Abstract:
OBJECTIVE: To study the changes occurring in electrophysiological parameters such as nerve conduction velocity (NCV), conduction time (CT) and amplitude of median (sensory and motor) nerve action potential in patients with carpal tunnel syndrome (CTS). DESIGN: Experimental observational study. SETTING: This study was carried out in Department of Physical Medicine and Rehabilitation, Jinnah Postgraduate Medical Centre, Karachi. DURATION: August 2009 to September 2010. METHODOLOGY: Subjects were patients of carpal tunnel syndrome (n=30) and normal healthy persons (n=20) were examined during the course of present study. The electro-diagnostic recording of effected 33 wrists (17 unilateral and 8 bilateral) were obtained by electromyography, using “surface electrodes” for determination of median motor nerve conduction velocity (M-MNCV) and “ring-electrodes” for determination of median sensory nerve conduction velocity (M-SNCV). The recordings of 5 patients were out of range of electromyography, therefore excluded from the study. Besides the NCV, other parameters such as, median motor conduction time (M-MCT), amplitude of motor action potential (MAP), amplitude of sensory action potential (SAP) and median sensory latency (M-SL) were also recorded in patients and healthy subjects for comparison of our results. Data was analyzed statistically on SPSS version 17.0. RESULTS: Among 30 patients with suspected CTS, 5 patients has unobtainable electro-diagnostic results. In 33 wrists of 25 patients M-MCT significantly increased (5.26 ± 0.36 m sec) as compared with normal subjects (4.12 ± 0.12 m sec P
Page(s):
9-13
DOI:
DOI not available
Published:
Journal: Isra Medical Journal, Volume: 4, Issue: 1, Year: 2012