[The sinusoidal infusion test--an additional filling test for evaluating the mechanisms of the volume-pressure compensation in the intracranial cerebrospinal fluid space].

: A diagnostic additional filling test is described which is used for the assessment of the mechanisms of volume-pressure compensation. In the test infusion is used of "physiological" sinusoidal relationship between the infused volume and time. The duration of the test is 10 minutes and it does not require pressure stabilization. On the basis of 23 clinical tests the values were determined of four indices of method "invasiveness" which were compared with analogous indices obtained in the group of tests with stable infusion rate. The obtained results indicate that the sinusoidal test is less invasive and is better tolerated by the patients.