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A clinical review of depression in elderly people
BMC Geriatrics volume 10, Article number: L28 (2010)
Almost 20% of people over 65 show depressive symptoms while approximately 36% of demented over 75 -ear-olds are suffering from moderate-mild depression and about 40% of people over 85 are affected by a depressive condition  Having a negative self-perception and fearing social stigma because of that, stops older people asking for any psychiatric help. Moreover, their somatic complaints are attracting much more interest due to several illnesses being in comorbity with depression. So, almost half of geriatric depression remains undiagnosed, although they are a condition with a high risk of suicide. People over 65 committed 19% of all suicides in USA: 93% of them had a depressive disorder in comorbility with a painful medical disease.
Elderly people may suffer from all types of depressive disorders: however, their clinical pictures are different from adults,  showing predominant anxiety, insomnia, cognitive impairment, anhedonia, and agitation and less evident symptoms in the affective- mood domain.
Enhanced personality traits, modified behavioural patterns and interpersonal capacities are effects of the aged brain, when subjects are confronted with personal adjustments to life changes.
Multifactorial risk for depression involves the bio-psycho-social context: family history of depression, use of several drugs ( BDZ, NSAF) or abuse of common substances (alcohol), somatic diseases with disability and/or chronic pain, permanent damage to body image, daily loneliness and social isolation, recent grief’s, reduce perception of self wellness, fear of death, as well as availability of social support and economic resources, capacity of living in the community or need for assisted residency .
Depressive Disorders in aged population, according to their predominant clinical features, may pertain to the following groups,:
Biological: early onset, Bipolar spectrum, Melancolia, Psychotic or Atypical Depression
Psycho-reactive: late onset, relevant loss events or persistent stressful conditions such as isolation or disability or a severe medical condition
Mixed, organic + psychological: post-stroke depression, CNS altering neurotransmission drugs or metabolic adverse effects of poly- medication; initial Dementia or Parkinson Disease;
Relapse of an earlier depression is possible in later life but usually depression occurring for the first time may depend on another medical illness. Somatic complaints without any apparent medical etiology can be found. Clinical diagnosis of depression versus dementia can be really difficult, although some key features may help to detect depressive disorders  Cognitive assessment, corroborated by neuroimaging investigation, is required, in order to establish appropriate treatment.
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Amati, A. A clinical review of depression in elderly people. BMC Geriatr 10, L28 (2010) doi:10.1186/1471-2318-10-S1-L28
- Depressive Disorder
- Somatic Complaint
- Bipolar Spectrum
- Atypical Depression
- Metabolic Adverse Effect