体表胃电活动能反映胃的收缩吗?  

The cutaneous electrogastrogram can reflect gastric contractions?

作　　者：杨春敏[1] 毛高平[1] 朱鸣[1] 张映辉[1] 陈英[1] 张秀荣[1] 

机构地区：[1]空军总医院消化科,北京100036

出　　处：《空军总医院学报》2001年第3期131-133,136,共4页Journal of General Hospital of Air Force,PLA

摘　　要：目的　探讨能否通过体表胃电活动辩认胃的收缩。　方法　在狗空腹麻醉状态从静脉灌流红霉素引起胃持续收缩 ,同时记录体表胃电和收缩变化 ,分析胃电活动与胃收缩的关系。　结果　 (1)狗基础状态胃电主频率为 4.2～ 5 .1/ m in。(2 )静脉灌流红霉素引起胃连续收缩时 ,体表胃电振幅 (主功率 )和主功率不稳定系数明显比生理盐水对照组增加 (P<0 .0 1和 P<0 .0 5 ) ,胃电主频率无明显变化 ;(3)预先给予阿托品抑制红霉素的胃收缩活动 ,上述胃电参数明显降低 (P<0 .0 1和 P<0 .0 5 )。 (4)将同步记录的胃电波幅和胃收缩波振幅进行相关分析 ,发现两者之间存在显著的正相关关系 (r=0 .6 98,P<0 .0 1)。　结论　体表胃电活动能够反映胃收缩。Objective To investigate whether gastric contractions can be identified from the cutaneous electrogastrogram(EGG). Methods Simultaneous measurements of gastric myoelectrical and manometric activities were made before and after intraveneous infusion of erythromycin in fasting state in anaesthetized dogs.The correlation between EGG and gastric contractions was analysed. Results (1)Dominant frequency of EGG in baseline study in dogs was 4.2～5.1 cpm. (2) Amplitude (power) and dominant power instable coefficent (DPIC) of EGG significantly increased while gastric contractions were occurring after intraveneous administration of erythromycin ( P <0.01 and P <0.05), as compared with saline control group, but no changes of dominant frequency of EGG was found. (3) EGG parameters mentioned above obviously lowered with pretreatment of Atropine which inhibited erythromycin induced gastric contractions ( P <0.01 and P <0.05). (4)When correlation analysis was conducted between amplitude of EGG and corresponding amplitude of gastric contractions, it was found that the increases in the amplitude of EGG were significantly associated with the increased strenghth of gastric contractility ( r =0.698, P < 0.01). Conclusions The cutaneous electrogastrogram can reflect gastric contractions. The EGG may be taken as an important and useful tool for predicting gastric motiltiy.

关 键 词：胃电描记术 胃肠活动 红霉素 

分 类 号：R573[医药卫生—消化系统] R333[医药卫生—内科学] R978.15[医药卫生—临床医学]