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Paradoxical postural headaches in cerebrospinal fluid leaks

Authors


Bahram Mokri MD, Department of Neurology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA. Tel. + 1 507 538 1034, Fax + 1 507 266 4752, e-mail bmokri@mayo.edu

Abstract

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Two patients with cerebrospinal fluid (CSF) leak, one at the level of fourth thoracic spine and another with undetermined level of leak, presented with paradoxical postural headaches in that the headaches were present when in a horizontal position and resolved if the patients were upright. One patient improved spontaneously and the other responded to a targeted epidural blood patch. Paradoxical postural headache is yet another headache type that can be associated with CSF leak and CSF volume depletion. Its mechanism is uncertain, but it could be related to  congestion  and  dilatation  of  cerebral venous sinuses and large veins.

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