Patient Outcomes

Nothing can be more important than knowing the experience level of your surgeon.  Generally speaking, the more you do something, the better you become!  Since entering practice in 1992, I have performed over 6,500 major heart and lung operations and numerous minor bedside procedures.

Here is a chart showing the amount of valve surgeries I have performed as reported in the Pennsylvania Health Care Cost Containment Council's January 2014-March 2016 Cardiac Surgery in Pennsylvania report:


Along with being one of the busiest heart valve surgeons in the country, over the past 10 years I have consistently had the best outcomes… not by a little, but by remarkable stats. You can read my letter to the Council regarding these results here.

The table below displays the percentage of in-hospital mortality over time for valve cases. As the table shows, my mortality rate went from 1.4% to 0.0% over the past ten years, while the statewide rate went from 4.9% to 2.7% between 2005/2006 and the current reporting period (January 1, 2014 through March 31, 2016).

*Based on patient risk as determined by data submitted to PHC4.

Experience is the most important quality you need in a surgeon. It is crucial that you ask your surgeon the following key questions: How many years have you been in practice? How many of these procedures have you performed in the past 2 years? How many total procedures do you perform? And, most importantly, what are your outcomes?

If your surgeon cannot answer these questions, or if your surgeon is unwilling to answer these questions, then you are in the wrong office!  And, guess what, you DO NOT need to have your surgery done by the surgeon your physician recommended.  You DO have the right for a second opinion, including if that opinion needs to be at a DIFFERENT hospital network!  It sickens me that patients are led to believe that they do not have a choice.  Many patients come to me from other hospital networks, including those with heart surgery programs.  That's because more and more patients are using the Internet and demanding "second opinions."  You should demand a second opinion as well, as I discuss in the video below...

Pennsylvania Health Care Cost Containment Council (PHC4) Results

All of my surgical partners are able to share their experience and results with you.  In addition, you can go to the Pennsylvania Health Care Cost Containment Council (PHC4) at to obtain more of our yearly results.  If you review the data, you will see that Lehigh Valley Hospital has among best outcomes in the State for heart surgery.  Specifically, we have significantly lower mortality rates than predicted for both coronary artery bypass surgery and valve surgery.

In a past report, only one heart surgeon in the entire state of Pennsylvania received a "significantly better than expected" outcome for mortality.  I was very honored to be recognized for this achievement on the front page of the Philadelphia Inquirer:

PHC4 is an independent state agency formed in order to address the rapidly growing health care costs.  PHC4's first report was published on November 20, 1992. Many surgeons view "report cards" with skepticism; however, I personally believe that public reporting of surgeons' outcomes is very important.  As a result of the success of the PHC4's reporting, hospitals across the state quickly began to look at their internal processes for credentialing heart surgeons, ensuring proper training and quality.

Among other observations, the PHC4 report suggests that higher volume surgeons have better outcomes.  This makes sense, of course.  The more you do something, the better your experience, and likely the better your outcomes.  At Lehigh Valley Health Network, there is a minimum standard for both volume and outcomes for all of our heart surgeons.

Since the first reporting of heart surgeons outcomes in Pennsylvania in 1992, the mortality rate for coronary artery bypass and valve surgery has dropped dramatically.  The fact is, report cards change behavior and I applaud PHC4 for their reporting efforts.  While report cards don't tell you everything about a surgeon or hospital, they do provide a lot of important information.  More importantly the public reporting of surgeons' outcomes provide an incentive for surgeons and hospitals to focus on quality and service.

US News

These reports --PHC4, Consumer Reports, US News and World Report-- are widely distributed and are available to insurance companies, businesses, and consumers alike.  No doubt, having good data is important and relevant.  This is why as Vice Chair of Quality and Patient Safety at Lehigh Valley Health Network, I encourage our surgeons to become engaged in the reporting process and in doing so, improve their outcomes for our patients. 

Below are charts listing my personal experience and outcomes for all of my major heart and lung procedures.  I will be updating the data every few months in order to keep you informed of my results.  As I said above, when seeking a surgical opinion it is important to ask your surgeon for his or her results.  If your surgeon cannot or will not provide you with his or her results, you should NOT let that surgeon operate upon you or our family.  Always ask for a second opinion.

Total Major Operations Performed by Dr. Singer

Total Cases
Total Major Operations (Updated November 16, 2017)

Breakdown of Types of Operations

Breakdown Circle Chart
Breakdown of Types of Operations (Updated November 16, 2017)

Dr. Singer's Coronary Artery Bypass Surgery Results

Coronary Artery Bypass (Updated November 16, 2017)

Dr. Singer's Valve Surgery Results

Valve Chart
Valve Surgery Results: (Updated November 16, 2017)

The percentage of valve operations performed by me has increased steadily since 1999, after traveling to London and Paris to learn advanced aortic valve and mitral valve techniques.

Below are my results for isolated mitral valve repair operations since 2000.  In general, whenever possible, it is always better to repair the mitral valve as opposed to replacing it with a prosthetic valve. Having said that, sometimes the mitral valve simply cannot be repaired and a prosthetic valve replacement is warranted.

Currently, the majority of my patients who have mitral valve prolapse can have their valve repaired without the need for a replacement valve. Mitral valve repair is a safe operation, as illustrated below:

Dr. Singer's Isolated Mitral Valve Repair Results* 

Mitral Repair
Mitral Repair: (Updated November 16, 2017)

*This graph represents "isolated mitral valve repair" cases.  I also perform mitral valve repair combined with other procedures.  For example, some patients require coronary artery bypass and mitral valve repair as one procedure. Many patients have calcified valves which are not readily repairable. Lastly, in older patients or patients with advanced coronary disease, mitral valve replacement may be a better choice.  These types of cases are not included in this graph, but are part of the total number of valve cases I perform yearly.

Dr. Singer's General Thoracic Surgery Results*

Thoracic Chart
Thoracic Chart: (Updated November 16, 2017)

*The term "General Thoracic Surgery" refers to major lung, esophageal, and chest wall procedures.