title: Bone cement used as an embolic agent for active bleeding in vertebroplasty of metastatic lesions.
abstract: We treated two cases of bleeding by injecting bone cement into tumor-feeding vessels of metastatic hypervascular tumors during a percutaneous vertebroplasty (PV) procedure. When the inner needle was pulled out after puncture of the metastatic vertebral tumor, active arterial bleeding from the outer needle cannula was noticed. Bleeding was not stopped by injection of Gelfoam particles through the cannula. Thus, bone cement was injected, which filled the tumor-feeding vessels, and bleeding stopped. Skin rash and high fever occurred 2-3 hours after the PV procedure, probably due to allergic reaction and massive tumor necrosis. To decrease the risk of active bleeding during PV for hypervascular bone metastases, arterial embolization of the feeding arteries should be performed 1 or 2 days prior to PV. If active bleeding occurs through the outer needle when performing PV, injection of bone cement after confirmation of bleeding from the tumor feeding vessels by vertebrography is effective.
authors.affiliation: Department of Radiology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Baba
authors.forename: S
authors.initials: S
authors.lastname: Hayashi
authors.forename: K
authors.initials: K
authors.lastname: Ueno
authors.forename: M
authors.initials: M
authors.lastname: Nakajo
mesh_terms: D001843:Bone Cements / Q000627:therapeutic use*; D003287:Contrast Media; D004621:Embolization, Therapeutic / Q000379:methods*; D005260:Female; D006470:Hemorrhage / Q000209:etiology* / Q000628:therapy*; D006801:Humans; D008159:Lumbar Vertebrae; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D011677:Punctures / Q000009:adverse effects; D015641:Radiography, Interventional; D013125:Spinal Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging / Q000556:secondary; D014057:Tomography, X-Ray Computed
chemical_list: D001843:Bone Cements; D003287:Contrast Media