Cerebral arteriovenous malformations can be classified into pure pial, mixed dural-pial, and pure dural types. Mixed pial-dural AVMs (DPAVM) are rare and often receive blood supply from dural meningeal arteries, including branches of the internal carotid, external carotid, and vertebral arteries. 1 – 6 DPAVMs, which are usually large and complex, require delicate endovascular and surgical treatment methods. The cure rate is low, and recurrence is very common, leading to high morbidity and mortality. In this case video, we present a case of PDAVM that recurred after initial endovascular onyx embolization, requiring additional endovascular coiling which resulted in obliteration of the DPAVM.

中文翻译：

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球囊辅助掉头技术进入皮质静脉经静脉栓塞治疗混合性硬脑膜-软膜动静脉畸形

脑动静脉畸形可分为纯软脑膜型、硬脑膜-软脑膜混合型和纯硬脑膜型。混合性软脑膜-硬脑膜动静脉畸形（DPAVM）很少见，通常从硬脑膜脑膜动脉接受血液供应，包括颈内动脉、颈外动脉和椎动脉的分支。1 – 6DPAVM 通常较大且复杂，需要精细的血管内和手术治疗方法。治愈率低，复发率高，发病率和死亡率高。在本病例视频中，我们介绍了一个 PDAVM 病例，该病例在初始血管内 Onyx 栓塞后复发，需要额外的血管内弹簧圈栓塞，导致 DPAVM 闭塞。