Obesity is one of the commonest finding in Type 2 Diabetes mellitus (DM). For detection of neuropathy nerve conduction studies are done as electrophysiological tests. But the nerve conduction study may be affected by the fat in the epineurium.
Material and methods: A total of seventy Type 2 diabetic patients were taken with duration of diabetes 3 years or more, with a fasting blood sugar level ≥ 126 mg/dL and post prandial blood sugar level ≥ 200 mg/dL. Two groups were made Group A (n=35 with BMI 18.5 to 24.9) and Group B (n=35 with BMI >25). The entire recording of Right ulnar nerve conduction velocity was done using a four channel AD instrument and Compound Muscle Action Potential (CMAP) was recorded by using the LabChart software in both the groups.
Results: We found that there was a significant (P<0.05) decrease in the nerve conduction velocity among the Diabetic population with BMI >25 (44.34 ±13.13) compared to the Type 2 DM with BMI 18.5 to 24.9 (51.78 ± 14.29).
Conclusion: Thus from our study, we would like to conclude that there is a link between BMI and nerve conduction velocity in Type 2DM. A more detailed study involving more number of patients with Type 2DM is warranted to come to a definite conclusion.