Reversible cerebral vasoconstriction syndrome associated with autonomic dysreflexia |
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Authors: | Bengt Edvardsson Staffan Persson |
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Institution: | 1. Department of Neurology, Faculty of Neurology, Lund University Hospital, 221 85, Lund, Sweden
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Abstract: | A 32-year-old man with a residual spastic quadriparesis from a traumatic C5–C6 fracture experienced a severe thunderclap headache.
The medical history revealed an episode of autonomic dysreflexia (AD) due to neurogenic bladder/urinary tract infection (UTI).
Blood pressure monitoring at admission revealed hypertension; blood pressure reaching 160/100 mmHg (average blood pressure
in these patients and also in this patient being 90/60 mmHg). CT scan of the head, cerebrospinal fluid examination, CT angiography
and MR angiography of the brain vessels were normal. Another UTI and a subsequent spell of AD were diagnosed. The patient
continued to experience recurrent thunderclap headaches. Selective catheter cerebral angiography revealed multiple calibre
changes in the intracranial blood vessels. A diagnosis of reversible cerebral vasoconstriction syndrome (RCVS) due to AD was
considered. A magnetic resonance imaging (MRI) of the brain after 2 weeks revealed ischaemic changes in the left hemisphere.
Follow-up brain MRI after 3 weeks showed reduction in size of the ischaemic changes, and catheter angiography after 6 weeks
demonstrated improvement/normalization. A diagnosis of RCVS could be established. Repeated MRI/CT of the brain after 6 months
demonstrated a large infarction in the left hemisphere. RCVS has been reported to occur in various clinical settings. It can
occur in the setting of AD in patients with traumatic cervical cord injury. Prompt recognition of RCVS may be of vital importance
to avoid further morbidity in patients with spinal cord injury. |
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Keywords: | Reversible cerebral vasoconstriction syndrome Autonomic dysreflexia Cerebral infarct Thunderclap headache Hypertension Reversible posterior leukoencephalopathy syndrome |
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