[Rhythmic correlations between regional intracranial blood volume and intracranial pressure within minutes during continuous simultaneous recording in infants].

In infants with severe neurologic illnesses, rhythms found during continuous simultaneous recording of the rICBV and the ICP and their correlation with each other were described and supported by representations of the original curves. There were relations of the rICBV with the cardiac and respiratory rhythmus, with the so-called C- and B-waves, and clinical modes of behaviour. By using different electronic "frequency windows" and different recording speeds, a variety of relations with the clinical behaviour could be established. As a rule, several rhythms occurred at the same time. Problems and possibilities of the use of rhythmic processes for clinical diagnosis were discussed.