That 2 days no drivng seems to be a DVLA rule.
"You need to tell DVLA about some medical conditions as they can affect your driving.
Use the A to Z to check if you need to report your condition and find the relevant form or questionnaire."
https://www.gov.uk/health-conditions-and-driving
I read over the weekend, that many Trusts have been moving to digital over the last 12 months and are now able to reduce their records staff (and wages) from over a hundred, to just a few. I always think of the Yes Minister comedy and their "empty hospial" episode.
I love the Yes Minister and Yes Prime Minister videos.
Thanks for posting the DVLA link, I hadn’t realized that it would be up to the individual to fill in a form and send it to DVLA. I wonder how often that actually happens. I did find the form, HT1 that is used to report heart issues and Atrial Fibrillation is among the conditions. Even before my treatment I never had any of the symptoms listed that would cause me to not drive, i.e. severe dizziness and/or blackouts.
I am sure the 48 hours not driving after my procedure was more to do with the anesthesia than anything else. I had 3 suspicious moles removed from my back in August and there was a 24 hour ban on driving for that even though it was a pretty trivial day surgery with just a local injection at the site of the moles. However I expect that some folks could have adverse reactions to anesthesia so they are just being super safe.
My mother once went in for a test for a particular cancer where they injected her with a chemical and then drew blood an hour later. They then kept her in bed for an hour or 2. My dad was with her and when they came to leave it was lunchtime so they decided to eat in the hospital canteen. Great decision because after they had collected their food and sat down my mother said, “I feel dizzy”, then collapsed unconscious, no heartbeat. Plenty of doctors eating lunch and they called for a crash cart and restarted her heart with paddles after about 10 to 15 minutes. (The batteries were dead on the first cart so they had to fetch another).