患者女,68岁。因进食粘糕时突然咽部疼痛、不能下咽3小时于1999年2月25日急诊来院。既往体健,查体:神志清,痛苦貌,全口义齿,咽无红肿,心肺正常,肝脾未及,行X线钡透,见食管上段相当于第一胸椎水平处钡剂分流,加服钡棉后勾挂存留,考虑食管上段异物。入内镜室后以清水洗漱口腔及咽部钡剂,取左侧卧位,含服2%利多卡因液体局部粘膜表面麻醉。以 Female patient, 68 years old. Due to sudden pharyngeal pain due to eating sticky cakes, can not swallow 3 hours in February 25, 1999 emergency room. Past physical health, physical examination: clear mind, painful appearance, complete denture, swollen pharynx, normal heart and lung, liver and spleen not, line X-barium see the upper esophagus is equivalent to the first thoracic level barium shunt, plus Observe barium cotton hook retention, consider the upper esophagus foreign body. Into the endoscopy room with water to clean mouth and pharynx barium, take the left lateral position, containing 2% lidocaine liquid local mucosal surface anesthesia. To