Difference between early onset and late-onset pediatric ulcerative colitis

Pediatrics International : Official Journal of the Japan Pediatric Society
Ryusuke NambuSeiichi Kagimoto

Abstract

Early onset pediatric ulcerative colitis (EO-UC) is distinguished from late-onset pediatric ulcerative colitis (LO-UC) by the effects of genetic predisposition, but there have been few reports on the clinical features of EO-UC in Asia. To describe and compare the presentation and disease course of EO-UC (age range, 0-7 years) with those of LO-UC (age range, 8-15 years), we retrospectively analyzed 63 children with UC who had been diagnosed between January 2004 and March 2014 at Saitama Children's Medical Center in Japan. Ten patients (16%) had EO-UC, and 53 (84%) had LO-UC. All patients in the EO-UC group and 70% in the LO-UC group had pancolitis (P = 0.05). The period from onset to diagnosis was 9.0 ± 14.1 months for EO-UC and 2.6 ± 3.5 months for LO-UC (P < 0.01). The prevalence of extra-intestinal complications at diagnosis was significantly higher for EO-UC than for LO-UC (50% vs 11%, respectively; P < 0.01). There were no significant differences in the use of corticosteroids, immunomodulators, immunosuppressants, or surgical risk between the groups but, in the EO-UC group, only one patient was treated with cytapheresis and none was treated with anti-tumor necrosis factor (TNF-α) antibodies. The EO-UC group had a higher inc...Continue Reading

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