Abstract The concept of pseudo-pseudo seizures is often confused with epileptic seizures characterized by excessive or simultaneous anomalous neuronal activity, and with non-epileptic psychogenic seizures, which are known for their involuntary movements and decreased self-control that can mimic epilepsy, without presenting the previously described cortical alterations. Currently, these two types of seizures represent a challenge due to their similar clinical presentation, however semiology and precise office studies allow a correct clinical approach and differential diagnosis. Among epileptic seizures that generate further diagnostic difficulties and confusion are frontal lobe and temporal lobe seizures. Recognizing the semiological characteristics that can occur in these types of seizures and identifying the differences found between epileptic and non-epileptic psychogenic seizures is essential to avoid a misdiagnosis of a pseudo-pseudoseizure.

RESUMEN Introducción: El trastorno obsesivo-compulsivo se define por la presencia de obsesiones y compulsiones que ocasionan ansiedad y malestar marcados, y se ha asociado con una alteración en los circuitos cortico-estriado-tálamo-corticales. Tras tratamiento, alrededor de la mitad de los pacientes permanecen con síntomas discapacitantes. La estimulación cerebral profunda ha mostrado ser una alternativa efectiva al tratamiento usual. Métodos: Reporte de caso. Presentación del caso: Una mujer de 54 años con diagnóstico de trastorno obsesivo-compulsivo resistente a tratamiento fue tratada con estimulación cerebral profunda del brazo anterior de la cápsula interna. Se obtuvieron imágenes moleculares antes y después de la intervención y fueron correlacionadas con el cuadro clínico. Conclusiones: La estimulación magnética profunda puede ser una alternativa terapéutica al tratamiento usual en el trastorno obsesivo compulsivo resistente a tratamiento, y puede correlacionarse con cambios funcionales en estructuras anatómicas de sospecha.

ABSTRACT Introduction: Obsessive-compulsive disorder is defined by the presence of obsessions and compulsions that cause marked anxiety or distress and has been associated with a disruption in corticostriato-thalamo-cortical circuitry. After treatment, around 50% of patients continue to experience incapacitating symptoms. Deep-brain stimulation has been shown to be an effective therapeutic alternative to regular treatment. Methods: Case report. Case presentation: A 54-year-old woman with a diagnosis of treatment-resistant obsessive-compulsive disorder was treated with deep-brain stimulation of the anterior limb of the internal capsule. Molecular imaging before and after the procedure was obtained and correlated with clinical features. Conclusions: Deep-brain stimulation may be a therapeutic alternative to regular care in treatment-resistant obsessive-compulsive disorder and can be correlated to functional changes in suspected anatomical structures.

Propósito Analisar a eficácia da eletroconvulsoterapia para o tratamento da depressão e/ou psicoses refratária ao tratamento medicamentoso em pacientes com doença de Parkinson.Métodos Um estudo retrospectivo foi realizado com pacientes tratados com a eletroconvulsoterapia, durante o período entre 2002 e 2013. Uma revisão da literatura foi realizada.Resultados Um total de 27 pacientes foram incluídos. Em relação ao diagnóstico neuropsiquiátrico, 14 pacientes tinham depressão maior, 12 pacientes tiveram tanto psicoses e depressão, e apenas um paciente tinha isolado psicoses. O número médio de sessões de eletroconvulsoterapia foi de 12 ± 2,8. Após a eletroconvulsoterapia, todos os pacientes apresentaram uma melhora estatisticamente significativa no Brief Psychiatric Rating Scale (redução de 52% de pontos) e Hamilton Depression Rating Scale (redução de 50% de pontos), independente da presença de psicose, depressão ou ambos.Conclusão Eletroconvulsoterapia é eficaz para o tratamento de sintomas neuropsiquiátricos refractários na doença de Parkinson.

Purpose To analyze the effectiveness of electroconvulsive therapy for the management of depression and/or psychosis refractory to drug therapy in patients with Parkinson disease.Methods A retrospective study was carried out including patients treated with electroconvulsive therapy during the period between 2002 and 2013. A review of the literature was performed.Results A total of 27 patients were included. In regards to the neuropsychiatric diagnosis, 14 patients had major depression, 12 patients had both psychosis and depression, and only one patient had isolated psychosis. The mean number of electroconvulsive therapy sessions was 12 ± 2.8. After electroconvulsive therapy, all patients showed a statistically significant improvement in the Brief Psychiatric Rating scale (reduction of 52% points) and Hamilton Depression Rating Scale (reduction of 50% points) independent of the presence of psychosis, depression or both.Conclusion Electroconvulsive therapy is effective for the treatment of refractory neuropsychiatric symptoms in Parkinson’s disease.