Embolización endovascular prequirúrgica de tumores cerebrales

Abstract

Hypervascularized tumors generate risk of significant bleeding during the procedure of excess of the tumor mass, which can lead to the hemodynamic decompensation of a patient, complicating the surgical procedure and its evolution. It has been demonstrated that the embolization of a cerebral tumor, prior to surgical resection of the tumor has several advantages in relation to the decrease in bleeding, so that the hemodynamic stability of the patient is assured, it is possible to reduce the surgery time and reduce the amount of blood transfusions. Objective: To prove and to evaluate the risk-benefit of embolization in different types of tumors in relation to postsurgical complications. Materials and Methods: The embolization of different types of brain tumors was performed with a non-adhesive liquid agent comprised of EVOH (Onyx), to then perform the programmed exceresis of the tumor mass, after 7 to 9 days according to controls by tomography. The patients were classified according to age, sex, tumor, amount of bleeding and complications. Tomographic controls were performed to evaluate the progressive evolution of each patient after surgical resection of each type of brain tumor. Results: The pre-surgical embolization must be performed in order to embolize at least 50% of the brain tumor to obtain benefits in the patient. Favorable results were obtained in the surgical time, decreased bleeding during brain tumor resection and there was also significant improvement in the patient's symptoms.