🔹Large volume of blood in the subarachnoid space from the initial SAH
🔹Poor neurologic status owing to the devastation caused by the initial SAH
🔹Short interval from the initial hemorrhage
🔹Female gender: women rebleed twice as frequently as men
🔹Older age and poor general medical condition
🔹Systemic hypertension: the risk of rebleeding is directly related to the patient's systolic blood pressure
🔹Multiple previous episodes of rebleeding that increase the likelihood of subsequent rupture and death
🔹Presence of either an intracerebral or intraventricular hematoma
🔹Abnormal clotting parameters
🔹Posterior circulation aneurysms
Ref: Philippa Newfield, Audrée A. Bendo, Handbook of Neuroanesthesia, 4th Edition, 2007 Lippincott Williams & Wilkins
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