The major operative indication for ulcerative colitis is intractabilit
y. Although steroid side effects appeal-to be closely associated with
surgical indications for intractable ulcerative colitis. this relation
ship has yet to be analyzed in detail. To elucidate this relationship,
we investigated 39 surgical patients with intractable ulcerative coli
tis. as defined by the Research Committee for Intractable Diseases of
the Ministry of Health and welfare of Japan, and 66 conservatively tre
ated patients with ulcerative colitis, of whom 6 had intractable disea
se. All patients with major steroid side effects and 17/24 (71%) patie
nts with minor side effects underwent: surgery. The median number of a
dmissions was higher in patients with major side effects than in those
with less severe or no side effects in the operative series, while th
is value was lower in the non-operative series than in the operative s
eries. This tendency was similar for the total duration of hospitaliza
tion and the number of relapses. In the operative series, markedly hig
her steroid doses were administered to patients with side effects than
to those without, and lower doses were given in the non-operative ser
ies, On multivariate regression analysis, the presence of steroid side
effects, disease extent, and disease duration were significantly asso
ciated with surgery. Patients without side effects had a higher postop
erative complication rate than those with minor side effects. We concl
ude that major side effects are a surgical indication for patients wit
h intractable ulcerative colitis, and that even minor side effects sho
uld be taken as a surgical indication in view of the patient's quality
of life.