Abstract
We examined the postoperative changes in fasting gastric myoelectric activity in 11 patients undergoing nongastric surgery (colon surgery) via celiotomy. Recordings were performed on postoperative days (POD) 1, 2, 3, 5, and 7+ (7-35) for 1-1.5 hr after overnight fasting. Patients had placement of bipolar seromuscular recording electrodes on the proximal (N = 9) and distal (N = 11) antrum at the time of surgery. Data were analyzed visually and analysis of variance or tests of proportion were used for statistical analysis. Although there was a trend of decreasing slow wave frequency from POD 1 to 7+ in the proximal and distal antrum, no significant differences were observed in slow wave amplitude or in the percentage of slow waves with spike activity between postoperative day. In a few of the patients, several types of gastric dysrhythmias were infrequently observed. We conclude that certain parameters of fasting gastric myoelectric activity do not change sufficiently following open abdominal surgery to adequately reflect clinical recovery from postoperative ileus.
Published Version
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