AIM To assess the feasibility and safety of a novel enteroscope,negative-pressure suction endoscope in examining the small intestine of a porcine model.METHODS In vitro experiments in small intestinal loops from 20pig...AIM To assess the feasibility and safety of a novel enteroscope,negative-pressure suction endoscope in examining the small intestine of a porcine model.METHODS In vitro experiments in small intestinal loops from 20pigs and in vivo experiments in 20 living pigs were conducted.RESULTS In in vitro experiments,a negative pressure of>0.06MPa was necessary for optimal visualization of the intestine,and this pressure did not cause gross or histological damage to the mucosa.For satisfactory examination of the small intestine in vivo,higher negative pressure(>1.00 MPa)was required.Despite this higher pressure,the small intestine did not show any gross or microscopic damage in the suctioned areas.The average time of examination in the living animals was 60±7.67 min.The animals did not experience any apparent ill effects from the procedure.CONCLUSION Small intestine endoscope was safely performed within a reasonable time period and enabled complete visualization of the intestine in most cases.展开更多
[目的]观察仁术健脾理气颗粒对阿托品致胃肠动力障碍大鼠胃肠运动的影响。[方法]SD大鼠72只,随机分为正常组、模型组、仁术健脾理气颗粒高、中、低剂量组、吗丁啉组,每组各12只。各组大鼠予生理盐水或相应剂量药物10 m L/kg灌胃,持续5 ...[目的]观察仁术健脾理气颗粒对阿托品致胃肠动力障碍大鼠胃肠运动的影响。[方法]SD大鼠72只,随机分为正常组、模型组、仁术健脾理气颗粒高、中、低剂量组、吗丁啉组,每组各12只。各组大鼠予生理盐水或相应剂量药物10 m L/kg灌胃,持续5 d。末次给药20 min后正常组大鼠予腹腔注射生理盐水,其余各组均予腹腔注射硫酸阿托品注射液(2 mg/kg),20 min后以半固体营养糊灌胃法检测各组大鼠胃残留率和小肠推进率。[结果]与模型组相比,仁术健脾理气颗粒各剂量组和吗丁啉组胃残留率均显著降低(P<0.05,P<0.01),小肠推进率显著升高(P<0.01)。[结论]仁术健脾理气颗粒可改善胃肠动力障碍大鼠胃肠运动功能。展开更多
文摘AIM To assess the feasibility and safety of a novel enteroscope,negative-pressure suction endoscope in examining the small intestine of a porcine model.METHODS In vitro experiments in small intestinal loops from 20pigs and in vivo experiments in 20 living pigs were conducted.RESULTS In in vitro experiments,a negative pressure of>0.06MPa was necessary for optimal visualization of the intestine,and this pressure did not cause gross or histological damage to the mucosa.For satisfactory examination of the small intestine in vivo,higher negative pressure(>1.00 MPa)was required.Despite this higher pressure,the small intestine did not show any gross or microscopic damage in the suctioned areas.The average time of examination in the living animals was 60±7.67 min.The animals did not experience any apparent ill effects from the procedure.CONCLUSION Small intestine endoscope was safely performed within a reasonable time period and enabled complete visualization of the intestine in most cases.
