[Depression and aging].

Depression is one of the most common health disorders in elderly people. It is still often considered as a natural consequence of aging, arising in reaction to a medical disease, cognitive or functional decline, or a loss of social fabric. Many studies have highlighted the low rates of diagnosis and treatment of depression, especially in the primary care setting. Major depression in old age is characterized by the same core symptoms as in other periods of life. However, aging may accentuate some symptoms and alleviate others. Somatic concern, marked anxiety, poor subjective memory, psychotic ideation, and recurrent thoughts of death can mask sadness and anhedonia. Organic factors and adverse life events are often intricately linked with the pathogenesis of depressive states in the elderly. The role of cerebrovascular lesions has also been established, particularly in late-onset depressive disorders. The management of depressive disorders in older people, as in younger adults, involves pharmacological and psychological treatments. Electroconvulsive therapy can be beneficial in some cases. Transcranial magnetic stimulation is being evaluated in this setting.