I awoke following an aortic valve replacement operation, knowing immediately that I was breathing fully and freely by comparison to last 18 months prior to surgery. Shortly after waking, I was joined by Mr Kadir, I asked "how was it? ", he replied "Perfect, it's a very tight fit, perfect ". This was on 17th May 2017, my choice of valve is a mechanical, and it doesn't make a noise, absolute perfection by Issac Nadir. Thank You very much Mr Kadir, your truly a brilliant physician.