CSF Circulation and Congenital Hydrocephalus

J Gordon Millichap
1997 Pediatric Neurology Briefs  
of these congenital EOM fibrosis syndromes is more diffuse than previously recognized and extends beyond the extraocular muscles and involves also the cranial nerves and brain stem. CSF CIRCULATION AND CONGENITAL HYDROCEPHALUS A new model of the cerebrospinal fluid (CSF) circulation, involving brain capillaries as the main site of CSF absorption, is proposed from the . In communicating hydrocephalus, a decrease of CSF flow through the foramen magnum demonstrated by MRI is explained by
more » ... lained by restricted expansion of the intracranial arteries. In the new classification, communicating hydrocephalus is called "restricted arterial pulsation (RAP) hydrocephalus," a primary hemodynamic disturbance, caused by any process that decreases compliance of arteries, eg ectasia, arteritis, spasm. In obstructive hydrocephalus, ventricular dilatation causes compression of cortical veins, a secondary hemodynamic disturbance called "venous
doi:10.15844/pedneurbriefs-11-3-11 fatcat:a6hjxk3ihrd7laqgpgwmzhnmdi