| Theme | Recent Advances in Gastrointestinal Functio Tests | |
|---|---|---|
| Title | Electrogastrography | |
| Publish Date | 2002/12 | |
| Author | Taketo Yamaguchi | Department of Medicine and Oncology, Graduate School of Medicine, Chiba University |
| Author | Takeshi Sekiya | Department of Medicine and Oncology, Graduate School of Medicine, Chiba University |
| Author | Takeo Odaka | Department of Medicine and Oncology, Graduate School of Medicine, Chiba University |
| Author | Kazuya Yamaguchi | Department of Medicine and Oncology, Graduate School of Medicine, Chiba University |
| Author | Tadayuki Shishido | Department of Medicine and Oncology, Graduate School of Medicine, Chiba University |
| Author | Kanae Mitsuhashi | Department of Medicine and Oncology, Graduate School of Medicine, Chiba University |
| Author | Masato Ai | Department of Medicine and Oncology, Graduate School of Medicine, Chiba University |
| Author | Hiromitsu Saisho | Department of Medicine and Oncology, Graduate School of Medicine, Chiba University |
| [ Summary ] | The electrogastrogram (EGG) was developed to estimate gastric motor function non-invasively by means of recording gastric myoelectrical activity. An EGG shows rhythmic waves three cycles per minute (3cpm) in normal subjects. Abnormal EGGs display symptoms of bradygastria (0.5-2cpm), tachygastria (4-9cpm) and dysrhythmia (a mixture of tachy- and bradygastria), which are related to gastric functional disorders. Functional dyspepsia (FD) is especially characterized by tachygastria with EGGs. Twenty four hour recordings of EGGs in normal subjects show daily rhythmic patterns; dominant frequencies (DF) rise after every meal, and lower between and before meals within a normal 2-4cpm range. Conversely, in diabetes mellitus patients, daily rhythmic patterns of EGGs cannot be recognized and the DF rises or falls below the normal range. These abnormalities indicate patients' gastric symptoms or poor control of blood sugar levels. | |