Heart failure & cardiomyopathies

Identifying Patients at Risk: Multi-Centre Comparison of HeartMate 3 and HeartWare Left Ventricular Assist Devices

ESC Heart FailPublished Retrospective cohort study

Main finding · SurvivalResult — go to the resultHazard ratio 1.46 95% CI 1.14–1.85

Authors' conclusion

HM3 patients have a significantly better survival and a lower incidence of ischaemic strokes and pump thrombosis than HVAD patients. This survival difference persisted after 2 years of implantation.

Study context

Population
Patients with LV assist devices at centres implanting both HVAD and HM3458 matched
Participants
1,021 patients
Exposure
HM3 vs HVAD
Outcome
Survival
Methodological detailsmulticentre, international, propensity-score matched
  • Multicentre
  • International
  • Propensity-score matched

Main finding

As reported in the abstract

median follow-up 23 months

Hazard ratio

1.46

95% CI 1.14–1.85

P < 0.01

HVADvs HM3
HR 1.46 (95% CI 1.14–1.85); P < 0.01

Observational data: associations, not effects.

Further findings

OutcomeP value
Conditional survival >2 years (landmark analysis) · >2 years after implantationSignificant differenceP = 0.03

Pre-operative variable × device type interactions

None of the pre-operative variable interactions were significant

Safety

OutcomeP value
Pump thrombosisLess with HM3P < 0.01
Ischaemic strokeLess with HM3P < 0.01

Haemorrhagic stroke, right HF, driveline infection, major bleeding

No difference

Original publication

Identifying Patients at Risk: Multi-Centre Comparison of HeartMate 3 and HeartWare Left Ventricular Assist Devices. ESC Heart Fail. Published 16 February 2023. doi:10.1002/ehf2.14308

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