Effect of thermal cutaneous stimulation on the gastric motor activity:Study of the mechanism of action
Effect of thermal cutaneous stimulation on the gastric motor activity:Study of the mechanism of action作者机构：Department of Surgery and Experimental Research Faculty of Medicine Cairo University Cairo 11121 Egypt Department of Surgery Faculty of Medicine Menoufia University Shebin El-Kom Egypt
出 版 物：《World Journal of Gastroenterology》 (世界胃肠病学杂志（英文版）)
年 卷 期：2008年第14卷第14期
页 面：2226-2229页
核心收录：
学科分类：1002[医学-临床医学] 100201[医学-内科学(含：心血管病、血液病、呼吸系病、消化系病、内分泌与代谢病、肾病、风湿病、传染病)] 10[医学]
基 金：ACKNOWLEDGMENTS We thank Margot Yehia for his assistance in preparing the manuscript
摘 要：AIM:To investigate the mechanism of action of thermal cutaneous stimulation on the gastric motor inhibition. METHODS:The gastric tone of 33 healthy volunteers (20 men, mean age 36.7 ± 8.4 years) was assessed by a barostat system consisting of a balloon-ended tube connected to a strain gauge and air-injection system. The tube was introduced into the stomach and the balloon was inflated with 300 mL of air. The skin temperature was elevated in increments of 3℃ up to 49℃ and the gastric tone was simultaneously assessed by recording the balloon volume variations expressed as the percentage change from the baseline volume. The test was repeated after separate anesthetization of the skin and stomach with lidocaine and after using normal saline instead of lidocaine. RESULTS:Thermal cutaneous stimulation resulted in a significant decrease of gastric tone 61.2% ± 10.3% of the mean baseline volume. Mean latency was 25.6 ± 1.2 ms. After 20 min of individual anesthetization of the skin and stomach, thermal cutaneous stimulation produced no significant change in gastric tone. CONCLUSION:Decrease in the gastric tone in response to thermal cutaneous stimulation suggests a reflex relationship which was absent on individual anesthetization of the 2 possible arms of the reflex arc:the skin and the stomach. We call this relationship thecutaneo-gastric inhibitory reflex. This reflex may have the potential to serve as an investigative tool in the diagnosis of gastric motor disorders, provided further studies are performed in this respect.
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