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Could Acute Or Chronic Mentioned In An EMG Report Mean Permanent Nerve Damage?

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Posted on Sun, 11 Apr 2021
Question: What does an emg report mean by ‘acute’ and ‘chronic’?
Does it mean permanent nerve damage? Can it get much worse?
Thanks
Sally

doctor
Answered by Dr. Neeraj Kumar (23 minutes later)
Brief Answer:
Not permanent damage

Detailed Answer:
Hello,
I have gone through your question and understand your concern.
Acute signifies recent damage and chronic means long standing disease and associated changes.
Even acute condition may be having poor recovery and chronic disease may have a better prognosis.
No direct relationship with nerve damage and recovery.
The improvement depends upon the disease.
Regards
Dr N Kumar
Neurologist
Above answer was peer-reviewed by : Dr. Remy Koshy
doctor
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Follow up: Dr. Neeraj Kumar (31 minutes later)
How can I determine reason for the constant changes? Why is the use of MRN not common which I understand will you give a better picture of nerve issues. Thanks Dr!


How do you distinguish between recent damages being mild or Med or worst since acute doesn’t seem to reference damage being acute? How do you measure level of damage to nerves in emg test?
Thanks
XXXX
doctor
Answered by Dr. Neeraj Kumar (21 hours later)
Brief Answer:
EMG may be slightly helpful only

Detailed Answer:
Hello,
MR neurography is a new technique and interpretation and correlation of findings is difficulty as the nerves are very small and thin.
In EMG, acute changes may have fibrillation potentials and amplitude which is larger than chronic injury.
Also chronic cases shows polyphasic finding body MUPs.
Regards
Dr N Kumar
Neurologist
Above answer was peer-reviewed by : Dr. Nagamani Ng
doctor
Answered by
Dr.
Dr. Neeraj Kumar

Neurologist

Practicing since :2006

Answered : 2259 Questions

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Could Acute Or Chronic Mentioned In An EMG Report Mean Permanent Nerve Damage?

Brief Answer: Not permanent damage Detailed Answer: Hello, I have gone through your question and understand your concern. Acute signifies recent damage and chronic means long standing disease and associated changes. Even acute condition may be having poor recovery and chronic disease may have a better prognosis. No direct relationship with nerve damage and recovery. The improvement depends upon the disease. Regards Dr N Kumar Neurologist