Table 3.

Perioperative variables contributing intracranial aneurysm rupture.

Perioperative variable	Outcome
(1) Preoperative factors	Variable
Age
Female gender
Size (large aneurysm) and location (posterior circulation aneurysm)
Genetic factors/familial factors
Hypertension
Smoking
Ruptured aneurysm	Poor
(2) Intraoperative factors	Poor
Preprocedural factors
Anesthesia related
Factors affecting TMP
Predissection variables
Intraprocedural variables
Predissection variables	Poor
Dissection variables
Coiling versus surgery	Poor/variable
Size and location
Comorbidities
(3) Postoperative factors	Poor
Emergence/extubation related
Surgical dissection/trauma
Incomplete obliteration by coiling or clipping