Aortic valve replacement

Category B - full version without watermark 720x576 (check terms and conditions at The embed version with watermark is free of charge. - Description: Aortic valve replacement is a cardiac surgery procedure in which a patient's aortic valve is replaced by a different valve. The aortic valve can be affected by a range of diseases; the valve can either become leaky (aortic insufficiency / regurgitation) or partially blocked (aortic stenosis). A new catheter-based approach (percutaneous aortic valve replacement or PAVR), which obviates the need for open heart surgery, is being used in some places of the world and is being tested in clinical trials in the United States.