[Fibrinolytic activity of cerebrospinal fluid as an indicator of the risk of repeated ruptures of arterial aneurysms].

The fibrinolytic activity of the cerebrospinal fluid and common venous blood flow was studied in 28 patients with ruptured aneurysms of cerebral arteries. Recurrent hemorrhage from the aneurysm was encountered in 8 of 11 patients with increased fibrinolytic activity of the cerebrospinal fluid but in none of the patients with absence of fibrinolysis in the cerebrospinal fluid. At the same time, intensified fibrinolytic activity was found in the common venous blood flow. It is suggested that the lysis of the clot at the site of the rupture of the aneurysmal sac is due to local fibrinolysis in the cerebrospinal fluid. Arterial spasm was detected in most patients with increased fibrinolysis in the fluid, and the severity of the general condition was graded III-V after Hunt and Hess.