经口圈左下角至左咽峡通过口腔在胃镜插入中的作用

Insertion of gastroscope through oral cavity from the bottom-left corner of ring to left pharyngeal isthmus

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.

AIM：To assess the clinical effect of insertion of gastroscope through the oral cavity from the bottom-left corner of the ring to the left pharyngeal isthmus.METHODS：A total of 5185 patients were recruited into this study.The gastroscope was placed at the bottom-left corner of the ring and sent forward to the pharynx through the left portion of the oral cavity and then the left pharyngeal isthmus.During the procedure,the patient＇s uncomfortableness,gastroscope stability,exposure rate of the left pharyngeal isthmus,success rate of passing through the left pharyngeal isthmus,and the rate of gastroscope heading toward the left sinus piriformis were observed.RESULTS：The gastroscopist controlled the gastroscope steadily without lifting it up.The effective exposure rate of the left pharyngeal isthmus was 91%,with the success rate of passing through it being 91%.Upon arriving at the pharynx,the gastroscope predominantly（96.8%） headed toward the left sinus piriformis and could be inserted smoothly into the esophagus.CONCLUSION：The route of gastroscopic insertion through the oral cavity from the bottom-left corner of the ring to the left pharyngeal isthmus is safe and reliable,with gastroscope steadily and naturally moving towards the left sinus piriformis.