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Study of electroacupuncture at Zusanli point on regulating function of lower esophageal sphincter in cats with esophagitis induced by hydrochloric acid dripping

Zhang Xiaoyan1,Xie Pengyan2,Wang Huahong2,Liu Jianxiang2,Liu Binbin2,Mu Xiangdong2(1.Air Force General Hospital of PLA,Beijing 100142,China;2.The First Hospital of Peking University,Beijing 100034,China)  
Objective It is to study the influence of electroacupuncture(EA) at Zusanli point on esophageal dynamia of cats with esophagitis induced by ectogenous acid and to approach the relationship between Zusanli point and esophageal motility regulation.Methods After endoscope examination,32 cats were confirmed as healthy ones without esophagitis.All experimental cats were randomly divided into healthy group and esophagitis group.Esophagitis model was established with hydrochloric acid dripping.The esophagitis group was graded with esophagitis endoscope diagnostic code.The lower esophageal sphincter pressure(LESP) was measured and recorded with E-7-1-1-1-2-5-5-5 type 8 Channel Fine Infusion Piezometric Tube(Canada) and UPS-2020 type Esophageal Pressure Measurement System(Netherlands).Results In esophagitis group(2 case of grade I,8 cases of grade II and 6 cases of grade III esophagitis),the LESP increased from(8.25±5.75) mmHg to(10.88±6.42) mmHg(P=0.07) during EA and reached(16.50±8.12) mmHg(P0.05) after EA.There was no significant difference between the two groups on the scale of EA LESP pressure rising(P=0.12).The degrees of pressure rising of mild and moderate esophagitis cases were both higher than that of severe esophagitis cases in esophagitis group varied.Conclusion EA on Zusanli point of both healthy and esophagitis cats can cause obvious LESP rising and lead to wholesome regulation on LESP.The degree of pressure rising is varied in different degree esophagitis and will lead to different curative effect.However,the mechanism remains unclear.
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