Thanks, Not Again! :)
I'm having a better day emotionally/pain-wise -- although I'm getting the epic run-around trying to get my medical records sent to the pain management clinic so that they can DECIDE whether I'm allowed to get a first appointment -- why, no, the lady in a wheelchair CANNOT schlep around to three different doctors an hour apart, to fill out this stupid form, and no, I don't have a LANDLINE, much less a FAX MACHINE -- I hate HIPAA with the fire of a thousand suns. Seriously, I need my doctors to work TOGETHER, and I need them to share records! Argh!
I hope that this provides a fun and interesting distraction, and I'm so sorry that you're having another flare!
My daughter and I have actually done some similar research (she's an Environmental Science major, but she's taking a lot of chemistry courses and she's talking with a pharmacology student at her school), and it's an interesting mystery. They're all calcium channel blockers, but you'd think that we'd either be insensitive to either the whole -amides branch and that the -esters would work on us, or that we'd have noticeably reduced responses to all -amides.
Instead, we've used ourselves as guinea pigs in various medical procedures, because we don't have much choice in the matter, but we've reported our successful results to people in the EDS community who might otherwise have to suffer through needless painful procedures like I did throughout my teens and twenties -- nothing like a doctor telling you that you're being a "drama queen" because "I injected twice the normal dose, and you're saying you can still feel the knife -- just close your eyes!" Ugh!
Our results were that Marcaine, Carbocaine, Septocaine, and Benzocaine definitely do work.
Ropivicaine is a 'maybe' (I got it as part of a nerve block procedure with twilight sedation, and when I stopped breathing during the last nerve block and they woke me up to do it, it didn't seem like the Ropivicaine did anything for post-procedure pain -- it did seem to last for a couple of hours the first two times they did it, when I was under.)
But, yeah -- I have Raynaud's (another fun EDS comborbid condition), and I have to get 100 shots in the palms of my hands every 6 months (Botox) in order to keep it under control to the point that it's not agonizing ALL THE TIME and impairing my ability to function (wish I could get my feet done, but I can't afford it -- insurance won't pay, because it's an 'investigational treatment,' even though it's been proven by research studies to work . . . but the Botox manufacturer would have to go through FDA trials to show that this procedure, already in use for palmar and plantar hyperhidrosis, ALSO works for Raynaud's. So far, the profit hasn't been there, since Raynaud's isn't hugely common.)
Anyway, the doctor always flinches, because he usually gives his patients EMLA, and obviously that won't do a thing for me. I keep telling him "Yeah, this is uncomfortable, but it gives me my hands back for six months -- so the shots are nothing!" He tells me I'm hardcore ;)
*hugs and good health/reduced pain vibes*
Not Again said:
Dear Ashbet -
Reading this post caused me to go digging through my anesthesia textbooks to read up about Ehlers-Danlos (I am a CRNA). Did not remember that it is an inherited syndrome, although the incidence is about 1 in 5000 people affected. I certainly hope that you do not have type-IV, which is associated with high risk d/t vascular & cardia complications.
My interest was piqued because of your Lidocaine (aka Xylocaine) issue. Lidocaine is an amide type local anesthetic, which means it is cleared by the liver, like most other drugs.Carbocaine (mepivicaine) & Marcaine (bupivacaine) are also amide anesthetics. Carbocaine and Lidocaine have the same relative potency (2) but carbocaine has a slightly longer duration of action. Marcaine has the hightest relative potency (8) and also the longest duration of action. So now my scientific curiosity has me on a quest to figure out why there is a lidocaine insensitivity with EDS. This is a good thing for me today, since my TN has been screaming since I got up and brushed my teeth this morning :(
Hope you are having a better day :)