<div class="FTQUOTE"><begin quote><i>Originally posted by: <b>JennifersHope</b></i>
My CF doctor wants to make sure I don't have DIOS in my bowel, anyone ever had that? My CF doctor said it is common with CFers, though my surgeon said I don't have it</end quote></div>
I didn't know what it was, so I looked it up. Never heard of it. Hope thats not what you have Jen, you need an easy fix!!!
Distal Intestinal Obstruction Syndrome
Distal Intestinal Obstruction Syndrome (DIOS) or Meconium Ileus Equivalent is characterised by repeated episodes of partial or complete intestinal obstruction in later life. The incidence has vbeen reported to range from 2.1-47% (21,22) of CF patients and is probably related to inadequate doses of pancreatic enzymes particularly as the individual's growth leads to a relative decrease in the number of enzyme capsules/Kg body weight (22). It may present with a right iliac fossa mass and can be difficult to distinguish from appendicitis, intussusception, volvulus, Crohns disease, fistulae, neoplasm's or ovarian conditions.
Interestingly, the incidence of DIOS is increased after lung transplantation. Minkes et al identified a 10% incidence of obstruction with in a short time of transplantation(23).
They cited a number of possible factors including -
1) Prolonged bed rest
2) Use of azathioprine (impairs motility)
3) History of previous abdominal symptoms
4) Conditions surrounding surgery e.g.. Dehydration, General anaesthesia, analgesics
DIOS can normally be managed conservatively. Treatment involves rehydration and the use of oral gastrograffin or N-acetylcysteine. However, in the above series of 70 lung transplant patients the 7 who developed DIOS were managed surgically. Five patients had preoperative hypaque enemas which did not relieve the obstruction and it was felt that all of the patients were too ill to safely undergo further attempts at non-operative management. The authors suggest a pre-transplant regimen of bowel washouts and if possible peri-operative prophylactic N-acetylcysteine in order to prevent post operative DIOS. A high index of suspicion should be maintained at all times in this population of patients.