RESUMO
Individuals with epilepsy commonly experience memory loss. We investigated the safety and tolerability of galantamine in treatment of memory loss in a pilot study of 28 patients with epilepsy, randomly assigned to galantamine (n=13) or placebo (n=15) and followed for a total of 12 weeks. Participants underwent blinded memory assessment at baseline and 12 weeks (Selective Reminding Test, 7/24 Spatial Recall). One participant in the galantamine group had a suspected recurrence of brain neoplasm and increased seizures; all other participants receiving galantamine showed no increase in seizure activity during the trial. Patients in both groups reported mild, tolerable side effects (headache, appetite suppression), with no difference between groups. No significant differences were observed on the memory measures when both groups were retested at Week 12. Galantamine appears to be safe and tolerable in patients with epilepsy. Further studies with larger samples and comparison with other cholinesterase inhibitors should be considered.
Assuntos
Inibidores da Colinesterase/uso terapêutico , Epilepsia/tratamento farmacológico , Galantamina/uso terapêutico , Transtornos da Memória/tratamento farmacológico , Nootrópicos/uso terapêutico , Adulto , Anticonvulsivantes/efeitos adversos , Anticonvulsivantes/uso terapêutico , Inibidores da Colinesterase/efeitos adversos , Método Duplo-Cego , Quimioterapia Combinada , Epilepsia/psicologia , Feminino , Galantamina/efeitos adversos , Humanos , Masculino , Transtornos da Memória/diagnóstico , Transtornos da Memória/psicologia , Rememoração Mental/efeitos dos fármacos , Pessoa de Meia-Idade , Testes Neuropsicológicos , Nootrópicos/efeitos adversosRESUMO
The processing of sequential evoked potentials (EPs) is investigated using two-dimensional processing techniques. Two-dimensional EP arrays or images are formed by stacking sequential recordings. Processing is accomplished in the frequency domain by 2-D low-pass filtering using Gaussian filters. Auditory brainstem responses (ABRs), which are the early auditory EPs, are used to investigate the effects of the 2-D filtering on real data. Gaussian filtering improves signal-to-noise ratios by reducing high frequency noise effectively in both intra-EP and inter-EP dimensions. Applications to intra-operative monitoring are simulated with real ABR data.