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Updated: Aug 13, 2026
Assessment of Neuromuscular Function Using Percutaneous Electrical Nerve Stimulation
Published on: September 13, 2015
Reproducibility of ambulatory cutaneous electrogastrography in healthy volunteers
Y Real Martínez1, A Ruiz de León, M Díaz-Rubio
1Servicio de Aparato Digestivo, Hospital Clínico Universitario San Carlos, Madrid, Spain. yrealm@medymet.com
Objective:
Cutaneous electrogastrography (cEGG) is a technique used for recording gastric electrical activity through electrodes placed on the abdominal skin. Given its increasing use for different pathologies, we decided to study its reliability (or reproducibility), that had never been appropriately assessed before.
Methods:
Ambulatory cutaneous electrogastrogram was recorded after US location of the gastric antrum in 26 healthy volunteers with ages ranging from 20 to 60 years. cEGG was recorded during 60 minutes in fasting state and 60 minutes after a standard meal and it was repeated in a different day but under the same conditions.
Results:
ANOVA analysis showed significant individual differences regarding dominant frequency (DF) (p = 0.19) and power ratio (PR) (p = 0.11), and before and after the meal, except for DF (p = 0.12), dominant power (DP) (p = 0.59) and bradygastria (p = 0.09). No significant differences were found related to the day of the recording. The intra-observer agreement index showed a good agreement in the DF and the percentage of normogastria (0.91).
Conclusions:
Currently, DF and normogastria percentage are the most reliable variables for the non-invasive study of gastric electric activity.
