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NR 10-12/2005
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Wzrokowe potencjały
wywołane u dzieci leczonych wersenianem sodowo-wapniowym z
powodu podwyższonego poziomu ołowiu we krwi – badanie
prospektywne
Visual evoked potentials in
children cured with sodium-calcium versenate because of high
blood lead level – the prospective study
Dorota Pojda-Wilczek1, Ewa
Herba1, Barbara Schneiberg2
1Z Katedry i Oddziału Klinicznego Okulistyki ¦l±skiej
Akademii Medycznej
Szpital Specjalistyczny nr 1 w Bytomiu
Kierownik: prof. dr hab. n. med. Stefan M. Pojda
2Z Katedry i Kliniki Pediatrii, Nefrologii i
Endokrynologii Dziecięcej ¦l±skiej Akademii Medycznej w Zabrzu
Kierownik: prof. dr hab. n. med. Antoni Dyduch |
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| Summary: |
Purpose: To find
out if blood lead level (Pb-B) changes have influence on
visual evoked potentials.
Material and methods: 18 children (36 eyes)
treated with CaNa2EDTA because of chronic environmental
lead poisoning were examined two times: first at age 2 –
15.5 (mean 8) years and second 4 years later. For
pattern VEP LKC equipment, UTAS E-2000 program and
stimulations of 13’, 26’, 52’, 105' were used. P100
amplitude and latency were calculated.
Results: Pb-B was decreased from 150-486 (mean
262) µg/l to 42-248 (mean 103) µg/l. After 4 years, P100
latency was significantly delayed in children with Pb-B
above 100 µg/l at second examination. In children with
Pb-B below 100 µg/l no significant differences between
two consecutive examinations were observed. There were
no significant differences in P100 amplitude.
Conclusions: Delayed P100 latency of
PVEP in children is permanent but non-progressive if
Pb-B is lower than 100 µg/l. |
| Słowa kluczowe: |
potencjały wywołane
wzrokowe, zatrucie ołowiem, dzieci. |
| Key words: |
visual evoked potentials,
lead poisoning, children. |
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