A study on hemostasis parameters in the neurosurgery of cerebral aneurysms.

Background: This prospective study was accomplished with 14 patients, 10 women and 4 men, where some pre-, intra- and immediate postoperative parameters of hemostasis were analyzed and compared to a control group of normal individuals.

Methods: The patients included in this study were admitted to the Hospital das Clinicas at Unicamp in the 1990-1993 period. All the accepted patients have had their latest bleeding at least 30 days before surgery, therefore, after the acute bleeding phase, because in this phase there are alterations in hemostasis.