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J Heart Lung Transplant. 2012 Feb;31(2):117-26. doi: 10.1016/j.healun.2011.12.001.

The Fourth INTERMACS Annual Report: 4,000 implants and counting.

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Division of Cardiovascular, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA.


The Fourth Annual Report of the Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS) summarizes and analyzes the first 5 years of patient and data collection. With more than 4,000 patients entered into the database, the evolution of pump technology, strategy at implant, and pre-implant patient profiles are chronicled. A risk factor analysis of the entire adult primary implant population is provided, and the recent composition of patient profiles is examined. Current actuarial survival with continuous-flow pumps exceeds 80% at 1 year and 70% at 2 years.

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