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放射性脑水肿的发生主要与肿瘤位置、肿瘤的体积、照射剂量、血脑屏障的破坏等有关,而与肿瘤性质无关。预防及治疗措施是,对位于脑干、视神经附近、阻塞脑脊液循环通路的肿瘤宜先行手术切除,解除压迫和梗阻;对不能切除或不能彻底切除者,应行小剂量分割照射,并用激素;对有占位效应行经激素等治疗后仍不能缓解的恶性脑水肿及时行内减压术或高压氧治疗。
Radiation brain edema mainly with the tumor location, tumor volume, irradiation dose, the destruction of the blood-brain barrier, etc., and has nothing to do with the nature of the tumor. Prevention and treatment measures are located in the brainstem, near the optic nerve, blocking cerebrospinal fluid circulation pathological tumor should be the first surgical resection, relieve the pressure and obstruction; can not be removed or can not be completely removed, should be divided into small doses of radiation, and with hormones; A placeholder effect through hormone therapy can not be alleviated after malignant cerebral edema timely line decompression or hyperbaric oxygen therapy.