Table 1.

Summary of LGS features over time in case series.

ACTH indicates adrenocorticotropic hormone; BA, background activity; CI; cognitive impairment; DD, developmental delay; DR, developmental regression; F, female; FL, frontal lobectomy; F/U, follow-up; HP, hemiparesis; IU, intrauterine; M, male; mo, months; NA, information not available; None, the symptom or feature was not present; OFR, orbital frontal resection; SSW, slow spike–wave discharges; SW, spike–wave discharges; VI, visual impairment; wks, weeks; and yr, year(s).

^aSeizure types: A = atonic; AA = atypical absence; CP = complex partial; FM = focal motor; IS = infantile spasms; M = myoclonic; P = partial; PMF = partial multifocal; SI = startle-induced; T = tonic; TC = tonic–clonic.

^bSudden unexpected death occurred at age 12.

^cSeizures occurred when patient discontinued seizure treatment due to acute depression.