Cardiohepatic Syndrome Is Associated With Poor Prognosis in Patients Undergoing Tricuspid Transcatheter Edge-to-Edge Valve Repair

ObjectivesThe aim of this study was to evaluate the prevalence and prognostic implications of cardiohepatic syndrome (CHS) in patients with tricuspid regurgitation (TR) treated with tricuspid transcatheter edge-to-edge valve repair (T-TEER).BackgroundThe role of CHS in patients undergoing T-TEER for severe TR has not been studied.MethodsThis study included patients who underwent T-TEER for TR between 2016 and 2020 at 2 high-volume academic centers. CHS was defined as elevation of at least 2 of 3 cholestatic hepatic enzymes. The impact of CHS on 1-year all-cause mortality and clinical outcomes after T-TEER was investigated.ResultsT-TEER reduced TR severity to ≤2+ in 257 of 305 included patients (86.2%). CHS was present in 45.2% of patients and was associated with a higher rate of mortality and of first hospitalization for heart failure (HHF) (CHS vs no CHS: estimated 1-year mortality, 34.0% vs 15.9% [P < 0.01]; HHF, 23.0% vs 12.2% [P = 0.01]). CHS was identified as an independent predictor of 1-year all-cause mortality (HR: 1.86; 95% CI: 1.10-3.14; P < 0.05). Irrespective of CHS, T-TEER improved New York Heart Association functional class and 6-minute walk distance in the majority of patients. In patients with impaired baseline hepatic function, laboratory liver parameters improved after T-TEER.ConclusionsCHS is a strong predictor of mortality and HHF after T-TEER and should be evaluated in the process of procedural decision making for T-TEER. Nevertheless, T-TEER is associated with relevant symptomatic alleviation irrespective of CHS.