[Some methods of prevention and replacement of blood loss during surgical treatment of meningiomas of the brain].

To control hemodynamic disturbances during removal of cerebral meningiomas a successful application finds a method of preliminary embolism of afferent vessels of the newgrowth alimenting it from the external carotid system with polystyrene emboli and of direct blood transfusion. The preliminary embolism of vessels belonging to the external carotid system and feeding the tumour was effected in 12 patients. In 18 other patients, operated upon in connection with brain meningiomas, 44 direct blood transfusion were practiced.