Abstract
Patients with symptoms compatible with gastroesophageal reflux (GER) disease and asymptomatic controls were evaluated three times for GER by gastroesophageal reflux scintigraphy (GES) at intervals ranging from 6 h to 15 days and after various periods of fasting. Similarly, in patients and controls, pH monitoring at the distal esophagus was conducted three times by applying the standard acid reflux test (SART) at intervals ranging from 4 h to 3 days after different fasting periods. In 18 of 19 patients and 14 of 15 controls the results of SART were identical on all three occasions. A similar agreement was found for GES in 23 of 25 patients and 20 of 21 controls. The reproducibility of the induced type of reflux after ingestion of acidified orange juice was significantly better than that of the spontaneous types or the induced type of reflux after ingestion of saline. It is concluded that the reproducibility of GES and SART is similarly good.
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