I have developed special expertise in the diagnosis
and treatment of structural heart disease.

Procedures - Percutaneous Valve Replacement

 

This new technology uses a catheter based valve replacement which can be inserted via a femoral artery in the groin or by a small incision over the heart. This is performed to deal with severe narrowing of the outlet valve from the heart (aortic). This is a common problem and increasing frequent in our ageing population. Unlike standard valve surgery this does not require open heart surgery and cardiopulmonary bypass (heart lung machine) and can be performed in patients who are too ill for a normal operation. I have been involved in established a program at Papworth Hospital .

 

The procedure is performed in a modified operating theatre called a cath lab by both a cardiological and cardiac surgery team under general anaesthesia. To gain access to the heart a small incision is made in the groin to reach an artery or more directly over the left side of the chest. A balloon if passed from the incision to the valve and inflated to relieve the narrowing. A tissue valve is crimped (squeezed) down onto a balloon. This then passed through the tube in heart. The crimped valve is carefully positioned and then inflated lodging the expanded valve in the correct position. Checks are performed with angiography and echocardiography. The results look excellent.

These figures how the valve with its mounting frame and how it can be crimped down onto a balloon.

These figures how the valve with its mounting frame and how it can be crimped down onto a balloon.

 

  

The figures show a balloon opening the narrowed aortic valve and subsequently the valve being implanted.

 

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