Department of Neurosurgery, Dokkyo Medical University Saitama Medical Center, Japan.
Neurol Neurochir Pol. 2020;54(6):585-588. doi: 10.5603/PJNNS.a2020.0071. Epub 2020 Oct 7.
We retrospectively searched for cases of transvenous embolisation for cavernous sinus dural arteriovenous fistulas.
Twenty-five cases underwent transvenous embolisation via the inferior petrosal sinus (IPS). IPS was probed using a standard 0.035-inch guidewire for microcatheter navigation, which was successful in all cases.
IPS was occluded in 17 cases (68%). Only one case experienced a complication, where the approach was changed to the contralateral side because of internal jugular vein injury. The relationship between the external auditory canal and the IPS route was reviewed in 18 cases using digital angiography (lateral view). The guidewire passed across, above, or below the external auditory canal in 10 (56%), six (33%), and two (11%) cases, respectively.
No previous reports have analysed the relationship between the external auditory canal and the IPS route. We present a safe and successful technique for approaching the cavernous sinus via the IPS.
我们回顾性地搜索了经颈静脉窦（IPS）腔内栓塞治疗海绵窦硬脑膜动静脉瘘的病例。
25 例患者通过 IPS 进行经静脉栓塞治疗。使用标准的 0.035 英寸导丝探测 IPS 以引导微导管进入，所有病例均成功进行。
17 例（68%）IPS 闭塞。只有 1 例出现并发症，因颈内静脉损伤而改为对侧入路。18 例患者使用数字减影血管造影（侧位）检查了外耳道与 IPS 入路之间的关系。10 例（56%）、6 例（33%）和 2 例（11%）患者的导丝分别穿过、跨过或低于外耳道。
目前尚无文献分析外耳道与 IPS 入路之间的关系。我们提出了一种安全有效的经 IPS 途径进入海绵窦的技术。
