Table 1:

The diagnostic criteria for SIH proposed by Headache3 Classification Subcommittee of the International Headache Society

  • Diffuse and/or dull headache that worsens within 15 minutes after sitting or standing, with at least 1 of the following and fulfilling criterion:

    1. Neck stiffness

    2. Tinnitus

    3. Hyperacusia

    4. Photophobia

    5. Nausea

  • At least 1 of the following:

    1. Evidence of low CSF pressure on MR imaging (eg, pachymeningeal enhancement)

    2. Evidence of CSF leakage on conventional myelography, CT myelography, or cisternography

    3. CSF opening pressure <60 mm H2O in sitting position

  • No history of dural puncture or other cause of CSF fistula

  • Headache resolves within 72 hours after epidural blood patching