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KMID : 0361420080320010073
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Journal of Korean Academy of Rehabilitation Medicine
2008 Volume.32 No. 1 p.73 ~ p.79
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Correlation between Severity of Diabetic Neuropathy and Somatosensory Evoked Potentials Study
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Ha Kang-Wook
Kwon Hee-Kyu
Kim Li-Na
Park Yoon-Kun
Lee Sang-Heon
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Abstract
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Objective: To investigate the clinical applicability of the somatosensory evoked potentials (SEPs) study in early detection of diabetic neuropathy, and compare the results in different degrees of the disease.
Method: The study was performed retrospectively with prospective data collection. The Toronto clinical scoring system was taken as well as nerve conduction study, needle electromyography, and SEPs study with median and posterior tibial nerve stimulations in thirty-eight diabetic patients and twenty non-diabetic adults. The subjects were divided into the non-neuropathy group and the neuropathy group, and the latter was divided into three subgroups (suspected, probable, and definite) according to the degree of neuropathy. Statistical analysis was performed with height and age-related correction of reference values of the latency of SEPs with posterior tibial nerve stimulation.
Results: The Toronto clinical scoring system showed concordance with the degree of the diabetic neuropathy (p<0.05, correlation coefficient=0.827). SEPs study with posterior tibial nerve stimulations showed statistically significant latency delay, not only in the neuropathy group, but also in the non-neuropathy group, compared with the non-diabetic group (p<0.05). Moreover, the latency delay was noted in proportion to the degree of the diabetic neuropathy within the neuropathy group. Interpretation of the data with height and age-corrected reference values of latency of posterior tibial SEPs had stronger correlation.
Conclusion: The SEPs study is useful in the early diagnosis of diabetic neuropathy. However, application of the SEPs to clinical use needs to go through height and age correction.
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KEYWORD
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Diabetic neuropathy, Somatosensory evoked potentials
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