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Clinical Correlates of Midline SpikesAn Analysis of 21 Patients
Albert Ehle, MD;
Schenley Co, MD;
Mary Gene Jones
Arch Neurol. 1981;38(6):355-357.
Abstract
• Twenty-one children had interictal EEGs showing spikes located at the Fz, Cz, and Pz electrodes; their EEGs were compared with those of age-matched children referred to our laboratory (group 1, 63 children) and children with C3 and C4 spikes (group 2, 41 children). Midline spikes correlated well with a history of seizures (91% vs 73% in group 1 and 76% in group 2) and neurologic abnormality (38% vs 29% in group 1 and 22% in group 2). No patient had progressive neurologic disease or brain tumor. There are two different possible mechanisms in the genesis of midline spikes. In the majority of children, midline spikes may represent generalized epileptiform abnormalities; in a small subgroup, they may be analogous to C3 and C4 spikes and be generated by a cortical epileptogenic focus.
Author Affiliations
R EEG T
From the Department of Neurology, South-western Medical School, University of Texas Health Sciences Center (Drs Ehle and Co), and the EEG Laboratory, Children's Medical Center (Ms Jones), Dallas.
Footnotes
Accepted for publication Sept 13, 1980.
Read in part before the meeting of the American EEG Society, Atlanta, Sept 19, 1979.
Reprint requests to Department of Neurology, Southwestern Medical School, 5323 Harry Hines Blvd, Dallas, TX 75235 (Dr Ehle).
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