[A proposal for a clinical registry of dementias]. / Propuesta para un registro clinico de demencias.

AIMS: We outline a proposal for the structural and functional features needed to develop a registry of dementias which can be used to collect standardised information that is both reliable and valid concerning cases of dementia in the specialised health care centres within a particular geographical area. DEVELOPMENT: Due to the shortage of information about aspects concerning the impact of dementias on the health care system (in terms of the usage of resources and patterns of detection, referral, diagnosis and treatment in usual clinical practice in primary and secondary care), a sequential implementation of the registry is proposed so that it can be adapted to each health district or region. The first step is to identify the cases and sources of information; second, a system for collecting data must be developed that allows information to be gathered in a standardised manner while at the same time making it possible to work in close collaboration with the specialists who diagnose dementia; and, third, it must be set up with the logistics and staff needed to centralise all the functions and activities of the registry. CONCLUSIONS: Epidemiological surveillance is an essential instrument for planning, managing and distributing community health resources, for following up the natural history of chronic diseases and for assessing the impact of programmes of prevention. In this respect, and from a functional point of view, the proposed registry of dementias meets all the basic requirements of epidemiological surveillance.

[Clinical-therapeutic study of dementia in people with Down syndrome and the effectiveness of donepezil in this population]. / Estudio clinicoterapéutico de la demencia en las personas con síndrome de Down y eficacia del donepecilo en esta población.

INTRODUCTION: People with Down syndrome have an early aging process, especially form their 40s. There is a significant average of them who initiate, from that age on, a progressive decline of their cognitive and functional abilities, due to a primary degenerative process Alzheimer's disease type. When assessing response to treatment with, pilot clinical trials on this population have demonstrated real benefits therapeutically. AIMS: To assess the efficacy and safety of a pharmacological treatment with donepezil over cognitive and behavioral disturbances on patients with Down syndrome older than 40 years, areas where family and professional educators of reference have observed cognitive and behavioral changes in comparison with their previous level of disability. PATIENTS AND METHODS: Patients have been selected from different institutions affiliated at the Catalan Foundation for the Down syndrome and by the Catalan Federation Pro Persons with Psychic Disability. Several deterioration, behavioral and functional assessment scales have been used, all of them validated into this population. RESULTS: The results of study demonstrated that donepezil slowed the progression of the cognitive dysfunction, especially during the first three months of treatment. This occurred for both cognitive and social-behavioral outcomes. CONCLUSIONS: Donepezil appears to be effective in the treatment of cognitive and behavioural disturbances associated with the progressive dementia syndrome in Down's. However, the sample sizes used in this, and all published studies are small and this emphasizes the need for a larger, multi-center trial to fully evaluate the nature and extent of the response of Down's syndrome patients to anticolinesterase therapy.