Inflammatory bowel disease developing in paediatric and adult age

Graziella Guariso1, Marco Gasparetto, Laura Visonà Dalla Pozza

  • 1Unit of Gastroenterology, Department of Paediatrics, University of Padua, Italy. guariso@pediatria.unipd.it

Insights

Pediatric inflammatory bowel disease (IBD) often presents with perianal and extraintestinal manifestations, unlike adult-onset IBD which is more commonly associated with severe abdominal pain, diarrhea, and anorexia. These differences highlight distinct disease phenotypes in childhood-onset IBD.

Area of Science:

  • Gastroenterology
  • Pediatric Gastroenterology
  • Clinical Medicine

Background:

  • Inflammatory bowel disease (IBD) incidence is rising globally.
  • Phenotypic differences between pediatric and adult-onset IBD are not well-established.
  • Understanding these differences is crucial for tailored treatment strategies.

Purpose of the Study:

  • To compare the clinical and phenotypic expression of IBD in pediatric-onset versus adult-onset patients.
  • To identify distinct disease characteristics based on age at onset.
  • To analyze IBD manifestations within a single tertiary referral center.

Main Methods:

  • Retrospective and prospective data analysis of 312 IBD patients diagnosed between 1994-2008.
  • Comparison of disease manifestations between pediatric-onset (n=133) and adult-onset (n=179) IBD cohorts.
  • Paediatric patients were sub-categorized into age groups: 0-5, 6-12, and 13-17 years.

Main Results:

  • Pediatric-onset IBD showed higher rates of perianal disease (12.8%) and extraintestinal manifestations (14.3%) at onset.
  • Adult-onset IBD patients more frequently presented with severe abdominal pain, diarrhea, and anorexia.
  • During follow-up, extraintestinal manifestations and perianal disease were more common in the pediatric group.

Conclusions:

  • The phenotypic expression of IBD in pediatric-onset patients differs significantly from adult-onset cases.
  • Distinct clinical features at onset and during follow-up suggest different disease trajectories.
  • These findings underscore the importance of age-specific considerations in IBD management.
Abstract

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