1. The document discusses the conventional "bulk flow" theory of cerebrospinal fluid (CSF) circulation and its inability to fully explain communicating hydrocephalus. 2. It introduces an alternative theory known as the "pulsation model", which proposes that increased arterial pulsations and breakdown of the "windkessel effect" leads to redistribution of CSF pulsations within the cranium. 3. According to the pulsation model, this redistribution of pulsations causes elevated pressure in the brain capillaries and ventricles, diminished absorption of CSF, and expansion of the ventricles at the expense of the subarachnoid space - explaining the mechanisms of communicating hydrocephalus.

1. Conventional Theory VS HYDROCEPHALUS “Windkessel Effect” Continuous Medical Education, Department of Neurosurgery, Hospital Kuala Lumpur 17 January 2007

8. What Next????

28. Thank You