Skip to main content

Advertisement

Log in

Spontaneous intracranial hypotension: The syndrome and its complications

  • Published:
Current Treatment Options in Neurology Aims and scope Submit manuscript

Opinion statement

Spontaneous intracranial hypotension (SIH) is a syndrome that was largely unknown until the advent of MRI. The incidence of SIH is estimated at 5 per 100,000, which is half the incidence of subarachnoid hemorrhage. The major feature is a postural headache of acute or subacute onset. This headache is absent or minimal when the patient is lying down and rapidly worsens to great intensity when the patient sits or stands. Other features may include nausea, vomiting, vertigo, tinnitus, and marked exacerbation by Valsalva maneuver. SIH is due to a leak of cerebrospinal fluid from a tear in the dural membrane, which occurs most often at the exit zones where the cervical spinal roots leave the subarachnoid space. Other leak sites may be the vestibular system, the cribriform plate, or the pituitary fossa. If the leak continues, the brain loses buoyancy within the cranial space and sags toward the foramen magnum. This, in turn, may produce subdural hygroma or hematoma, brainstem compression, focal cranial nerve palsies, or cerebellar tonsillar herniation. The initial therapy is generally strict bed rest. If this fails, an epidural blood patch is usually successful in sealing the leak and restoring brain buoyancy. A significant minority of patients require a repeat epidural blood patch. If the blood patch fails, a surgical approach may be needed. Repair of the leak and restoration of brain buoyancy will stop the postural headache and, in most cases, will reverse the complications.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References and Recommended Reading

  1. Schievink WI: Spontaneous spinal cerebrospinal fluid leaks and intracranial hypotension. JAMA 2006, 295:2286–2296.

    Article  PubMed  CAS  Google Scholar 

  2. Mokri B, Piepgras DG, Miller GM: Syndrome of orthostatic headaches and diffuse pachymeningeal gadolinium enhancement. Mayo Clin Proc 1997, 72:400–413.

    PubMed  CAS  Google Scholar 

  3. Schievink WI, Maya MM, Riedlinger M: Recurrent spontaneous spinal cerebrospinal fluid leaks and intracranial hypotension: a prospective study. J Neurosurg 2003, 99:840–842.

    Article  PubMed  Google Scholar 

  4. Nosik WA: Intracranial hypotension secondary to lumbar nerve sleeve tear. JAMA 1955, 157:1110–1111.

    CAS  Google Scholar 

  5. Chung S, Kim J, Lee M: Syndrome of cerebral spinal fluid hypovolemia. Clinical and imaging features and outcome. Neurology 2000, 55:1321–1327.

    PubMed  CAS  Google Scholar 

  6. Chung SJ, Lee JH, Im JH, Lee MC: Short-and long-term outcomes of spontaneous CSF hypovolemia. Eur Neurol 2005, 54:63–67.

    Article  PubMed  Google Scholar 

  7. Schwedt T, Dodick D: Spontaneous intracranial hypotension. Curr Pain Headache Rep 2007, 11:56–61.

    Article  PubMed  Google Scholar 

  8. Walker DG: Refractory headache due to spontaneous intracranial hypotension from a CSF leak at C1-2. J Clin Neurosci 2003, 10:482–485.

    Article  PubMed  CAS  Google Scholar 

  9. Suh SI, Koh SB, Choi EJ, et al.: Intracranial hypotension induced by cervical spine chiropractic manipulation. Spine 2005, 30:E340–E342.

    Article  PubMed  Google Scholar 

  10. Sato Y, Honda Y, Maruoka H, et al.: Recurrence of spontaneous intracranial hypotension with subdural hematomas. Cephalalgia 1997, 17:42–45.

    Article  PubMed  CAS  Google Scholar 

  11. Noronha RJ, Sharrack B, Hadjivassiliou M, Romanowski CAJ: Subdural haematoma: a potentially serious consequence of spontaneous intracranial hypotension. J Neurol Neurosurg Psychiatry 2003, 74:752–755.

    Article  PubMed  Google Scholar 

  12. Whiteley W, Al-Shahi R, Lueck CJ: Spontaneous intracranial hypotension causing confusion and coma: a headache for the neurologist and the neurosurgeon. Brit J Neurosurg 2003, 17:456–458.

    Article  CAS  Google Scholar 

  13. Watanabe A, Horikoshi T, Uchida M, et al.: Subdural effusions in the posterior fossa associated with spontaneous intracranial hypotension. Can J Neurol Sci 2006, 33:205–208.

    PubMed  Google Scholar 

  14. Schievink WI, Maya MM, Moser FG, Tourje J: Spectrum of subdural fluid collections in spontaneous intracranial hypotension. J Neurosurg 2005, 103:608–613.

