[Preliminary evaluation of the usefulness of passage time along the alimentary tract in the diagnosis of constipation in children].

In children with constipation the usefulness of passage time along the large bowel was assessed, limiting the number of performed rectal enemas. The preliminary results suggest that it is possible to answer the clinician's questions - whether the passage time is prolonged, and if so, to determine in what segment of the large bowel. This method may be treated as a screening test in the diagnosis of constipation in children.