Select your country:   USA MMS USA - Medical Measurement Systems USA, inc.
  Germany MMS Germany - MMS Deutschland GmbH
  The Netherlands MMS Netherlands - Medical Measurement Systems B.V.
  > International MMS International - Medical Measurement Systems
Interested in
our products?

Contact one of our MMS distributors
We offer
training courses!

Webseminars, clinical training and more.
Questions, need help?
E-mail us

Impedance-pH reflux measurement to diagnose GERD

What is Impedance?

Impedance measurement can be used to detect GERD (Gastro Esophageal Reflux Disease) and distinguish acid and weakly acidic refluxes causing symptoms. 

Gastro-Esophageal Reflux Disease (GERD) is caused by the reflux of gastric contents into the esophagus. Typical patient symptoms are heartburn, regurgitation, and chest pain. These patient groups are often on PPI medication, but non-acidic reflux can still cause symptoms.

Kinds of reflux
Patients with typical
symptoms on PPI therapy

Traditional pH recording only records acidic pH reflux episodes. Impedance-pH detects both acidic and non-acidic reflux episodes.

Combined Impedance-pH recording is clinically useful in the evaluation of symptoms under PPI therapy, as well as for hoarseness, unexplained cough, and applications of particular interest.


Click on the button to see an educational video on Impedance-pH monitoring.

Impedance-pH Measurement