Example of amplitude-integrated electroencephalography (aEEG) and flash visual evoked potentials of a preterm infant born at 24+5 weeks’ of gestation.

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Presentation transcript:

Example of amplitude-integrated electroencephalography (aEEG) and flash visual evoked potentials of a preterm infant born at 24+5 weeks’ of gestation. Example of amplitude-integrated electroencephalography (aEEG) and flash visual evoked potentials of a preterm infant born at 24+5 weeks’ of gestation. (A) Day 3 of life: no intraventricular haemorrhage (IVH), no posthaemorrhagic ventricular dilatation (PHVD), aEEG score 0=normal for gestational age; background pattern fluctuating between burst-suppression and discontinuous pattern; sleep-wake cycling (SWC) present. N2 latency 320 ms (=normal range for gestational age). Ventricular width: right side 9 mm, left side 9.5 mm (both below 97th percentile). (B) Day 14 of life: IVH III (both sides), PHVD, 2 days before external ventricular drainage (EVD) placement, aEEG score 2=severely abnormal; background pattern fluctuating between burst-suppression pattern and flat trace; no SWC. N2 latency 410 ms (=3SD above normal range). Ventricular width: right side 14 mm, left side 16 mm (both above 97th percentile+4 mm). (C) Day 27 of life: 12 days after EVD placement. aEEG score 1=mildly abnormal for gestational age; background pattern fluctuating between discontinuous pattern and continuous pattern; SWC present. N2 latency 310 ms (=normal range for gestational age). Ventricular width: right side 10.5 mm, left side 9 mm (right side above, left side below 97th percentile). (D) Ventricular index of the same patient, X=right side, О=left side. Katrin Klebermass-Schrehof et al. Arch Dis Child Fetal Neonatal Ed 2013;98:F291-F297 Copyright © BMJ Publishing Group Ltd & Royal College of Paediatrics and Child Health. All rights reserved.