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1.
Dement. neuropsychol ; 11(2): 129-136, Apr.-June 2017. tab, graf
Article in English | LILACS | ID: biblio-891004

ABSTRACT

ABSTRACT. The Neuropsychiatric Inventory Questionnaire (NPI-Q) is an informant-based instrument that measures the presence and severity of 12 Neuropsychiatric Symptoms (NPS) in patients with dementia, as well as informant distress. Objective: To measure the psychometric properties of the NPI-Q and the prevalence of NPS in patients with Alzheimer's disease (AD) in Chile. Methods: 53 patients with AD were assessed. Subjects were divided into two different groups: mild AD (n=26) and moderate AD (n=27). Convergent validity was estimated by correlating the outcomes of the NPI-Q with Neuropsychiatric Inventory (NPI) scores and with a global cognitive efficiency test (Addenbrooke's Cognitive Examination - Revised - ACE-R). Reliability of the NPI-Q was analysed by calculating its internal consistency. Prevalence of NPS was estimated with both the NPI and NPI-Q. Results: Positive and significant correlations were observed between the NPI-Q, the NPI, and the ACE-R (r=0.730; p<0.01 and 0.315; p<0.05 respectively). The instrument displayed an adequate level of reliability (Cronbach's alpha=0.783). The most prevalent NPS were apathy/indifference (62.3%) and dysphoria/depression (58.5%). Conclusion: The NPI-Q exhibited acceptable validity and reliability indicators for patients with AD in Chile, indicating that it is a suitable instrument for the routine assessment of NPS in clinical practice.


RESUMO. O Questionário de Inventário Neuropsiquiátrico (NPI-Q) é um instrumento baseado em informantes que mede a presença e a gravidade de 12 Sintomas Neuropsiquiátricos (NPS) em pacientes com demência, bem como o sofrimento do informante. Objetivo: Avaliar as propriedades psicométricas do NPI-Q e a prevalência de NPS em pacientes com doença de Alzheimer (DA). Métodos: Foram avaliados 53 pacientes com DA. Eles foram divididos em dois grupos diferentes: AD leve (n=26) e AD moderado (n=27). A validade convergente foi estimada correlacionando os resultados do NPI-Q com os escores do Inventário Neuropsiquiátrico (NPI) e um teste de eficiência cognitiva global (Addenbrooke's Cognitive Examination - Revised - ACE-R). A confiabilidade do NPI-Q foi analisada pelo cálculo da sua consistência interna. A prevalência de NPS foi estimada com NPI e NPI-Q. Resultados: Foram observadas correlações positivas e significativas entre NPI-Q, NPI e ACE-R (r=0,730; p<0,01 e 0>315; p<0>05). O instrumento apresentou um nível adequado de confiabilidade (alfa de Cronbach=0J83). Os NPS mais prevalentes foram apatia/indiferença (62,3%) e disforia/depressão (58,5%). Conclusão: O NPI-Q apresenta indicadores de validade e confiabilidade aceitáveis em pacientes com DA, o que indica que é um instrumento adequado para a avaliação rotineira de NPS na prática clínica.


Subject(s)
Humans , Prevalence , Neurobehavioral Manifestations , Dementia , Alzheimer Disease , Mental Status and Dementia Tests
2.
Dement. neuropsychol ; 5(4): 332-336, dez. 2011. tab
Article in English | LILACS | ID: lil-612064

ABSTRACT

Cholinesterase inhibitors (ChE-Is) are among the main drugs approved for the treatment of Alzheimer's disease (AD). Rivastigmine in the form of a transdermal patch is an alternative delivery method, and can give greater treatment compliance. Objectives: To conduct a preliminary assessment of the neurocognitive and biological effects of oral and transdermal Rivastigmine in patients with AD and to identify a potential biological marker and demonstrate a possible relationship between esterase levels and behavioral scores of AD patients. Methods: Forty patients with AD were treated with cholinesterase inhibitors (ChE-Is), evaluated using the MMSE and NPI, and simultaneously sampled to determine their serum levels of AChE and BuChE for 180 days. Results: The differences obtained between oral and transdermal forms, as assessed by the MMSE and NPI scores of the AD patients, were not significant at the three time points examined (0, 90, and 180 days). However, serum BuChE levels of the transdermal group differed significantly (p<0.0004) compared with those of the oral group at 90 days. Conclusion: Use of a transdermal ChE-I, rivastigmine tartrate significantly reduced BuChE levels in the AD patients studied.


