Table 1.

Clinical status of hemorrhagic stroke after different types of spine surgeries.

Surgery types	Clinical manifestations	CT appearance	Brain parenchyma hemorrhage location	Treatments	Results	Total case
Cervical laminectomy	10 cases have a serious headache, 1 case has aphasia, and 2 cases have limb motor dysfunction	3 cases show subarachnoid hemorrhage, and 8 cases show brain parenchyma hemorrhage	4 cases locate unilateral cerebellar hemisphere, 3 cases locate unilateral temporal lobe, and 1 case locates bilateral cerebellar hemisphere	8 cases under conservative treatments, 2 cases under dural tear repairing, and 1 case under decompressive craniectomy	9 cases completely recover with no neurologic defect, 1 case recovers with lower limbs spasticity, and 1 case died	11
Lumbar laminectomy	17 cases have headache and nausea, 6 cases have consciousness disturbance, 3 cases have limb motor dysfunction, and 1 has gait ataxia	4 cases show subarachnoid hemorrhage, 12 cases show brain parenchyma hemorrhage, and 1 case shows both of them	8 cases locate unilateral cerebellar hemisphere, 2 cases locate cerebellar vermis, 1 case locates right temporal lobe, and 1 case locates parietooccipital lobes	11 cases under conservative treatments, 4 cases under dural tear repairing, 2 cases under hemorrhage evacuation, and 2 cases under decompressive craniectomy	15 cases completely recover with no neurologic defect, 2 cases died, 1 case has left foot drop and diplopia, and 1 case has cognitive deficit	19
Lumbar spinal fusion	All cases have headache and nausea, 2 cases have dysarthria, 1 case has a speech deficit, and 1 case has consciousness disturbance	1 case shows subarachnoid hemorrhage, and 7 cases show brain parenchyma hemorrhage, and 2 cases show both of them	6 cases locate unilateral cerebellar hemisphere, 1 case locates bilateral cerebellar hemisphere, and 2 cases locate unilateral occipital lobe	7 cases under conservative treatments, 2 cases under dural tear repairing, and 1 case under hematoma evacuation	8 cases completely recover with no neurologic defect, 1 case has speech deficit, and 1 case died	10
Tumor resection	All cases have headache, and 1 has dizziness and vomiting	2 cases show cerebellar hemorrhage, and 1 case shows cerebral hemisphere hemorrhage	2 cases locate unilateral cerebellar hemisphere, and 1 case locates left temporooccipital cortex	All cases under conservative treatments	2 cases completely recover, and 1 case has a slight ataxia	3
Harington rod placement	Headache and vomiting	Subarachnoid hemorrhage and cerebellum hemorrhage	Right cerebellar hemispheres, right ventricle, and subarachnoid spaces	Suboccipital craniotomy	Completely recovered	1