Cerebral swelling is a major complication following aneurysmal subarachnoid hemorrhage.This study is a retrospective cohort aimed to predict the extent of brain swelling. Cerebral venous assessment can identify the risk of brain swelling and improve surgical outcomes.

Cerebral swelling is a major complication following aneurysmal subarachnoid hemorrhage (SAH).This study is a retrospective cohort aimed to predict the extent of brain swelling (BS). Cerebral venous assessment can identify the risk of cerebral swelling and improve surgical outcomes. This study is a retrospective cohort analysis. Cerebral venous angiography (CVA) will be adopted and the superficial middle cerebral vein (SMCVs) will be evaluated.

Inclusion Criteria:

patients with anterior communicating aneurysm

Exclusion Criteria:

Hunt-Hess grade I- patients with posterior communicating aneurysm, poor general condition or combined with pregnancy , malignant tumors were excluded.

Patients with an anterior communicating aneurysmal subarachnoid hemorrhage between January 2017 and December 2022 who underwent aneurysm embolization surgery, excluding patients with posterior communicating aneurysm, poor general condition or combined with pregnancy , malignant tumors.