The incidence of internal bleeding was higher in the most commonly implanted heart device than in an earlier model, according to two studies at Henry Ford Hospital in Detroit. The HeartMate II, a left ventricular assist device (LVAD) is a continuous-flow mechanical pump connected to the patient's heart that takes over the pumping of the weakened heart's left ventricle. "Although there were more instances of bleeding in the skull and gastrointestinal track with the HeartMate II, as opposed to the earlier model, there was no increase in mortality," says lead author Jeffrey A. Morgan, M.D... 
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