Nature reviews. Neurology
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Nature reviews. Neurology · Sep 2009
Review Case ReportsA case of postpartum cerebral angiopathy with subarachnoid hemorrhage.
A 33-year-old woman experienced a thunderclap headache immediately postpartum. The headache recurred over the next 10 days, and the patient also developed generalized tonic-clonic seizures. A subarachnoid hemorrhage was demonstrated on a head CT scan. ⋯ NSAIds and opioid analgesics administered on postpartum day 3 provided partial headache relief. The next day, a blood patch was performed and intravenous caffeine, fluid and opioid analgesia were given to treat a suspected dural puncture headache. Following diagnosis of postpartum cerebral angiopathy on postpartum day 10, nimodipine was initiated to treat the vasospasm, and the headache was treated with opioid analgesics and toradol, followed by naproxen. The patient also received a 3-day course of intravenous magnesium sulfate.
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Migraine headaches have a female predominance with a peak in prevalence in the third and fourth decades of life. Women of reproductive age are liable to develop their first migraine while pregnant or exhibit changes in the character, frequency or severity of their headaches during pregnancy and the puerperium. ⋯ We present the case of a woman with a history of migraine headaches before pregnancy, whose symptoms progressed during pregnancy in part because of increasing exposure to narcotic medications. We also review the options for migraine evaluation and treatment, and provide an overview of the risks associated with the different treatment options.
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Nature reviews. Neurology · Jul 2009
ReviewEpileptogenesis in the immature brain: emerging mechanisms.
Epileptogenesis is defined as the process of developing epilepsy-a disorder characterized by recurrent seizures-following an initial insult. Seizure incidence during the human lifespan is at its highest in infancy and childhood. Animal models of epilepsy and human tissue studies suggest that epileptogenesis involves a cascade of molecular, cellular and neuronal network alterations. ⋯ These epileptogenic processes are developmentally regulated and might contribute to differences in epileptogenesis between adult and developing brains. Here we review the factors responsible for enhanced seizure susceptibility in the developing brain, and consider age-specific mechanisms of epileptogenesis. An understanding of these factors could yield potential therapeutic targets for the prevention of epileptogenesis and also provide biomarkers for identifying patients at risk of developing epilepsy or for monitoring disease progression.
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Nature reviews. Neurology · Jul 2009
ReviewCritical illness polyneuropathy and myopathy in the intensive care unit.
Critical illness polyneuropathy (CIP) and critical illness myopathy (CIM) are major complications that occur in severely ill patients who require intensive care treatment. CIP and CIM affect the limb and respiratory muscles, and, as a consequence, they characteristically complicate weaning from the ventilator, increase the length of stay on the intensive care unit, and prolong physical rehabilitation. ⋯ It is unclear at present whether CIP and CIM are distinct entities, or whether they just represent different 'organ' manifestations of a common pathophysiological mechanism. This article provides an overview of the clinical and diagnostic features of CIP and CIM and discusses current pathophysiological and therapeutic concepts relating to these neuromuscular disorders.