Rates of complications requiring emergent neurosurgical intervention according to per-procedure analysis

ProcedureNo.Complication (%)Neurosurgical Procedure
Ruptured intracranial aneurysm embolization1342 (1.50%)Immediate (n = 2), EVD, adjunctive (n = 0)
Unruptured intracranial aneurysms embolization982 (1.02%)Immediate (n = 1), EVD adjunctive (n = 1) EVD plus DC
Intracranial angioplasty/stent placement921 (2.17%)Immediate (n = 0), EVD adjunctive (n = 2) EVD
Acute ischemic stroke treatment1651 (0.60%)Immediate (n = 0), adjunctive (n = 1) EVD
AVM embolization341 (2.94%)Immediate (n = 0), adjunctive (n = 1) DC
CAS (symptomatic)1170NA
CAS (asymptomatic)360NA
Endovascular treatment of vasospasm related to SAH2090NA
Cerebral venous sinus procedures180NA
Dural arteriovenous fistula90NA
Tumor embolization (intracranial)210NA
  • Note:—CAS indicates carotid angioplasty and stent placement; DC, decompression craniectomy with hematoma evacuation; NA, not applicable.