Reversible Cerebral Vasoconstriction Syndrome: An Important Cause of Acute Severe Headache

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td align="left">Vasoactive substances</td><td align="left">Predisposing conditions</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td align="left">Recreational drugs: <i>Cannabis</i>, cocaine, ecstasy, amphetamines, LSD, binge drinking</td><td align="left">Pregnancy</td></tr><tr><td align="left">Sympathomimetics, nasal decongestants: ephedrine, pseudoephedrine</td><td align="left">Eclampsia, preeclampsia</td></tr><tr><td align="left">Serotonergic drugs: selective serotonin reuptake inhibitors, triptans</td><td align="left">Neoplasia: phaeochromocytoma, bronchial carcinoid, glomus tumour</td></tr><tr><td align="left">Immunosuppressants: tacrolimus, cyclophosphamide</td><td align="left">Neurosurgery, head injury</td></tr><tr><td align="left">Nicotine patches</td><td align="left">Hypercalcaemia</td></tr><tr><td align="left">Herbal medications: ginseng</td><td align="left">Porphyria</td></tr><tr><td align="left">Blood products: erythropoietin, immunoglobulin, red cell transfusion</td><td align="left">Intracerebral haemorrhage, subarachnoid haemorrhage</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Secondary precipitants of RCVS [<a href="/journals/emi/2012/303152/#B9">9</a>–<a href="/journals/emi/2012/303152/#B12">12</a>].

Emergency Medicine International

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Table 2: Reversible Cerebral Vasoconstriction Syndrome: An Important Cause of Acute Severe Headache 