To the Editor: One of the main problems that physicians encounter when a patient with delirium is admitted to a hospital is to assess the degree of cognitive impairment present before the acute clinical event that caused hospitalization. This is important because dementia is both a risk factor for delirium and a strong prognostic modulator of the patient's global health status and survival.1,2
Bellelli G, Trabucchi M. Diagnosing Delirium. JAMA. 2010;304(19):2124–2127. doi:10.1001/jama.2010.1615
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