A Preliminary Study on Gastric Electrical Activity in Patients with Gastrointestinal Stromal Tumor / 天津医药

ABSTRACT

Objects To investigate the behavior of gastric electrical activity in patients with gastrointestinal stromal tumor(GIST) to identify the influences of GIST on the normal gastric electrical activity. Methods: The electrogastrogram (EGG) parameters of 27 patients with gastric GIST (GIST group) and 30 healthy volunteers (control group) were detected by the multi-channel electrogastrogram and the data were analyzed. Results: The values of postprandial mean frequency (MF), mean amplitude (MA) and the percentage of normal slow wave (N%) were increased, and the percentage of bradygastria (B%) was decreased than those of the fasting in control group(P 0.05). Compared with control group, the fasting MF and MA increased, the fasting N% of lead 1, 3, 4 and postprandial N% decreased, both percentages of fasting and postprandial tachygastria (T%) increased in GIST group (P < 0.01). The tachygastria incidence was significantly higher in GIST group than that of control (66.7% vs 3.3%, P <0.05). Conclusion: The gastric electrical activity was affected by the existence of GIST. The abnormal gastric electrical rhythm displayed mainly as tachygastria.