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Value of tests for evaluation of gastroesophageal reflux in children
Insights
Diagnosing pediatric gastroesophageal reflux disease (GERD) involves multiple tests. No single test is superior, but combining results enhances diagnostic certainty for reflux in children.
Area of Science:
- Pediatric Gastroenterology
- Diagnostic Accuracy Studies
Background:
- Gastroesophageal reflux disease (GERD) is a common condition in children.
- Accurate diagnosis is crucial for effective management and preventing complications.
Purpose of the Study:
- To evaluate the diagnostic accuracy of five common tests for GERD in symptomatic children.
- To compare the sensitivity and specificity of barium esophagram, Tuttle test, extended esophageal pH monitoring, esophagoscopy, and esophageal biopsy.
Main Methods:
- A study involving 93 children with GERD and 16 non-reflux controls.
- Comparison of five diagnostic tests: barium esophagram, Tuttle test, extended esophageal pH monitoring, esophagoscopy, and esophageal biopsy.
Main Results:
- Esophagoscopy showed lower sensitivity for reflux detection compared to other tests (P < 0.001).
- Esophageal biopsy was more effective than barium swallow in identifying reflux patients (P < 0.02).
- No single test demonstrated superiority over others; however, elevated esophageal pH monitoring scores correlated with increased likelihood of surgical repair.
Conclusions:
- No single diagnostic test is definitively superior for pediatric GERD.
- Combining results from multiple diagnostic tests increases diagnostic certainty.
- Utilizing several tests is recommended when a single test's results do not align with clinical suspicion.
Abstract:
The accuracy of five tests for the diagnosis of gastroesophageal reflux in children was performed in 93 symptomatic children with gastroesophageal reflux and 16 nonreflux patients. These tests include the barium esophagram, the Tuttle test, extended esophageal pH monitoring, esophagoscopy, and esophageal biopsy. Esophagoscopy was less sensitive in detecting reflux in patients than any other test (P = less than 0.001), and biopsy was more likely to identify reflux patients than the barium swallow (P = less than 0.02), but there was no test superior to others. The severity of esophagitis noted at endoscopy or the presence of eosinophils or neutrophils in the mucosa was not associated with a decreased possibility that one other test would be normal or that surgical repair of the reflux would be performed. Patients with extended esophageal pH test scores markedly elevated were less likely to have another negative test (P = less than 0.01) and more likely to have surgical repair of gastroesophageal reflux (P = less than 0.001). Obtaining two tests of esophageal function that agree increases the certainty of diagnosis, and use of several tests are indicated if the results of a single test do not support the clinical impression.