Table 1

Patient characteristics (n = 40)

No. of patients
Age (yr)
 Median45
 Range22–74
Sex
 Male25
 Female15
Karnofsky performance status
 <70%3
 70–80%14
 90–100%21
Histological diagnosis
 Glioblastoma multiforme34
 Anaplastic astrocytoma5
 Anaplastic oligodendroglioma1
Concomitant medications
 Group A
  No. of patients31
  Decadron25
  Phenytoin20
  Carbamazepine9
  Phenobarbital2
 Group B
  No. of patients9
  Decadron4
  Gabapentin2
  No anticonvulsants7