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Heart Valve Replacement Surgery: Minimally Invasive Methods

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Topic Overview

Heart surgeons can use less invasive methods for heart surgery.

In conventional open-heart surgery, the surgeon makes an incision in the chest and then spreads the ribs to expose the heart. This type of incision is called a sternotomy.

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In minimally invasive heart surgery, the surgeon makes a smaller incision in the chest. The aortic valve is located near the front of the chest. So surgeons have discovered that aortic valve replacement can be done successfully through this smaller opening.

Surgeons may do this minimally invasive surgery in different ways. These variations include different ways to:

  • Bypass the heart with a heart-lung machine.
  • Protect the heart during surgery.
  • Make the incision in the chest to access the heart.

Despite these variations, in all other ways the technique for replacing the aortic valve is the same in minimally invasive surgery as in conventional valve surgery.

What are the potential benefits of minimally invasive valve replacement surgery?

Less invasive surgery can have benefits over conventional valve replacement surgery. These benefits include:

  • Less blood loss during surgery.
  • Reduced need for blood transfusions.
  • Reduced chance of irregular heartbeat during surgery.
  • Possibility of removing the breathing tube sooner after surgery.
  • Less pain during recovery from surgery.
  • Shorter hospital stay.
  • A smaller scar.
  • Lower risk of infection.
  • Easier treatment in cases of infection.
  • Quicker recovery and return to previous level of activity.
  • Lower overall risk of complications, including death.

What are the controversies over these benefits?

Researchers are still studying the results of minimally invasive surgery to figure out whether all these benefits can be attributed to this technique. Some studies have found that people who had minimally invasive surgery enjoyed many of these benefits. Other studies have found that there has not been a significant difference between minimally invasive surgery and conventional valve replacement surgery, at least in some areas of potential benefit.

Minimally invasive surgery can be safe and effective for the purposes of replacing the aortic valve. One drawback is that because this surgery is more technically complex, it often takes longer to complete. So far, this increase in time required for surgery does not appear to have had an impact on how well the surgery works. The one benefit that minimally invasive surgery is guaranteed to provide is a smaller scar, given that the incision is smaller. But it still remains to be seen whether the benefits consistently extend beyond this cosmetic benefit.

Should I consider minimally invasive valve replacement surgery?

Surgeons are still working to perfect minimally invasive surgery. Greater experience with this technique will likely decrease the time required for surgery and increase the chance that people who have this surgery will enjoy the benefits.

Your decision to have minimally invasive surgery, if that option is available to you, should be based on your doctors' explanations of the benefits and any potential drawbacks of the surgery, which should be based on their experience and current medical literature. You should ask your surgeon about how minimally invasive surgery has benefited other people who had the surgery and what any recent studies have shown.

Also, ask your surgeon how many minimally invasive surgeries he or she has done.

Whether you have the option of choosing to have minimally invasive surgery instead of conventional valve surgery will depend on several things, including whether your:

  • Doctor recommends it.
  • Heart surgeon does minimally invasive surgery and recommends it for you.

One important limitation of minimally invasive surgery is that if you also need to have coronary artery bypass surgery during your valve replacement surgery, minimally invasive surgery may not be an option because it does not provide sufficient access to your coronary arteries.


WebMD Medical Reference from Healthwise

Last Updated: November 02, 2011
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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