Single centre experience in transcatheter mitral valve implantation: valve in valve, valve in ring and valve in MAC

Abstract Background Mitral valve replacement/repeair procedures increase year. Redo procedure and severely calcified mitral ring are risk factors for high mortality. Transmitral implantation (TMVI) represents a less invasive in high-risk population, but still with We seek to evaluate one single center experience the safety efficacy patients undergoing transeptal TMVI degenerated bioprostheses or surgical candidates heavily anulus calcification (MAC). Methods One-single centre, retrospective observational analysis, included patientes from 2012 2021 treated position. Valve-in-valve (ViV), (ViR) MAC were included. Periprocedural, in-hospital complications documented analyzed. Results Seventy-nine ViV was done 59 patients, ViR 8 ViMAC 10 Valve native anatomy 2 patients. Baseline, procedural characteristics reported on table. No significant statistical difference observed baseline characteristics. STS Score 7.77+5.37 5.77+3.02 8.70+4.47 6.29+0.55 (p=0.634). Procedural success 96.6% of ViV, 87.5% ViR, 80% 100% (p=0.124). related death only patient. Conversion surgery embolisation (1.7%) (12.5%) patient, respectively. In-hospital 5.1% 12.5% 20% none Conclusion is challenging feasible safe. Carefully planning heart team approach experiences centers important address this issue reduce as much possible any complication. Funding Acknowledgement Type funding sources: None.