Gastroscan-IAM

Impedance-pH-monitor Gastroscan^®-IAM

• measures the intraluminal impedance of the 7 canneles


• simultaneously measures the acidity in three locations of a gastrointestinal tract in the range from 1.1 to 9.2 pH in 24 hours; the time interval between measurements is 1 sec.


• detects both acid and nonacid bolus movement and acid and nonacid gastroesophageal reflux.


• provides registration of the patient and his actions with the keyboard located on the front panel


• current results of impedance and pH measurements can be displayed directly recording unit during the study


• handles the information stored on your computer


• displays information about the state of the upper gastrointestinal tract


• saves the results of a study in the database


• reveals the pathology of the gastrointestinal tract and individual choice of drug therapy

Combined impedance-pH recordings allows to identify the three types of reflux (Kaibysheva V., Trukhmanov A., Ivashkin V.): Liquid acid reflux: retrograde drop in impedance starting distally together with a pH fall below 4 a) Liquid weakly acidic reflux: retrograde drop in impedance starting distally together with a pH fall below 7 but above 4 (fig. b) Liquid alkaline reflux: retrograde drop in impedance starting distally with pH values above 7 (fig. c)

• Artemiev A.S., Ilin I.A., Kononenko L.V., Mikheev A.G., Mishulin L.E., Nikitina T.V., Rakitin B.V., Trifonov M.M., Shchukin S.I., Yakovlev G.A. The Gastroscan-IAM Impedance/pH Monitor // Biomedical Engineering, March 2014, Volume 47, Issue 6, pp 288-292.


• Kaibysheva V., Trukhmanov A., Ivashkin V. Impedance-pH reflux patterns in patients with non-erosive reflux disease / 22-nd United European Gastroenterology Week October 18 - 22, 2014. Vienna, Austria.


• Kaibysheva V., Trukhmanov A., Ponomarev A., Storonova O., Konkov M., Ivashkin V. Role of acid and non-acid reflux esophageal mucosal damage / 22-nd United European Gastroenterology Week October 18 - 22, 2014. Vienna, Austria.

• Tutuian R, Castell D. Clinical Applications of Esophageal Multichannel Intraluminal Impedance Testing // Gastroenterology & Hepatology, Volume 4, Issue 4 April 2006.


• Donald O Castell, Inder Mainie, and Radu Tutuian. Non-acid Gastroesophageal Reflux: Documenting its Relationship to Symptoms Using Multichannel Intraluminal Impedance (MII). Trans Am Clin Climatol Assoc. 2005; 116: 321-334.


• Radu Tutuian, MD and Donald О Castell MD. Clinical Application of Impedance-Manometry for Motility Testing and Impedance-pH for Reflux Monitoring. Business Briefing: US Gastroenterology Review, 2005.


• A. J. Bredenoord, B. L. A. M. Weusten, R. Timmer and A. I. P. M. Smout. Minimum sample frequency for multichannel intraluminal impedance measurement of the oesophagus. Neurogastroenteral Motil. 2004, 16, 713-719.