A fully magnetically levitated left ventricular assist device - Final report

  • M. R. Mehra
  • , N. Uriel
  • , Y. Naka
  • , J. C. Cleveland
  • , M. Yuzefpolskaya
  • , C. T. Salerno
  • , M. N. Walsh
  • , C. A. Milano
  • , C. B. Patel
  • , S. W. Hutchins
  • , J. Ransom
  • , G. A. Ewald
  • , A. Itoh
  • , N. Y. Raval
  • , S. C. Silvestry
  • , R. Cogswell
  • , R. John
  • , A. Bhimaraj
  • , B. A. Bruckner
  • , B. D. Lowes
  • J. Y. Um, V. Jeevanandam, G. Sayer, A. A. Mangi, E. J. Molina, F. Sheikh, K. Aaronson, F. D. Pagani, W. G. Cotts, A. J. Tatooles, A. Babu, D. Chomsky, J. N. Katz, P. B. Tessmann, D. Dean, A. Krishnamoorthy, J. Chuang, I. Topuria, P. Sood, D. J. Goldstein

Research output: Contribution to journalArticlepeer-review

1068 Scopus citations

Abstract

BACKGROUND: In two interim analyses of this trial, patients with advanced heart failure who were treated with a fully magnetically levitated centrifugal-flow left ventricular assist device were less likely to have pump thrombosis or nondisabling stroke than were patients treated with a mechanical-bearing axial-flow left ventricular assist device.

METHODS: We randomly assigned patients with advanced heart failure to receive either the centrifugal-flow pump or the axial-flow pump irrespective of the intended goal of use (bridge to transplantation or destination therapy). The composite primary end point was survival at 2 years free of disabling stroke or reoperation to replace or remove a malfunctioning device. The principal secondary end point was pump replacement at 2 years.

RESULTS: This final analysis included 1028 enrolled patients: 516 in the centrifugal-flow pump group and 512 in the axial-flow pump group. In the analysis of the primary end point, 397 patients (76.9%) in the centrifugal-flow pump group, as compared with 332 (64.8%) in the axial-flow pump group, remained alive and free of disabling stroke or reoperation to replace or remove a malfunctioning device at 2 years (relative risk, 0.84; 95% confidence interval [CI], 0.78 to 0.91; P<0.001 for superiority). Pump replacement was less common in the centrifugal-flow pump group than in the axial-flow pump group (12 patients [2.3%] vs. 57 patients [11.3%]; relative risk, 0.21; 95% CI, 0.11 to 0.38; P<0.001). The numbers of events per patient-year for stroke of any severity, major bleeding, and gastrointestinal hemorrhage were lower in the centrifugal-flow pump group than in the axial-flow pump group.

CONCLUSIONS: Among patients with advanced heart failure, a fully magnetically levitated centrifugal-flow left ventricular assist device was associated with less frequent need for pump replacement than an axial-flow device and was superior with respect to survival free of disabling stroke or reoperation to replace or remove a malfunctioning device. (Funded by Abbott; MOMENTUM 3 ClinicalTrials.gov number, NCT02224755.).

Original languageEnglish (US)
Pages (from-to)1618-1627
Number of pages10
JournalNew England Journal of Medicine
Volume380
Issue number17
DOIs
StatePublished - Apr 25 2019

Bibliographical note

Publisher Copyright:
© 2019 Massachusetts Medical Society.

Keywords

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Disease-Free Survival
  • Female
  • Heart Failure/therapy
  • Heart-Assist Devices/adverse effects
  • Humans
  • Intention to Treat Analysis
  • Kaplan-Meier Estimate
  • Male
  • Middle Aged
  • Prosthesis Design
  • Prosthesis Failure
  • Reoperation/statistics & numerical data
  • Stroke/etiology

PubMed: MeSH publication types

  • Equivalence Trial
  • Research Support, Non-U.S. Gov't
  • Randomized Controlled Trial
  • Journal Article

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