Small volume acid reflux in gastroesophageal reflux disease patients with hiatal hernia is only detectable by pH-metry but not by multichannel intraluminal impedance
Diseases of the Esophagus, 08/20/2012
Weigt J et al. – Acid reflux episodes in patients with Hiatal hernia (HH) are more frequently detected by pH–metry than by multichannel intraluminal impedance (MII). Small volume reflux that does not lead to a decrease in impedance is the likely explanation for this phenomenon.