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Symptoms
By Mayo Clinic staffCreutzfeldt-Jakob disease is marked by rapid mental deterioration, usually within a few months. Initial signs and symptoms of CJD typically include:
- Personality changes
- Anxiety
- Depression
- Memory loss
- Impaired thinking
- Blurred vision
- Insomnia
- Difficulty speaking
- Difficulty swallowing
- Sudden, jerky movements
As the disease progresses, mental symptoms worsen. Most people eventually lapse into a coma. Heart failure, respiratory failure, pneumonia or other infections are generally the cause of death. The disease usually runs its course in about seven months, although a few people may live up to one or two years after diagnosis.
In people with the rarer vCJD, psychiatric symptoms may be more prominent in the beginning, with dementia — the loss of the ability to think, reason and remember — developing later in the course of the illness. In addition, this variant affects people at a younger age than classic CJD does, and appears to have a slightly longer duration — 12 to 14 months.
- Creutzfeldt-Jakob disease fact sheet. National Institute of Neurological Disorders and Stroke. http://www.ninds.nih.gov/disorders/cjd/detail_cjd.htm. Accessed July 2, 2012.
- vCJD (variant Creutzfeldt-Jakob disease). Centers for Disease Control and Prevention. http://www.cdc.gov/ncidod/dvrd/vcjd/factsheet_nvcjd.htm. Accessed July 2, 2012.
- Imran M, et al. An overview of human prion diseases. Virology Journal. 2011;8:559.
- Zerr I, et al. Updated clinical diagnostic criteria for sporadic Creutzfeldt-Jakob disease. Brain. 2009;132:2659.
- Rosenbloom MH, et al. The evaluation of rapidly progressive dementia. Neurologist. 2011;17:67.
- Greenberg DA, et al. Clinical Neurology. 7th ed. New York, N.Y.: The McGraw-Hill Companies; 2009. http://www.accessmedicine.com/content.aspx?aID=5143601. Accessed July 2, 2012.
- McPhee SJ, et al. Current Medical Diagnosis & Treatment 2012. 51st ed. New York, N.Y.: The McGraw-Hill Companies; 2012. http://www.accessmedicine.com/content.aspx?aID=17051. Accessed July 2, 2012.
- WHO infection control guidelines for transmissible spongiform encephalopathies. World Health Organization. http://www.who.int/csr/resources/publications/bse/WHO_CDS_CSR_APH_2000_3/en/. Accessed July 3, 2012.
- Vaccines and variant CJD (vCDJ) questions and answers. U.S. Food and Drug Administration. http://www.fda.gov/Drugs/ResourcesForYou/Consumers/QuestionsAnswers/ucm173909.htm?utm_campaign=Google2&utm_source=fdaSearch&utm_medium=website&utm_term=Insulin,%20vCJD&utm_content=10. Accessed July 3, 2012.
- Questions and answers on importing beef or pork insulin for personal use. U.S. Food and Drug Administration. www.fda.gov/BiologicsBloodVaccines/Vaccines/QuestionsaboutVaccines/ucm143522.htm - 12k - 2009-04-29. Accessed July 3, 2012.
- Current thinking on measures that could be implemented to minimize human exposure to materials that could potentially contain the bovine spongiform encephalopathy agent. http://www.fsis.usda.gov/oa/topics/bse_thinking.htm. Accessed July 3, 2012.
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