Abstract
ANDERSON & TORRES (Electroenceph. Clin. Neurophysiol. 58:1984) demonstrated OER and PD within normal electroencephalographic (EEG) tracings of healthy very low birth weight infants (VLBW). We investigated this phenomenon in 11 very sick VLBW (BW 600-1200g, GA 26-32wk, age l-33d) with cerebral complications (hemorrhage, edema, leucamalacia), to see whether the incidence of OER and PD was different in this group indicating cerebral dysfunction. We recorded 6 EEG-channels (Fpl-T3,T3-01,T3-Cz,Fp2-T4,T4-02, T4-Cz). Optical stimulation was performed by single flashes and repeated flashes of 1-30/sec lasting 20 sec. Results: OER could be elicited in 10 of 11, PD in 7 of 11 tracings. Thus incidence was similar to healthy VLBW. Conclusion: OER and PD can be elicited even in very sick VLBW. They do not indicate cerebral integrity.
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Jorch, G., Schneider, G. OPTICAL EVOKED RESPONSES (OER) AND PHOTIC DRIVING (PD) IN VERY SICK PREMATURE INFANTS < 33 WK OF GESTATIONAL AGE (GA). Pediatr Res 22, 241 (1987). https://doi.org/10.1203/00006450-198708000-00168
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DOI: https://doi.org/10.1203/00006450-198708000-00168