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What Does This ENMG Report Regarding Myelitis Indicate?

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Posted on Mon, 16 Jun 2014
Question: Need help in understanding ENMG report that was performed today.

Myelitis since 14-Mar-2014.

Thanks, XXXXXXX

doctor
Answered by Dr. Indu Kumar (1 hour later)
Brief Answer:
Findings are due to myelitis.

Detailed Answer:
Hello XXXXXXX
Thanks for writing to HCM

I have gone through the findings in detail.
Patient's findings are due to myelitis.

Myelitis involves the infection or inflammation of white matter or gray matter of spinal cord.
During an inflammatory response on the spinal cord,the myelination and axon may be damaged causing symptoms such as paralysis and sensory loss.

Pateint's ENMG (ElectroMyoNeuroGraphy)report suggests that CMAP(compound muscle action potential) can't be elicited from bilateral common peroneal,femoral and left posterior tibial nerves.
However,CMAP amplitudes are reduced with other normal parameters are noted in right posterior tibial nerve.

SNAP(sensory nerve action potential ) and sensory conduction velocity are normal in bilateral superficial peroneal,sural and saphenous nerves.

CMAP and SNAP are Nerve Conduction Velocity (NCV) Studies.

Needle EMG(electromyography) shows fibrillation in right quadriceps and right tibialis anterior muscle without MUP(motor unit potential).Fibrillations are spontaneous activities without any external stimulus and this shows nerve damage.

These findings are suggestive of preganglionic (lower motor neuron)nerve segment damage with involvement of L2,3,4 and Sacral S1 nerves with denervation(loss of motor nerve supply) and without evidence of re-innervation.

Get well soon.
Hope I have answered your question.
Further queries are most welcome.

Take Care
Dr.Indu XXXXXXX
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
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Follow up: Dr. Indu Kumar (12 minutes later)
Hello Doctor,

Based on this report. Could you please let me know how long it is going to take to recover and allow me walking again normally.

Regards, XXXXXXX
doctor
Answered by Dr. Indu Kumar (3 hours later)
Brief Answer:
Please find detail answer below.

Detailed Answer:
Hello XXXXXXX
Thanks for writing back

Recovery time is not universal for all patients.It varies with patient and depend upon underlying etiology.
It may take 2 and 12 weeks after onset and may continue to improve for up to 2 years.

Get well soon.
Hope I have answered your question.
Further queries are most welcome.

Take Care
Dr.Indu XXXXXXX
Above answer was peer-reviewed by : Dr. Vaishalee Punj
doctor
Answered by
Dr.
Dr. Indu Kumar

Radiologist

Practicing since :2004

Answered : 6728 Questions

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What Does This ENMG Report Regarding Myelitis Indicate?

Brief Answer: Findings are due to myelitis. Detailed Answer: Hello XXXXXXX Thanks for writing to HCM I have gone through the findings in detail. Patient's findings are due to myelitis. Myelitis involves the infection or inflammation of white matter or gray matter of spinal cord. During an inflammatory response on the spinal cord,the myelination and axon may be damaged causing symptoms such as paralysis and sensory loss. Pateint's ENMG (ElectroMyoNeuroGraphy)report suggests that CMAP(compound muscle action potential) can't be elicited from bilateral common peroneal,femoral and left posterior tibial nerves. However,CMAP amplitudes are reduced with other normal parameters are noted in right posterior tibial nerve. SNAP(sensory nerve action potential ) and sensory conduction velocity are normal in bilateral superficial peroneal,sural and saphenous nerves. CMAP and SNAP are Nerve Conduction Velocity (NCV) Studies. Needle EMG(electromyography) shows fibrillation in right quadriceps and right tibialis anterior muscle without MUP(motor unit potential).Fibrillations are spontaneous activities without any external stimulus and this shows nerve damage. These findings are suggestive of preganglionic (lower motor neuron)nerve segment damage with involvement of L2,3,4 and Sacral S1 nerves with denervation(loss of motor nerve supply) and without evidence of re-innervation. Get well soon. Hope I have answered your question. Further queries are most welcome. Take Care Dr.Indu XXXXXXX