Carpal tunnel syndrome in the elderly: nerve conduction parameters.

Abstract:

OBJECTIVE:To establish nerve conduction parameters for carpal tunnel syndrome (CTS) electrodiagnosis in the elderly. METHOD:Thirty healthy subjects (65-86 years), 9 male and 21 female, were studied. Routine median and ulnar sensory and motor nerve conduction studies, median mixed palmar latency, comparative latency techniques median to ulnar (sensory, mixed and motor lumbrical-interossei), median to radial (sensory), and combined sensory index (CSI) were performed in both hands. RESULTS:The upper limits of normality (97.5%) were: median sensory distal latency 3.80 ms (14 cm); median motor distal latency 4.30 ms (8 cm); median palmar latency 2.45 ms (8 cm); lumbrical-interossei latency difference 0.60 ms (8 cm); comparative median to radial 0.95 ms (10 cm); comparative median to ulnar 0.95 ms (14 cm); comparative palmar median to ulnar 0.50 ms (8 cm); and CSI 2.20 ms. Sensory and mixed latencies were measured at peak. CONCLUSION:Our results establish new nerve conduction parameters for mild CTS electrodiagnosis in the elderly and will be helpful to reduce the number of false positive cases in this age.

journal_name

Arq Neuropsiquiatr

authors

Naves TG,Kouyoumdjian JA

doi

10.1590/s0004-282x2010000100019

subject

Has Abstract

pub_date

2010-02-01 00:00:00

pages

87-92

issue

1

eissn

0004-282X

issn

1678-4227

pii

S0004-282X2010000100019

journal_volume

68

pub_type

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