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Alzheimers disease is the most common disorder causing cognitive decline in old age and exacts a substantial cost on society.Although the diagnosis of AD is often missed or delayed,it is primarily one of inclusion,not exclusion,and usually can be made using standardized clinical criteria. Most cases can be diagnosed and managed in primary care settings,yet some patients with atypical presentations,severe impairment,or complex comorbidity benefit from specialist referral.Alzheimer disease is progressive and irreversible,but pharmacologic therapies for cognitive impairment and nonpharmacologic and pharmacologic treatments for the behavioral problem associated with dementia can enhance quality of life. Psychotherapeutic intervention with family members is often indicated,as nearly half of all caregivers become depressed.Health care delivery to these patients is fragmented and inadequate,and changes in disease management models are adding stresses to the system.New approaches are needed to ensure patients'access the essential resources,and future research should aim to improve diagnostic and therapeutic effectiveness. |
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