Recording of intracranial pressure and daily drainage in pseudotumor cerebri. A preliminary study.

After long-term recording of intracranial pressure (ICP) in four cases of pseudotumor cerebri, a volumetric rather than a pressure-dependent device was proposed to drain a given amount of cerebrospinal fluid at each maneuver by external finger pressure according to preoperative ICP recordings. Some of the advantages of this method are discussed.