"Hospital Procedure"

In October ,I slipped off a pavement and tore the ligaments in my left knee. I went to a hospital in Wales who treated me ,then told me to see my GP who then referred me to have a MRI scan, and this was the start of my epic wonderment of NHS. MRI scan people would not do it until I got conformation from the surgeon who put a Stent in my arteries and that it was safe to do so,I had a MRI scan 2 years previous with no questions asked, I then told these people this and they continued with the scan, of which was sent to Wythenshawe Hospital where an appointment was made of which I attended and was told that I needed surgery, an appointment was made and then was cancelled because the anaethetist wanted me to have a Echo sounding of my heart, so I complied, got this done I then had a pre- op then received a letter to tell me to appear for the operation. I arrived on the 9th April 2014 at 11am only to be told that my name was not on the list and that I would have to apply again as this was cancelled a week or so ago. The reason for this was, that I take Clopidogrel and Warfarin. The Surgeons secretary informed me with an apology that until I got conformation from my heart specialist of why I take these Tabs they cannot proceed with the surgery. So in compliance I have informed my heart specialist secretary who told me that I should not have to do this as it was not the correct procedure but said she would see to the situation and for me not to worry. My main complaint is that you are asked to fill in a form with all your details including your medication,of which are put in to a computer, so why cant these people reads this beforehand and why cant they communicate with each other as the orthopaedics are less than 100 metre away from the heart dept