To investigate the therapeutic value of interventional embolization on feeding artery in intracranial hypervascular tumors.

Forty-five patients with intracranial hypervascular tumors, admitted to and accepted interventional embolization of the feeding artery before craniotomy in Department of Neurosurgery, Huashan Hospital Affiliated to Fudan University from March 2019 to August 2022, were chosen; a retrospective analysis was performed on the clinical data of these patients. The imaging characteristics, pathological types, preoperative embolization indications, embolization effects and embolism-related complications were summarized to evaluate the safety and effecacy of preoperative interventional embolization.

Among the 45 patients, 21 patients had hemangioblastomas, 15 had meningiomas, 5 had hemangiopericytomas, and 4 had glomus jugular tumors. The technical success rate of interventional embolization was 97.8% (44/45); in this frustrated case, the middle meningeal artery was too circuitous for microcatheter to pass. Among the successful ones, 41 patients used liquid embolism agent onyx and 3 patients applied liquid embolism agent NBCA. Seven, 26 and the rest 11 patients achieved complete embolization, sub-total embolization and partial embolization, respectively. Four patients had embolism-related complications, including 2 with rupture of middle meningeal arteries, 1 with Marathon catheter failed to be pulled out, and 1 with functional glomus jugular tumor having pheochromocytoma crisis; these 4 patients were treated timely without serious complications.

For intracranial hypervascular tumors, preoperative interventional embolization is safe and effective; it is necessary to master embolization indications and select appropriate embolization methods and materials.

Intracranial tumor; Hypervascular tumor; Preoperative embolization; Endovascular treatment