Perioperative Variables Contributing to the Rupture of Intracranial Aneurysm: An Update

Table 2

Intraoperative variables contributing intracranial aneurysm rupture (coiling only).

	Outcome
Preprocedural
Hypertensive patients	Poor
Angiography in acute phase of SAH
Contrast injection induced hypertension
Intraprocedural factors	Poor
Age younger than 65 years
Very small aneurysms
Wide neck > 4 mm
Type of artery (MCA and posterior circulation)
Previously ruptured aneurysm
Experience of neuroradiologist