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Related Experiment Video

Updated: May 15, 2026

Improved Registration of 3D CT Angiography with X-ray Fluoroscopy for Image Fusion During Transcatheter Aortic Valve Implantation
06:59

Improved Registration of 3D CT Angiography with X-ray Fluoroscopy for Image Fusion During Transcatheter Aortic Valve Implantation

Published on: June 3, 2018

Transcatheter aortic valve implantation.

Hans Henrik Møller Nielsen1

  • 1Department of Cardiothoracic Surgery, Aarhus University Hospital, Skejby, Brendstrupgårdsvej 100, 8200 Aarhus, Denmark. hhmn@kirurgi.org

Danish Medical Journal
|January 8, 2013
PubMed
Summary

Transcatheter aortic valve implantation (TAVI) offers a less invasive alternative to surgical aortic valve replacement (SAVR), particularly for high-risk patients. However, current evidence suggests SAVR remains superior for surgically suitable patients.

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Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology
  • Medical Technology Innovation

Background:

  • Transcatheter aortic valve implantation (TAVI) emerged as a less invasive alternative to surgical aortic valve replacement (SAVR).
  • Initially reserved for high-risk patients ineligible for SAVR, TAVI aimed to improve outcomes for those with severe aortic valve stenosis.
  • The stentvalve prosthesis, invented by Henning Rud Andersen, enabled foldable valve delivery via catheter, avoiding cardiopulmonary bypass.

Purpose of the Study:

  • To investigate the comparative quality and outcomes of TAVI versus SAVR.
  • To define the appropriate clinical indications for TAVI based on procedural safety and patient outcomes.
  • To evaluate TAVI's efficacy in both high-risk and surgically amenable patient populations.

Main Methods:

  • Review of outcomes from TAVI procedures at Skejby Hospital in high-risk patients.
  • Analysis of international publications supporting TAVI in high-risk populations.
  • Prospective randomized controlled trial comparing TAVI and SAVR in surgically amenable patients over 75 years old.

Main Results:

  • TAVI demonstrated promising results in high-risk patients, showing superiority over standard medical treatment despite prosthetic regurgitation risks.
  • Studies indicated acceptable procedural safety and significant symptom improvement in high-risk TAVI recipients.
  • A randomized trial comparing TAVI to SAVR in surgically amenable patients was terminated early due to a non-significant trend towards more complications with TAVI.

Conclusions:

  • Current evidence supports TAVI as a superior treatment to standard medical care for patients unable to undergo SAVR due to high risk.
  • For surgically amenable patients, TAVI with currently available devices is not yet competitive with SAVR in terms of procedural safety and outcomes.
  • Further research is needed to refine TAVI indications and device technology for broader patient applicability.

Related Experiment Videos

Last Updated: May 15, 2026

Improved Registration of 3D CT Angiography with X-ray Fluoroscopy for Image Fusion During Transcatheter Aortic Valve Implantation
06:59

Improved Registration of 3D CT Angiography with X-ray Fluoroscopy for Image Fusion During Transcatheter Aortic Valve Implantation

Published on: June 3, 2018