Auditory brainstem evoked potentials at term children after neonatal encephalopathy hypoxic isquemic

Abstract:

Objective: this study was designed to characterize the differences between normal children and those with neonatal encephalopathy, regarding the brain auditory evoked potentials (BAEPs), these differences may be which may be used as an exploratory guide of the brain stem condition. Methods. A sample of 34 infants suffering from neonatal encephalopathy (NE) and 34 healthy children were studied. Using the BAEP technique, the latencies and amplitudes of the waves I, II, III, and V, were measured, as well as the intervals I-III, III-V, and IV. The differences between groups were evaluated through a analysis of variance and a conglomerate analysis. Results: the latencies of the waves I, II, and V, were more prolonged in the group of children with NE than in the group of healthy children, and the amplitudes of the NE group were larger than controls. The intervals I-III and IV and waves III and V, were also different in both groups. The conglomerate analysis formed three different functional profiles in alI children: rapid, intermediate, and a slow time responders. Slow responders were exclusively found in children with NE. Conclusions. The BAEPs of infants with NE showed larger wave latencies and increased wave amplitudes, when compared to normal children. These statistical analyses classified them in different functional profiles, which may be useful in detecting children with greater risk of neurological sequels.

Año de publicación:

2008

Keywords:

Fuente:

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