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Wernicke Encephalopathy

Were-nick Ens-eh-fall-o-path-e

 

Definition

Wernicke encephalopathy is a brain disorder. It can be associated with a variety of symptoms such as confusion, lack of muscle coordination, and eye movement difficulties.

The Brain

Copyright © Nucleus Medical Media, Inc.

 

Causes    TOP

Wernicke encephalopathy is caused by thiamine (vitamin B1) deficiency. The deficiency may be caused by poor nutrition, problems absorbing vitamins, or both.

Vitamin B deficiency is common in those with alcohol use disorder (AUD). Excessive intake of alcohol is associated with poor diets and damage to the intestines that make it difficult to absorb vitamins. However, not everyone with AUD develops Wernicke encephalopathy. A combination of genes and diet may play a role.

 

Risk Factors    TOP

Factors that may increase your chances of Wernicke encephalopathy:

  • AUD
  • Poor nutrition or fasting
  • A diet rich in carbohydrates
  • Cancer and chemotherapy treatments
  • Gastrointestinal disorders and surgical procedures
  • Severe vomiting
  • Systemic diseases, such as AIDS, renal diseases, infections, and thyroid disease
  • Dialysis
  • Eating disorders
  • Certain medications
 

Symptoms    TOP

Symptoms may include:

  • Mental status changes, including confusion, poor concentration, lack of emotion, and memory loss
  • Vision problems
  • Poor coordination
  • Difficulty walking and sitting
  • Nausea and vomiting
 

Diagnosis    TOP

You will be asked about your symptoms and medical history. A physical exam will be done.

A blood tests can measure the level of thiamine in your blood.

 

Treatment    TOP

Talk with your doctor about the best treatment plan for you. Options include:

  • Thiamine supplements—To treat the thiamine deficiency that is causing your Wernicke encephalopathy.
  • Dietary changes—You may be referred to a dietitian to help with meal planning, especially if your diet is high in carbohydrates.

If Wernicke encephalopathy is associated with AUD or an eating disorder, you may be referred to a rehabilitation facility.

 

Prevention    TOP

To help reduce your chances of Wernicke encephalopathy:

  • Ensure that you are getting enough thiamine in your diet.
    • Daily goals are 1.1 milligrams (mg) a day for women and 1.2 mg a day for men
    • Include foods rich in thiamine such as lentils, peas, fortified breakfast cereal, pecans, spinach, oranges, milk, and eggs
  • Limit your alcohol intake to a moderate level.
    • Moderate is 2 or fewer drinks per day for men and 1 or fewer drinks per day for women
    • If you have a drinking problem, talk to your doctor right away about treatment options.
RESOURCES:

National Institute of Neurological Disorders and Stroke
https://www.ninds.nih.gov

National Institute on Aging
https://www.nia.nih.gov

CANADIAN RESOURCES:

Alzheimer Society Canada
http://www.alzheimer.ca

Public Health Agency of Canada
https://www.canada.ca

REFERENCES:

Alcohol-related brain damage (including Korsakoff’s syndrome). Alzheimer’s Society website. Available at: https://www.alzheimers.org.uk/info/20007/types_of_dementia/14/alcohol-related_brain_damage_including_korsakoffs_syndrome. Accessed December 21, 2017.

Kaineg B, Hudgins M. Wernicke’s encephalopathy. N Engl J Med. 2005;352(19):e18.

Lukas RV, Piantino J, Ksiazek S, et al. MRI changes in a head and neck cancer patient with Wernicke’s Encephalopathy and visual loss. Neuro-Ophthalmology. 2011;35(5-6):272-275.

Wernicke encephalopathy. EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T115007/Wernicke-encephalopathy . Updated June 15, 2017. Accessed December 21, 2017.

Wernicke-Korsakoff syndrome. Patient website. Available at: https://patient.info/doctor/wernicke-korsakoff-syndrome. Updated September 19, 2014. Accessed December 21, 2017.

Wernicke-Korsakoff syndrome. Radiopaedia website. Available at: https://radiopaedia.org/articles/wernicke-korsakoff-syndrome. Accessed December 21, 2017

Wernicke-Korsakoff syndrome information page. National Institute of Neurological Disorders and Stroke website. Available at: https://www.ninds.nih.gov/Disorders/All-Disorders/Wernicke-Korsakoff-Syndrome-Information-Page. Accessed December 21, 2017.



Last reviewed November 2018 by EBSCO Medical Review Board Marcin Chwistek, MD
Last Updated: 11/16/2015

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