Priority from the Idiopathic Intracranial Hypertension PSP

UNCERTAINTY: Is IIH caused by increased production or lack of cerebral spinal fluid (CSF) absorption?
Overall ranking	This was one of the 16 questions at the workshop that fell outside of the Top 10.
JLA question ID	0066/19
Explanatory note	Not available for this PSP
Evidence	None identified
Health Research Classification System category	Neurological

Extra information provided by this PSP
Original uncertainty examples	Is the increased CSF pressure caused by an increased production of CSF or a failure to drain it away? ~ Is the increased CSF pressure caused by an increased production of CSF ( increased cardiac output) or a failure to drain it away (venous congestion and reduced CSF absorption)? ~ Is the increased CSF pressure caused by an increased production of CSF or a failure to drain away normal production? ~ What is the relationship between venous outflow and IIH?
Submitted by	See data spreadsheet on JLA website

Extra information provided by this PSP

Original uncertainty examples

Is the increased CSF pressure caused by an increased production of CSF or a failure to drain it away? ~ Is the increased CSF pressure caused by an increased production of CSF ( increased cardiac output) or a failure to drain it away (venous congestion and reduced CSF absorption)? ~ Is the increased CSF pressure caused by an increased production of CSF or a failure to drain away normal production? ~ What is the relationship between venous outflow and IIH?

Submitted by

See data spreadsheet on JLA website

PSP information
PSP unique ID	0066
PSP name	Idiopathic Intracranial Hypertension
Total number of uncertainties identified by this PSP.	48 (To see a full list of all uncertainties identified, please see the detailed spreadsheet held on the JLA website)
Date of priority setting workshop	27 April 2018