Multichannel intraluminal impedance-pH and psychometric properties in gastroesophageal reflux: systematic review.

Objective: Systematically assess studies that have analyzed the psychometric properties of multichannel intraluminal impedance-pH for the diagnosis of gastroesophageal reflux. Systematically verify studies that have analyzed the psychometric properties of multichannel intraluminal impedance-pH regarding the diagnosis of gastroesophageal reflux disease in pediatric patients.

Methods: Systematic review considering specific descriptors (children and adolescents, gastroesophageal reflux disease and multichannel intraluminal impedance-pH) and their synonyms.

Impulse Oscillometry System and Anthropometric Variables of Preschoolers, Children and Adolescents Systematic Review.

Background: To identify the anthropometric variables in equations/reference values of impulse oscillometry system (IOS) parameters in preschoolers, children and adolescents.

Method: Systematic search on the databases MEDLINE/Ovid, SCOPUS and SciELO using the key words "preschool, child and adolescent", "impulse oscillometry", "reference values" and its variations.

Results: This review considered a total of 13 articles.