Venous Thrombectomy Using EmboTrap III in Superior Sagittal Sinus Case Report

Introduction Neurointerventional procedures for Cerebral Venous Thrombosis (CVT) are considered in patients with clinical deterioration or progression of venous infarction/intracerebral hemorrhage despite anticoagulation or major contraindications to anticoagulation. The EmboTrap III revascularization device commonly used for acute ischemic stroke is a dual‐layer segmented stent retriever designed to entrap a broad range of clot compositions and stay apposed to the vessel wall during retrieval. This case illustrates the safety and broadens the application of EmboTrap III for venous thrombectomy. Case Description An 87‐year‐old female with a medical history of Diabetes Mellitus Type 2, Hyperlipidemia, Hypertension, Dementia, and seizures presented with two episodes of generalized tonic‐clonic seizures 2 to 3 days prior to admission and left upper and lower extremity weakness noted on the day of admission. Computed Tomography (CT) head revealed right posterior parasagittal hemorrhage. CT venography (CTV) showed a large filling defect throughout the Superior Sagittal Sinus (SSS) with extension into the bilateral transverse sinuses (TS), sigmoid sinuses (SS), and right internal jugular vein (IJV) consistent with CVT and a moderate‐sized region of venous infarction within the right superior fronto/posterior cingulate gyrus. The EmboTrap III stent retriever, combined with cyclical aspiration, significantly reduced clot burden and restored venous drainage through the SSS. Balloon angioplasty of the bilateral SS and TS allowed for the creation of a channel in the sigmoid and transverse sinuses to achieve optimal catheter access to the SSS and venous drainage. Conclusion The combination of EmboTrap III stent retriever and cereglide 71 aspiration allowed for the safe, complete recanalization of the SSS. While the EmboTrap III is widely used for arterial thrombectomy, its application in venous thrombectomy has not been extensively reported. To our knowledge, this is the first documented case of SSS venous thrombectomy using the EmboTrap III and cereglide 71 aspiration catheter.