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Year : 2017  |  Volume : 12  |  Issue : 4  |  Page : 229-233

Study of motor nerve conduction velocity in patients of thyroid dysfunction in central India

1 Department of Physiology, Jawaharlal Nehru Medical College, Wardha, Maharashtra, India
2 Department of Physiology, Shri Shankaracharya Institute of Medical Sciences, Bhilai, Chhattisgarh, India

Correspondence Address:
Dr. Avinash Baliramji Taksande
Department of Physiology, Jawaharlal Nehru Medical College, Sawangi (M), Wardha, Maharashtra - 442 004
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jdmimsu.jdmimsu_100_17

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Background: Hypothyroidism is a clinical disorder due to the deficiency of thyroid hormone. This hormone is a key regulator of cellular metabolism in our body. Hypothyroid state is usually asymptomatic, symptoms in the early phase while associated with a number of symptoms later affecting skin, heart, endocrine, brain, and nerves. Hyperthyroidism is less commonly associated with neuromuscular disorders and polyneuropathy. Objective: The objective of the study was to assess motor nerve functions in thyroid dysfunction patients. Study Design: This study design was a comparative study. Population: The study population was clinically diagnosed thyroid dysfunction patients and healthy individuals. Sample Size: The sample size was 82 (41 each in cases and control group). Materials and Methods: Neuro Perfect 2 – Channel EMG NCV EP, Medicaid, instrument was used. Parameters such as distal motor latency (DML), compound motor action potential CMAP amplitude, conduction velocity (CV) for motor nerve, and F-wave minimum latency of motor nerve were recorded and analyzed. Results: The median motor nerve CV (MNCV) and F-minimum latency were significantly reduced in cases as compared to controls on the right side (P < 0.05). The MNCV, DML, and F-minimum latency were significantly reduced in cases as compared to controls on the left side (P < 0.05). Conclusion: The findings suggest that polyneuropathy is associated with hypothyroidism. Further nerve conduction study might be useful to evaluate and to diagnose peripheral neuropathy in hypothyroid patients.

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