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Manometric assessment of idiopathic megarectum in constipated children
Giuseppe Chiarioni1, Giuseppe de Roberto, Alessandro Mazzocchi
1Clinica di Gastroenterologia ed Epatologia Via Enrico Dal Pozzo, Padiglione W, Perugia 06100, Italy.
Insights
Constipated children with megarectum (enlarged rectum) often have impaired pelvic floor function and abnormal rectal sensation. This study highlights key differences in anorectal function for better understanding this condition.
Area of Science:
- Pediatric Gastroenterology
- Colorectal Physiology
Background:
- Chronic constipation is common in children, often co-occurring with megarectum.
- Megarectum definitions vary, with limited data specific to Italian pediatric populations.
Purpose of the Study:
- To investigate anorectal manometric variables and sensation in constipated children with radiologically defined megarectum.
- To compare these findings with children experiencing recurrent abdominal pain.
Main Methods:
- Utilized standard anorectal manometry techniques.
- Administered rectal balloon expulsion tests.
- Included a control group of children with recurrent abdominal pain.
Main Results:
- Children with megarectum showed distinct abnormalities in anorectal variables and sensation compared to controls.
- Pelvic floor dysfunction was identified in the majority of megarectum patients.
Conclusions:
- Constipated children with megarectum exhibit abnormal anorectal function and sensation.
- These functional and sensory deficits may underlie the pathophysiology of this condition.
Aim:
Chronic constipation is a frequent finding in children. In this age range, the concomitant occurrence of megarectum is not uncommon. However, the definition of megarectum is variable, and a few data exist for Italy. We studied anorectal manometric variables and sensation in a group of constipated children with megarectum defined by radiologic criteria. Data from this group were compared with those obtained in a similar group of children with recurrent abdominal pain.
Methods:
Anorectal testing was carried out in both groups by standard manometric technique and rectal balloon expulsion test.
Results:
Megarectum patients displayed discrete abnormalities of anorectal variables and sensation with respect to controls. In particular, the pelvic floor function appeared to be impaired in most patients.
Conclusion:
Constipated children with megarectum have abnormal anorectal function and sensation. These findings may be helpful for a better understanding of the pathophysiological basis of this condition.
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