ArticleClinical transplantation2025
Tricuspid Regurgitation after Orthotopic Heart Transplantation: Trajectories and Association With Mortality.
Article in Clinical transplantation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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10 authors.
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Abstract
backgroundTricuspid regurgitation (TR) is common immediately after orthotopic heart transplantation (OHT), though the expected outcomes of TR over time remain undefined. In this study, we examined the natural trajectory of TR in the first 120 days post-transplantation. We observed the clinical phenotypes of trajectories of TR after OHT, and assessed trajectory correlation with 1-year mortality and degree of right ventricular (RV) dysfunction.
methodsAll patients who underwent OHT at a single institution from January 2009 to July 2019 were included, unless death occurred during the index hospitalization. TR and RV dysfunction on follow-up transthoracic echocardiograms were tracked on 4-point scales and latent-class mixed modeling (LCMM) identified classes of TR trajectories. Fisher's exact test was used to compare 1-year mortalities between classes.
resultsBased on LCMM, four distinct classes of TR trajectories emerged, characterized as sustained (n = 40), variable (n = 172), stable (n = 175), and recovered (n = 189) TR. Significant differences in mortality rates were found amongst classes at 10.0%, 8.1%, 4.0%, and 2.6%, respectively (p = 0.025). The degree of RV dysfunction mirrored TR severity in all subsets except the sustained TR group.
conclusionsThe trajectory of TR in the first 120 days post-OHT is associated with 1-year mortality. In many subsets, there is a close association with TR grade and RV function improvement. However, in the sustained TR group, RV function improved without subsequent improvement in TR severity. These findings could identify patients with higher mortality risk for whom more frequent follow-up or intervention is warranted.
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