Aortic valve replacement: percent using bioprosthetic valves

Bioprosthetic valves are replacement heart valves made out of tissue. The other type of replacement heart valve is a mechanical valve.  It is considered an isolated aortic valve replacement when it is not done in conjunction with any other surgeries.

Though there are pros and cons to both types of valves, bioprosthetic valves are typically preferred over mechanical valves because mechanical valves require patients to take blood thinners for the rest of their lives.  Taking blood thinners may result in lifestyle modifications such as sports or activity restrictions and dietary constraints. 

About this measure

This measure tracks the percentage of isolated aortic valve replacement patients who had their valve replaced with a bioprosthetic valve in 2012. The second graph shows a trend over time for this measure.  

Note: In this case, a higher number is better.

Most Recent Available Data (Percent)
Northwestern Memorial 98.3
National Average 83.7
Performance Trend (Percent)
  2008 2009 2010 2011 2012
Northwestern Memorial 100 98.6 97 95.5 98.3
National Average 80.9 84 85 85.2 83.7
Source:Society of Thoracic Surgeons,
Percent of Aortic Valves Replaced Using Bioprosthetic Valve.