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Organic brain syndrome Health Article

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Definition

Organic brain syndrome (OBS) is a general term that refers to diseases (usually not psychiatric disorders) that cause decreased mental function.

Alternative Names

OBS; Organic mental disorder (OMS); Chronic organic brain syndrome

Causes, incidence, and risk factors

OBS is common in the elderly. It is not a part of the normal aging process, however.

OBS is not a separate disease, but is a general term used to describe physical conditions that can cause mental changes.

Disorders associated with OBS include:

Other conditions that may be related to organic brain syndrome include:

Symptoms

Symptoms can differ based on the disease. In general, organic brain syndromes cause:

  • Agitation
  • Confusion
  • Long-term loss of brain function (dementia)
  • Severe, short-term loss of brain function (delirium)

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Reviewer Info: Luc Jasmin, MD, PhD, Departments of Anatomy & Neurological Surgery, University of California, San Francisco, CA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.; ADAM Health Illustrated Encyclopedia, 02/13/2008
 
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