Aortic valve replacement (Leapfrog Group)

The descriptions for this measure come from source:

“Aortic valve replacement surgery is heart valve surgery to replace a diseased aortic heart valve. Replacement of heart valves are either natural (biologic) or artificial (mechanical). Patients undergoing aortic valve replacement should choose a hospital that has a high success rate for aortic valve replacements and also has lots of experience with the procedure.”
“Select a hospital with lots of experience and the best results for specific procedures, surgeries or conditions. This is known as Evidence Based Hospital Referral (High risk procedures). Evidence-based hospital referral means making sure that patients with high-risk conditions are treated at hospitals with characteristics shown to be associated with better outcomes.”
“Patients can expect the safest possible surgery at hospitals with low mortality rates or high rates of adherence to clinical practices (or processes) known to improve surgical outcomes…. Another important factor related to better surgical outcomes is volume — how many procedures of a given type a hospital performs each year.”
About this measure
The Leapfrog Group scores Aortic Valve Replacement Surgery using data on Volume, Survival or Mortality, and Processes of Care. The score also reflects cost (number of days a patient is in the hospital for this procedure, on average).  Scores are reported as:
1 = Willing to Report
2 = Some Progress
3 = Substantial Progress
4 = Fully Meets Standards

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

Most Recent Available Data (Leapfrog Points)
Northwestern Memorial 4
Leapfrog Goal Fully Meets Standards 4
Performance Trend (Leapfrog Points)
  2008 2009 2010 2011 2012 2013
Northwestern Memorial 4 4 2 2 2 4
Leapfrog Goal Fully Meets Standards 4 4 4 4 4 4
Source:Leapfrog Group,
Aortic Valve Replacement