What are causes of delirium, dementia, and amnesia in the elderly?

Updated: Sep 19, 2018
  • Author: Richard D Shin, MD; Chief Editor: Gil Z Shlamovitz, MD, FACEP  more...
  • Print
Answer

In the elderly, the combined effects of visual and auditory impairments, dementia or other chronic brain dysfunction, medication side effects (particularly polypharmacy), and/or unfamiliar environment or nighttime darkness can lead to acute confusion or psychosis, which is known as sundowning. As the name implies, this condition usually occurs in the evening hours. Vitamin B-12 deficiency is a potential cause of sundowning as well as progressive but reversible dementia.


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!