Subdural effusion in the first six months of life.

During the period 1978-1981, among 1280 (0-12 months old) infants suffering from consequences of various pre- and perinatal cerebral lesions, positive neuroradiological changes were found in 148 cases. Of these, 56 proved to be real subdural effusions with elevated ICP and increased protein content. Periodical transfontanellar taps and drainage were effective in 49 cases.