Waldhausen J H, Shaffrey M E, Skenderis B S, Jones R S, Schirmer B D
Department of Surgery, University of Virginia, Health Sciences Center, Charlottesville 22908.
Ann Surg. 1990 Jun;211(6):777-84; discussion 785. doi: 10.1097/00000658-199006000-00018.
The objective of this study was to define the patterns of myoelectric activity that occur throughout the gastrointestinal tract during normal recovery from laparotomy. Electrodes were placed on the stomach, jejunum, and transverse colon of 44 patients undergoing laparotomy. Basal electric rhythms in all areas showed no changes in frequency after operation (up to 1 month). Gastric spike wave activity showed a gradient of increasing activity from fundus to antrum. Antral spike activity was unchanged during the study. Jejunal spike activity was present in the earliest recordings and occurred in 45.9% +/- 3.5% to 59.9% +/- 5.5% of slow waves. Recovery of normal colon discrete and continuous electric response activity occurred on postoperative day 5.9 +/- 1.5. Bowel sounds returned on day 2.4 +/- 0.5 and passage of flatus and stool occurred on day 5.1 +/- 0.2. The myoelectric parameters measured are not absolutely predictive of uneventful recovery from postoperative ileus but they are, as a group, more informative than any currently available clinical criteria.
本研究的目的是确定剖腹手术后正常恢复过程中整个胃肠道出现的肌电活动模式。将电极置于44例接受剖腹手术患者的胃、空肠和横结肠上。所有区域的基础电节律在术后（长达1个月）频率无变化。胃尖峰波活动显示出从胃底到胃窦活动增加的梯度。在研究期间胃窦尖峰活动未改变。空肠尖峰活动在最早记录时就存在，出现在45.9%±3.5%至59.9%±5.5%的慢波中。术后5.9±1.5天恢复正常结肠离散和连续电反应活动。肠鸣音在2.4±0.5天恢复，排气和排便在5.1±0.2天出现。所测量的肌电参数并非术后肠梗阻顺利恢复的绝对预测指标，但作为一个整体，它们比任何目前可用的临床标准提供的信息更多。
