Table 4: Comparison of surgical techniques, seizure outcomes, and complications.

Author and yearTechniqueNo. of patientsEngels Class1 outcomeComplicationsMean followup (years)

Schramm et al. [10]Transylvian hemispherectomy2088%Mortality 5%
Infection 5%
3.8
Villemure and Daniel [9]Peri-insular hemispherotomy4390%Mortality 2% Hydrocephalus 2% Hemorrhage 5%9
Delalande et al. [11]Vertical hemispherotomy8374%Mortality 4% Hydrocephalus 16%4.4
Thomas et al.; our seriesPeri-insular hemispherotomy and posterior quadrantectomy3491.1%Mortality 0% Hydrocephalus 2.9% Pseudomeningocele 5.8%2.5