Heart valve surgery is a procedure used to repair or replace diseased heart valves. Over the past few years, there have been great advances in the surgical treatment of diseased heart valves by heart valve surgery. The diagnostic tests your heart doctor orders help to identify the location, type and extent of your valve disease. The results of these tests, the structure of your heart, your age, and your lifestyle will help your cardiologist, surgeon, and decide what type of heart valve surgery procedure will be best for you.
Minimally invasive approaches to heart valve surgery
Valve repair surgery
Valve replacement surgery
Valve videos
Valve disease can be treated by protecting your valve from further damage, taking medications, seeing your doctor for regular visits and having heart valve surgery.
Heart Valve Surgery
Traditional heart valve surgery
During traditional heart valve surgery, a surgeon will make an incision down the center of your sternum (breastbone) to get direct access to your heart. The surgeon then repairs or replaces your abnormal heart valve or valves. While this approach remains in use, today most patients with isolated valve disease can be treated with minimally invasive techniques.
Minimally invasive heart valve surgery
Minimally invasive surgery is a type of surgery performed through smaller incisions. This type of surgery reduces blood loss, trauma, and length of hospital stay. Heart valve surgery is the most common minimally invasive procedure. Your surgeon will review your diagnostic tests prior to your surgery to see if your are a candidate for minimally invasive valve surgery.
Chest wall incisions used for heart surgery
[Traditional heart surgery incision: median sternotomy]
[Minimally invasive approach: small right thoracotomy incision]
Often, the heart surgeon and cardiologist will use transesophageal echocardiography during the operation to help determine the functioning of the valve before and after surgery.
There are two types of heart valve surgery: valve repair surgery and valve replacement surgery
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.
Common Valve Repairs : -
[ Heart valve prior to commissurotomy ]
[ Repaired heart valve post-commissurotomy ]
Commissurotomy
Fused valve leaflets are separated to widen the valve opening. See illustrations to the right.
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.
Triangular Resection Mitral Valve Repair
[ Ruptured chords at free edge of posterior leaflet. Region to be resected is indicated. ]
[ Abnormal segment has been removed. Leaflet edges are sewn together ]
[ Annuloplasty completes the repair. ]
Annulus support
If the valve annulus is too wide, it may be reshaped or tightened by sewing a ring around the annulus (annuloplasty). The ring may be made of tissue or synthetic material.
Patched leaflets
The surgeon may patch leaflets with tears or holes with tissue patches.
[ Patched Leaflet, Pre-Operation ]
[ Patched Leaflet, Post-Operation ]
[ Annulus Support - Pre-Operation ]
[ Annulus Support - Post-Operation ]
When you have aortic or pulmonic valve disease, heart surgery most often requires replacement of the valve. In some cases, the aortic valve can be repaired.
Bicuspid aortic valve repair
If you have a bicuspid aortic valve (two leaflets instead of three), the surgeon may be able to repair the valve by reshaping the aortic valve leaflets, allowing the valve to open and close more easily.
Heart valve replacement surgery
If valve repair is not an option, your surgeon may choose to replace the valve. The native valve is removed and a new valve is sewn to the annulus of your native valve. The new valve can either be mechanical or biological.
Mechanical valve replacement
Mechanical valves are made totally of mechanical parts which are tolerated well by the body. The bileaflet valve is used most often. It consists of two carbon leaflets in a ring covered with polyester knit fabric. There are advantages and drawbacks to mechanical valves.
If valve repair is not an option, your surgeon may choose to replace the valve. The native valve is removed and a new valve is sewn to the annulus of your native valve. The new valve can either be mechanical or biological.
SJM Regent® Valve
St. Jude Medical® Mechanical Heart Valve
The St. Jude Medical® Regent valve is available for aortic valve replacements, and the standard St. Jude Medical® valve is used in the aortic and mitral valve positions.
The St. Jude heart valve was the first bileaflet mechanical heart valve (St. Jude Medical® (SJM)). This valve has a track record spanning 3 decades of excellent results. This bileaflet mechanical heart valve is designed and manufactured of pyrolytic carbon.
CarboMedics manufactures a variety of bileaflet mechanical heart valves. The Top Hat Supra-Annular valve is used for aortic valve replacement and the standard valve in the mitral position. A third valve, the Reduce R Aortic Valve may also be used for aortic valve replacement.
The valve housing and leaflets are made of Pyrolite carbon, a unique form of carbon which Carbomedics engineers discovered in the sixties. Attached to the carbon housing is a reinforcing band of titanium and attached to the titanium band is a suture ring of PET fabric. A metallic nitinol wire holds the titanium ring to the housing with an interference groove system. Pyrolite is biocompatible.
Advantages : - Mechanical valves are very durable. They are designed to last a lifetime.
Disadvantages : - Due to the artificial material involved, patients who receive these valves require lifelong treatment with a blood-thinning (anticoagulant) medication. Blood-thinners are medications (such as warfarin or Coumadin) that delay the clotting action of the blood. They help prevent clots from forming on the mechanical valve, which can cause a heart attack or stroke.
