Year: 2025
Type: article
Study design: Observational Study
Abstract: BACKGROUND: Cardiac magnetic resonance (CMR) derived hepatic T1-time is associated with outcome. However, the interplay between tricuspid regurgitation (TR), which can cause congestive hepatopathy and liver T1-time is unclear. METHODS: We measured hepatic T1-time in CMR all-comers, who underwent echocardiography within 3 weeks of CMR. Kaplan-Meier estimates and Cox regression models were used to investigate the association between hepatic T1-time, TR severity and a composite endpoint of heart failure hospitalisation and all-cause death. RESULTS: 1029 participants (67 ± 17 y/o, 44% female) had a mean hepatic T1-time of 605 ± 79 ms. Overall, 41% (417) presented with non/trace, 38% (391) with mild, 13% (135) with moderate and 8% (85) with severe/massive/torrential TR. Liver T1-time was significantly associated with TR severity (no/trace: 586 ± 72 ms; mild: 601 ± 74 ms; moderate: 634 ± 84 ms; severe/massive/torrential: 665 ± 83 ms; β = 25.4 ms, [95% CI:19.7-31.2, p < .001]). After adjustment for serum NT-proBNP and right ventricular function in a linear regression model, TR severity remained significantly associated with hepatic T1-time (p < .001). During follow-up (mean 53 ± 36 months) 326 (32%) events occurred. Hepatic T1-time (adj.HR 1.69 [95% CI: 1.49-1.92] per 100 ms increase, p < .001) and TR (adj.HR 1.66 [95% CI: 1.49-1.84], p < .001) were both associated with outcome. Even after adjustment for serum NT-proBNP, cardiac structure and function, age, sex and TR severity, hepatic T1-time remained significantly associated with event-free survival (adj.HR 1.42 [95% CI: 1.20-1.68] per 100 ms increase, p < .001). CONCLUSION: TR exerts a notable influence on hepatic T1-time. Nevertheless, after adjustment for serum NTproBNP, cardiac function and TR severity, hepatic T1-time still independently predicts outcomes. This underscores the importance of hepatic T1-time both as a marker of TR and prognosis.
DOI: 10.1111/eci.70106
Authors: Katharina Mascherbauer, Christina Kronberger, Manuel Gruber, Carolina Donà, Matthias Koschutnik, Varius Dannenberg, Michael Poledniczek, Laura Lunzer, Christian Nitsche, Franz Duca, Gregor Heitzinger, Kseniya Halavina, Dietrich Beitzke, Christian Loewe, Michael Trauner, Philipp Bartko, Julia Mascherbauer, Christian Hengstenberg, Andreas Kammerlander, Elisabeth Waldmann
Language: English
Subfield: Cardiology and Cardiovascular Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: hybrid
Estimated APC paid: $4,100
OpenAlex ID: W4413055759