Mechanical valves are made totally of mechanical parts which are tolerated well by the body. The leaflet 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.
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.
boMedics 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.
The risks of any anesthesia include: –
The risks of any surgery include: –
The risks of cardiac surgery include: –
It is very important to take steps to prevent valve infections. You may need to take antibiotics indefinitely or before dental work and other invasive procedures.
The success rate of heart valve surgery is high. The operation can relieve your symptoms and prolong your life.
The death rate averages 2% to 5%, depending on the heart valve. About 2 of every 3 patients who received an artificial mitral valve are still alive 9 years after the surgery.
The clicking of the mechanical heart valve may be heard in the chest. This is normal.