Article
Author: Crimi, Gabriele ; Guerin, Patrice ; Fiorelli, Francesca ; Tarantini, Giuseppe ; Giannini, Cristina ; Munafò, Andrea Raffaele ; Oreglia, Jacopo A ; Adamo, Marianna ; Marcelli, Chiara ; Maffeo, Diego ; Arzamendi, Dabit ; Ooms, J F ; Potena, Luciano ; Fürholz, Monika ; Raineri, Claudia ; Estévez-Loureiro, Rodrigo ; Godino, Cosmo ; Van Mieghem, Nicolas M ; Peregrina, Estefanìa Fernàndez ; Pezzola, Elisa ; Le Ruz, Robin ; Taramasso, Maurizio ; Agricola, Eustachio ; Bettari, Luca ; Petronio, A Sonia ; Fam, Neil P ; Montalto, Claudio ; Chizzola, Giuliano ; Maisano, Francesco ; Praz, Fabien ; Vitrella, Giancarlo ; Asgar, Anita ; Compagnone, Miriam ; Gutierrez, Lola ; Saia, Francesco ; Ho, Edwin C ; Tamburino, Corrado ; Pascual, Isaac ; Fraccaro, Chiara ; Colombo, Antonio ; Scotti, Andrea ; Hernàndez, Antonio Portolés ; Metra, Marco ; Rubbio, Antonio Popolo ; Grasso, Carmelo ; Margonato, Alberto
BACKGROUNDIn the first report from the MitraBridge registry, MitraClip as a bridge to heart transplantation (HTx) proved to be at 1-year an effective treatment strategy for 119 patients with advanced heart failure (HF) who were potential candidates for HTx. We aimed to determine if benefits of MitraClip procedure as a bridge-to-transplant persist up to 2-years.METHODSBy the end of the enrollment period, a total of 153 advanced HF patients (median age 59 years, left ventricular ejection fraction 26.9 ± 7.7%) with significant secondary mitral regurgitation, who were potential candidates for HTx and were treated with MitraClip as a bridge-to-transplant strategy, were included in the MitraBridge registry. The primary endpoint was the 2-year composite adverse events rate of all-cause death, first hospitalization for HF, urgent HTx or LVAD implantation.RESULTSProcedural success was achieved in 89.5% of cases. Thirty-day mortality was 0%. At 2-year, Kaplan-Meier estimates of freedom from primary endpoint was 47%. Through 24 months, the annualized rate of HF rehospitalization per patient-year was 44%. After an overall median follow-up time of 26 (9-52) months, elective HTx was successfully performed in 30 cases (21%), 19 patients (13.5%) maintained or obtained the eligibility for transplant, and 32 patients (22.5%) no longer had an indication for HTx because of significant clinical improvement.CONCLUSIONSAfter 2-years of follow-up, the use of MitraClip as a bridge-to-transplant was confirmed as an effective strategy, allowing elective HTx or eligibility for transplant in one third of patients, and no more need for transplantation in 22.5% of cases.