Rezende-Filho J
Serviço de Gastroenterologia do Hospital, Universidade Federal de Goiás, Goiânia, GO.
Arq Gastroenterol. 1995 Apr-Jun;32(2):54-65.
Cutaneous electrogastrography was performed in nine healthy volunteers and in 43 patients presenting with various clinical conditions known to be associated with gastric motor disorders, including: 24 with functional dyspepsia, nine with longstanding diabetes mellitus, five with recent nausea/vomiting, three with pyloric stenosis, one with post-vagotomy gastroparesis, and one with idiopathic gastric distension and atony. The electrogastrography signal was recorded during 1h pre-prandial period and 1h after eating. The electrogastrography dominant frequency and power were determined using running spectral frequency analysis and the time-course of electrogastrography was evaluated in a pseudo three dimensional graphic. The electrogastrography dominant frequency was divided into four bands: 1. Bradygastria (0-2.4 cpm); 2. Normal (2.4-3.9 cpm); 3. Tachygastria (4.0-9.9 cpm); 4. Duod-resp (10.0-15.0 cpm). The percentage of the dominant electrogastrography power into those four frequency bands was determined. Electrogastrography was considered normal if functional dyspepsia was normal in more than 65% of the time. The electrogastrography was normal (dominant frequency into 3 cpm range in > 65%) in: 9/9 healthy volunteers, 3/3 pyloric stenosis, 4/5 nausea/vomiting, 3/9 diabetes mellitus, 13/24 functional dyspepsia. Gastric dysrhythmias were present in > 35% of the electrogastrography recording in: 1/5 nausea/vomiting, 11/24 functional dyspepsia, 6/9 diabetes mellitus, 1/1 post-vagotomy gastroparesis, 1/1 gastric distension and atony. Persistent tachygastria (> 10%) was found in: 1/1 gastric distension and atony (90% electrogastrography), 1/1 post-vagotomy gastroparesis, 1/5 nausea/vomiting, 6/9 diabetes mellitus, 6/24 functional dyspepsia. It was concluded that electrogastrography is a non-invasive, well-tolerated, reliable means of recording gastric myoelectric activity and gastric dysrhythmias. Patients presenting with gastric motor disorders, with chronic dyspeptic symptoms, or acute nausea may present transitory or persistent gastric dysrhythmias.
对9名健康志愿者以及43名患有各种已知与胃运动障碍相关临床病症的患者进行了皮肤胃电图检查，这些病症包括：24例功能性消化不良、9例长期糖尿病、5例近期恶心/呕吐、3例幽门狭窄、1例迷走神经切断术后胃轻瘫以及1例特发性胃扩张和无力。在餐前1小时和进食后1小时记录胃电图信号。使用运行频谱频率分析确定胃电图主导频率和功率，并在伪三维图形中评估胃电图的时间进程。胃电图主导频率分为四个频段：1. 胃动过缓（0 - 2.4次/分钟）；2. 正常（2.4 - 3.9次/分钟）；3. 胃动过速（4.0 - 9.9次/分钟）；4. 十二指肠呼吸波（10.0 - 15.0次/分钟）。确定主导胃电图功率在这四个频段中的百分比。如果功能性消化不良在超过65%的时间内正常，则认为胃电图正常。胃电图正常（主导频率在3次/分钟范围内且> 65%）的情况如下：9名健康志愿者中的9名、3例幽门狭窄中的3例、5例恶心/呕吐中的4例、9例糖尿病中的3例、24例功能性消化不良中的13例。胃节律失常出现在超过35%胃电图记录中的情况如下：5例恶心/呕吐中的1例、24例功能性消化不良中的11例、9例糖尿病中的6例、1例迷走神经切断术后胃轻瘫中的1例、1例胃扩张和无力中的1例。持续性胃动过速（> 10%）出现在以下情况中：1例胃扩张和无力（胃电图显示90%）、1例迷走神经切断术后胃轻瘫、5例恶心/呕吐中的1例、9例糖尿病中的6例、24例功能性消化不良中的6例。得出的结论是，胃电图是一种无创、耐受性良好、记录胃肌电活动和胃节律失常的可靠方法。患有胃运动障碍、慢性消化不良症状或急性恶心的患者可能会出现短暂或持续性胃节律失常。
