Yes, there are lots of articles about
GERD and vagus nerve. The term you need to look for is cardioesophageal reflex (not reflux). The esophagus can trigger heart arrhythmias and vice versa. I have this problem. When I eat somethings to which I am sensitive/allergic, I get tachyarrhythmias.
Why not start your own thread? You'll get more responses. Hijacking someone else's is considered rude.
There's no need for sedation for any of the scopes. I have to work after my scopes, so I don't even get an IV. Endo doesn't hurt, just gags me. Colonoscopy hurts like the dickens for 5 minutes, most of procedure is painless. Versed only gives amnesia, not a pain killer. Fentanyl only works a little on pain and makes lots of people vomit afterwards - for hours! Dilaudid works fine on pain and a little stops the pain without knocking you out or giving you amnesia. Propofol gives amnesia and knocks you out.