title: Analysis of CSF dynamics by computerized pressure-elastance resorption test in hydrocephalic children. Indications for surgery.
abstract: Since 1982, 23 hydrocephalic children have been studied for compensatory mechanisms of the cerebrospinal fluid system. The authors describe the method and results of a computerized pressure-elastance resorption test (CPERT), a spinal steady-state infusion test, in hydrocephalic children. Computerized analysis of the P/V and AMP/P curve provides valuable data that precisely describe the degree of disturbances of CSF dynamics. The following parameters were quantitatively determined: out-flow resistance, opening pressure, elastance, elasticity, reference pressure and optimum (break-point) pressure. It is concluded that the described test allows the differential diagnosis of chronic hydrocephalus in children. The value of optimum pressure (analysis of AMP-P relation) gives precise indications for surgery and the selection of a valve system with adequate opening pressure. In some cases, the CPERT test can be used instead of continuous ICP monitoring.
mesh_terms: D000293:Adolescent; D002552:Cerebral Ventricles / Q000503:physiopathology*; D002555:Cerebrospinal Fluid / Q000502:physiology*; D002557:Cerebrospinal Fluid Shunts; D002648:Child; D002675:Child, Preschool; D003201:Computers; D003616:Dandy-Walker Syndrome / Q000503:physiopathology / Q000601:surgery; D004548:Elasticity; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000503:physiopathology / Q000601:surgery*; D007427:Intracranial Pressure; D008297:Male; D011379:Prognosis