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Am J Alzheimers Dis Other Demen ; 32(2): 101-107, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-28191798

RESUMEN

AIM: To compare the diagnostic validity of NIA-AA criteria, for AD CSF biomarkers, with our own new criteria. MATERIALS AND METHODS: Between 2008 and 2011, 170 patients with Mild Cognitive Impairment (MCI) were included. CSF levels of Aß1-42, T-tau, P-tau181, and ratios of T-tau/Aß1-42 and P-tau181/Aß1-42 were analyzed. In our criteria, we considered 3 or more abnormal variables indicative of a high likelihood of MCI due to AD. RESULTS: After a clinical follow-up of 4.5 ± 1.2 years, 44 patients remained stable, 95 developed AD, 15 other forms of dementia, 7 died and 9 received other diagnoses. Using the NIA-AA criteria and our own criteria, the diagnostic validity of the CSF biomarkers was 58% versus 85%, specificity 84% versus 72%, PPV 82% versus 79% and NPV 61% versus 79%. CONCLUSION: The inclusion of the ratios in diagnostic criteria increases sensitivity and NPV for the diagnosis of MCI due to AD.


Asunto(s)
Enfermedad de Alzheimer/líquido cefalorraquídeo , Péptidos beta-Amiloides/líquido cefalorraquídeo , Biomarcadores/líquido cefalorraquídeo , Disfunción Cognitiva/líquido cefalorraquídeo , Fragmentos de Péptidos/líquido cefalorraquídeo , Proteínas tau/líquido cefalorraquídeo , Anciano , Anciano de 80 o más Años , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , National Institute on Aging (U.S.)/normas , Guías de Práctica Clínica como Asunto/normas , Reproducibilidad de los Resultados , Sensibilidad y Especificidad , Estados Unidos
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