[Effect of the level and extent of a brain stem lesion on central hemodynamics in patients with an arterial aneurysm in the acute stage of a subarachnoid hemorrhage].

Using the dye-dilution method (indigo carmine), the authors studied the central hemodynamics in 46 people, including 36 patients with arterial aneurysms in the acute period of subarachnoidal hemorrhage and 10 healthy subjects (a control group). Hyperkinetic, hypokinetic and normokinetic types of the central hemodynamics were specified. The hyperkinetic type was characteristic of patients in a satisfactory state and with injuries at the hypothalamo-diencephalic level. The hypokinetic type is characteristic of grave and very grave patients with injuries at the mesencephalodienchephalic and mesencephalo-bulbar levels and with severe damage to the brain stem.