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目的:探讨经口圈左下角至左咽峡通过口腔在胃镜插入中的作用.方法:对5185例胃镜受检者以口圈左下角为支点进行插镜,经左侧口腔至左咽峡通过口腔进入咽部,观察此过程中受检者的痛苦程度、镜身的稳定性、左咽峡显露情况、左咽峡通过成功率、至咽部后镜端对向左侧梨状窝的比率.结果:受检者口腔插入过程中多无明显不适,局部黏膜无明显损伤.操作者持镜不需向上抬镜,比较省力,镜身稳定性好;左咽峡显露有效率91%;通过成功率91%;通过口腔至咽部后镜端绝大多数对向左侧梨状窝,达96.8%,可顺利进入食管.结论:经口圈左下角至左咽峡通过口腔进入咽部安全可靠,易稳定自然插向左侧梨状窝,便于进入食管.
Objective: To explore the role of the lower left corner of the mouth ring to the left pharyngeal gorge through the oral cavity in the operation of gastroscope.Methods: 5185 cases of endoscopy were performed with the lower left corner of the mouth ring as the fulcrum and through the left oral cavity to the left pharyngeal gorge Oral into the pharynx to observe the extent of the pain of the subjects in this process, the stability of the mirror body, the left pharyngeal gorge revealed the situation, the left pharyngeal gorge success rate, to the posterior pharyngeal posterior pyramid litter ratio Results: There was no obvious discomfort in the process of oral insertion and the local mucosa had no obvious injury.The operator did not need to lift the mirror with the mirror, which saved labor and the stability of the mirror body was good. The effective rate of the left pharyngeal gorge was 91% The success rate of 91%; through the mouth to the pharyngeal mirror most of the left side of the pear-shaped litter, reaching 96.8%, can successfully enter the esophagus.Conclusion: The lower left corner of the mouth to the left pharyngeal gap through the mouth into the pharynx safety Reliable, easy to stabilize the natural insertion of pear-shaped nest on the left, easy to enter the esophagus.