Background

Condition Lookup

Number of Conditions: 1

Neuromyelitis Optica Spectrum Disorder (NMOSD)

Specialty: Neurology

Category: Demyelinating and Autoimmune Disorders

Symptoms:
severe optic neuritis; paralysis or weakness; loss of bladder/bowel control; nausea; vomiting; hiccups

Root Cause:
Autoimmune attack on aquaporin-4 water channels in astrocytes of the CNS, leading to inflammation and demyelination.

How it's Diagnosed: videos
Detection of aquaporin-4 antibodies (AQP4-IgG), MRI showing spinal cord or optic nerve lesions, and clinical symptom history.

Treatment:
Immunosuppressive therapies, plasmapheresis for acute attacks, and preventative treatments to reduce relapses.

Medications:
Rituximab (monoclonal antibody targeting CD20), corticosteroids (e.g., methylprednisolone ), azathioprine , and mycophenolate mofetil (immunosuppressants).

Prevalence: How common the health condition is within a specific population.
Rare, affecting approximately 1-10 per 100,000 people, more common in women and certain ethnic groups.

Risk Factors: Factors or behaviors that increase the likelihood of developing the condition.
Female gender, autoimmune conditions, genetic predisposition, and certain infections.

Prognosis: The expected outcome or course of the condition over time.
Relapsing disease with potential for severe disability if untreated; early treatment improves outcomes.

Complications: Additional problems or conditions that may arise as a result of the original condition.
Permanent vision loss, spinal cord damage, and secondary infections.