Author/Authors :
Tiric-Campara, Merita Clinical Centre of Sarajevo University - Department of neurology, Bosnia and Herzegovina , Denislic, Miro University of Ljubljana - Medical faculty, Slovenia , Djelilovic-Vranic, Jasminka Clinical Centre of Sarajevo University - Department of neurology, Bosnia and Herzegovina , Alajbegovic, Azra Clinical Centre of Sarajevo University - Department of neurology, Bosnia and Herzegovina , Tupkovic, Emir Clinical Centre of Sarajevo University - Department of infectology, Bosnia and Herzegovina , Gojak, Refet Clinical Centre of Sarajevo University - Department of infectology, Bosnia and Herzegovina , Zorec, Rok Faculty of chemistry, Slovenia , Al-Hashel, Jasem Y. Ibn Sina Hospital - Neurology Department, Kuwait
Abstract :
Introduction: High intensity cutaneous stimulus transiently suppresses tonic voluntary muscle activity resulting in cutaneous silent period (CSP). Aim: The aim of our study was to evaluate the normal values of an onset latency LI, a late latency L2 and a duration of CSP after stimulating sensory fibres of the median nerve. Material and Methods: This prospective study was performed at the Neurology Department, Clinical Center of Sarajevo University in period from January 1st 2013 to December 1st 2013. In our study we examined 61 subjects. The group included our relatives, coworkers and friends. The informed consent from testing subjects was obtained. Results: The origin of silent period is stimulation of small A-delta nerve fibres. The pre-synaptic or post-synaptic interruption of the electrical volley to motor neurons is discussed. Median values of muscle activity suppression in healthy female is 55.0 ms (45.0-74.0) and 59.0 ms (52.0-67) male subjects. There is a correlation between the onset latency Lland the late L2 latency (p 0.03). In the on-going study it seems that delay of LI and shorter muscle activity suppression might provide a sign of small nerve fibres involvement. Conclusion: The use of CSP improves the value of neurophysiology examination.
