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The best established technique for diagnosing gastroesophageal reflux in children is the 24 hr esophageal pH probe test. No simultaneous comparison of this technique with radionuclide scans has been reported. Therefore, simultaneous 1 hr pH monitoring and gastroesophageal scintigraphy were performed in 49 infants and children with suspected gastroesophageal reflux. Forty-seven of these patients also were later monitored by the 24 hr pH probe test. Upper gastrointestinal series were performed on all patients. All patients with a positive 1 hr pH monitoring also had positive simultaneous scintigraphy. All patients with positive scintigraphy and pH probe monitoring also had a positive upper gastrointestinal series for reflux. The sensitivity of gastroesophageal scintigraphy, when compared to the 24 hr probe as a standard, was 79%; its specificity was 93%. The sensitivity of the upper gastrointestinal series was 86%, when compared to the 24 hr pH probe test. However, it specificity was only 21%.
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W J Byrne, and
A R Euler, and
T Latture, and
M Leach, and
M Campbell
September 1986,
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