[The complementation test with feedback. Preliminary assessment of the test and comparison with a test using a continuous infusion rate].

The complementation test with feedback is described as a method for the assessment of disturbances of volume-pressure compensation. The method is characterized by changing infusion rate and the value of this rate depends on the value of cerebrospinal fluid pressure rise in the test. The infusion is stopped when the relative pressure rise reaches 10 mm Hg.

[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.

Analysis of CSF dynamics by computerized pressure-elastance resorption test in hydrocephalic children. Indications for surgery.

Since 1982, 23 hydrocephalic children have been studied for compensatory mechanisms of the cerebrospinal fluid system. The authors describe the method and results of a computerized pressure-elastance resorption test (CPERT), a spinal steady-state infusion test, in hydrocephalic children. Computerized analysis of the P/V and AMP/P curve provides valuable data that precisely describe the degree of disturbances of CSF dynamics.