Table 16.2.

Seizure outcomes in surgery for brain tumors associated with preoperative epilepsy

Tumor type	Approximate seizure freedom rates	Seizure freedom predictors	References
Glioneuronal tumors	70–90%	Gross total resection, early surgery, absence of generalized seizures	Giulioni et al. (2005); Park et al. (2008); Chang et al. (2010); Englot et al. (2012a); Southwell et al. (2012)
Low-grade gliomas	65–80%	Gross total resection, early surgery, localized EEG, less severe epilepsy	Luyken et al. (2003); Zaatreh et al. (2003); Benifla et al. (2006); Chang et al. (2008a); Englot et al. (2011)
Meningiomas	60–80%	Less peritumoral edema	Chow et al. (1995); Lieu and Howng (2000); Chaichana et al. (2013); Fang et al. (2013); Zheng et al. (2013)

EEG, electroencephalogram.