Tissue valves (also called biologic or bioprosthetic valves)
Tissue valves (also called biologic or bioprosthetic valves) are made of human or animal tissue. Some valves may have some artificial parts to help give the valve support and to aid placement.
There are three types of tissue valves: pig tissue (porcine), cow tissue (bovine), and human (allografts or homografts).
Porcine stented valve. Information and photographs posted with permission from Edwards Lifesciences®
The porcine stented valve was the first generation of porcine tissue valves. They have been available for more than 30 years.
The valves are made from natural porcine aortic valves, but may be used for aortic or mitral valve replacement. They are trimmed and then fixed in buffered glutaraldehyde at high pressure. The valves are mounted on flexible stents (frames). The bottom of the valve is covered with a seamless knitted polytetrafluoroethylene cloth. This material helps to facilitate the healing and ingrowth of tissue around the implanted valve.
Porcine stentless valve. Information and photographs posted with permission from Edwards Lifesciences®
The porcine stentless valve is used for aortic valve replacement. The valve is made from a natural porcine aortic valve and is fixed in buffered glutaraldehyde solution at a low pressure.
No stents or synthetic sewing rings are used. Therefore, these valves are very similar to the homograft valve (see below).
These valves are technically more difficult to implant but are useful in patients with small hypertrophied hearts.
The Carpentier-Edwards PERIMOUNT Pericardial Bioprosthesis
Image of the PERIMOUNT Pericardial Bioprosthesis. Information and photographs posted with permission from Edwards Lifesciences®.
Heart valves built to last : -
This valve is made of bovine pericardial tissue (tissue from a cow heart) that has been preserved in a buffered glutaraldehyde solution and mounted on a flexible frame and a sewing ring of molded silicone rubber, which allows the surgeon to sew the valve to the patient. Both the frame and the sewing ring are covered with a knitted polytetrafluoroethylene (PTFE) cloth.
The aortic pericardial bioprosthesis has been implanted internationally since 1981, and in the United States since 1991. In the summer of 2000, Carpentier-Edwards released a PERIMOUNT valve for the mitral position.
The benefit of this valve is enhanced durability, which is related to the use of pericardium and the specific bioengineering involved in the valve design. Click here to learn more about the durability of these valves.
Aortic Valve Allograft - the Homograft Valve
Homograft Valve. Information and photographs posted with permission from CryoLife®, Inc.
A homograft (also called allograft) is a valve that has been removed from a donated human heart, preserved and frozen under sterile conditions.
Homografts are ideal valves for aortic valve replacement, especially when the aortic root is diseased or there is infection. The heart's natural anatomy is preserved and patients do not need to be on any blood-thinner medications. Although the limited availability is a drawback in some settings, we maintain a large supply and have extensive experience with these valves.
Ross Procedure : -
The Ross procedure involves switching your pulmonary valve to the aortic valve position and then placing a pulmonary homograft. This is a very complex procedure; however it has many benefits, especially for young patients with aortic valve disease. Techniques, such as the Ross Procedure are examples of innovative ways surgeons are able to treat valve disease while protecting the heart's natural functioning. Click here to learn more about aortic surgery options in the young adult.
There are advantages and drawbacks to biologic valves.
Advantages : - Most patients do not need to be on lifelong blood-thinner medication, unless they have other conditions (such as atrial fibrillation) which warrant it.
Drawbacks : - Biologic valves, traditionally, were not considered as durable as mechanical valves, especially in younger people. Previously available biologic valves usually needed to be re-replaced after about 10 years However, recent studies on the PERIMOUNT aortic valve, show that these valves may last at least 17 years without decline in function. This represents a new milestone in durability of biologic valves.
The decision whether to choose a bioprosthetic or a mechanical valve is based on patient choice. In younger patients, the patient may weigh the inconvenience of taking a blood thinner (coumadin) versus the possibility of reoperation during their lifetime. In patients more than 60 years of age, the bovine pericardial valve will probably last for the duration of the patient's life.
The list of of world class heart hospitals in India is as follows : -
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Patient Storys
Successful heart surgery at We Care India partner hospital allows Robert Clarke to live a normal life despite a rare genetic disorder We Care india helped Robert find best super specialised surgeon for his rare conditions.
Mechanical valves are made totally of mechanical parts which are tolerated well by the body. The bileaflet valve is used most often. It consists of two carbon leaflets in a ring covered with polyester knit fabric. There are advantages and drawbacks to mechanical valves.
Image of the PERIMOUNT Pericardial Bioprosthesis. Information and photographs posted with permission from Edwards Lifesciences®.
Homograft Valve. Information and photographs posted with permission from CryoLife®, Inc.
A homograft (also called allograft) is a valve that has been removed from a donated human heart, preserved and frozen under sterile conditions.
