14781-koppen

163 Water-perfused colonic manometry 7 FIGURE 4: The count per hour of the cyclic (A and B), short-single (C and D), and long-single (E) propagating motor patterns. The children are shown in green, healthy adults in blue, and adult patients with slow-transit constipation shown in red. The closed shapes of each color represent the preprandial data and the open shapes the postprandial data. The meal did not increase the count of any motor pattern in children. There was a significant difference ( P < .0001) in the count of the retrograde cyclic motor patterns after the meal among the three groups, with an increase in this motor noted in health but neither of the patient groups. There was also a significant difference in the pre- and postprandial count of long-single motor patterns ( P = .0006 and P = .04; respectively) with a greater number recorded in children than the two adult groups. Note the difference in the scale of the Y-axis for the cyclic, short-, and long-single motor patterns.