Background-Thirty children operated on for Crohn's disease (CD) were r
eviewed (1975-1994). The aim of the study was to assess their postoper
ative outcome. Patients-19 boys and 11 girls, aged 15.3 (2) years (ran
ge 11.3-20) at surgery were studied. Results-Surgical indications were
acute complications of CD and chronic intestinal illness. Six months
after surgery, 11 of 12 patients had been weaned off steroids, and 22
of 23 patients were weaned off nutritional support; 17 patients withou
t recurrrence had a mean (SD) weight gain of 2.1 (8) kg and a height g
ain of 3.36 (3) cm. During 3.1 (2.7) years follow up, 12 patients (40%
) had a recurrence of the disease after 19.4 (14) months (means (SD):
supra-anastomotic recurrence (six), severe perianal disease (two), and
chronic illness (four). Six of 14 patients who were treated with mesa
lazine (13) or azathioprine tone) had recurrences. The postoperative r
ecurrence rate was 50% at two years. Conclusion-Surgical treatment mod
ifies the immediate outcome of severe or complicated CD, but does not
prevent recurrence, despite localised resection or prophylactic postop
erative treatment. Extension of the disease before surgery seems to be
a major risk factor for postoperative recurrence in children.