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The Society of Thoracic Surgeons Intermacs 2019 Annual Report: The Changing Landscape of Devices and Indications.
The Society of Thoracic Surgeons Intermacs 2019 Annual Report: The Changing Landscape of Devices and Indications. The Annals of thoracic surgery Teuteberg, J. J., Cleveland, J. C., Cowger, J., Higgins, R. S., Goldstein, D. J., Keebler, M., Kirklin, J. K., Myers, S. L., Salerno, C. T., Stehlik, J., Fernandez, F., Badhwar, V., Pagani, F. D., Atluri, P. 2020; 109 (3): 649–60Abstract
BACKGROUND: The field of mechanical circulatory support has been impacted by the approval of new continuous-flow left ventricular assist devices (LVADs) and changes to the United States heart allocation system.METHODS: Primary isolated continuous-flow LVAD implants in The Society of Thoracic Surgeons Intermacs registry from January 2014 through September 2019 were evaluated. Survival and freedom from major adverse events were compared between axial-flow, centrifugal-flow with hybrid levitation (CF-HL), and centrifugal-flow with full magnetic levitation (CF-FML) devices.RESULTS: Of 2603 devices implanted in 2014, 1824 (70.1%) were axial flow and 1213 (46.6%) were destination therapy (DT); through September 2019, 1752 devices were implanted, but only 37 (2.1%) were axial flow and 1230 (70.2%) were DT. Implants were performed in 13,016 patients between 2014 and 2018. Patients receiving implants in 2017-2018 compared with 2014-2016 were more likely to be at Intermacs profile 1 (17.1% vs 14.3%, P < .001) and to have preimplant temporary mechanical circulatory support (34.8% vs 29.3%, P < .001). Overall survival and freedom from major adverse events were higher with CF-FML devices. In multivariable analysis ofsurvival between CF-HL and CF-FML, device type wasnot a significant early hazard, but the use of CF-HL devices had a late hazard ratio for death of 3.01 (P<.001).CONCLUSIONS: Over the past 5 years, centrifugal-flow LVADs have become the dominant technology and DT the most common implant strategy. While outcomes with CF-FML devices are promising, comparisons with other devices from nonrandomized registry studies should be made with caution.
View details for DOI 10.1016/j.athoracsur.2019.12.005
View details for PubMedID 32115073