4 hours ago The sixth annual report of the Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS) summarizes the first 8 years of patient enrollment. The analysis is based on data from >10,000 patients and updates demographics, survival, adverse events and risk factors. ... Sixth INTERMACS annual report: a 10,000-patient database J ... >> Go To The Portal
The Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS), 1 a National Heart, Lung and Blood Institute (NHLBI)-sponsored database and partnership between NHLBI, the U.S.
Between June 23, 2006 and June 30, 2013, 12,335 patients who received an FDA-approved durable mechanical circulatory support (MCS) device were entered into the INTERMACS database ( Figure 1 ). Of the 158 participating hospitals, data were contributed by 141 centers that had also been approved for destination therapy (DT).
Table 1 lists the current FDA-approved MCS devices used in adult patients. The HeartMate II (Thoratec, Pleasanton, CA) continuous-flow pump was approved for bridge-to-transplant (BTT) therapy in 2008 and for DT in 2010. The HeartWare HVAD (HeartWare International, Inc., Framingham, MA) was approved for BTT indications on November 20, 2012.
The dominance of continuous-flow technology has been evident since 2008, and in the USA includes the HeartMate II axial-flow pump (BTT and DT) and the HeartWare HVAD centrifugal-flow pump (BTT).
PEDIMACS, the pediatric component of INTERMACS, began data collection on September 1, 2012. Prior to that, patients <18 years of age were entered into INTERMACS with pediatric-specific data elements.
Mechanical circulatory support as a DT strategy 2, 3 continues to represent a major proportion of overall implants. Comparing three eras of continuous-flow technology in the USA, the proportion of patients receiving a durable device as DT increased from 14.7% in 2006–2007 to 41.6% in 2011–2013 ( Table 4 ).
Survival for continuous-flow devices through December, 2013 is shown in Figure 8 with the accompanying hazard function. The hazard function shows a rapidly decreasing early phase of risk that merges with a constant phase at about 3 months. We identified a late phase of gradually increasing risk out to 5 years.
The sixth annual report of the Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS) summarizes the first 8 years of patient enrollment. The analysis is based on data from >10,000 patients and updates demographics, survival, adverse events and risk factors.
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