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Rates of complications requiring emergent neurosurgical intervention according to per-procedure analysis
Procedure No. Complication (%) Neurosurgical Procedure
Ruptured intracranial aneurysm embolization 134 2 (1.50%) Immediate (n = 2), EVD, adjunctive (n = 0)
Unruptured intracranial aneurysms embolization 98 2 (1.02%) Immediate (n = 1), EVD adjunctive (n = 1) EVD plus DC
Intracranial angioplasty/stent placement 92 1 (2.17%) Immediate (n = 0), EVD adjunctive (n = 2) EVD
Acute ischemic stroke treatment 165 1 (0.60%) Immediate (n = 0), adjunctive (n = 1) EVD
AVM embolization 34 1 (2.94%) Immediate (n = 0), adjunctive (n = 1) DC
CAS (symptomatic) 117 0 NA
CAS (asymptomatic) 36 0 NA
Endovascular treatment of vasospasm related to SAH 209 0 NA
Cerebral venous sinus procedures 18 0 NA
Dural arteriovenous fistula 9 0 NA
Tumor embolization (intracranial) 21 0 NA
Note:—CAS indicates carotid angioplasty and stent placement; DC, decompression craniectomy with hematoma evacuation; NA, not applicable.