摘要
目的 胃电图是应用表面电极进行经皮记录下的胃肌电活动情况。由于其具有非侵入性及与胃蠕动的相关性 ,而激起人们对胃电活动的兴趣 ,它对新生儿意义非同寻常。而新生儿胃电图资料不多且结果不一。本文欲探讨健康新生儿胃电活动与孕后年龄 (胎龄 +日龄 )的相关性。方法 对 2 3名健康早产儿住院期间每周记录 1次胃电活动 ,1 9名足月儿分别进行 1次胃电活动记录 ,共计 6 1次。记录时间为餐前、餐后至少 6 0分钟以及用餐时间。应用计算机化的胃电图参数进行分析 ,相关参数包括主频率 (DF) ,主频率在正常范围内的百分值 (2～ 4CPM % ) ,主频率变异系数 (DFIC) ,餐后与餐前主频率能量比值 (PR)。结果 我们未发现EGG参数值与孕后年龄的相关性。餐后 2～ 4CPM %较餐前值显著下降 (P =0 .0 3 2 ) ,餐后DF(P =0 .2 6 ) ,主频率能量 (P =0 .1 2 )较餐前呈下降趋势 ,但是餐后DFIC较餐前有增加趋势。结论 在我们的研究中 ,通过胃电图我们没有发现胃电活动与孕后新生儿年龄的相关性。与其他资料结果相反 ,我们发现餐后DF ,及主频率能量下降。即使胎龄小于 3 5周的早产儿亦能产生胃电活动图形。总之 ,新生儿胃电图结果还存在许多矛盾之处 。
Background Electrogastrography (EGG), a cutaneous recording of the myoelectrical activity of the stomach using surface electrodes, is attractive due to its noninvasive nature and its correlation with gastric motility. Thus, it is more significant in newborns. Only few data are available and the results are different.Aims To investigate the relationship between gastric electrical activity (GEA) and postconceptional age (PCA) in healthy neonates.Methods EGG was performed longitudinally weekly in 23 healthy preterm infants.Nineteen term infants were examined once, a total of 61 examinations were performed. Recordings were performed for at least 60 minutes before, during, and after meal. Before analysis, we try to exclude noisy information. Spectral analysis methods were used in computing the parameters of the EGG. The EGG variables were Dominant Frequency (DF), percentage of DF in the normal range (2～4 CPM %), dominant frequency instability, coefficient (DFIC) and post- to preprandiat dominant power ratio (PR).Results No development of the EGG variables was found with increasing postconceptional age. A significant postprandial decrease of 2～4 CPM% (P=0.032), and a tendency toward a postprandial decrease of DF (P=0.26) and dominant power (P=0.12), but an increase of DFIC (P= 0.28) compared with preprandial value was found in all periods.Conclusion Examinations with EGG did not show the development of gastric electrical activity related to PCA. In contrast to other data we found no increase in postprandial DF, dominant power and 2-4 CPM %. A high percentage of normal slow waves in preterm infants with PCA below 35 weeks was found. Conflicting results still exist between examinations with EGG in neonates.
出处
《青海医学院学报》
CAS
2003年第2期78-83,共6页
Journal of Qinghai Medical College
关键词
胃电图
胃电活动
孕后年龄
s electrogastrography(EGG) gastric electrical activity(GEA)postconceptional age(PCA)
