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Anorectal functional abnormalities in Egyptian children with chronic functional constipation.
Abeer Fathy1, Ahmed Megahed, Tarik Barakat
1Paediatric Gastroenterology and Hepatology Unit, Mansoura University Children's Hospital, Faculty of Medicine, Mansoura University, Mansoura City, Egypt. abeerfathy2000@yahoo.com
Summary
Egyptian children with chronic functional constipation show a higher maximal tolerable volume on anorectal manometry. About one-third of these children also exhibit abnormal defaecation dynamics, highlighting the need for standardized measurements.
Area of Science:
- Pediatric Gastroenterology
- Physiology
- Clinical Research
Background:
- Chronic functional constipation is common in children, accounting for 95% of pediatric constipation cases.
- Existing data on its epidemiology, pathophysiology, and anorectal function vary significantly across populations.
- This study focuses on Egyptian children to provide specific insights.
Purpose of the Study:
- To evaluate epidemiologic data, pathophysiology, and anorectal functional abnormalities in Egyptian children with chronic functional constipation.
- To identify specific manometric features and defaecation dynamics in this population.
Main Methods:
- A study involving 150 children diagnosed with chronic functional constipation and 50 healthy controls.
- Utilized structured questionnaires, clinical examinations, and digital rectal examinations.
- Anorectal manometry, including integrated electromyography of the external anal sphincter and puborectalis muscle, was performed on all participants, with defaecation dynamics assessed in those aged 5 years and older.
Main Results:
- Constipated children demonstrated a significantly higher maximal tolerable volume compared to controls (p=0.03).
- No significant differences were observed in other anorectal manometric parameters between the groups.
- Abnormal defaecation dynamics were identified in 36.8% (35 out of 95) of the tested pediatric patients.
Conclusions:
- An increased maximal tolerable volume is a key manometric finding in Egyptian children with chronic functional constipation.
- Approximately one-third of the evaluated children presented with abnormal defaecation dynamics.
- Standardization of anorectal manometry techniques and establishment of laboratory-specific normal ranges are recommended.
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