Transcatheter mitral valve implantation for inoperable severely calcified native mitral valve disease: A systematic review.
Catheter Cardiovasc Interv
; 87(3): 540-8, 2016 Feb 15.
Article
em En
| MEDLINE
| ID: mdl-26577250
ABSTRACT
BACKGROUND:
Transcatheter mitral valve implantation (TMVI) for severely calcified native mitral valve disease recently emerged as a treatment option in patients deemed inoperable by conventional techniques. Yet no systematic appraisal currently exists characterizing this novel treatment paradigm.METHODS:
A systematic literature review summarizing the clinical, anatomical, peri- and post-procedural characteristics underscoring the technical feasibility of this procedure was performed.RESULTS:
Nine publications describing 11 patients [mean age 68 ± 10 years, 82% female, 82% severe mitral stenosis (MS), 18% severe mitral regurgitation (MR)] were identified. Mean STS score, trans-mitral gradient and effective orifice area were 10.5 ± 4.6%, 12 ± 2.4 mm Hg and 0.93 ± 0.06 cm(2) respectively. All patients had severe, circumferential mitral annular calcification on imaging. Dedicated balloon-expanding transcatheter aortic valves were used in 10/11 cases, with 8/11 cases involving a true percutaneous approach with peri-procedural 3D trans-esophageal echocardiographic guidance; 3/11 cases involved an open left atrial approach. Following initial balloon inflation and valve deployment, procedural success rate was 73%, without residual paravalvular leaks (PVL). Successful immediate re-deployment of a 2nd valve was needed in 2 instances following significant PVL detection. Residual trans-valvular gradients ranged from 3 to 7 mm Hg, with no patient demonstrating >grade 2 MR. All patients survived the procedure, with 2 reported deaths on days 10- and 41 post-TMVI being non-cardiac-related. Mid-term clinical follow-up, reported in 8 patients, revealed 6 patients to be alive at 3-months with much improved functional status.CONCLUSIONS:
TMVI for native severely calcified mitral valve disease appears technically feasible with acceptable initial acute and mid-term hemodynamic and clinical outcomes. The outcomes of an ongoing, dedicated global Sapien TMVI registry will shed further light on this evolving treatment paradigm.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Calcinose
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Cateterismo Cardíaco
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Implante de Prótese de Valva Cardíaca
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Valva Mitral
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Insuficiência da Valva Mitral
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Estenose da Valva Mitral
Tipo de estudo:
Guideline
/
Prognostic_studies
/
Systematic_reviews
Limite:
Aged
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Female
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Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Catheter Cardiovasc Interv
Assunto da revista:
CARDIOLOGIA
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Canadá