UMEM Educational Pearls

Category: Critical Care

Title: Ventricular Assist Devices

Keywords: VAD, ventricular assist device, hear failure, shock, hemodynamics (PubMed Search)

Posted: 2/28/2012 by Haney Mallemat, MD
Click here to contact Haney Mallemat, MD

Ventricular assist devices (VAD) pump blood from the left, right or both ventricles for patients in severe ventricular failure.

VADs may be placed temporarily (as a bridge to transplant) or permanently in patients who are not transplant candidates (also known as Destination Therapy)

Certain types of VADs continuously pump blood in a non-pulsatile fashion. In these cases, a patient may be perfusing normally without a palpable pulse.

Familiarity with potential VAD complications is important as a patient with a VAD may be presenting to an ED near you. Complications include:

  • Bleeding complications from anticoagulation; all VADs require some form of anticoagulation
  • Infection; a portion of the VAD exits externally and this site can be a portal of entry for skin flora
  • Embolic phenomenon from clots generated within the VAD
  • Infection of the VAD itself, called VAD-itis; this can also lead to sepsis

References

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