RESUMEN
OBJECTIVE: The etiology of persistent memory complaints after concussion is poorly understood. Memory perfectionism (highly valuing memory ability and intolerance of minor memory lapses) may help explain why some people report persistent subjective memory problems in the absence of corresponding objective memory impairment. This study investigated the relationship between memory perfectionism and persistent memory complaints after concussion. METHODS: Secondary analysis of baseline data from a randomized controlled trial. Adults (N = 77; 61% women) with persistent symptoms following concussion were recruited from outpatient specialty clinics. Participants completed the National Institutes of Health Toolbox Cognition Battery, Test of Memory Malingering-Trial 1, and questionnaires measuring memory perfectionism (Metamemory in Adulthood-Achievement subscale), forgetfulness and other postconcussion symptoms (Rivermead Postconcussion Symptoms Questionnaire; RPQ), and depression (Patient Health Questionnaire-2) at M = 17.8 weeks postinjury. Patients with versus without severe memory complaints (based on the RPQ) were compared. RESULTS: Memory perfectionism was associated cross-sectionally with severe memory complaint, after controlling for objective memory ability, overall cognitive ability, and depression (95% confidence interval for odds ratio = 1.11-1.40). Sensitivity analyses showed that this relationship did not depend on use of specific objective memory tests nor on inclusion of participants who failed performance validity testing. In a control comparison to test the specificity of identified relationships, memory perfectionism was not associated with severe fatigue (95% confidence interval for odds ratio = 0.91-1.07). CONCLUSIONS: Memory perfectionism may be a risk factor for persistent memory symptoms after concussion, with potential relevance to the spectrum of functional cognitive disorders more broadly.
Asunto(s)
Conmoción Encefálica , Trastornos del Conocimiento , Síndrome Posconmocional , Adulto , Conmoción Encefálica/psicología , Cognición , Trastornos del Conocimiento/diagnóstico , Femenino , Humanos , Masculino , Trastornos de la Memoria/complicaciones , Trastornos de la Memoria/etiología , Pruebas Neuropsicológicas , Síndrome Posconmocional/complicaciones , Síndrome Posconmocional/diagnósticoRESUMEN
Deep brain stimulation (DBS) of the subgenual cingulate gyrus (SCG) is a promising investigational intervention for treatment-resistant depression (TRD), but long-term outcome data are limited. Serial neuropsychological evaluations, using a comprehensive battery, were conducted on four subjects with TRD prior to surgery, and up to 42 months post-operatively. Reliable change methodology suggested general stability and/or select statistically reliable improvement in cognitive abilities over time. This is the first known set of multi-year neuropsychological follow-up data for SCG DBS for TRD. Observed improvements are likely attributable to reduced depressive symptomatology, recovery of functional capacities, and/or specific practice effects of repeated assessment.
Asunto(s)
Cognición/fisiología , Estimulación Encefálica Profunda/métodos , Trastorno Depresivo Resistente al Tratamiento/terapia , Giro del Cíngulo/fisiología , Adulto , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas , Escalas de Valoración Psiquiátrica , Resultado del TratamientoRESUMEN
OBJECT: Deep brain stimulation (DBS) has been recently investigated as a treatment for major depression. One of the proposed targets for this application is the subcallosal cingulate gyrus (SCG). To date, promising results after SCG DBS have been reported by a single center. In the present study the authors investigated whether these findings may be replicated at different institutions. They conducted a 3-center prospective open-label trial of SCG DBS for 12 months in patients with treatment-resistant depression. METHODS: Twenty-one patients underwent implantation of bilateral SCG electrodes. The authors examined the reduction in Hamilton Rating Scale for Depression (HRSD-17) score from baseline (RESP50). RESULTS: Patients treated with SCG DBS had an RESP50 of 57% at 1 month, 48% at 6 months, and 29% at 12 months. The response rate after 12 months of DBS, however, increased to 62% when defined as a reduction in the baseline HRSD-17 of 40% or more. Reductions in depressive symptomatology were associated with amelioration in disease severity in patients who responded to surgery. CONCLUSIONS: Overall, findings from this study corroborate the results of previous reports showing that outcome of SCG DBS may be replicated across centers.
Asunto(s)
Estimulación Encefálica Profunda/métodos , Trastorno Depresivo Mayor/fisiopatología , Trastorno Depresivo Mayor/terapia , Giro del Cíngulo/fisiología , Adulto , Antidepresivos/uso terapéutico , Cuerpo Calloso , Estimulación Encefálica Profunda/efectos adversos , Estimulación Encefálica Profunda/normas , Trastorno Depresivo Mayor/tratamiento farmacológico , Resistencia a Medicamentos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Proyectos Piloto , Estudios Prospectivos , Reproducibilidad de los Resultados , Índice de Severidad de la Enfermedad , Resultado del TratamientoRESUMEN
BACKGROUND: Human T-cell lymphotropic virus type I (HTLV-I)-associated myelopathy/tropical spastic paraparesis (HAM/TSP) in British Columbian Coastal Natives has, to date, been a clinical and laboratory diagnosis. However, magnetic resonance imaging (MRI) abnormalities have been well-described in other populations in which HAM/TSP is endemic. METHODS: In order to assess the usefulness of MRI as a diagnostic tool in this population, we compared scans of HAM/TSP patients with those of HTLV-I positive non-HAM/TSP British Columbian Coastal Natives (carriers) and multiple sclerosis patients presenting with progressive paraparesis. RESULTS: The typical nonspecific findings of thoracic cord atrophy and increased signal in the periventricular and subcortical white matter on T2-weighted images were confirmed in the HAM/TSP patients. Despite a lack of specificity of the MRI findings between HAM/TSP patients and HTLV-I carriers, criteria that could effectively differentiate HAM/TSP patients from multiple sclerosis patients with similar clinical presentations were determined. CONCLUSIONS: Clinical and radiological correlations suggest that longitudinal MRI investigations charting the course of HAM/TSP may reveal the clinical significance of these lesions and further define the role of MRI in the diagnosis of this entity. Magnetic resonance imaging is an important supplement to immunological and clinical data in differentiating multiple sclerosis from HAM/TSP.
Asunto(s)
Esclerosis Múltiple/diagnóstico , Paraparesia Espástica Tropical/diagnóstico , Encéfalo/patología , Colombia Británica/epidemiología , Diagnóstico Diferencial , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Esclerosis Múltiple/líquido cefalorraquídeo , Esclerosis Múltiple/epidemiología , Paraparesia Espástica Tropical/líquido cefalorraquídeo , Paraparesia Espástica Tropical/epidemiología , Estudios Retrospectivos , Médula Espinal/patologíaRESUMEN
A case is reported of a 54-year-old female patient with schizophrenia and cognitive impairment. Her memory dysfunction improved following the addition of donepezil to quetiapine. The possible implications for future studies are reviewed.