Outcomes of surgical aortic valve replacement: the benchmark for percutaneous therapies

Pietro Bajona1, Rakesh M Suri1, Kevin L Greason1

  • 1Division of Cardiovascular Surgery, Department of Surgery, Mayo Clinic, Rochester, MN.

Insights

Transcatheter aortic valve replacement (TAVR) offers an alternative for severe aortic stenosis (AS) patients previously deemed inoperable. Outcomes for TAVR in high-risk AS patients show benefits, with intermediate-risk data pending clinical trials.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Valvular Heart Disease

Background:

  • Severe senile calcific aortic stenosis (AS) historically excluded many patients from surgical aortic valve replacement (SAVR) due to high perceived operative risks.
  • These patients were often classified as 'high risk' or 'inoperable' for SAVR.
  • The advent of transcatheter aortic valve replacement (TAVR) provides a new treatment avenue and necessitates re-evaluation of risk assessment strategies.

Purpose of the Study:

  • To examine current outcomes for surgical aortic valve replacement (SAVR) in high- and intermediate-risk patients with aortic stenosis (AS).
  • To use SAVR outcomes as a benchmark for evaluating emerging percutaneous therapies like transcatheter aortic valve replacement (TAVR).
  • To discuss the evolving role of TAVR in managing AS across different risk strata.

Main Methods:

  • Review of current literature and clinical outcomes data for SAVR in high- and intermediate-risk AS populations.
  • Comparative analysis of SAVR results with emerging data on TAVR efficacy and safety.
  • Discussion of risk stratification algorithms in the context of new treatment options.

Main Results:

  • TAVR has demonstrated benefits in high-risk AS patients.
  • The efficacy of TAVR in intermediate-risk AS patients is still under investigation, awaiting results from ongoing clinical trials.
  • SAVR remains a critical consideration for specific patient groups, providing a basis for comparison.

Conclusions:

  • TAVR is a viable alternative for high-risk patients with severe aortic stenosis (AS).
  • Further clinical trials are essential to clarify the role and outcomes of TAVR in intermediate-risk AS patients.
  • SAVR outcomes serve as an important reference point for assessing the progress of percutaneous valve therapies.

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