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在纤维喉镜下，由活检通道插入硬外麻导管，至咽鼓管咽口进行通气、灌药治疗，治疗咽鼓管阻塞所致疾病６０例，效果显著。
In the fiber laryngoscope, by the biopsy channel into the hard epidural catheter to eustachian tube pharyngeal port ventilation, irrigation drug treatment of Eustachian tube disease caused by 60 cases, the effect is significant.