Author/Editor		Podnar, Simon; Vodušek, David B; Tršinar, Bojan; Rodi, Zoran
Title		A method of uroneurophysiological investigation in children
Type		članek
Source		Electroencephalogr Clin Neurophysiol, Evoked potentials
Vol. and No.		Letnik 104
Publication year		1997
Volume		str. 389-92
Language		eng
Abstract		Characteristics and reproducibility of bulbocavernosus reflex (BCR) and pudendal somatosensory evoked potentials (PSEP) elicited by mechanical stimulation in children were tested. Twenty-five male children aged 5-14 years without uroneurological complaints were enrolled in the study. In addition to electrical stimulation, a specially constructed electromechanical hammer triggered by an oscilloscope was used for mechanical stimulation of distal penic. All responses were detected by surface electrodes. The latencies and amplitudes of averaged as well as latencies of single BCR on single and double electrical stimuli were determined. Mechanical stimulation was described as much less unpleasant than electrical stimulation. Both mechanical/electrical stimulation elicited consistent and reproducible responses in high percentages of children (BCR: average, 80%/71%, single, 94%/100%, respectively). BCR latencies were significantly longer and PSEP amplitudes were significantly higher on mechanical stimulation. The compliance with mechanical was much better than with the electrical stimulation and the former can be recommended for clinical use. The effective mechanical stimulus delivered by a particular mechanical stimulator has a characteristic "delay" (as to the actual point of triggering the oscilloscope ray) which influences the latency reading of responses; appropriate control data are therefore necessary.
Descriptors		EVOKED POTENTIALS, SOMATOSENSORY PHYSICAL STIMULATION LUMBOSACRAL PLEXUS ELECTRIC STIMULATION PENIS CHILD CHILD, PRESCHOOL ADOLESCENCE