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Journal of Korean Neurosurgical Society 1987;16(4): 995-1004.
Clinical Applications of Visual Evoked Potentials.
Kwang Hwi Ok, Heung Sup Chung, Jung Keun Suh, Hoon Kap Lee, Jeong Wha Chu
Department of Neurosurgery, College of Medicine, Korea University, Seoul, Korea.
Visual evoked potentials were elicited by flash in 29 patients with a variety of cerebral lesions and in 10 normal controls. In 12 patients with focal brain lesions, no wave form could be recorded in one side. Of the remaining 23 sides, the average P1 latency showed no difference from that of the normal controls. In 17 patients with diffuse brain lesions no wave form could be elicited in 12 sides. Average P1 latency of remaining 22 sides showed statistlcally significant difference from that of normal controls. In this study it appears that delayed P1 latencies are associated with diffuse cerebral lesions rather than with localized lesions.
Key Words: Visual evoked potential; P1 latency; Focal brain lesion; Diffuse brain lesion
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