[Noninvasive intracranial pressure measurement at the anterior fontanelle in the first days of life].

A continuous registration of intracranial pressure by aplanation-tonometry on the anterior fontanelle was performed in 12 healthy term newborns during the night hours of the first 3 days. The median intracranial pressure of the first day was 4.01 +/- 2.74 cm H2O. There was a slight increase between the first and the second day of life and a significant increase between second and third day up to 5.84 +/- 2.66 cm H2O. In our interpretation this result is a sign for the active reconfiguration of the skull by increasing intracranial pressure, which may be a consequence of changing tonus of cerebral vessels.