Expert Rev Med Devices. 2019 Nov 28.
Introduction: The development of ventricular assist devices (VADs) have enabled myocardial recovery and improved patient survival until heart transplantation. However, device options remain limited for children and lag in development.Areas covered: This review focuses on the evolution of pediatric VADs in becoming an accepted treatment option in advanced heart failure, discusses the classification of VADs available for children, i.e. types of pumps and duration of support, and defines implantation indications and explantation criteria with attendant complications, discussing its long-term outcome. Furthermore, we emphasize key considerations in the application of these devices in infants, children and adolescents.Expert opinion: Increasing use of VADs has facilitated a leading edge in management of advanced heart failure either as a bridge to transplantation or as a bridge to myocardial recovery. In newborns and small children, the EXCOR Pediatric VAD remains the only reliable option. In some patients ventricular unloading may lead to complete myocardial recovery. VAD development should be aimed at: (1) smaller, more effective durable system components, (2) an energy supply without risk of infection, (3) minimalization of thrombus formation by optimal interior pump design and new antithrombotic medications (4) pulse modulation of continuous flow (5) adaptation of pump activity according to demand (6) a safe automatic system monitoring with telemonitoring (7) a system with simple and safe handling for the patients/parents. There may be future need for pumps that are fully implantable, suitable for single ventricle physiology, such as the right ventricle.
Keywords: anticoagulation; cardiomyopathy; congenital heart diseases; heart failure; heart transplantation; myocardial recovery; myocarditis; thrombosis; ventricular assist devices