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NR 10-12/2006
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Wieloogniskowe
potencjały oscylacyjne (mfOPs) u chorych z zakrzepem żyły
środkowej siatkówki
Multifocal oscillatory
potentials (mfOPs) in patients with central retinal vein
occlusion
Joanna A. Stępień1,2, Herbert
Jagle1, Anne Kurtenbach1, Maciej W.
Stępień1, Wojciech Omulecki2
1 Z Kliniki Okulistycznej Uniwersytetu w Tybindze w
Niemczech
Kierownik: prof. dr hab. n. med. Eberhart Zrenner
2 Z Kliniki Chorób Oczu Uniwersytetu Medycznego w
Łodzi
Kierownik: prof. dr hab. n. med. Wojciech Omulecki |
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| Summary: |
Purpose: To
evaluate usefulness of multifocal oscillatory potentials
(mfOPs) in diagnostics in patients with retinal vein
occlusions.
Material and methods: The Visual Evoked Imaging
System (VERIS, version 4.9) was used to stimulate the
visual system to elicit mfOPs from 103 areas subtending
the central 70-80° of the retina in three patients with
central or branch retinal vein occlusions. Two
stimulating conditions were used. For each subject, the
mean first- and second-order kernel responses from
occlusion area, were analyzed and compared with the
fellow eye and control subjects results.
Results: In retinal areas without circulatory
disturbances in fluorescein angiography all mfOPs
components were present. In a patient with branch
retinal vein occlusion in the area without capillary
perfusion mfOPs responses were not detectable.
Conclusions: The mfOPs are in a large extent
dependent on a proper retinal circulation. The recording
of mfOPs may be useful in clinical diagnosis, to asses
circulatory disturbances in internal layers of the
retina and in differentiation of ischemic from non
ischemic retinal vein occlusions. |
| Słowa kluczowe: |
elektroretinogram
wieloogniskowy, wieloogniskowe potencjały oscylacyjne,
niedokrwienie, zakrzep żyły środkowej siatkówki. |
| Key words: |
multifocal
electroretinogram, multifocal oscillatory potentials,
ischaemia, central retinal vein occlusion (CRVO). |
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