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The string test for gastroesophageal reflux
American Journal of Diseases of Children (1960)
|August 1, 1980
Summary
The string test effectively screens for gastroesophageal reflux in children. This simple method shows promise for diagnosing reflux in pediatric patients presenting with vomiting or respiratory issues.
Area of Science:
- Pediatric Gastroenterology
- Diagnostic Testing
Background:
- Gastroesophageal reflux (GER) is common in infants and children.
- Vomiting, regurgitation, and lower respiratory symptoms can indicate GER.
- Accurate diagnostic tools are crucial for timely intervention.
Purpose of the Study:
- To evaluate the sensitivity of the string test for detecting gastroesophageal reflux in pediatric patients.
- To compare the string test's performance against established diagnostic methods.
Main Methods:
- The study included 15 pediatric patients (5 months to 11 years) with symptoms suggestive of GER.
- Diagnostic methods employed were the string test, barium esophagram, esophageal manometry, and acid reflux (pH probe) test.
- Sensitivity was compared across all tested methods.
Main Results:
- The barium esophagram detected reflux in 4/15 patients.
- The pH probe identified reflux in 7/15 patients.
- The string test demonstrated reflux in 6/15 patients, showing comparable sensitivity to the pH probe.
Conclusions:
- The string test is a sensitive and reliable method for screening pediatric gastroesophageal reflux.
- Its simplicity, speed, and safety make it an efficient tool for initial diagnosis.
- The string test aids in identifying children requiring further investigation for GER.