    PubMed  Google Scholar 

  15. Mokri B, Maher C, Sencakova D: Spontaneous CSF leaks: underlying disorder of connective tissue. Neurology 2002, 58:814–816.

    PubMed  Google Scholar 

  16. Schievink WI, Gordon OK, Tourje J: Connective tissue disorder with spontaneous spinal cerebrospinal fluid leaks and intracranial hypotension: a prospective study. Neurosurgery 2004, 54:65–70.

    Article  PubMed  Google Scholar 

  17. Yousry I, Förderreuther S, Bernhard M, et al.: Cervical imaging in postural headache: MR signs and pathophysiological implications. Am J Neuroradiol 2001, 22:1239–1250.

    PubMed  CAS  Google Scholar 

  18. Pakiam A, Lee C, Lang AE: Intracranial hypotension with parkinsonism, ataxia and bulbar weakness. Arch Neurol 1999, 56:869–872.

    Article  PubMed  CAS  Google Scholar 

  19. Beck CE, Rizk NW, Kiger LT, et al.: Intracranial hypotension presenting with severe encephalopathy. Case report. J Neurosurg 1998, 89:470–473.

    PubMed  CAS  Google Scholar 

  20. Kashmere JL, Jacka MJ, Emery D, Gross DW: Reversible coma: a rare presentation of spontaneous intracranial hypotension. Can J Neurol Sci 2004, 31:565–568.

    PubMed  Google Scholar 

  21. Alvarez-Linera J, Escribano J, Benito-Leon J, et al.: Pituitary enlargement in patients with intracranial hypotension syndrome. Neurology 2000, 55:1895–1897.

    PubMed  CAS  Google Scholar 

  22. Mokri B, Posner J: Spontaneous intracranial hypotension: the broadening clinical and imaging spectrum of CSF leaks. Neurology 2000, 55:1771–1772.

    PubMed  CAS  Google Scholar 

  23. Albayram S, Wasserman B, Yousem DM, Wityk R: Intracranial hypotension as a cause of radiculopathy from cervical epidural venous engorgement: case report. Am J Neuroradiol 2002, 23:618–621.

    PubMed  Google Scholar 

  24. Mea E, Savoiardo M, Chiapparini L, et al.: Headache and spontaneous low cerebrospinal fluid pressure syndrome. Neurol Sci 2007, 28(Suppl 2):232–234.

    Article  Google Scholar 

  25. O’Carroll CP, Zawadzki MB: The syndrome of spontaneous intracranial hypotension. Cephalalgia 1999, 19:80–87.

    Article  PubMed  CAS  Google Scholar 

  26. Headache Classification Subcommittee of the International Headache Society: The International Classification of Headache Disorders: 2nd edition. Cephalalgia 2004, 24(Suppl 1):9–160.

    Google Scholar 

  27. Schievink W, Maya M, Louy C: Cranial MRI predicts out-come of spontaneous intracranial hypotension. Neurology 2005, 64:1282–1284.

    PubMed  Google Scholar 

  28. Schoffer KL, Benstead TJ, Grant I: Spontaneous intracranial hypotension in the absence of magnetic resonance imaging abnormalities. Can J Neurol Sci 2002, 29:253–257.

    PubMed  Google Scholar 

  29. Messori A, Simonetti BF, Regnicolo L, et al.: Spontaneous intracranial hypotension: the value of brain measurements in diagnosis by MRI. Neuroradiology 2001, 43:453–461.

    Article  PubMed  CAS  Google Scholar 

  30. Tsai PH, Wang SJ, Lirng JF, Fuh JL: Spontaneous intracranial hypotension presenting as mental deterioration. Headache 2005, 45:76–80.

    Article  PubMed  Google Scholar 

  31. Mikawa S, Ebina T: Spontaneous intracranial hypotension complicating subdural hematoma: unilateral oculomotor nerve palsy caused by epidural blood patch. Neurol Surg 2001, 29:747–753.

    CAS  Google Scholar 

  32. Schievink W, Maya M, Chow W, Louy C: Reversible cerebral vasoconstriction in spontaneous intracranial hypotension. Headache 2007, 47:284–287.

    Article  PubMed  Google Scholar 

  33. Berroir S, Loisel B, Ducros A, et al.: Early epidural blood patch in spontaneous intracranial hypotension. Neurology 2004, 1950–1951.

  34. Kantor D, Silberstein S: Cervical epidural blood patch for low CSF pressure headache. Neurology 2005, 65:1138.

    Article  PubMed  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to James R. Couch.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Couch, J.R. Spontaneous intracranial hypotension: The syndrome and its complications. Curr Treat Options Neurol 10, 3–11 (2008). https://doi.org/10.1007/s11940-008-0001-5

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11940-008-0001-5

Keywords

Navigation