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Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
Experience with anatomically orientated devices for transapical aortic valve implantation
M Haensig1, D M Holzhey, L Lehmkuhl
1Department of Cardiac Surgery, Heart Center of the University of Leipzig, Leipzig, Germany. martin.haensig@medizin.uni-leipzig.de
Minerva Cardioangiologica
|February 6, 2013
Summary
Transcatheter aortic valve implantation (TAVI) offers an alternative for high-risk patients. Second-generation devices aim to reduce paravalvular leakage and atrioventricular block by improving anatomical positioning.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
- Biomedical Engineering
Background:
- Transcatheter aortic valve implantation (TAVI) is an evolving procedure for symptomatic aortic valve stenosis in high-risk patients.
- Current TAVI limitations include paravalvular leakage, atrioventricular block, and lack of device rotational control.
- These challenges necessitate advancements in TAVI technology.
Purpose of the Study:
- To review novel second-generation self-expandable nitinol TAVI devices.
- To describe three distinct TAVI concepts utilizing the transapical approach.
- To highlight improvements in device positioning and potential reduction of complications.
Main Methods:
- Focus on early clinical evaluation and commercial approval of new TAVI devices.
- Description of transapical implantation techniques for second-generation devices.
- Analysis of anatomical orientation for improved valve performance.
Main Results:
- Second-generation devices aim for anatomical positioning within the aortic root.
- Potential for reduced paravalvular leak and atrioventricular block.
- Improved physiological valve function and coronary flow are anticipated.
Conclusions:
- Second-generation TAVI devices show promise in addressing current procedural limitations.
- Anatomical positioning may enhance outcomes and reduce complications.
- Further clinical evaluation is ongoing for these advanced TAVI technologies.
