[Mild behavioural impairment as an antecedent of dementia: presentation of the diagnostic criteria and the Spanish version of the MBI-C scale for its evaluation]

INTRODUCTION

Neuropsychiatric symptoms are common in dementia and also in previous stages such as mild cognitive impairment. Their presence is related to greater conversion to dementia in cognitively healthy people or with mild cognitive impairment compared to those who do not suffer them.

AIM

An international working group pertaining to the Alzheimer Association has proposed the concept of 'mild behavioral impairment' (MBI) to identify patients with mild neuropsychiatric symptoms and normal cognition or mild cognitive impairment and to study the further risk of developing dementia from any cause. A new scale, the Mild Behavioral Impairment-Checklist (MBI-C), has been developed for the assessment of MBI in clinical and research settings.

DEVELOPMENT

Data on the greater risk of dementia in the presence of neuropsychiatric symptoms are shown to justify the development of the new concept of MBI, improving the previous attempts of categorization of these states. Diagnostic criteria of MBI and the process of creation of the MBI-C scale are described. The Spanish version is presented in this article. Finally, the next steps in the investigation of the concept and measurement of MBI and its future prospects are suggested.

CONCLUSIONS

The new MBI criteria and their measurement using the MBI-C scale are promising for a better and earlier identification of patients at risk of developing dementia and as an aid to investigate the underlying neurodegenerative processes.

[Psychological and behavioural symptoms of dementia: prevention, diagnosis and treatment]

INTRODUCTION

The psychological and behavioural symptoms of dementia (BPSD) [corrected] give rise to personal suffering, are the cause of added deterioration and worsen the economic and social cost of dementias.

AIM

To offer a systematic approach to the prevention, diagnosis and treatment of BPSD. [corrected].

DEVELOPMENT

The study adopts a global perspective that takes into account biological, psychological and social factors in an attempt to avoid both excessive medicalisation and a purely psychology-based attitude. Satisfying basic needs, treating medical and psychiatric comorbidity, the adaptation of the setting, and the specific pharmacological treatment of dementia, as well as offering patients and their caregivers the counselling and support they need, all contribute to prevent the onset of BPSD. [corrected]. The diagnosis of BPSD [corrected] is based on the patient's medical history and on observation. It is useful to identify a primary or destabilising BPSD [corrected] on which to deploy hypotheses and specific treatments based on modifying the environment, drugs, non-pharmacological therapies and continuous assessment. Any action taken must be integrated within a person-focused care plan aimed at accomplishing the patients' and their caregivers' welfare and quality of life.

CONCLUSIONS

BPSD [corrected] are the result of biological, psychological and social factors. In the present scenario, in which there are no curative treatments in most cases of dementia, a systematic and multidisciplinary approach aimed at preventing and treating BPSD [corrected] is a highly cost-effective therapeutic opportunity in both personal and social terms.