Frost JD, Kellaway P, Hrachovy RA, Glaze DG, Mizrahi EM. Changes in epileptic spike configuration associated with attainment of seizure control.
Ann Neurol 1986;
20:723-6. [PMID:
3101580 DOI:
10.1002/ana.410200612]
[Citation(s) in RCA: 30] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This study provides preliminary evidence that computer-derived parameters of interictal spike waveforms can be used to assess seizure hazard in a quantitative manner. Thirteen children with spike foci and simple or complex partial seizures were studied before and during treatment with carbamazepine or phenobarbital; spike parameters were determined from 5- to 30-minute electroencephalographic samples obtained during non-rapid eye movement sleep. Measurements included spike amplitude, duration, and sharpness, and a mathematical combination of these three parameters (the composite spike parameter). Achievement of seizure control was associated with a decrease in spike amplitude, duration, and composite spike parameter, and an increase in normalized sharpness, compared to baseline values. These results suggest that this method may provide a prospective means for estimating drug efficacy that can be applied shortly after attainment of steady-state serum drug levels.
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