[Cognitive disturbances after the operative treatment of intracranial arterial aneurisms in the acute stage of hemorrhage].

ABSTRACT

To assess the cognitive impairment in patients operated for intracranial arterial aneurisms rupture and specify factors influencing the formation of aneurisms, 93 patients were followed up. Patients were divided into 2 groups by the period of surgery. Methods of operative treatment were compared. Patients underwent the expand neuropsychological testing, clinical and neurological study, CT, angiography, EEG. The control group consisted of 31 healthy volunteers. All patients had mild and moderate cognitive disturbances in the early post-operative period. The follow-up revealed the more complete rehabilitation of cognitive functions in patients operated in the acute stage of hemorrhage. In the remote post-operative period, the frequency of cognitive dysfunction was higher in patients after endovascular surgery comparing to open surgery. Main and additional risk factors of cognitive impairment in different periods of the operative treatment were specified.