Abstract
Objective: To investigate the causes and degree of interobserver variability in esophageal pH monitoring for the diagnosis of gastroesophageal reflux. Methods: This retrospective study included all children (n=72) who underwent pH monitoring during 1 year at Maxima Medical Centre in Veldhoven, the Netherlands. Results: An interobserver variability of 18% was found. Variability was caused by differences in opinion about the duration of registration, doubts about probe position, artifacts and drift of baseline pH. Conclusions: Most of these problems can be eliminated by posttest calibration and assessment of the pH electrode position. However, a clear definition of monitoring artifacts is lacking. This study shows that mutual agreement in the interpretation of pH studies was fair (kappa coefficient of 0.70).
Translated title of the contribution | Gastroesophageal reflux disease in children: How reliable is the gold standard? |
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Original language | Portuguese |
Pages (from-to) | 84-86 |
Number of pages | 3 |
Journal | Jornal de Pediatria |
Volume | 85 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jan 2009 |
Keywords
- Children
- Gastroesophageal reflux
- Gold standard
- pH monitoring