Electrodiagnosis of Carpal Tunnel Syndrome in Patients with Diabetic Neuropathy.
- Author:
Sei Joo KIM
1
;
Sang Heon LEE
;
Woo Sub KIM
;
Eun Ha LEE
Author Information
1. Department of Rehabilitation Medicine, College of Medicine, Korea University.
- Publication Type:Original Article
- Keywords:
Diabetic neuropathy;
Carpal tunnel syndrome;
Distoproximal latency ratio
- MeSH:
Carpal Tunnel Syndrome*;
Diabetes Mellitus;
Diabetic Neuropathies*;
Electrodiagnosis*;
Hand;
Humans;
Median Neuropathy;
Sensitivity and Specificity
- From:Journal of the Korean Academy of Rehabilitation Medicine
2000;24(4):696-703
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVE: To investigate the reliability of distoproximal latency ratio of median sensory nerve as a diagnostic criterion of carpal tunnel syndrome (CTS) in patients with diabetic polyneuropathy. SUBJECT: Electrophysiologic study was performed in 264 hands of 208 patients with diabetes. Forty eight hands (24 subjects) without diabetes mellitus or CTS were included as a normal control group. Another 48 hands having CTS without diabetes mellitus were also included as a CTS control group. METHOD: Clinical and electrophysiologic findings were included to detect carpal tunnel syndrome in patients with diabetic neuropathy. Sensitivity and specificity of various electrodiagnostic parameters to confirm clinical CTS were obtained. RESULTS: Diabetic neuropathy was diagnosed in 66.3%, and median neuropathy was diagnosed in 52.7%. CTS was found in 32.2% as determined by the distoproximal latency ratio. The sensitivity of distoproximal latency ratio as a diagnostic tool for CTS was the highest (95.1%) and the specificity was the second highest (51.3%) among 5 different electrodiagnostic criteria of CTS. CONCLUSION: The results suggest that distoproximal latency ratio is an important parameter with high sensitivity in determining CTS in the patients with diabetic polyneuropathy.
