Related Experiment Videos
Severe pediatric ulcerative colitis: a prospective multicenter study of outcomes and predictors of response
Dan Turner1, David Mack, Neal Leleiko
1Shaare Zedek Medical Center, Jerusalem, Israel.
Insights
The Pediatric UC Activity Index (PUCAI) effectively identifies children with severe ulcerative colitis (UC) who may not respond to intravenous corticosteroids. Early PUCAI scores predict the need for salvage therapy, including infliximab, which shows promise in steroid-refractory cases.
Area of Science:
- Pediatric Gastroenterology
- Inflammatory Bowel Disease Research
- Clinical Trial Analysis
Background:
- Severe ulcerative colitis (UC) in children presents significant management challenges.
- Identifying non-responders to initial intravenous corticosteroid therapy is crucial for timely intervention.
Purpose of the Study:
- To assess outcomes in children with severe UC treated with intravenous corticosteroids.
- To identify predictors of nonresponse to corticosteroids and evaluate salvage therapies.
Main Methods:
- A prospective study enrolled 128 children with severe UC across 10 pediatric centers.
- Clinical data, laboratory values, and the Pediatric UC Activity Index (PUCAI) were collected.
- Patients were followed for 1 year postdischarge to assess outcomes.
Main Results:
- 29% of children failed intravenous corticosteroids, with 89% receiving infliximab as salvage therapy.
- The PUCAI, particularly on days 3 and 5, strongly predicted corticosteroid response and need for salvage therapy.
- Infliximab treatment led to response in 25 of 33 children; cumulative colectomy rates were 9% at discharge and 19% at 1 year.
Conclusions:
- The PUCAI is a valuable tool for identifying pediatric UC patients requiring salvage therapy within days of initiating corticosteroids.
- Infliximab demonstrates efficacy as a salvage therapy for steroid-refractory pediatric UC.
- Early PUCAI scores predict long-term response and outcomes in severe pediatric UC.
Background & Aims:
In a prospective study of children with severe ulcerative colitis (UC), we aimed to assess outcomes and to identify predictors of nonresponse to intravenous corticosteroids.
Methods:
A total of 128 children (47% males; 12.9 +/- 3.9 y) hospitalized for severe UC were enrolled from 10 pediatric centers. Clinical and laboratory data and the Pediatric UC Activity Index (PUCAI) were recorded throughout the admission. Patients were followed up for 1 year postdischarge.
Results:
Thirty-seven (29%; 95% confidence interval [CI], 22%-37%) children failed intravenous corticosteroids and received, within 10.5 +/- 6.4 days, cyclosporine (n = 1; 3%), colectomy (n = 3; 8%), or infliximab (n = 33; 89%). Several predictors were associated with intravenous corticosteroids failure, but the best model included number of stools, amount of blood, age, and new-onset disease (odds ratio [OR], 1.9; 95% CI, 1.1-3.5; OR, 2.5; 95% CI, 1.3-4.6; OR, 1.2; 95% CI, 1.04-1.36; and OR, 0.27; 95% CI, 0.1-0.7, respectively). The PUCAI, followed closely by the Travis rule, strongly predicted response when compared with other measures (Seo and Lindgren indices, C-reactive protein level, and fecal calprotectin level) (P < .001). Aiming for sensitivity on day 3, a PUCAI greater than 45 screened for patients likely to fail intravenous corticosteroids (negative predictive value, 94%; positive predictive value, 43%; P < .001). Aiming for specificity on day 5, a PUCAI score greater than 70 optimally guided implementation of salvage therapy (positive predictive value, 100%; negative predictive value, 79%; P < .001). Twenty-five of 33 children treated with infliximab responded. The overall cumulative colectomy rate was 9% and 19% by discharge and 1-year, respectively. The day 3 PUCAI score predicted response up to 1 year postdischarge (P < .001; time to salvage therapy).
Conclusions:
The PUCAI, calculated on days 3 and 5 of steroid therapy, can identify patients requiring salvage therapy. Infliximab is an effective therapy in steroid-refractory pediatric UC.
Related Concept Videos
Drugs for Treatment of Ulcerative Colitis in IBD
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the colonic...
Inflammatory Bowel Disease II: Ulcerative Colitis
Inflammatory Bowel Disease I: Ulcerative Colitis
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Inflammatory Bowel Disease V: Surgical Management
Here are some common surgical interventions for IBD:
Inflammatory Bowel Disease IV: Pharmacological Management
Pharmacologic...