Acute Hemorrhagic Leukoencephalitis and Hypoxic Brain Injury Associated With H1N1 Influenza
Open Access
- 1 June 2010
- journal article
- case report
- Published by American Medical Association (AMA) in Archives of Neurology
- Vol. 67 (6), 756-758
- https://doi.org/10.1001/archneurol.2010.122
Abstract
ObjectiveTo describe the first adult with neurologic complications associated with H1N1 influenza virus infection.DesignCase report.PatientA 40-year-old man with severe H1N1 influenza infection with prolonged hypoxia and critical illness who remained comatose after withdrawal of sedatives and paralytics.InterventionsClinical examination and magnetic resonance imaging.ResultsBrain imaging revealed multifocal T2 hyperintense lesions, edema, and hemorrhages consistent with acute hemorrhagic leukoencephalitis (AHL) and restricted diffusion in the basal ganglia consistent with hypoxic brain injury. The patient remained in a severely disabled state following treatment with plasma exchange and high-dose corticosteroids.ConclusionsThis is the first study of neurologic complications associated with H1N1 influenza infection in adults. Severe brain injury can occur by 2 distinct mechanisms: a fulminant autoimmune demyelinating insult (AHL) and hypoxic brain injury. Clinicians should be aware of these potential complications so that appropriate imaging and treatment can be considered.Keywords
This publication has 8 references indexed in Scilit:
- Acute necrotizing encephalopathy in a child with H1N1 influenza infectionPediatric Radiology, 2009
- Acute hemorrhagic leukoencephalitis with atypical featuresNeurological Sciences, 2009
- Effect of nitric oxide on oxygenation and mortality in acute lung injury: systematic review and meta-analysisBMJ, 2007
- Infection–associated encephalopathies—their investigation, diagnosis, and treatmentZeitschrift für Neurologie, 2006
- Causes and Timing of Death in Patients With ARDSSocial psychiatry. Sozialpsychiatrie. Psychiatrie sociale, 2005
- Acute Haemorrhagic Encephalomyelitis (AHEM): MRI FindingsNeuropediatrics, 2004
- Acute hemorrhagic leukoencephalitis vs ADEM: FLAIR MRI and neuropathology findingsNeurology, 2003
- Acute disseminated encephalomyelitis in adults: a reappraisal of clinical, CSF, EEG, and MRI findingsZeitschrift für Neurologie, 2000