Development of Reference Values of Nerve Conduction Study Among Healthy Subjects from Karad

Abstract

Background- Nerve Conduction velocity tests are one of the electro diagnostic tools used to primarily check the conduction velocity of the nerves. There are two main categories motor and sensory nerve conduction velocity, where conduction velocity of both motor and sensory nerves can be calculated using various points of stimulation and appropriate points of placing active, inactive and ground electrode.

Objectives- Main aim of this study is to check if geographical variants can have a huge impact on the conduction velocity when performed in the normal population of karad.

Methods- this study was performed on 100 normal subjects 50 male and 50 female, aged between 18 to 28 years. This study was managed in Physiology department of Krishna Medical College, with optimum temperature and adequate pre-evaluation tests. Motor nerve conduction velocity of median, ulnar, radial, tibial and peroneal nerve was conducted orthodrombically and Sensory nerve conduction velocity was conducted antidromically.

Results- means and SD of all the nerve conductions of both sensory and motor was analysed separately for male and female subjects. Correlation coefficient and linear regression with respect to height was seen with radial and sensory nerve conduction velocity tests

Conclusions- The study concludes that nerve conduction mean parameters for all nerves were consistent by statistics from other Indian and global studies. Overall, both age and height showed an inverse relationship with NCS values. This study will help establish the normal values of nerve conduction both sensory and motor with respect to upper and lower limb.