There was no difference in complication between two groups in intracerebral rebleeding (control: 11, 1%; interventional group: 5, 7%, p > 0.05), catheter-induced hemorrhage (control: 2, 2%; interventional group: 5, 7%, p > 0.05), catheter occlusion (control: 17, 8%; interventional group: 5, 7%, p > 0.05), ventriculitis (control: 8, 9%; interventional group: 8, 6%, p > 0.05) chronic hydrocephalus (control: 0%; interventional group: 8, 6%, p > 0.05).