Hi sdexter and :welcome:
If the last part of your terminal ileum is affected, which it sounds like it is in your case, then it is very common to resect the caecum as well.
The problem with a resection in this area of the bowel is the differing size between the small bowel and the caecum, The caecum is a pouch like structure at the start of the large bowel and it is not possible for a surgeon to connect the small bowel to it as the size difference is too great. Also they need to be able to connect two healthy ends of bowel.
An ileostomy is usually mentioned as a possibility because all the imaging in the world doesn't necessarily give an accurate picture of what they may find when they get in there. If there is too much inflammation present they will often do a temporary ileostomy as a bowel saving measure. What I mean by that is, to have successful surgery you must join two unaffected ends of bowel together. To do that with extensive inflammation means taking out a much larger amount of bowel. So to avoid that they will create a stoma and so allow the bowel to rest and the inflammation to settle. They then go back in 3-6 months later and reverse the stoma, that way you only have resected what absolutely has to be taken out.
Both of my children have had the surgery you are facing and neither ended up with a stoma. I don't know how often it actually happens but under controlled circumstances, as in not emergency surgery, and with the surgeon confident of what he will likely find it would be on the rarer side.
Bile salt malabsorption diarrhoea is a very real possibility post surgery but for most people they are able to control it with either prescribed medication or something like psyllium. Both of my children suffer with this to varying degrees but they have it well in hand and it does not affect their quality of life unduly. I personally believe there is some natural take up over time and bear in mind not everyone has this problem following surgery.
The other thing you will have to be mindful of is your B12. The terminal ileum is the only area of the bowel that it is absorbed. You must ensure that you have your levels checked regularly post op to stay on top of what may become a deficiency. I would also recommend that you also have your Iron Studies, Folate and Vit D checked at the same time.
Good luck and welcome aboard!
Dusty. xxx