Technique and experience with 24-hour esophageal pH monitoring in children.

The technique and scoring system of 24-hr pH esophageal monitoring has been modified to evaluate gastroesophageal reflux in infants and children. The data from two pediatric controls and five clinical cases are presented and compared to normal adult values. This test has better objectivity, precision, sensitivity, and reliability than contrast studies, endoscopy, esophageal biopsy, acid perfusion, or acid reflux tests. The 24-hr pH monitoring assists the evaluation of sphincter maturation, pulmonary disease, and the significance of body position. With more experience, this technique could identify children at risk fo developing severe complications of reflux esophagitis and aid in the selection of candidates for surgical intervention.