Transcatheter bioprosthesis implantation for the treatment of aortic stenosis: three-year experience.

Abstract

BACKGROUND:

Transcatheter aortic bioprosthesis implantation is a new treatment modality for patients with aortic stenosis who are inoperable or at high surgical risk.

OBJECTIVE:

To report the three-year experience with transcatheter CoreValve® bioprosthesis implantation.

METHODS:

From January 2008 to January 2011, 35 patients with aortic stenosis (33) or aortic valve bioprosthesis dysfunction (two) at high surgical risk underwent transcatheter CoreValve® bioprosthesis implantation.

RESULTS:

The patients' mean age was 81.5 ± 9 years, and 80% had heart failure functional class III or IV. The EuroScore was 18.4 ± 14.3% and the STS risk score was 14.5 ± 11.6%. Successful device implantation was achieved in 34 (97.1%) patients. After the intervention, a reduction in the transvalvular pressure gradient from 84.9 ± 22 to 22.5 ± 9.5 mm Hg was observed, and 87.1% of the patients progressed to functional class I or II. Thirty-day mortality and mortality in the follow-up of 400 ± 298 days were 11.4% and 31.4%, respectively. The occurrence of life-threatening hemorrhagic complications was the only independent predictor of cardiovascular mortality. Stroke occurred in 5.7% of the patients. Permanent pacemaker was required in 32.1% of the patients within the first month after the procedure.

CONCLUSION:

Transcatheter aortic bioprosthesis implantation is a safe and effective procedure to be used in patients with aortic stenosis at high surgical risk. The CoreValve® prosthesis proved to have mid-term efficacy in a three-year follow-up.

• Authors: Fabio Sandoli de Brito Junior, Alexandre Abizaid, Breno O Almeida, Adriano Caixeta, Flávio Tarasoutchi, Eberhard Grube, Marco Perin
• Journal: Arquivos brasileiros de cardiologia (Arq Bras Cardiol) Vol. 99 Issue 2 Pg. 697-705 (Aug 2012) ISSN: 1678-4170 [Electronic] Brazil
• PMID: 22766918 (Publication Type: Journal Article)

Topics

• Aged
• Aged, 80 and over
• Aortic Valve Stenosis (therapy)
• Bioprosthesis
• Cardiac Catheterization (adverse effects, methods)
• Endpoint Determination
• Epidemiologic Methods
• Female
• Heart Valve Prosthesis
• Heart Valve Prosthesis Implantation (adverse effects, methods)
• Humans
• Male
• Middle Aged
• Postoperative Complications
• Treatment Outcome