Abstract
ABSTRACTAdvanced Heart Failure (AHF) is a complex syndrome that affects the physiology of the heart to maintain efficient blood circulation resulting in multiorgan failure and, eventually, death. Left Ventricular Assist Devices (LVADs) have become the cornerstone therapy for AHF patients, both as a bridge to transplantation and as a decisive therapy. Recently the results of the MOMENTUM 3 Trial were published. The trial compared HeartMate 3 LVAD with HeartMate II LVAD in a randomized trial in The Multicenter Study of MagLev Technology in Patients Undergoing Mechanical Circulatory Support Therapy with HeartMate 3 (MOMENTUM 3). Of 366 patients, 190 were assigned to the centrifugal-flow pump group (HeartMate 3) and 176 to the axial-flow (HeartMate II) pump group. In the intention-to-treat population, the primary end point occurred in 151 patients (79.5%) in the centrifugal-flow pump group, as compared with 106 (60.2%) in the axial-flow pump group (P < 0.001 for noninferiority). Reoperation for pump malfunction was less frequent in the centrifugal-flow pump group than in the axial-flow pump group (P < 0.001).The results of the MOMENTUM 3 Trial are a big achievement in the cardiovascular world. Any improvement in LVADs that reduces the risk of stroke, perhaps the most feared complication of these devices, would be meaningful. Besides, given the observed lower rate of pump thrombosis and reoperation for pump malfunction, it already seems likely that the HeartMate 3 will supplant the HeartMate II in clinical practice. In addition, the risks that are associated with reoperation undoubtedly counterbalanced any unintentional bias in performing that intervention.
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