A member asked:

Can a opening pressure of 20 indicate iih? can chiari blocking csf flow affect the opening pressure?

A doctor has provided 1 answer
Dr. Ilene Ruhoy answered

Specializes in Neurology

Likely no and yes: 20 cmH2O (>25 is considered elevated) is the upper limit of normal for most. And impaired CSF flow can affect the OP.

Answered 4/16/2017

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