Understanding Mitral Valve Surgery

Dr. Raymond Singer Thoracic Surgeon East Norriton, PA

Dr. Raymond Singer is the Chief of Cardiac Surgery at Jefferson Einstein Montgomery Hospital, in East Norriton, Pennsylvania. He is also a Clinical Professor of Surgery at the Sidney Kimmel Medical College at Thomas Jefferson University. He is a member of the Heart and Vascular Institute of Thomas Jefferson University Hospital,... more

A major cause of mitral valve stenosis in the world is due to having a history of rheumatic fever. Though more common in other countries, 1 in 100,000 people in the U.S. will develop mitral stenosis.

Mitral valve prolapse is a more prevalent problem. It affects as many as 1 in 33 people in the U.S., of which 1 in 10 will develop regurgitation (leaking of the valve).

There are many surgical approaches to mitral valve surgery, and therefore it can be confusing to patients who are seeking a second opinion.

The gold standard has been the sternotomy approach, providing access to all regions of the heart and the ability to do combined procedures such as multi-valve surgery, and mitral valve repair combined with atrial fibrillation surgery or coronary artery bypass surgery.

Other approaches utilize a small right thoracotomy with cannulation of the femoral artery and vein for the purpose of going on the heart-lung machine, as opposed to direct cannulation of the heart with a single incision using a conventional sternotomy approach.

What many patients don’t realize is that both approaches require the use of the heart-lung machine and the stopping of the heart to repair the valve.

In robotic mitral valve surgery, a similar right thoracotomy approach is used, along with femoral artery and vein cannulation, except the surgeon looks through a camera with the robot, as opposed to looking directly through the small right thoracotomy wound. The mini-thoracotomy and the robotic thoracotomy approaches are nearly identical procedures, though the robotic involves more setup time and utilizes more complex instrumentation.

Again, all three procedures —conventional sternotomy, mini-thoracotomy, and robotic thoracotomy—are equivalent in the sense that they all require the use of the heart-lung machine to stop the heart in order to repair or replace the mitral valve.

This raises the question, what is the invasive part of a heart operation? Is it the incision? Or is it using the heart lung machine and the need to stop the heart in order to repair or replace the heart valve?

To me the answer is obvious. The invasive part of the procedure is not the incision, but the work that we do on the inside on the heart itself!

Furthermore, when performed well, the conventional sternotomy not only affords a margin of safety, but does NOT cause significant pain, as historically patients have been led to believe —especially by using unfortunate and misleading terms like “cracking the chest.” On the contrary, as seen in all my videos, my sternotomy patients have modest, not large incisions, and rarely have significant discomfort after surgery.

In short, patients in my hands, who have a well-performed standard sternotomy have excellent outcomes (< 1% mortality), short hospital stays (4.5 days) and quick recoveries, with return to driving in 3-4 weeks, with little to no pain.

The take-home message is to always seek a second opinion. The best advice is to ask your surgeon what works best in his or her hands and in their experience. Also, ask your surgeon about his or her years of experience as well as their outcomes. Much of this data is now publicly reported.

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