Detection of early Alzheimer's disease in MCI patients by the combination of MMSE and an episodic memory test

作者：Pozueta Ana; Rodriguez Rodriguez Eloy; Luis Vazquez Higuera Jose; Mateo Ignacio; Sanchez Juan Pascual; Gonzalez Perez Soraya; Berciano Jose; Combarros Onofre^*

来源：BMC Neurology, 2011, 11(1): 78.

DOI：10.1186/1471-2377-11-78

Background: Mild cognitive impairment (MCI) is a heterogeneous clinical entity that comprises the prodromal phase of Alzheimer's disease (Pr-AD). New biomarkers are useful in detecting Pr-AD, but they are not universally available. We aimed to investigate baseline clinical and neuropsychological variables that might predict progression from MCI to AD dementia.
Methods: All patients underwent a complete clinical and neuropsychological evaluation at baseline and every 6 months during a two-year follow-up period, with 54 out of 109 MCI patients progressing to dementia (50 of them progressed to AD dementia), and 55 remaining as stable MCI (S-MCI).
Results: A combination of MMSE and California Verbal Learning Test Long Delayed Total Recall (CVLT-LDTR) constituted the best predictive model: subjects scoring above 26/30 on MMSE and 4/16 on CVLT-LDTR had a negative predictive value of 93.93% at 2 years, whereas those subjects scoring below both of these cut-off scores had a positive predictive value of 80.95%.
Conclusions: Pr-AD might be distinguished from S-MCI at baseline using the combination of MMSE and CVLT-LDTR. These two neuropsychological predictors are relatively brief and may be readily completed in non-specialist clinical settings.

• 出版日期2011-6-24