Ventricular assist devices (VAD) are a mechanical circulatory support device, which is providing an effective therapy for a significant number of patients with advanced heart failure. There are mostly left VADs, although right VADs are also implanted.
- inflow cannulas
- electrically supplied pump
- outflow cannula
- external controller
The patient’s cardiac function and the speed settings of the VAD determine the amount of blood flow that is pumped by this device.
- bridge to transplant: VADs have considerably improved the care of patients awaiting heart transplantation
- destination therapy: patients implanted as “destination therapy” will remain on the VAD for the rest of their lives
- bridge to recovery: temporary VAD provides support for a few days or weeks
- perioperative hemorrhage
- air embolism
- right ventricular failure after left VAD implantation
- device malfunction/failure
- pump thrombosis
- aortic regurgitation
Treatment and prognosis
As long as patient use this device, LVAD function, patient perfusion, and mean arterial pressure are being assessed and anticoagulation (warfarin) and antiplatelet therapy have to be used.
- 1.Lech Paluszkiewicz, Tomasz Kukulski, Michał Zembala, Jan Gummert, Michiel Morshuis. The role of long-term mechanical circulatory support in the treatment of end-stage heart failure.Kardiologia Polska 2019; 77, 3: 331–340; DOI: 10.5603/KP.a2019.0027 ISSN 0022–9032
- 2. Gedela M, Gohar A, Jonsson O. A Brief Review of Left Ventricular Assist Devices and Their Management. (2019) South Dakota medicine : the journal of the South Dakota State Medical Association. 72 (1): 19-26. Pubmed