Case information: 49-year-old male, sudden coma onset, cranial CT confirmed intraventricular hemorrhage ventricular casts, in the local hospital via bilateral extraventricular drainage, intracerebroventricular injection of urokinase, post-operative CT film as follows: 8 days later re-examination of the cranial CT suggests that the bilateral intraventricular hematoma significantly reduced, the third and fourth intraventricular hematoma did not change significantly, with the emergence of cerebral edema patient status is getting heavier, the need for ventilator-assisted The patient’s breathing was stable after surgery, and no ventilator assistance was needed. The film is as follows: Minimally invasive surgery under electronic soft endoscopy was performed to remove the hematoma in the third and fourth ventricles, and the film was rechecked 3 hours after surgery. brought about by secondary brain damage.