Acute Flaccid Myelitis: Etiologic Challenges, Diagnostic and Management Considerations

Area of Science:

• Neurology
• Infectious Diseases
• Pediatrics

Background:

• Acute flaccid myelitis (AFM) is a rare, polio-like neurological disorder characterized by sudden onset of flaccid paralysis.
• Diagnosis relies on clinical presentation and spinal MRI revealing longitudinal lesions in the spinal cord's gray matter.

Purpose of the Study:

• To review the current understanding of acute flaccid myelitis.
• To highlight key clinical aspects for diagnosis and management.
• To discuss recent findings and future research directions.

Main Methods:

• Literature review of acute flaccid myelitis.
• Analysis of recent case clusters and epidemiological data.
• Discussion of current and proposed treatment strategies.

Main Results:

• Clusters of AFM cases occurred in the USA in 2014 and 2016.
• Standard transverse myelitis treatments have generally shown limited efficacy.
• Intravenous immunoglobulin (IVIG) and intensive rehabilitation are current management approaches.
• A potential link to enterovirus D68 (EV-D68) is suggested but not definitively proven.
• Longer-term outcome data is still emerging.

Conclusions:

• AFM is a significant illness with potential long-term consequences.
• Further research is crucial to determine etiology, host factors, optimal treatments, and long-term outcomes.
• Prompt reporting of AFM cases to public health agencies is essential for ongoing surveillance and research efforts.