Acid and non-acid reflux identified by combined MII-pH monitoring
Acid and non-acid reflux identified by combined MII-pH monitoring
Reflux is identified by changes in impedance progressing distally to proximally as liquid advances from the stomach into the esophagus. Information from the pH electrode is used to classify reflux as acid (ie, pH drops from above to below 4) or non-acid (ie, pH remains above 4).
Courtesy of Radu Tutuian, MD and Donald O Castell, MD.