Nerve Conduction Studies in the Upper Limb in the Malwa Region-Normative Data
ABSTRACT Objective: To establish the normal electrophysiological data for the median and the ulnar nerves in normal healthy adults in the Malwa region of Punjab, India. Methods: Nerve conduction studies were performed prospectively in the upper limbs of 100 carefully screened, healthy individual...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
JCDR Research and Publications Private Limited
2013-02-01
|
| Series: | Journal of Clinical and Diagnostic Research |
| Subjects: | |
| Online Access: | https://jcdr.net/articles/PDF/2727/4-%204804_E(C)_PF1(M)_F(P)_PF1(P)_PFA(P)_U.pdf |
| Summary: | ABSTRACT
Objective: To establish the normal electrophysiological data
for the median and the ulnar nerves in normal healthy adults in
the Malwa region of Punjab, India.
Methods: Nerve conduction studies were performed prospectively in the upper limbs of 100 carefully screened, healthy individuals of either sex, who were between the ages of 20 and 60
years, by using a standardized technique.
Results: Motor studies: The median distal latency (DL) in
men was 3.4 (0.2) ms, the amplitude (CMAPA) was 10.80 (2.8)
mV, the conduction velocity (MNCV) was 55.6 (2.5) m/s and
the F-wave (min latency) was 27.57±2.54(21.5-34.2). In the
ulnar nerve , the motor DL was 2.34 (0.25) ms, the amplitude
(CMAPA) was 9.8(2.6) mV, MNCV was 63.4 (3.0) m/s and the
F-Wave(min latency) was 26.29±2.12(21.6-34.7). In the sensory
studies, the median nerve DL was 2.0(0.35) ms, SNCV was
53.4±3.0 m/s and the amplitude (SNAPA)was 59.3 (16.4) µV for
men and it was 68.7(28.4) µV for women. For the ulnar nerve in
men, the DL was 1.85(0.25)ms, SNCV was 55.5 (4.1) m/s and
the amplitude(SNAPA) was 55.5 (18.4) µV for men and it was
64.9 (16.8) µV for women. Only the gender showed a statistically significant effect on the sensory nerve action potential for
the median (p < 0.04) and the ulnar nerves (p < 0.041) .
Conclusion: The normative conduction parameters of the
commonly tested nerves in the upper limb were established in
our EMG lab. The mean motor nerve conduction parameters
for the median and the ulnar nerves correlated favourably with
the existing literature data. However, for the sensory nerves, a
higher value for the nerve action potential amplitude was demonstrated in this study. |
|---|---|
| ISSN: | 2249-782X 0973-709X |