Review Article
Perioperative Variables Contributing to the Rupture of Intracranial Aneurysm: An Update
Table 1
Intraoperative variables contributing intracranial aneurysm rupture.
| | Outcome |
| (1) Preprocedural factors (same for coiling procedures) | | Anesthesia related | Poor | Pain | | Light plane of anesthesia | | Intubation response | | Acute fluctuations in TMP | | High blood pressure (induction, skull pin fixation, and incision) | | Coughing/gagging | | Raised ICP | | Large and rapid bolus mannitol | | Acute hyperventilation | | (2) Intraprocedural factors | Variable | Increased vessel wall fragility (same for coiling procedures) | Poor | Smoking/COPD | | Hyperlipidemia/CAD | | Lower Hunt and Hess grade | | Predissection phase | Poor | (Dural opening and arachnoid opening, hematoma removal, and brain retraction) | | Dissection phase | Variable | Type of artery (PICA, ACA, and PCA) | | Previously ruptured aneurysm | | Surgeon’s experience | |
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