Os inibidores das colinesterases estão entre as principais drogas aprovadas para tratamento da doença de Alzheimer (DA). Rivastigmina na forma de adesivo transdérmico é um método alternativo de liberação e pode fornecer uma maior aderância ao tratamento. Objetivos: Conduzir uma abordagem preliminar dos efeitos neurocognitivos e biológicos da rivastigmina oral e transdérmica em pacientes com DA e identificar um potencial marcador biológico e demonstrar uma possível relação entre níveis de esterases e escores de comportamento de pacientes com DA. Métodos: Quarenta pacientes com DA com inibidores de colinesterases foram avaliados usando o MEEM e o INP e colhidas amostras para determinar seus níveis séricos de AChE e BuChE por 180 dias. Resultados: As diferenças obtidas entre as formas oral e transdérmica, avaliadas pelo MEEM e INP não diferiram em três ocasiões (0, 90 e 180 dias). Todavia, os níveis de BuChE no grupo transdérmico diferiu significativamente (p<0.0004) comparados ao grupo de administração oral em 90 dias. Conclusão: O uso do tartarato de rivastigmina, forma transdérmica reduziu significativamente os níveis de BuChE nos pacientes estudados com DA.


Subject(s)
Humans , Acetylcholine , Esterases , Alzheimer Disease , Rivastigmine , Mental Status and Dementia Tests
3.
Rev. chil. neuropsicol. (En línea) ; 5(2): 153-159, jul. 2010. tab, graf
Article in Spanish | LILACS | ID: lil-579531

ABSTRACT

Introducción: el deterioro cognitivo leve (DCL) se caracteriza por la alteración de uno o varios procesos cognitivos sin afectación significativa en las actividades de la vida diaria del paciente y que puede presentarse acompañado de síntomas neuropsiquiátricos, lo que incrementa el riesgo a evolucionar a demencia. Objetivo: identificar la frecuencia y severidad de las alteraciones comportamentales en una población con deterioro cognitivo leve de tipo amnésico. (DCL-A)Procedimiento: estudio no experimental, transversal de alcance descriptivo, que contó con 70 personas, con diagnostico de DCL-A. Seleccionada la muestra los cuidadores respondieron el inventario neuropsiquiátrico. Resultados: el 65.7 por ciento de los participantes presentaron síntomas comportamentales, donde la irritabilidad fue la mas frecuente (32.9 por ciento), seguido por depresión (30 por ciento) y agitación (25.7 por ciento). La apatía fue el síntoma que se presenta con mayor severidad sin ser el más frecuente. Discusión: dentro del cuadro clínico propio del DCL-A se reportan síntomas neuropsiquiátricos que acompañan el déficit cognitivo. En la población estudiada el 65.7 por ciento presentaba dichos síntomas, dato que se aproxima a lo encontrado en la literatura; sin embargo el síntoma más frecuente fue la irritabilidad, no la depresión como se ha reportado en otros estudios; los síntomas menos frecuentes fueron conductas eufóricas y conductas motoras aberrantes.


Introduction: Mild Cognitive Impairment (MCI) is characterized by the alteration of one or more cognitive processes without significant impairment in the activities of patient’s daily life and may be accompanied by neuropsychiatric symptoms, which increase the risk to develop dementia. Objective: To identify the frequency and severity of behavioral alterations in a population with mild cognitive impairment amnesiac type (MCI-A) Procedure: non experimental study, with a cross-sectional descriptive scope, attended by 70 people with diagnosis of MCI-A.Selected sample of caregivers responded neuropsychiatric inventory. Results: 65.7 percent of participants had behavioral symptoms, where irritability was the most frequent (32.9 percent), followed by depression (30 percent) and agitation (25.7 percent). Apathy was the symptom presented with most severity but not the most frequent. Discussion: Neuropsychiatric symptoms that accompany cognitive deficits are reported in clinical features of MCI-A. In the population studied, 65.7 percent had such symptoms, data that approximates those found in literature. Nonetheless, the most common symptom was irritability and not depression, as has been reported in other studies; euphoric and aberrant motor behaviors were theless frequent symptoms.


Subject(s)
Humans , Male , Female , Middle Aged , Aged, 80 and over , Aging , Amnesia/epidemiology , Neuropsychological Tests , Cognition Disorders/epidemiology , Alzheimer Disease , Amnesia/pathology , Caregivers , Cross-Sectional Studies , Colombia/epidemiology , Surveys and Questionnaires , Severity of Illness Index , Mental Disorders/epidemiology , Cognition Disorders/pathology
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