Inflammatory Bowel Disease (IBD) (cont.)
Inflammatory Bowel Disease Prognosis
The typical course of the inflammatory bowel diseases (for the vast majority of persons) includes periods of remission interspersed with occasional flare-ups.
- A person with ulcerative colitis has a 50% probability of having another flare-up during the next 2 years. However, a very broad range of
experiences exists; some persons may only have one flare-up over 25 years (as many as 10%); others may have almost constant flare-ups (much less common).
- Persons with ulcerative colitis limited to the rectum and sigmoid at the time of diagnosis have a greater than 50% chance of progressing to more extensive disease and a 12% rate of colectomy
over 25 years.
- More than 70% of persons presenting with proctitis (inflammation of the rectum) alone continue to have disease limited to the rectum over 20
years. Most that develop more extensive disease do so within 5 years of diagnosis.
- Among persons with ulcerative colitis involving the entire colon, 60% eventually require colectomy, whereas very few persons with proctitis do.
- Most of the surgical intervention is required in the first year of disease; the annual colectomy rate after the first year is 1% for all persons with ulcerative colitis. Surgical resection for
persons with ulcerative colitis is considered curative for the disease.
- The course of Crohn's disease is much more variable than that of ulcerative colitis. The clinical activity of Crohn's disease is independent of the anatomic location and extent of the
- A person in remission has a 42% likelihood of being free of relapse for 2 years and only a 12% likelihood of being free of relapse for 10
- Over a 4-year period, approximately 25% of persons remain in remission, 25% have frequent flare-ups, and 50% have a course that fluctuates between periods of flare-ups and remissions.
- Surgery for Crohn's disease, generally is performed for the complications (stricture, stenosis, obstruction, fistula, bleeding) rather than for the inflammatory disease itself.
- After operation, there is a high frequency of recurrence of Crohn's disease, generally in a pattern mimicking the original disease pattern, often on one or both sides of the surgical
- Approximately 33% of persons with Crohn's disease who require surgery, require surgery again within 5 years, and 66% require surgery again within 15 years.
- Endoscopic evidence for recurrent inflammation is present in 93% of persons 1 year after surgery for Crohn's disease.
- Surgery is an important treatment option for Crohn's disease, but patients should be aware that it is not curative and that disease recurrence after surgery is the rule.
Medically Reviewed by a Doctor on 10/2/2015
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