Table 4.
Comparison of main parameters in electrogastrography (EGG) between BST and placebo groups.
| EGG parameters | Groups | Normal/abnormal | Electrode sites of EGG | |||||
|---|---|---|---|---|---|---|---|---|
| Channel 1 | Channel 2 | Channel 3 | ||||||
| 0 week | 6 weeks | 0 week | 6 weeks | 0 week | 6 weeks | |||
| Preprandial dominant frequency n, (%) | BST | Normogastria | 37 (74.0) | 30 (69.8) | 29 (58.0) | 25 (56.8) | 29 (58.0) | 25 (56.8) |
| Dysrhythmia | 13 (26.0) | 13 (30.2) | 21 (42.0) | 19 (43.2) | 21 (42.0) | 19 (43.2) | ||
| Placebo | Normogastria | 40 (80.0) | 31 (75.6) | 41 (82.0) | 28 (68.3) | 34 (68.0) | 31 (75.6) | |
| Dysrhythmia | 10 (20.0) | 10 (24.4) | 9 (18.0) | 13 (31.7) | 16 (32.0) | 10 (24.4) | ||
|
| ||||||||
| Postprandial dominant frequency n, (%) | BST | Normogastria | 35 (70.0) | 35 (79.5) | 35 (70.0) | 32 (72.7) | 33 (66.0) | 36 (81.8) |
| Dysrhythmia | 15 (30.0) | 9 (20.5) | 15 (30.0) | 12 (27.3) | 17 (34.0) | 8 (18.2) | ||
| Placebo | Normogastria | 38 (76.0) | 31 (75.6) | 34 (68.0) | 30 (73.2) | 40 (80.0) | 34 (82.9) | |
| Dysrhythmia | 12 (24.0) | 10 (24.4) | 16 (32.0) | 11 (26.8) | 10 (20.0) | 7 (17.1) | ||
|
| ||||||||
| Power ratio n, (%) | BST | ≥1 | 25 (59.5) | 24 (74.3) | 22 (57.9) | 22 (67.6) | 24 (75.0) | 24 (67.6) |
| <1 | 17 (40.5) | 11 (25.7) | 16 (42.1) | 12 (32.4) | 12 (25.0) | 13 (32.4) | ||
| Placebo | ≥1 | 31 (72.7) | 22 (59.5) | 30 (73.2) | 17 (50.0) | 33 (85.0) | 24 (72.2) | |
| <1 | 13 (27.3) | 15 (40.5) | 11 (26.8) | 19 (50.0) | 7 (15.0) | 12 (27.8) | ||
Abnormal EGG findings are defined as a reading of gastric dysrhythmia (including tachygastria, bradygastria, and arrhythmia) in ≥30% (or normogastria < 70%) of the total recordings of EGG in the fed state or a power ratio of >1 [22].
BST: Banha-sasim-tang.