Intracranial pressure (ICP): Difference between revisions

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## ICP & Intracranial vol.
- Brain parenchyma: 1400 ml (80% total, 10% solid, 70% tissue water)
- CBV: 150 ml (10% total)
- CSF: 150 ml (10% total)
- Normal ICP: <10-15 mmHg, varies w/ age, position, straining, & coughing
(tot. ~1700 ml)
=== '''Davson equation''' ===
=== '''Davson equation''' ===
<blockquote>'''ICP = If * Rout - PSS'''</blockquote>
<blockquote>'''ICP = If * Rout - PSS'''</blockquote>

Revision as of 17:52, 12 September 2023

    1. ICP & Intracranial vol.

- Brain parenchyma: 1400 ml (80% total, 10% solid, 70% tissue water) - CBV: 150 ml (10% total) - CSF: 150 ml (10% total) - Normal ICP: <10-15 mmHg, varies w/ age, position, straining, & coughing (tot. ~1700 ml)


Davson equation

ICP = If * Rout - PSS

  • resistance to cerebrospinal fluid outflow (Rout)
  • formation of cerebrospinal fluid (If)
  • sagittal sinus pressure (PSS)