(See also Drug Use and Abuse Overview of Substance-Related Disorders Drugs are an integral part of everyday life for many people, whether the drugs are used for legitimate medical purposes or recreationally (see table Drugs with Medical and Recreational Uses)... read more .)
Korsakoff psychosis occurs in 80% of people with untreated Wernicke encephalopathy Wernicke Encephalopathy Wernicke encephalopathy is a brain disorder that causes confusion, eye problems, and loss of balance and results from thiamin deficiency. Wernicke encephalopathy is caused by a severe deficiency... read more , which is a brain disorder caused by a type of vitamin deficiency that can occur in people who drink large amounts of alcohol Alcohol Alcohol (ethanol) is a depressant. Consuming large amounts rapidly or regularly can cause health problems, including organ damage, coma, and death. Genetics and personal characteristics may... read more for a long time. Korsakoff psychosis is sometimes triggered by a severe bout of delirium tremens Withdrawal symptoms Alcohol (ethanol) is a depressant. Consuming large amounts rapidly or regularly can cause health problems, including organ damage, coma, and death. Genetics and personal characteristics may... read more , which is a form of alcohol withdrawal, whether a typical attack of Wernicke encephalopathy occurs prior or not. Other causes include head injuries, stroke Overview of Stroke A stroke occurs when an artery to the brain becomes blocked or ruptures, resulting in death of an area of brain tissue due to loss of its blood supply (cerebral infarction) and symptoms that... read more , bleeding within the brain, and certain brain tumors (rarely).
Symptoms of Korsakoff Psychosis
People with Korsakoff psychosis lose their memory for recent events. Memory of remote events is less affected. Memory can be so poor that people often make up stories, sometimes very convincingly, to try to cover up the inability to remember (called confabulation). They lose all sense of time. People become confused and apathetic and may not respond to events, even frightening ones. People also have all the symptoms of Wernicke encephalopathy, including profound ataxia (wide-based stumbling gait) and difficulty controlling eye movements.
Diagnosis of Korsakoff Psychosis
Doctors base a Korsakoff psychosis diagnosis on symptoms, particularly confabulation, in people with conditions that can cause Korsakoff psychosis, such as severe chronic alcohol use disorder Alcohol Alcohol (ethanol) is a depressant. Consuming large amounts rapidly or regularly can cause health problems, including organ damage, coma, and death. Genetics and personal characteristics may... read more . Doctors need to rule out other causes of the symptoms, such as infection.
