Approximately 50% of patients with GERD-like symptoms have no evidence of acid reflux on endoscopy and 24 h pH testing. New research shows that multichannel intraluminal impedance (MII) pH testing ...

The current standard method for detection of gastroesophageal reflux (GER) in infants and children is pH monitoring (pH probe). The addition of impedance probe measurements may or may not increase the ...