• Fady Girgis, Molly Shing, and Stephan Duplessis.
• Foothills Medical Centre, University of Calgary, Department of Neurosurgery, AB, Canada.
• Turk Neurosurg. 2015 Jan 1;25(2):320-5.

AbstractSpontaneous intracranial hypotension (SIH) is caused by spinal leakage of cerebrospinal fluid (CSF). Treatment is directed at sealing the site of leak, which is often difficult to localize. We present a case of near fatal SIH that was treated with thoracic epidural blood patching. A 47-year old male presented with orthostatic headache and bilateral cranial nerve VI palsies progressing over several weeks. Brain magnetic resonance (MR) imaging showed features typical of SIH and identified an epidural collection stretching from spinal levels C6 to T4, but further imaging with MR myelography and radionuclide cisternography failed to identify a precise site of leak. The patient worsened in the hospital requiring craniotomy for evacuation of an evolving subdural hematoma (SDH). Epidural blood patch was performed at the T1-2 level, the presumed location of the leak due to presence of a bone spur on computed tomography and the large corresponding CSF collection. This quickly led to resolution of the headache and cranial nerve palsies, and later to the complete resolution of his SDH. Through this case and review of the literature, we aim to demonstrate that directed cervical or thoracic blood patching should be considered for SIH as an alternative to the conventional lumbar blood patch.

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