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Karam, Nicole; Braun, Daniel; Mehr, Michael; Orban, Mathias; Stocker, Thomas J.; Deseive, Simon; Orban, Martin; Hagl, Christian; Näbauer, Michael; Massberg, Steffen; Hausleiter, Jörg
JACC. Cardiovascular interventions, 08/2019, Volume: 12, Issue: 15Journal Article
This study sought to determine the impact of transcatheter tricuspid edge-to-edge valve repair (TTVR) of severe tricuspid regurgitation (TR) on kidney and liver functions. TR leads to impairment in renal and hepatic function, which is associated with worse prognosis. TTVR emerged as a treatment option for patients ineligible for cardiac surgery. However, no study has assessed the impact of TTVR on kidney and liver functions. All patients treated with TTVR in our center between March 2016 and June 2018 were included. Kidney and liver functions were compared at baseline, 30 days, and 6 months. Over the study period, 126 patients were treated for TR (59 isolated TTVR and 67 TMTVR). Among them, 110 (87.3%) survived at 6 months. Among survivors, renal function remained stable, including among patients with moderate-to-severe chronic kidney disease (mean glomerular filtration rate 37.5 ml/min/1.73 m2 at baseline vs. 40.1 ml/min/1.73 m2 at 6 months; p = 0.39). Regarding liver function, a significant improvement at 6 months was only observed in the alanine transaminase level in the entire cohort (30.7 U/l vs. 24.9 U/l; p < 0.001). Among patients with abnormal baseline liver function, significant reductions in aspartate transaminase (50.5 U/l to 39.9 U/l; p = 0.02) and bilirubin (1.8 mg/dl to 1.5 mg/dl; p = 0.03) were also observed. TR reduction by TTVR is associated with an improvement in liver function, mainly among patients with abnormal liver function at baseline, whereas kidney function remained stable. Accordingly, TTVR is an attractive option especially for patients presenting with severe TR and liver dysfunctions, who are at even higher surgical risk compared with patients who still have normal organ functions. Display omitted
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