Intracranial aneurysms remain one of the main cause for non-traumatic subarahnoid hemorrhage (SAH) and drive up to 80-85% of all intracranial hemorrhages. The treatment outcomes among patients with SAH remains poor, with population-based mortality rates 45% and significant morbidity among survivors. The severity of the patient's condition and prognosis in the pre-and postoperative periods depends on volume and localization of intracranial hemorrhages, as well as development of cerebral vasospasm with following ischemia, which represents the leading cause of death and disability in patients who survives...

We compared TCD and CT data of 84 patients with ruptured cerebral aneurisms at admission, before and after surgery which were treated in our Institute during the period from 2009 till 2010. The patients were divided into 3 groups according to CT data: I Group – ischemic changes were identified prior and after operation (24 patients); II Group - ischemic changes detected only in the postoperative period (48 patients); III group - without ischemic changes according to CT (12 patients). All patients with an acute...

FVs in I group of patients varied from 100 cm/s to 333см/s (mean FVs 203,8 cm/s). The minimum FVs in this group corresponds to ischemic lesion volume of up to 7сm3 (by CT data), but maximum FVs – to ischemic volume up to 411cm3. In the second group FVs varied from 89cm/s to 357 cm/s, and minimum values consistent with ischemia 2сm3, maximum – with ischemia 714сm3. FVs in the third group of patients ranged from 120cm/s up to 200 cm/s. The time difference between...

FVs rising is early predictor of ischemia development vizualized by CT on average by 3-4 days after TDC at majority of patients with nontraumatic SAH. At the same time there is no significant correlation between absolute values of ischemia volume and FVs rising. Single rise of FVs during 24-48 hours leaded to ischemia increasing in all patients and it can be used as risk factor for patients' recrudescence

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Elena Grigorieva, PhD, Department of Radiology, Scientific Research Institute of Emergency Care named after N.V. Sklifosovsky [email protected] Faat Sharifullin, Professor, Department of Radiology, Scientific Research Institute of Emergency Care named after N.V. Sklifosovsky Olga Zabavskaya, PhD, Department of Radiology, Scientific Research Institute of Emergency Care named after N.V. Sklifosovsky Laila Hamidova, PhD, Department of Radiology, Scientific Research Institute of Emergency Care named after N.V. Sklifosovsky Natalia Polunina, PhD, Department of Neurosurgery, Scientific Research Institute of Emergency Care named after N.V. Sklifosovsky