摘要: Object. Patients who present with an intraparenchymal hematoma associated a ruptured aneurysm usually require urgent clot evacuation and obliteration. The impact of the presence on outcome has been poorly characterized. authors report 460 patients had dense subarachnoid hemorrhage (SAH) (Fisher Grades 3 4) without hematoma. Methods. Of 959 consecutive presented SAH, Fisher Grade 4 SAH were analyzed divided into two groups: those (Group 1) 2) presenting Hunt Hess grade 6-month outcomes groups compared. patients, 116 (25%) hematomas admission grades worse in Group 1 compared 2. Outcome scores for 2; however, when comparing 2 within same initial score, there was no statistical difference outcome. Conclusions. Intraparenchymal association does not differ significantly from hematomas. We therefore recommend aggressive