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Myelitis.

O Andersen1

  • 1Department of Clinical Neuroscience, Sahlgrenska University Hospital, Göteborg, Sweden.

Current Opinion in Neurology
|June 28, 2000
PubMed
Summary
This summary is machine-generated.

Acute transverse myelitis (ATM) causes vary by severity and patient age, ranging from multiple sclerosis to viral infections. Prompt diagnosis through advanced methods like PCR is crucial for effective treatment.

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Area of Science:

  • Neurology
  • Infectious Diseases
  • Immunology

Background:

  • Acute transverse myelitis (ATM) presents with diverse etiologies, often linked to multiple sclerosis in milder cases and viral infections or vascular disorders in severe presentations.
  • Distinguishing the cause of ATM historically relied on indirect methods, but advancements have improved diagnostic accuracy.
  • Understanding the underlying causes is critical for appropriate management and treatment strategies.

Purpose of the Study:

  • To delineate the various causes of acute transverse myelitis (ATM) based on clinical presentation and imaging findings.
  • To highlight the evolution of diagnostic techniques for identifying infectious and autoimmune etiologies of ATM.
  • To emphasize the importance of a comprehensive differential diagnosis for effective patient outcomes.

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Main Methods:

  • Review of clinical presentations, magnetic resonance imaging (MRI) findings, and patient demographics.
  • Application of specific diagnostic tests, including polymerase chain reaction (PCR) on cerebrospinal fluid (CSF) for viral detection.
  • Consideration of serological evidence and identification of pathogens in relevant samples.

Main Results:

  • Moderate ATM with limited MRI lesions is frequently associated with multiple sclerosis.
  • Severe ATM with extensive lesions, particularly in younger individuals, often indicates a viral cause.
  • Older patients with severe ATM may have vascular disorders; post-infectious/vaccinal causes like acute disseminated encephalomyelitis (ADEM) and autoimmune conditions are also significant.
  • Neuromyelitis optica is linked to ADEM or systemic lupus erythematosus.

Conclusions:

  • Accurate diagnosis of ATM relies on considering a broad differential, including viral myelitis, multiple sclerosis, ADEM, neuromyelitis optica, and vascular issues.
  • Modern diagnostic tools, such as PCR, enable specific identification of viral agents.
  • Many ATM causes are treatable with antiviral agents or immunosuppression, underscoring the need for rapid and thorough diagnostic work-up.