Complications
By Mayo Clinic staffDelirium may last only a few hours or as long as several weeks or months. If factors contributing to delirium are addressed, the recovery time is often shorter.
The degree of recovery depends to some extent on the health and mental status before the onset of delirium. People with dementia, for example, may experience a significant overall decline in memory and thinking skills. People in better health are more likely to recover fully.
People with other serious, chronic or terminal illnesses may not regain the levels of thinking skills or functioning that they had before the onset of delirium. Delirium in seriously ill people is also more likely to lead to:
- General decline in health
- Poor recovery from surgery
- Need for institutional care
- Increased risk of death
- Delirium. In: Diagnostic and Statistical Manual of Mental Disorders DSM-IV-TR. 4th ed. Arlington, Va.: American Psychiatric Association; 2000. http://www.psychiatryonline.com. Accessed May 22, 2012.
- Dementia. In: Diagnostic and Statistical Manual of Mental Disorders DSM-IV-TR. 4th ed. Arlington, Va.: American Psychiatric Association; 2000. http://www.psychiatryonline.com. Accessed May 22, 2012.
- Ghandour A, et al. Detecting and treating delirium - key interventions you may be missing. The Journal of Family Practice. 2011;60:726.
- Martinez FT, et al. Preventing delirium in an acute hospital using a non-pharmacological intervention. Age and Aging. 2012;0:1.
- Francis J, et al. Diagnosis of delirium and confusional states. http://www.uptodate.com/index.html. Accessed May 24, 2012.
- Tips and resources for caregivers: Caring for yourself when you are caring for others. Ask Medicare: Information to help you care for others. http://www.medicare.gov/caregivers/caregiver-topics-support.html. Accessed May 24, 2012.
- Takahashi PY (expert opinion). Mayo Clinic, Rochester, Minn. June 28, 2012 & August 6, 2012.
- Philbrick KL (expert opinion). Mayo Clinic, Rochester, Minn. July 30, 2012.
- Sampson S (expert opinion). Mayo Clinic, Rochester, Minn. July 27, 2012.


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