Resumen

MONTES BROWN, Julio. Potenciales evocados visuales en recién nacidos a término. Rev Cubana Pediatr [online]. 1999, vol.71, n.1, pp. 5-12. ISSN 1561-3119.

446 visual evoked potentials (VEP) were performed in 69 full-term newborns who were studied in state of wakefulness and spontaneous sleep by using LED monocular stimulation and 2 variants of time of analysis and frequency of stimulation (400 min and 2 Hz vs ls and 1 Hz). The correlations of the latency and width parameters with the different perinatal variables were stablished. A higher number of responses was obtained with the utilization of a time of analysis of 1s and 1 Hz of stimulation frequency. P2 and N2 components appeared in 100 % of the identified responses. There was a prolongation of latency and falls of width of the main components on passing from the state of wakefulness to sleep. No correlation was found between the weight, head circumference and sex variables with P2, but it was observed with the hours of life of the newborn. The tables of normative values of latencies and width of the VEP for the studied conditions are shown. The results are similar to those described in medical literature.

Palabras clave : EVOKED POTENTIALS, VISUAL; INFANT, NEWBORN [physiology]; WAKEFULNESS; SLEEP.

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