I am a 32-year-old female. How can I manage my NMOSD?

Question

Hello doctor,

I am a 32-year-old woman, and over the past few weeks, I have been experiencing repeated episodes of blurred vision in my left eye. My recent MRI showed lesions along the optic nerve that the radiologist said appear suspicious for NMOSD. My blood test came back strongly positive for AQP4-IgG at 1:320, which has frightened me a lot.

My MOG-IgG test was negative, but my CSF protein was slightly elevated at 68 mg/dL. In the last 10 days, I have developed numbness from my chest down to both legs, and walking has become more difficult each day. I have also noticed sudden urinary urgency, and on one occasion, I could not feel the need to pass urine at all.

My spinal MRI reported longitudinally extensive transverse myelitis (LETM) spanning more than three vertebral segments. My ESR is 42 mm/hr, and my CRP is mildly raised, though I am unsure of their significance. I feel extremely anxious because the weakness in my legs seems to be getting worse.

Fatigue and back spasms have also become frequent. I received IV steroids last month, but the symptoms have returned. Could you please help me understand what these findings might indicate and what steps I should consider next?

Please help.

Thank you.

Answer 1

Hello,

Welcome to icliniq.com.

I understand your concern.

Your symptoms, MRI (magnetic resonance imaging) findings, and blood test results together strongly suggest neuromyelitis optica spectrum disorder (NMOSD), which differs from MS (multiple sclerosis) and can cause more severe attacks. The strongly positive AQP4-IgG (aquaporin-4 immunoglobulin G) level (1:320) is a highly specific marker for NMOSD, and when combined with optic-nerve lesions and longitudinally extensive transverse myelitis (LETM), it supports the diagnosis clearly. The numbness from the chest downward, increasing leg weakness, and bladder urgency or loss of sensation are likely related to inflammation along an extended area of your spinal cord.

The mildly elevated ESR (erythrocyte sedimentation rate) and CRP (C-reactive protein) are signs of general inflammation and do not change the diagnostic impression. The return and progression of symptoms despite IV (intravenous) steroids may indicate that more intensive treatment is necessary during an NMOSD flare. In many cases, the next step may involve plasma exchange (PLEX), particularly if weakness is worsening.

PLEX works by removing circulating AQP4 antibodies from the bloodstream and can improve outcomes when steroids alone are insufficient. For long-term management, NMOSD typically requires ongoing preventive therapy rather than intermittent steroid treatment. Options may include Rituximab, Eculizumab, Satralizumab, or Inebilizumab, all of which help reduce future attacks and protect the optic nerves and spinal cord from further injury.

Your CSF (cerebrospinal fluid) results (slightly elevated protein with no oligoclonal bands) also align more closely with NMOSD than with MS. Because your walking difficulties and bladder symptoms are progressing, timely medical treatment is important, as NMOSD flare-ups can lead to lasting disability if not controlled. Seeking prompt consultation with your neurologist to discuss treatment escalation and long-term therapy may help prevent further damage.

I hope my explanation was clear and helped ease your mind. If you ever have any questions, I am always here to help.

Thank you.