Transcatheter Mitral Valve Replacement for Degenerated Bioprosthetic Valves and Failed Annuloplasty Rings.

Yoon, Sung-Han; Whisenant, Brian K; Bleiziffer, Sabine; Delgado, Victoria; Schofer, Niklas; Eschenbach, Lena; Fujita, Buntaro; Sharma, Rahul; Ancona, Marco; Yzeiraj, Ermela; Cannata, Stefano; Barker, Colin; Davies, James E; Frangieh, Antonio H; Deuschl, Florian; Podlesnikar, Tomaz; Asami, Masahiko; Dhoble, Abhijeet; Chyou, Anthony; Masson, Jean-Bernard; ... (2017). Transcatheter Mitral Valve Replacement for Degenerated Bioprosthetic Valves and Failed Annuloplasty Rings. Journal of the American College of Cardiology, 70(9), pp. 1121-1131. Elsevier 10.1016/j.jacc.2017.07.714

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BACKGROUND Limited data exist regarding transcatheter mitral valve replacement (TMVR) for patients with failed mitral valve replacement and repair. OBJECTIVES This study sought to evaluate the outcomes of TMVR in patients with failed mitral bioprosthetic valves (valve-in-valve [ViV]) and annuloplasty rings (valve-in-ring [ViR]). METHODS From the TMVR multicenter registry, procedural and clinical outcomes of mitral ViV and ViR were compared according to Mitral Valve Academic Research Consortium criteria. RESULTS A total of 248 patients with mean Society of Thoracic Surgeons score of 8.9 ± 6.8% underwent TMVR. Transseptal access and the balloon-expandable valve were used in 33.1% and 89.9%, respectively. Compared with 176 patients undergoing ViV, 72 patients undergoing ViR had lower left ventricular ejection fraction (45.6 ± 17.4% vs. 55.3 ± 11.1%; p < 0.001). Overall technical and device success rates were acceptable, at 92.3% and 85.5%, respectively. However, compared with the ViV group, the ViR group had lower technical success (83.3% vs. 96.0%; p = 0.001) due to more frequent second valve implantation (11.1% vs. 2.8%; p = 0.008), and lower device success (76.4% vs. 89.2%; p = 0.009) due to more frequent reintervention (16.7% vs. 7.4%; p = 0.03). Mean mitral valve gradients were similar between groups (6.4 ± 2.3 mm Hg vs. 5.8 ± 2.7 mm Hg; p = 0.17), whereas the ViR group had more frequent post-procedural mitral regurgitation moderate or higher (19.4% vs. 6.8%; p = 0.003). Furthermore, the ViR group had more frequent life-threatening bleeding (8.3% vs. 2.3%; p = 0.03), acute kidney injury (11.1% vs. 4.0%; p = 0.03), and subsequent lower procedural success (58.3% vs. 79.5%; p = 0.001). The 1-year all-cause mortality rate was significantly higher in the ViR group compared with the ViV group (28.7% vs. 12.6%; log-rank test, p = 0.01). On multivariable analysis, failed annuloplasty ring was independently associated with all-cause mortality (hazard ratio: 2.70; 95% confidence interval: 1.34 to 5.43; p = 0.005). CONCLUSIONS The TMVR procedure provided acceptable outcomes in high-risk patients with degenerated bioprostheses or failed annuloplasty rings, but mitral ViR was associated with higher rates of procedural complications and mid-term mortality compared with mitral ViV.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Cardiovascular Disorders (DHGE) > Clinic of Cardiology

UniBE Contributor:

Asami, Masahiko; Windecker, Stephan and Pilgrim, Thomas

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0735-1097

Publisher:

Elsevier

Language:

English

Submitter:

Nadia Biscozzo

Date Deposited:

12 Feb 2018 08:48

Last Modified:

12 Feb 2018 08:48

Publisher DOI:

10.1016/j.jacc.2017.07.714

PubMed ID:

28838360

Uncontrolled Keywords:

annuloplasty ring degenerated bioprostheses mitral valve transcatheter valve implantation

BORIS DOI:

10.7892/boris.111077

URI:

https://boris.unibe.ch/id/eprint/111077

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