Abstract：
Dural arteriovenous fistulas (dAVFs) at the superior petrosal sinus are a rare but important subtype that pose a high risk of mortality and morbidity. Treatment for these lesions can be challenging with stand-alone endovascular methods.
We describe our \"in-out-in\" technique for disconnecting dAVFs at the superior petrosal sinus, which includes definitive sacrifice of the superior petrosal sinus and the transverse sigmoid sinus, if involved. This method achieves complete fistula obliteration and minimizes recurrence risk with new arterial feeders.
The in-out-in technique is a safe and effective approach for the treatment of dAVFs involving the superior petrosal sinus.
We describe our \"in-out-in\" technique for disconnecting dAVFs at the superior petrosal sinus, which includes definitive sacrifice of the superior petrosal sinus and the transverse sigmoid sinus, if involved. This method achieves complete fistula obliteration and minimizes recurrence risk with new arterial feeders.
The in-out-in technique is a safe and effective approach for the treatment of dAVFs involving the superior petrosal sinus.
摘要：
背景：岩上窦硬脑膜动静脉瘘（dAVFs）是一种罕见但重要的亚型，具有很高的死亡率和发病率风险。使用独立的血管内方法对这些病变的治疗可能具有挑战性。
方法：我们描述了我们的“in-out-in”技术，用于断开上岩窦的dAVF，包括明确处死岩上窦和乙状窦,如果涉及。该方法实现了完整的瘘管闭塞，并通过新的动脉喂食器将复发风险降至最低。
结论：in-out-in技术是治疗累及上岩窦的dAVF的一种安全有效的方法。
方法：我们描述了我们的“in-out-in”技术，用于断开上岩窦的dAVF，包括明确处死岩上窦和乙状窦,如果涉及。该方法实现了完整的瘘管闭塞，并通过新的动脉喂食器将复发风险降至最低。
结论：in-out-in技术是治疗累及上岩窦的dAVF的一种安全有效的方法。
