Improving Diagnosis of Functional Cognitive Impairment in Younger Adults in Primary Care: Validation of Cognitive Screening Tools and the 4-Item Geriatric Depression Scale.

BACKGROUND: Cognitive decline is classically attributed to organic causes such as dementia; however, depression can play a role in cognitive decline. OBJECTIVE: To evaluate cognitive screening tools and the 4-item Geriatric Depression Scale (GDS-4) for use in primary care to distinguish cognitive decline secondary to depression. METHOD: Clinical data collected over 2.5 years for assessed patients in a secondary clinical service for younger adults. Cognitive screening tools (General Practitioner Assessment of Cognition, Addenbrooke's Cognitive Examination-III, Rowland Universal Dementia Assessment Scale, Salzburg Dementia Test Prediction) and GDS-4 were analyzed for their accuracy to differentiate patients with cognitive decline due to depression from those with subjective cognitive complaints. RESULTS: 180 young adults seen in a memory clinic setting (< 65 years) were included. These individuals either had a diagnosis of depression (n = 46) or no cognitive impairment on assessment (n = 134) despite having subjective cognitive complaints. All used cognitive tools had poor accuracy in differentiating cognitive decline secondary to depression from subjective cognitive complaints. The GDS-4 alone, however, was able to differentiate with high accuracy (AUC = 0.818) individuals who had cognitive problems secondary to depression. CONCLUSION: Cognitive screening tools used alone are ineffective in discriminating cognitive decline secondary to depression. Incorporating the GDS-4 into the screening process by primary practitioners could facilitate early identification and treatment of depression in younger people, avoiding unnecessary referrals memory services.

Delayed discharge from intellectual disability in-patient units.

Aims and method We undertook a cross-sectional service evaluation of the reasons and extent of delay in the discharge process in an intellectual disability hospital over a 12-month period. Delays at each stage of the discharge process are also quantified in this study. Results We found that discharge was delayed for 29% of patients during the study period. The majority (78.5%) was due to awaiting completion of assessment of future care needs and waiting for public funding. Clinical implications Commissioners (health and social), provider trusts, regulators and community providers should consider the reasons for delay in the discharge process and adopt a whole systems approach to discharge planning. This is highly relevant in light of recommendations by the Department of Health following the Winterbourne View scandal, which has raised concern about patients staying in intellectual disability in-patient units too long and for the wrong reasons.

Review of brief cognitive tests for patients with suspected dementia.

BACKGROUND: As the population ages, it is increasingly important to use effective short cognitive tests for suspected dementia. We aimed to review systematically brief cognitive tests for suspected dementia and report on their validation in different settings, to help clinicians choose rapid and appropriate tests. METHODS: Electronic search for face-to-face sensitive and specific cognitive tests for people with suspected dementia, taking ≤ 20 minutes, providing quantitative psychometric data. RESULTS: 22 tests fitted criteria. Mini-Mental State Examination (MMSE) and Hopkins Verbal Learning Test (HVLT) had good psychometric properties in primary care. In the secondary care settings, MMSE has considerable data but lacks sensitivity. 6-Item Cognitive Impairment Test (6CIT), Brief Alzheimer's Screen, HVLT, and 7 Minute Screen have good properties for detecting dementia but need further validation. Addenbrooke's Cognitive Examination (ACE) and Montreal Cognitive Assessment are effective to detect dementia with Parkinson's disease and Addenbrooke's Cognitive Examination-Revised (ACE-R) is useful for all dementias when shorter tests are inconclusive. Rowland Universal Dementia Assessment scale (RUDAS) is useful when literacy is low. Tests such as Test for Early Detection of Dementia, Test Your Memory, Cognitive Assessment Screening Test (CAST) and the recently developed ACE-III show promise but need validation in different settings, populations, and dementia subtypes. Validation of tests such as 6CIT, Abbreviated Mental Test is also needed for dementia screening in acute hospital settings. CONCLUSIONS: Practitioners should use tests as appropriate to the setting and individual patient. More validation of available tests is needed rather than development of new ones.