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Published on: May 8, 2016
Acute transverse myelitis: demyelinating, inflammatory, and infectious myelopathies
Timothy W West1, Christopher Hess, Bruce A C Cree
1Lou Ruvo Center for Brain Health, Cleveland Clinic, Las Vegas, Nevada 89106, USA. westt3@ccf.org
Abstract:
Acute transverse myelitis is a rare neurologic condition that has an estimated incidence of up to 3 per 100,000 patient years (0.003%). Although rare, acute transverse myelitis can have devastating neurologic effects with up to two-thirds of patients having a moderate to severe degree of residual disability. The term acute transverse myelitis was previously reserved for idiopathic cases, but currently is used to encompass the general clinical syndrome, whether or not the cause is known. Once adequate neuroimaging has ruled out a compressive etiology, and a lumbar puncture has demonstrated signs of inflammation within the cerebrospinal fluid, a workup of causes for an acute transverse myelitis must be undertaken. Determining the etiology of transverse myelitis can be challenging because there are autoimmune, inflammatory, and infectious diseases associated with acute transverse myelitis. The authors discuss an approach to acute transverse myelitis including clinical symptoms, neuroimaging, and biomarkers that may aid the clinician in diagnosis.
Insights
Acute transverse myelitis is a rare neurological condition that can cause significant disability. This review outlines an approach to diagnosing its causes, focusing on clinical symptoms, imaging, and biomarkers.
Area of Science:
- Neurology
- Immunology
- Infectious Diseases
Background:
- Acute transverse myelitis (ATM) is a rare neurological disorder with a significant potential for causing moderate to severe residual disability.
- Historically, ATM referred only to idiopathic cases, but it now encompasses a broader clinical syndrome regardless of known etiology.
- The incidence of ATM is estimated at up to 3 per 100,000 patient-years.
Purpose of the Study:
- To present a systematic approach for diagnosing the underlying causes of acute transverse myelitis.
- To highlight the importance of clinical presentation, neuroimaging, and cerebrospinal fluid analysis in the diagnostic workup.
- To discuss the diverse range of potential etiologies, including autoimmune, inflammatory, and infectious diseases.
Main Methods:
- Review of clinical presentation and diagnostic criteria for acute transverse myelitis.
- Emphasis on neuroimaging techniques to exclude compressive lesions.
- Discussion of cerebrospinal fluid analysis for inflammatory markers.
- Exploration of biomarkers aiding in etiological diagnosis.
Main Results:
- Diagnosis of ATM requires ruling out compressive etiologies via neuroimaging and identifying inflammation in cerebrospinal fluid via lumbar puncture.
- Etiological determination can be complex due to the association of ATM with various autoimmune, inflammatory, and infectious conditions.
- Clinical symptoms, neuroimaging findings, and specific biomarkers are crucial for guiding the diagnostic process.
Conclusions:
- A comprehensive diagnostic strategy is essential for managing acute transverse myelitis.
- Identifying the specific cause of ATM is critical for appropriate treatment and prognosis.
- Further research into diagnostic biomarkers may improve the accuracy and efficiency of etiological determination.
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