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CO_2气腹对大鼠胃肠肌电作用的实验研究 被引量:5

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摘要 目的:研究CO_2气腹对胃肠肌电活动的影响。方法:采用电生理方法,观察CO_2气腹不同压力、不同持续时间大鼠胃肠消化间期综合肌电(IMC)各时相变化规律,统计单位时间内胃、十二指肠及回肠肌电快波数及气腹前后肌电决波数变化率。结果:正常大鼠胃肠消化间期常出现IMC Ⅲ时相,但缺乏IMC Ⅳ时相与Ⅱ时相。CO_2气腹后大鼠胃肠IMC Ⅲ时相极少出现。随着气腹持续时间的延长及气腹压力的增高,大鼠胃、十二指肠及回肠肌电单位时间内快波数逐渐减少。气腹持续1h后,高压组(气腹压2.67 kPa)的胃、十二指肠及回肠肌电快波数变化率显著大于对照组。气腹持续2h后,低压组(气腹压1.33 kPa)、中压组(气腹压2.0 kPa)的胃、十二指肠及回肠肌电快波数变化率显著大于对照组。结论:CO_2气腹可抑制胃肠肌电活动,并导致胃肠肌电活动节律紊乱。
出处 《世界华人消化杂志》 CAS 2003年第10期1652-1653,共2页 World Chinese Journal of Digestology
基金 国家自然科学基金 No.30270406 中国博士后科学研究基金 No.中博基2001-14
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