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Neurology India
Medknow Publications on behalf of the Neurological Society of India
ISSN: 0028-3886
EISSN: 0028-3886
Vol. 55, No. 1, 2007, pp. 17-21
Bioline Code: ni07008
Full paper language: English
Document type: Research Article
Document available free of charge

Neurology India, Vol. 55, No. 1, 2007, pp. 17-21

 en The role of sensory nerve conduction study of the palmar cutaneous nerve in the diagnosis of carpal tunnel syndrome in patients with polyneuropathy
Ayse TokcaerB, Feride Gogus, Sumer Gullap, Isik Keles, Mustafa Gokce


Background: Conventional methods in the diagnosis of carpal tunnel syndrome (CTS) in patients with polyneuropathy (PNP) are insufficient.
Aims: We suggest that the comparison of the conduction of the median nerve with that of the neighboring peripheral nerves may be more beneficial in the diagnosis of entrapment neuropathy.
Setting and Design: The median nerve sensory conduction in healthy volunteers, in cases of CTS, PNP cases without CTS and in cases of PNP in whom clinical findings point to CTS, were compared by palmar cutaneous nerve (PCN) sensory conduction.
Materials and Methods: Comparative parameters were difference of PCN-1st digits′ nerve conduction velocities (NCV), PCN/1st digit NCVs ratio, difference of 5th-2nd digits′ NCVs and 5th/2nd digits′ NCVs ratio.
Statistical Analysis: The statistical analysis was performed by the SPSS package for statistics. Student t test and receiver operating characteristic were used.
Results: Although the ratio of PCN-1st digit did not differ significantly between the control group and the polyneuropathy group, there was a significant difference between CTS and PNP+CTS groups and the control group ( P < 0.001 and P < 0.001, respectively). The ratio of PCN-1st digit nerve conduction velocity was also significantly different between polyneuropathy and PNP+CTS groups ( P < 0.001).
Conclusion: To diagnose CTS on a background of polyneuropathy in mild cases in which sensory conduction is preserved, the ratio of sensory nerve conduction velocities of the palmar cutaneous nerve and the median nerve 1st digit-wrist segment may be a criterion.

Carpal tunnel syndrome, nerve conduction study, palmar cutaneous

© Copyright 2007 Neurology India.
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