Brito Neto Rubens Vuono, Bento Ricardo Ferreira, Yasuda Alexandre, Ribas Guilherme Carvalhal, Rodrigues Aldo Junqueira
Faculdade de Medicina, Universidade de São Paulo.
Braz J Otorhinolaryngol. 2005 May-Jun;71(3):282-6. doi: 10.1016/s1808-8694(15)31324-0. Epub 2005 Dec 14.
uditory brainstem implant (ABI) is an option for deaf patients who do not have the whole auditory pathways preserved. The surgery, because of its anatomical and functional complexity, requires specific training of the surgeon in an anatomy lab. : To study the surgical anatomy of the auditory brainstem implant surgery. : Anatomic study. : In the present study, we dissected a fresh cadaver prepared with a dye solution injected into the arteries and intracranial veins. The location of the insertion of the ABI electrode was studied through translabyrinthine access. : The surgical technique used for implanting the brainstem electrode is similar to that used in the removal of vestibular schwannoma. The cochlear nucleus complex, comprising ventral and dorsal cochlear nuclei, is the optimal electrode site. The ventral cochlear nucleus is the principal nucleus for transmission of neural impulses from the 8th pair and form the main ascending route of the cochlear nerve. Neither the ventral nor the dorsal nuclei are visible during surgery and their location depends on the identification of adjacent anatomical structures. : The region for the implantation of the electrode in the auditory brainstem implant presents anatomical landmarks that allow its easy identification during surgery.
听觉脑干植入物（ABI）是听力完全丧失患者的一种选择。由于该手术在解剖学和功能上的复杂性，需要外科医生在解剖实验室进行专门培训。目的：研究听觉脑干植入手术的外科解剖学。方法：解剖学研究。在本研究中，我们解剖了一具新鲜尸体，该尸体已通过向动脉和颅内静脉注射染料溶液进行了处理。通过经迷路入路研究了ABI电极的插入位置。用于植入脑干电极的手术技术与用于切除前庭神经鞘瘤的技术相似。耳蜗核复合体，包括腹侧和背侧耳蜗核，是最佳的电极植入部位。腹侧耳蜗核是第8对神经传递神经冲动的主要核团，构成耳蜗神经的主要上行通路。在手术过程中，腹侧和背侧核均不可见，其位置取决于对相邻解剖结构的识别。在听觉脑干植入中电极植入区域具有解剖学标志，便于在手术过程中轻松识别。
