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Human electrogastrograms. Comparison of surface and mucosal recordings
Digestive Diseases and Sciences
|January 1, 1986
Summary
This study shows that surface electrogastrograms can effectively record gastric basic electrical rhythm (BER). This non-invasive method shows potential for diagnosing gastric motility disorders and nausea by detecting abnormal BER rates like tachygastria.
Area of Science:
- Gastroenterology
- Medical Devices
- Physiology
Background:
- Gastric basic electrical rhythm (BER) is crucial for normal stomach function.
- Current methods for recording BER can be invasive.
- Non-invasive techniques are needed for better diagnosis of gastric motility disorders.
Purpose of the Study:
- To describe and validate a method for recording gastric BER using skin electrodes (surface electrogastrogram).
- To correlate surface recordings with invasive mucosal electrodes.
- To investigate the utility of surface electrogastrograms in patients with gastric motility disturbances and nausea.
Main Methods:
- Simultaneous recording of gastric BER using skin electrodes and mucosal suction electrodes in 20 healthy volunteers.
- Investigating 5 patients with gastric motility disorders (including diabetic gastroparesis) and chronic nausea.
- Analyzing BER amplitude changes with gastric contractions and BER rate during nausea episodes.
Main Results:
- Successful simultaneous recording in 80% of volunteers.
- Increased BER amplitude correlated with gastric contractions.
- Preserved BER in patients with diabetic gastroparesis; tachygastria (increased BER rate) observed during nausea episodes and in atrophic gastritis with delayed gastric emptying.
Conclusions:
- Surface electrogastrogram is a viable non-invasive method for recording gastric BER.
- This technique shows promise for investigating gastric arrhythmias and motility disorders.
- Detecting tachygastria via surface electrogastrogram may aid in diagnosing conditions like diabetic gastroparesis and atrophic gastritis.