To gain a better understanding of the underlying dysmotility in constipation in children, we will use a novel minimal invasive method called 3D Transit. We will examine four groups of children aged 7 to 17 years: healthy children, chronically constipated children (ROM IV criteria), children with neurofibromatosis type 1 and finally children receiving chemotherapy (vincristin) for acute lymphoblastic leukemia.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
The investigation is without discomfort and adverse events.
Timeframe: 3 days
Children with chronic constipation has a longer transit time through the colon and fewer fast bowel movements than healthy children.
Timeframe: 3 days
Children in Vincristine treatment has a longer transit time through the colon and fewer fast bowel movements than healthy children.
Timeframe: 3 days
Children with NF1 and gastrointestinal symptoms has a longer transit time through the colon and fewer fast bowel movements than healthy children.
Timeframe: 3 days