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Temporal Differences in Outcomes During Long-Term Mechanical Circulatory Support.

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Summary
This summary is machine-generated.

Survival after continuous-flow left ventricular assist device (CF-LVAD) implantation remained consistent over time, despite changes in device technology and patient profiles. However, later implantation periods showed increased risks of pump thrombosis and gastrointestinal bleeding.

Keywords:
Ventricular assist devicescontinuous-flowoutcomestemporal analysis

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Area of Science:

  • Cardiology
  • Medical Devices
  • Clinical Outcomes

Background:

  • Indications for continuous-flow left ventricular assist device (CF-LVAD) implantation have evolved.
  • A multicenter analysis was conducted to assess temporal trends in CF-LVAD outcomes.

Purpose of the Study:

  • To evaluate how outcomes after CF-LVAD implantation have changed over time.
  • To identify factors influencing survival and adverse events in CF-LVAD patients.

Main Methods:

  • Retrospective analysis of 1,064 patients who received CF-LVADs (Heartmate II and Heartware) between 2004 and 2014.
  • Patients were divided into three time periods based on technological advancements.
  • Adjusted survival and multivariable analyses were performed to identify predictors of mortality and adverse events.

Main Results:

  • Device utilization shifted significantly, with increased use of Heartware devices in later periods.
  • Adjusted survival rates were similar across all three time intervals.
  • Age and Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS) profile were independent predictors of mortality.
  • Later periods were associated with a higher risk of pump thrombosis and gastrointestinal bleeding.

Conclusions:

  • Post-implantation survival for CF-LVADs has remained stable despite evolving device types and patient populations.
  • Patients implanted in more recent periods face an elevated risk of pump thrombosis and gastrointestinal bleeding.