Nerve Conduction Studies in Diabetic Polyneuropathy: A Comparative Analysis of Asymptomatic and Symptomatic Patients

This study aimed to compare motor nerve conduction parameters in diabetic patients with and without signs of diabetic polyneuropathy (DPN). The study was carried out on 80 participants- 40 asymptomatic and 40 symptomatic patients, and employed motor nerve conduction studies (NCS) on the right and left tibial and ulnar nerves. The results showed that symptomatic patients had decreased motor nerve amplitudes and increased F-wave latencies in both tibial and ulnar nerves compared to asymptomatic patients. Symptomatic patients had reduced amplitudes of nerve responses and increased latency, but conduction velocities were similar to those of asymptomatic patients. These results have emphasized selective nerve dysfunction in symptomatic patients and have emphasized that nerve amplitude and latency should be the focus of nerve integrity in diabetic neuropathy.