Wakefield
I have a pacemaker and have a "Pacemaker Implant Patient ID Card" which I present to Security. Belt off, shoes and socks off, pockets empty. All that goes through the Xray. Then receive pat down search, for which they offer it to be done privately or in public. I take public ( gets a few looks!). Then belt back on to stop pants falling down, shoes back on, refill pockets and move on.
I have 2 issue with this-
1. Security should have an overhead prominent sign designating a dedicated lane for people like myself. Sometime I get from Security "you are in the wrong lane, you should be in that one"
2. More often than not there is no chair to sit on to put your shoes and socks back on.
Other than that it's no big deal and you can't fly if you refuse.