Research Article

The Effects of Banha-sasim-tang on Dyspeptic Symptoms and Gastric Motility in Cases of Functional Dyspepsia: A Randomized, Double-Blind, Placebo-Controlled, and Two-Center Trial

Table 4

Comparison of main parameters in electrogastrography (EGG) between BST and placebo groups.

EGG parametersGroupsNormal/abnormalElectrode sites of EGG
Channel 1Channel 2Channel 3
0 week6 weeks0 week6 weeks0 week6 weeks

Preprandial dominant frequency , (%)BSTNormogastria37 (74.0)30 (69.8)29 (58.0)25 (56.8)29 (58.0)25 (56.8)
Dysrhythmia13 (26.0)13 (30.2)21 (42.0)19 (43.2)21 (42.0)19 (43.2)
PlaceboNormogastria40 (80.0)31 (75.6)41 (82.0)28 (68.3)34 (68.0)31 (75.6)
Dysrhythmia10 (20.0)10 (24.4)9 (18.0)13 (31.7)16 (32.0)10 (24.4)

Postprandial dominant frequency , (%)BSTNormogastria35 (70.0)35 (79.5)35 (70.0)32 (72.7)33 (66.0)36 (81.8)
Dysrhythmia15 (30.0)9 (20.5)15 (30.0)12 (27.3)17 (34.0)8 (18.2)
PlaceboNormogastria38 (76.0)31 (75.6)34 (68.0)30 (73.2)40 (80.0)34 (82.9)
Dysrhythmia12 (24.0)10 (24.4)16 (32.0)11 (26.8)10 (20.0)7 (17.1)

Power ratio , (%)BST≥125 (59.5)24 (74.3)22 (57.9)22 (67.6)24 (75.0)24 (67.6)
<117 (40.5)11 (25.7)16 (42.1)12 (32.4)12 (25.0)13 (32.4)
Placebo≥131 (72.7)22 (59.5)30 (73.2)17 (50.0)33 (85.0)24 (72.2)
<113 (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.