[The assessment of brain stem function in the acute period of aneurysm rupture].

The functional status of the brain stem was assessed by recording evoked stem auditory potentials (ESAP) in 76 patients in the acute period of arterial aneurysm rupture. Abnormalities of ESAP were detected in 39.4% of the patients. The determinant of ESAP disorder in aneurysm rupture is the occlusive-dislocation syndrome caused by intracranial hematoma, more than 50 ml in volume, ventricular tamponade or extensive vascular spasm.