Marcondes J, Aversa A, Peçanha M, Domingues F, Nascimento F, André C, Freitas G, Azevedo F, Exposito M
Serviço de Neurocirurgia, The Neurovascular Group, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
Arq Neuropsiquiatr. 2001 Sep;59(3-B):797-801. doi: 10.1590/s0004-282x2001000500027.
Therapeutic occlusion of the internal carotid artery is the main option for the treatment of the symptomatic intracavernous internal carotid artery aneurysms, but the issue of the best way of doing the balloon test occlusion (BTO) regarding prediction of future ischemic events remains debatable. Single photon emission computerized tomography (SPECT) has been offered as one of the best option of monitoring regional cerebral blood flow (rCBF) during the BTO, where severe asymmetry is predictive of delayed ischemia. We describe a case of important SPECT asymmetry during BTO clinically negative and its complete reversal with carotid occlusion after extra-intracranial bypass with high flow safenous vein bypass between the cervical carotid artery and the middle cerebral artery.
颈内动脉治疗性闭塞是治疗有症状的海绵窦段颈内动脉动脉瘤的主要选择，但关于预测未来缺血事件的最佳球囊试验闭塞（BTO）方法仍存在争议。单光子发射计算机断层扫描（SPECT）已被认为是BTO期间监测局部脑血流（rCBF）的最佳选择之一，其中严重不对称预示着延迟性缺血。我们描述了一例在BTO期间SPECT出现重要不对称但临床无异常的病例，以及在颈外动脉与大脑中动脉之间行高流量隐静脉搭桥的颅内外搭桥术后颈动脉闭塞后该不对称完全逆转的情况。
