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The treatment of hypervascularized tumors and AVM's can use a variety of methods: surgical removal of the tumor; technologies such as radiofrequency, laser, cryotherapy, and chemotherapy, depending upon the type of tumor; and embolization. While traditional surgery may be indicated, there may be many situations where surgery is not ideal. Or, as a preface to surgery, the physician may want to reduce the size of the tumor or reduce the amount of blood flow to the tumor. Thus, embolization of the tumor is indicated. Click here for more information on hypervascularized tumors. Embolization is the process of cutting off the blood flow to the tumor, or in
essence, "starving" it of the oxygen it needs to exist and grow. This procedure
typically is performed by an Interventional Radiologist (IR) or
Interventional Neuroradiologist, depending upon the location of the tumor or
malformation who uses X-ray to view the circulatory system leading up to and
surrounding the tumor. The IR makes a small incision and uses a combination of
special catheters and guidewires inside the vessels to locate the tumor. The IR
will then use the catheter to deposit small spheres that block the blood flow to
the tumor. You can use the Society of Interventional Radiologists' Demonstration of a Tumor Embolization Currently, there are a few options as to what the IR will use to block, or embolize, the blood flow to the tumor. In 2000, the FDA approved a product from BioSphere Medical called Embosphere® Microspheres. They are very small, round microspheres that are made of biocompatible materials that have been used inside the body for many years. Embosphere Microspheres have an extensive clinical history, having been used in over 15,000 patients over the past eight years. You may also see our Online Presentation. The technology for EmboGold™ Microspheres is based upon the same technology as Embosphere Microspheres. In 2001, this second generation product was introduced by BioSphere Medical. EmboGold Microspheres are colored for increased visibility during preparation and are packaged for enhanced ease of use. Click here to view a Patient Information Guide. Other materials used to embolize tumors include particles made of polyvinyl alcohol (PVA), gelfoam, or metal coils, the most common being PVA. While PVA has been used for a long time for embolization, the inconsistent particle size and shape can potentially aggregate and block vital distil blood flow to healthy tissue or clog catheters during injection.
Regardless of the embolic agent used, the procedure usually takes one to two hours to complete. Typically patients can go home in 24 hours and be back to normal activities in 4-7 days.
Products Indications Controlled, Targeted Embolization BioSphere Medical's microspheres are precisely calibrated, spherical, hydrophilic, micro-porous beads made of an acrylic co-polymer (trisacryl) which is then cross-linked with gelatin. This proprietary and patented design allows a more complete and targeted occlusion of the blood vessels feeding a hypervascularized tumor or arteriovenous malformation. Furthermore, the hydrophilic surface and spherical shape prevent aggregation within the catheter lumen and in the vasculature, promoting ease and accuracy of delivery. Finally, the elastic properties of the microspheres also allow the temporary deformation of the sphere, which facilitates the passage through small delivery systems.
Preparation and Administration For details on how to Prepare and Administer
EmboGold Microspheres, Click here for a Microcatheter Compatibility Chart Site Map Contact BioSphere Medical · Privacy Statement Patients Physicians Products Indications Company Fibroid Embolization Information Spinal Cord Turmor Information Brain Tumor Treament Information Metastatic Liver Cancer Information Arteriovenous Malformations Information Arterial embolization Information Biosphere Information Chemoembolization Information Embolization Information Embolization fibroids Information Embolization reimbursement Information Embolotherapy Information Embosphere microspheres Information Hypervascularized tumors Information Liver embolization Information Uterine arterial embolization Information Uterine fibroid embolization Information What is embolization Information |
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