Hello. My 57 year old husband became ill 4 years ago, cytomeglavirus. After 6 weeks in the hospital it left him with congestive heart failure. There are concerns now that it may be progressing and many tests are being run. He has an internal defibrillator, but an acquaintance, a cardiac nurse, mentioned a VAD, a device that could be beneficial. Are you able to elaborate on this? Thank you.