What is valve repair?
Valve repair can usually be done on congenital valve defects (defects you are born with) and has a good success record with treating mitral valve defects.
Here are some procedures surgeons may use to repair a valve: -
Commissurotomy, which is used for narrowed valves, where the leaflets are thickened and perhaps stuck together. The surgeon opens the valve by cutting the points where the leaflets meet.
Valvuloplasty, which strengthens the leaflets to provide more support and to let the valve close tightly. This support comes from a ring-like device that surgeons attach around the outside of the valve opening.
Reshaping, where the surgeon cuts out a section of a leaflet. Once the leaflet is sewn back together, the valve can close properly.
Decalcification, which removes calcium buildup from the leaflets. Once the calcium is removed, the leaflets can close properly.
Repair of structural support, which replaces or shortens the cords that give the valves support (these cords are called the chordae tendineae and the papillary muscles). When the cords are the right length, the valve can close properly.
Patching, where the surgeon covers holes or tears in the leaflets with a tissue patch.
What is valve replacement ?
Severe valve damage means that the valve will need to be replaced. Valve replacement is most often used to treat aortic valves and severely damaged mitral valves. It is also used to treat any valve disease that is life-threatening. Sometimes, more than one valve may be damaged in the heart, so patients may need more than one repair or replacement.
There are 2 kinds of valves used for valve replacement : -
Mechanical valves -
which are usually made from materials such as plastic, carbon, or metal. Mechanical valves are strong, and they last a long time. Because blood tends to stick to mechanical valves and create blood clots, patients with these valves will need to take blood-thinning medicines (called anticoagulants) for the rest of their lives.
Biological valves -
which are made from animal tissue (called a xenograft) or taken from the human tissue of a donated heart (called an allograft or homograft). Sometimes, a patient's own tissue can be used for valve replacement (called an autograft). Patients with biological valves usually do not need to take blood-thinning medicines. These valves are not as strong as mechanical valves, though, and they may need to be replaced every 10 years or so. Biological valves break down even faster in children and young adults, so these valves are used most often in elderly patients.
Before the Hospital Stay :-
Most patients are admitted to the hospital the day before surgery or, in some cases, on the morning of surgery. The night before surgery, you will be asked to bathe to reduce the amount of germs on your skin. After you are admitted to the hospital, the area to be operated on will be washed, scrubbed with antiseptic, and, if needed, shaved.
A medicine (anesthetic) will make you sleep during the operation. This is called "anesthesia." Because anesthesia is safest on an empty stomach, you will be asked not to eat or drink after midnight the night before surgery. If you do eat or drink anything after midnight, it is important that you tell your anesthesiologist and surgeon. If you smoke, you should stop at least 2 weeks before your surgery. Smoking before surgery can lead to problems with blood clotting and breathing.
Day of Surgery
Before surgery, you may have an electrocardiogram (ECG or EKG), blood tests, urine tests, and a chest x-ray to give your surgeon the latest information about your health. You will be given something to help you relax (a mild tranquilizer) before you are taken into the operating room.
Small metal disks called electrodes will be attached to your chest. These electrodes are connected to an electrocardiogram machine, which will monitor your heart's rhythm and electrical activity. You will receive a local anesthetic to numb the area where a plastic tube (called a line) will be inserted in an artery in your wrist. An intravenous (IV) line will be inserted in a vein. The IV line will be used to give you the anesthesia before and during the operation.
A heart-lung machine is used for all valve repair or replacement surgeries. This will keep oxygen-rich blood flowing through your body while your heart is stopped. A perfusion technologist or blood-flow specialist operates the heart-lung machine. Before you are hooked up to this machine, a blood-thinning medicine called an anticoagulant will be given to prevent your blood from clotting. The surgical team is led by the cardiovascular surgeon and includes other assisting surgeons, an anesthesiologist, and surgical nurses.
After you are hooked up to the heart-lung machine, your heart is stopped and cooled. Next, a cut is made into the heart or aorta, depending on which valve is being repaired or replaced. Once the surgeon has finished the repair or replacement, the heart is then started again, and you are disconnected from the heart-lung machine. The surgery can take anywhere from 2 to 4 hours or more, depending on the number of valves that need to be repaired or replaced.
Heart valve repair surgery
Valve repair allows the surgeon to fix your faulty heart valve, often without the use of artificial parts.
The advantages of heart valve repair are : -
- Lower risk of infection
- Decreased need for life-long blood thinner medication
- Preserved heart muscle strength
The mitral valve is the most commonly repaired valve, but the aortic and tricuspid valves may also undergo some of these repair techniques.
Decalcification Calcium deposits are cleaned off the valve leaflets, allowing them to be more flexible and close properly.
Triangular resection If a portion of the mitral valve leaflet is flail (floppy), and bows back into the left atrium, a segment may be cut out and the leaflet sewn back together, allowing the valve to close more tightly.
Triangular Resection Mitral Valve Repair If a portion of the mitral valve leaflet is flail (floppy), and bows back into the left atrium, a segment may be cut out and the leaflet sewn back together, allowing the valve to close more tightly.
Bicuspid aortic valve repair :
Recovery Time :-
You can expect to stay in the hospital for about a week, including at least 1 to 3 days in the Intensive Care Unit (ICU). Recovery after valve surgery may take a long time, depending on how healthy you were before the operation. You will have to rest and limit your activities. Your doctor may want you to begin an exercise program or to join a cardiac rehabilitation program. If you have an office job, you can usually go back to work in 4 to 6 weeks. Those who have more physically demanding jobs may need to wait longer.
Life After Valve Replacement :-
Patients with a mechanical valve will need to take a blood-thinning medicine for the rest of their lives. Because these medicines increase the risk of bleeding within the body, you should always wear a medical alert bracelet and tell your doctor or dentist that you are taking a blood-thinning medicine.
Heart valve repair surgery
Lower risk of infection
Decreased need for life-long blood thinner medication
Preserved heart muscle strength
You and your doctor will decide which type of valve is best for you. During valve repair or replacement surgery, the breastbone is divided, the heart is stopped, and blood is sent through a heart-lung machine. Because the heart or the aorta must be opened, heart valve surgery is open heart surgery.
What to Expect :-
Also, remind your cardiologist and surgeon about all of the medicines you are taking, especially any over-the-counter medicines such as aspirin or those that might contain aspirin. You should make a list of the medicines and bring it with you to the hospital. It is always best to get complete instructions from your cardiologist and surgeon about the procedure, but here are some basics you can expect when you have valve repair or replacement surgery.
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