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Neurogastroenterol Motil. 2018 Dec 11:e13521. doi: 10.1111/nmo.13521. [Epub ahead of print]

Same day versus next day antroduodenal manometry results in children with upper gastrointestinal symptoms: A prospective study.

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Center for Motility and Gastrointestinal Functional Disorders, Division of Gastroenterology and Nutrition, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts.



We evaluated the changes in antroduodenal manometry (ADM) parameters and interpretation when the test is performed the day of catheter placement and the following day.


Catheter was placed endoscopically under anesthesia and recorded on day 1 and repeated on day 2. Study parameters including antrum and small bowel motility index (MI) during fasting, meal, postprandial, erythromycin (EES), and octreotide (OCT) challenge phases, the presence of the phase III of the migrating motor complex (MMC), visual postprandial response, and study interpretation were compared between both days.


Twenty patients were studied. Antrum and small bowel MI during fasting, postprandial, and EES challenge phases were significantly higher on day 2 than on day 1 (P < 0.05). The proportion of patients having a phase III of the MMC was significantly higher on day 2 compared to day 1 (65% vs 15%; P = 0.006). Study interpretation changed from day 1 to day 2. On day 1, 70% of the patients had a normal study and 30% had an abnormal study. On day 2, 67% of the patients with an abnormal study on day 1 changed to normal and 33% remained abnormal. All patients with a normal study on day 1 remained normal on day 2.


ADM parameters are affected the day of catheter placement. The MI and presence of the phase III of the MMC were significantly higher on day 2 compared to day 1. Overall, ADM study interpretation changed from day 1 to day 2 in 20% of the patients.


anesthesia; manometry; migrating motor complex; pediatrics


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