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Journal of the Korean Academy of Rehabilitation Medicine 2008;32(1):73-79.
Correlation between Severity of Diabetic Neuropathy and Somatosensory Evoked Potentials Study.
Ha, Kang Wook , Kwon, Hee Kyu , Lee, Sang Heon , Kim, Lina , Park, Yoon Kun
Department of Rehabilitation Medicine, Korea University College of Medicine, Seoul, Korea. hkkwon@korea.ac.kr
당뇨병성 신경병증 심도에 따른 체성감각 유발전위 검사 소견
하강욱, 권희규, 이상헌, 김리나, 박윤근
고려대학교 의과대학 재활의학교실
Abstract
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. (J Korean Acad Rehab Med 2008; 32: 73-79)
Key Words: Diabetic neuropathy, Somatosensory evoked potentials


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