[Disturbances of CSF circulation, pathophysiologic, clinical, diagnostic and therapeutic aspects].

TL;DRAbstract

Disturbances of CSF circulation arise from the anatomic narrows of the CSF spaces and from the dependence on venous pressure of CSF absorption in the superior sagittal sinus. The author discusses the modern concepts of CSF production and circulation, the causal mechanism for hydrocephalus and the chances of compensating for a rise in CSF pressure by transependymal migration. CSF circulation (CSFc) disturbances can be subdivided into primary processes arising in the internal and external CSF spaces and secondary which are due to distant consequences of intracranial processes via interaction of the blood/CSF volume and parenchyma of the brain within the closed capsule of the skull according to the teaching of Monroe-Kellie. Extra-cranial processes in the neck, the mediastinum and heart are primary CSFc disturbances which-via an increase in intracranial venous pressure-lead to a reduction of CSF absorption. Among the hypotonic CSFc disturbances loss of CSF volume due to fistulae, diagnost

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