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Two-Year Outcomes with a Magnetically Levitated Cardiac Pump in Heart Failure

In an early analysis of this trial, use of a magnetically levitated centrifugal continuous flow circulatory pump was found to improve clinical outcomes, as compared with a mechanical bearing axial continuous-flow pump, at 6 months in patients with advanced heart failure.

In a randomized trial, scientists compared the centrifugal flow pump with the axial-flow pump in patients with advanced heart failure, irrespective of the intended goal of support.

Of 366 patients, 190 were assigned to the centrifugal-flow pump group and 176 to the axial flow pump group. Reoperation for pump malfunction was less frequent in the centrifugal-flow pump group than in the axial-flow pump group. The rates of death and disabling stroke were similar in the two groups, but the overall rate of stroke was lower in the centrifugal-flow pump group than in the axial flow pump group.

In patients with advanced heart failure, a fully magnetically levitated centrifugal-flow pump was superior to a mechanical-bearing axial-flow pump with regard to survival free of disabling stroke or reoperation to replace or remove a malfunctioning device.

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