Visual-evoked potential predicts the efficacy of the optical canal decompression for traumatic optic nerve neuropathy showing blindness: A case report.

Autor:	Otsu Y; Department of Neurosurgery, Kurume University School of Medicine, Kurume City, Japan., Komaki S; Department of Neurosurgery, Kurume University School of Medicine, Kurume City, Japan., Takeshige N; Department of Neurosurgery, Kurume University School of Medicine, Kurume City, Japan., Sakata K; Department of Neurosurgery, Kurume University School of Medicine, Kurume City, Japan., Morioka M; Department of Neurosurgery, Kurume University School of Medicine, Kurume City, Japan.
Jazyk:	angličtina
Zdroj:	Surgical neurology international [Surg Neurol Int] 2023 Jul 14; Vol. 14, pp. 245. Date of Electronic Publication: 2023 Jul 14 (Print Publication: 2023).
DOI:	10.25259/SNI_450_2023
Abstrakt:	Background: The indication for surgical optic canal decompression (OCD) for traumatic optic neuropathy (TON) remains controversial because there is no reliable predictor of a good outcome. We report the case of a blind patient with TON whose remaining visual-evoked potential (VEP) suggested recovery potential of the injured optic nerve after OCD. Case Description: A 48-year-old man had fallen from a height of 7 m, striking his head. He immediately complained of right-eye blindness. He had no light perception and the direct light reflex disappeared from the right pupil, although there was no fracture or traumatic lesion on computed tomography and magnetic resonance imaging. Because the amplitude of the VEP with the right eye stimulation remained unchanged, we performed the right OCD. During surgical OCD, the amplitude and latency of VEP began to improve. Finally, the visual field improved in almost all directions, and eyesight improved to 0.2. Conclusion: The retained VEP activity in TON may suggest the recovery potential of the injured optic nerve, even in cases of blindness. It is possible that VEP is an indicator of aggressive treatment for TON such as OCD. Competing Interests: There are no conflicts of interest. (Copyright: © 2023 Surgical Neurology International.)
Databáze:	MEDLINE
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