I had the MRCP/ERCP with the Sphincterotomy, they thought I had a Sphincter of Oddi Dysfunction. (feel free to read my blog/journey so far) I would recommend ONLY having this done at a teaching/university hospital near you. Even when done 100% perfect, there is a risk (depending on gender/age) of developing pancreatitis after the procedure, which is very painful and can come back again once you have had it once. The procedure itself was not much different than having an EGD/Upper Endoscopy, you will be sedated, the only weird thing is that you have to be laying partway on your stomach for the procedure. Good Luck and I hope this solves it for you!
Jules RNY 10/30/2007