Zusammenfassung
Bericht über 20 Fälle, bei denen nur ein Teil der akustischen Hirnstammpotentiale registriert werden konnte. Bei 18 Ohren war nur das Potential I abzuleiten. Die Potentiale I und II, I–III und I–IV waren bei 4, 8 und 5 Ohren zu registrieren. Bei den untersuchten Fällen handelte es sich um Brückengliome (8), Akustikustumoren (4), West-Syndrom (2), Leukodystrophie (2), Fazialisneurinom (1), Epidermoidtumor (1), Brückenblutung (1) sowie um eine Erkrankung unbekannter Genese. Da bei 14 der 20 Patienten ein Tumor nachzuweisen war, sollte immer dann, wenn die akustischen Hirnstammpotentiale nicht vollständig registriert werden können, an einen raumfordernden Prozeß gedacht werden.
Summary
Twenty cases which showed partial loss of ABR waves were reported. Only wave I was recorded in 18 ears tested. Wave I and II; I–III; and I–IV responses were observed in four, eight, and five ears tested, respectively. Cases included pontine glioma (8), acoustic tumor (4), West syndrome (2), leukodystrophy (2), facial neurinoma (1), epidermoid tumor (1), pontine bleeding (1), and unknown cause (1). Fourteen of 20 were tumor cases. This fact indicates that if the ABR shows partial loss of waves, the examiner should first suspect the space-occupying lesions of the brain stem.
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Yagi, T., Kaga, K. & Baba, S. A study of cases with partial disappearance of the waves in the auditory brain stem response. Arch Otorhinolaryngol 226, 251–258 (1980). https://doi.org/10.1007/BF00455586
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DOI: https://doi.org/10.1007/BF00455586