Send to

Choose Destination
Gastrointest Endosc Clin N Am. 2014 Oct;24(4):595-605. doi: 10.1016/j.giec.2014.06.009. Epub 2014 Aug 10.

Evaluating esophageal bolus transit by impedance monitoring.

Author information

Division of Gastroenterology, University Clinics of Visceral Surgery and Medicine, Bern University Hospital - Inselspital Bern, Freiburgstrasse 4, Bern 3010, Switzerland; Division of Gastroenterology, Spital Region Oberaargau (SRO) - Langenthal, St. Urbanstrasse 67, Langenthal 4900, Switzerland. Electronic address:


The function of the esophagus is transporting nutrients from the oropharyngeal cavity to the stomach. This is achieved by coordinated contractions and relaxation of the tubular esophagus and the upper and lower esophageal sphincter. Multichannel intraluminal impedance monitoring offers quantification of esophageal bolus transit and/or retention without the use of ionizing radiation. Combined with conventional or high-resolution manometry, impedance measurements complement the quantification of esophageal body contraction and sphincter relaxation, offering a more comprehensive evaluation of esophageal function. Further studies evaluating the utility of quantifying bolus transit will help clarify the role and position of impedance measurements.


Esophageal bolus transit; Esophageal manometry; High-resolution esophageal manometry; Multichannel intraluminal impedance

[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center