TY - JOUR T1 - Dual microcatheter and coil/balloon pressure cooker technique for transvenous embolization of cerebrospinal fluid-venous fistulas JF - Journal of NeuroInterventional Surgery JO - J NeuroIntervent Surg SP - 614 LP - 614 DO - 10.1136/neurintsurg-2022-019005 VL - 15 IS - 6 AU - Donna Parizadeh AU - Antonio H C Vasconcelos AU - David A Miller AU - Olga P Fermo AU - Thien J Huynh Y1 - 2023/06/01 UR - http://jnis.bmj.com/content/15/6/614.abstract N2 - Cerebrospinal fluid-venous fistula is increasingly recognized as a cause of spontaneous intracranial hypotension.1 Transvenous embolization is emerging as an efficacious minimally invasive treatment.2–4 The procedure aims to embolize paraspinal and foraminal veins draining the fistula; however, complete embolization may be challenging as numerous small venous tributaries at the foraminal venous plexus, including dorsal muscular branches, may serve as additional routes of cerebrospinal fluid egress.5 To ensure curative embolization, we adopted a dual microcatheter pressure cooker technique, previously used for treatment of brain arteriovenous malformations.6 This allows improved control of embolic material reflux and greater chance of complete embolization of the site of the fistula and all potential venous tributaries. Video 1 demonstrates this technique employed in a typical case using Onyx (Medtronic, Minnesota, USA) to embolize a cerebrospinal fluid-venous fistula at the left L1 neural foramen. Video 1 Technical video demonstrating dual-microcatheter and coil/balloon pressure cooker technique. ER -