Elies W, Zeumer H, Hacke W, Buchner H
Laryngol Rhinol Otol (Stuttg). 1985 Apr;64(4):202-5.
Ectopy of the internal carotid artery involving the middle ear occurs only rarely. In this case, middle ear surgery will almost always result in severe haemorrhage. After package of the external auditory canal and the epipharynx, immediate closure or ligation of the internal carotid artery is mandatory. The authors describe the interventional neuroradiological treatment as an alternative way to the known neurosurgical methods like cervical and intracranial ligation of the artery. Intravasal blocking of the leakage was done by using a detachable balloon filled with contrast medium. During this procedure cortical evoked potentials were measured showing no decrease of the homolateral haemispheric blood flow. Although this procedure cannot maintain the continuity of the internal carotid artery, it preserves a maximum of collateral vessels. The cortical evoked potentials simultaneously show the brain function during blockage of the artery.
颈内动脉异位累及中耳的情况极为罕见。在此种情况下，中耳手术几乎总会导致严重出血。对外耳道和咽上部进行包裹后，必须立即对颈内动脉进行结扎或闭塞。作者介绍了介入神经放射治疗，作为一种不同于诸如颈段和颅内动脉结扎等已知神经外科方法的替代方式。通过使用充满造影剂的可脱卸球囊对血管内的漏口进行封堵。在此过程中测量皮质诱发电位，结果显示同侧半球血流量未减少。虽然此方法无法维持颈内动脉的连续性，但能最大程度保留侧支血管。皮质诱发电位同时显示了动脉闭塞期间的脑功能。
