Clinical judgement of general practitioners: an effective tool in the diagnosis of dementia?

The diagnosis of dementia poses several challenges, as a consequence of which the condition has been widely reported to be underdiagnosed in the general population. Currently, there is no single diagnostic test for dementia and the clinical judgement of primary care physicians is therefore a key determinant in identifying which patients are referred to specialist services for further assessment. This month's Cochrane Corner review found that the clinical judgement of general practitioners is more specific (58-99%) than sensitive (34-91%) in diagnosing dementia, although the data were limited by small sample size and significant heterogeneity. This commentary provides a critical appraisal of this systematic review and attempts to extrapolate conclusions relevant to current clinical practice, including potential areas of further research, to facilitate appropriate and timely referral of patients with suspected dementia to specialist services.