[Electroencephalographic findings in preterm neonates].

Background: The electroencephalogram (EEG) in the newborn period is highly superior to the clinical exam in the detection and prognosis of brain dysfunctions, since it allows continuous functional documentation of the brain at the patient's bedside in a non-invasive way. However, there is still some disagreement about these findings.

Objective: To describe the electroencephalographic findings in newborns with a history of prematurity.

[The record of sensitive nerve action potentials. Interelectrode distance in healthy children].

Background: Studies in adults show that with a 3 or 4 cm distance between active and reference electrodes, maximum amplitude and latency values of sensitive nerve action potentials are obtained. The purpose of this study was to identify, in healthy children, the interelectrode distances at which the amplitude and peak latency do not differ significantly from those obtained with the intereletrode distance at which the maximum values are obtained.

Methods: Four reference electrodes were placed at 1, 2, 3 and 4 cm distance from the active electrode.