CSF Physiology, Pressure & Dynamics
CSF stasis
CSF stasis is a slowing or stagnation of cerebrospinal fluid movement, which can occur where flow is obstructed.
In short: CSF stasis
- It refers to reduced or stagnant CSF movement.
- It can occur upstream of a blockage.
- It is part of how hydrocephalus develops and is assessed.
- Imaging can sometimes detect altered flow.
What it is
CSF stasis is a slowing or stagnation of the normal movement of cerebrospinal fluid. It occurs where the usual flow is impaired, such as in a trapped compartment or upstream of an obstruction.
Understanding CSF stasis
When CSF cannot move normally — for example, in an isolated ventricle, behind a blockage, or in a compartment walled off by scarring — the fluid stagnates. This stasis contributes to the accumulation of fluid and the enlargement of the affected spaces. Imaging, including CSF flow studies, can sometimes reveal where flow is reduced or absent, helping to localize the problem. Reduced flow is part of the picture in obstructive and multiloculated forms of hydrocephalus.
Why it matters
Understanding CSF stasis helps families see how stagnant fluid, where flow is blocked, contributes to the buildup and enlargement seen in hydrocephalus, and how imaging can help identify affected areas.
Common questions
What is CSF stasis?
A slowing or stagnation of CSF movement.
Where does it occur?
Upstream of a blockage or in trapped compartments.
Can it be detected?
Imaging, including flow studies, can sometimes reveal altered flow.
Bottom line
CSF stasis is stagnant cerebrospinal fluid where flow is obstructed, contributing to the buildup seen in hydrocephalus.
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