular removal was associated with an immediate drop in circulating NPs, a nearly total disappearance of circulating glycosylated proBNP and furin activity and a marked decrease in sNEP. From post-operative week 1 onwards, NP concentrations remained overall unchanged. In contrast, partial recoveries in glycosylated proBNP, furin activity, and sNEP were observed. Furthermore, while in patients with preserved systolic function (n = 6), sNEP concentrations in the coronary sinus and systemic vessels were similar (all P > 0.05), in patients with reduced left-ventricular systolic function, sNEP concentration, and activity were ∼three-fold higher in coronary sinus compared to systemic vessels (n = 21, all P < 0.0001), while the trans-pulmonary gradient was neutral (n = 5, P = 1.0). Conclusion The heart plays a pivotal role as a regulator of the endocrine response in systolic dysfunction, not only by directly releasing NPs but also by contributing to circulating sNEP, which in turn determines the bioavailability of other numerous vasoactive peptides.


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