Correlation between manometric and roentgenologic findings of diseases of the esophagus in infants and children.

Roentgenologic and manometric findings in diseases of the esophagus in infants and children were compared. With both procedures combined it was possible to determine the exact localization of the lower esophageal sphincter. For the demonstration of gastroesophageal reflux the roentgenologic water siphon test was used. The excellent correspondence of the results of the water siphon test with manometric findings demonstrated the reliability of this roentgenologic method for detection of reflux. In borderline cases simultaneous manometric and roentgenologic studies were also of great use for demonstration of hiatus hernia.