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A survey on rectal bleeding in children, a report from Iran
Insights
Rectal bleeding in children is often caused by inflammatory bowel disease (IBD), nodular hyperplasia (NH), and juvenile polyposis (JP). A thorough diagnostic approach is recommended for accurate assessment in pediatric patients.
Area of Science:
- Pediatric Gastroenterology
- Colorectal Surgery
- Pediatric Epidemiology
Background:
- Limited epidemiological data exists on pediatric rectal bleeding in Iran.
- Understanding the causes of rectal bleeding in children is crucial for effective management.
Purpose of the Study:
- To investigate and determine the primary etiologies of rectal bleeding in a pediatric cohort in Iran.
- To establish the prevalence of various gastrointestinal conditions presenting with rectal bleeding in children.
Main Methods:
- A cohort of 730 children experiencing rectal bleeding was enrolled.
- Colonoscopy was performed on all participants, with 457 undergoing subsequent histopathological examination.
Main Results:
- The most frequent causes identified by colonoscopy and histopathology were inflammatory bowel disease (IBD) (29.4%, 15.8%), nodular hyperplasia (NH) (24.9%, 10%), and juvenile polyposis (JP) (12.6%, 9.9%).
- Other identified conditions included solitary rectal ulcer, chronic colitis, allergic colitis, focal colitis, and infectious colitis.
- Age distribution varied, with NH patients being youngest (4.6 ± 3.9 years) and those with chronic colitis oldest (9.2 ± 4.6 years) based on histopathology.
Conclusions:
- Juvenile polyposis (JP), nodular hyperplasia (NH), and inflammatory bowel disease (IBD) are the predominant causes of rectal bleeding in Iranian children.
- A comprehensive diagnostic workup is essential for accurate etiological assessment of rectal bleeding in pediatric cases.
Abstract:
Background/aim: Studies on the epidemiology of rectal bleeding in children are limited in Iran. Our aim was to assess etiologies of rectal bleeding in children in Iran. Materials and methods: We enrolled 730 children with rectal bleeding. All the patients underwent colonoscopy, and 457 were further evaluated with histopathology. Results: According to colonoscopy and histopathology, respectively, inflammatory bowel disease (IBD) (29.4%, 15.8%), nodular hyperplasia (NH) (24.9%, 10%), and juvenile polyposis (JP) (12.6%, 9.9%) were the most common causes of rectal bleeding. Other conditions were solitary rectal ulcer (5.3%), chronic colitis (4.6%), allergic colitis (3.3%), focal colitis (1.3%), and infectious colitis (1.1%). In colonoscopy, there were no significant differences in the distribution of pathologies regarding sex, while the youngest and oldest mean ages were found for patients with NH (4.6 ± 3.9 years, P < 0.0001) and those with normal appearance (8.1 ± 4.4 years, P < 0.0001) respectively. Based on histopathologic reports, the youngest patients were diagnosed with infectious colitis (4.6 ± 2.8 years), while patients with chronic colitis were the oldest (9.2 ± 4.6 years, P = 0.003). Conclusion: JP, NH, and IBD constituted the most common etiologies of rectal bleeding in our patients. It is recommended to perform a complete diagnostic approach to accurately assess rectal bleeding in children.
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