Parrish K L, Amedee R G
Dept of Otolaryngology-Head & Neck Surgery, Tulane Medical Center, New Orleans.
J La State Med Soc. 1990 Sep;142(9):9-12.
External auditory canal atresia (EACA) can occur bilaterally as well as unilaterally. Usually there is an accompanying auricular deformity. Surgical intervention in bilateral cases is mandatory to promote normal speech and language development. Unilateral EACA cases often do not receive surgical intervention until the patient is 18 years of age. Preoperative evaluation of the EACA patient requires behavioral audiometry, auditory brain stem evoked response, and a computerized tomographic scan.
外耳道闭锁（EACA）可双侧或单侧发生。通常伴有耳廓畸形。双侧病例必须进行手术干预以促进正常的言语和语言发育。单侧EACA病例通常在患者18岁之前不进行手术干预。EACA患者的术前评估需要进行行为测听、听觉脑干诱发电位和计算机断层扫描。
