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[Effect of protein-containing cerebrospinal fluid on ventriculo-auricular drainage].

Elevated protein level in liquor still prohibits ventriculo-auricular drainage methods. Spitz-Holter valves and Pudenz-Heyer valves were therefore tried in model tests using plasma-containing fluids. The quantities of flow depending on time were presented on graphs. A considerably reduced flow through the Spitz-Holter valve was observed after brief perfusion already, with tendency to complete occlusion. Similar results were obtained from trials on the Pudenz-Heyer valve.