[Current diagnostic methods in normotensive hydrocephalus].

Based on literature of the last 30 years we present the current view concerning diagnosis of the communicating hydrocephalus. Till now various methods of the assessment of hydrocephalus have been used in order to select patients for shunt treatment. No single factor, considered apart from the other diagnostic criteria, is sufficient to undertake the decision of shunting. According to current opinion the lumbar infusion test is the most valuable in the assessment of hydrocephalus, supporting us with the data of pressure-volume relations in patient. Based on our own experience the infusion test is not only useful in the preoperative investigation, but also for the assessment of proper shunt function.