Article Figures & Data
Figures
- Fig 1.
Box-and-whisker plots comparing PCSF (cm H2O) with the presence or absence of individual brain imaging signs of SIH.
- Fig 2.
Box-and-whisker plots comparing PCSF (cm H2O) with the presence or absence of various myelographic patterns in SIH.
Tables
Criteria A) Orthostatic headache B) The presence of at least 1 of the following: 1) Low opening pressure (≤60 mm H2O) 2) Sustained improvement of symptoms after epidural blood patching 3) Demonstration of an active spinal CSF leak 4) Cranial MRI changes of intracranial hypotension (eg, brain sagging or pachymeningeal enhancement) C) No recent history of dural puncture D) Not attributable to another disorder Overall Prevalence Concordant Sign and PCSF Discordant Sign and PCSF Sign Absent, PCSF ≤6 Sign Present, PCSF >6 % No./Total % No./Total % No./Total % No./Total Dural enhancement 83 77/93 39 36/93 5 5/93 56 52/93 Brain sagging 61 60/99 55 54/99 9 9/99 36 36/99 Venous distension sign 75 75/99 42 42/99 8 8/99 49 49/99 Leak on myelogram 55 54/99 55 54/99 12 12/99 33 33/99 ↵a Concordance is defined as the presence of the imaging sign when PCSF is low (≤6 cm H2O) or absence of the sign when PCSF is not low.
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