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Delirium tremens (colloquially, the DTs, \"the horrors\", \"the shakes\" or \"rum fits;\" literally, \"shaking delirium\" or \"trembling madness\" in Latin) is an acute episode of delirium that is usually caused by withdrawal or abstinence, from alcohol following habitual excessive drinking, or benzodiazepines or barbiturates (and other major tranquilizers). Delirium tremens can also appear after a rapid reduction in the amount of alcohol being consumed by heavy drinkers, or a rapid reduction of intake of benzodiazepines or barbiturates. Caused by alcohol, it only occurs in individuals with a history of constant, long-term alcohol consumption. Occurrence due to benzodiazepine or barbiturate withdrawal does not require as long a period of consistent intake of such drugs. Prior use of both tranquilizers and alcohol can compound the symptoms, and while extremely rare, is the most dangerous especially if untreated. Barbiturates are generally accepted as being extremely dangerous, both due to overdose potential and addiction potential including the extreme withdrawal syndrome that usually is marked by delirium tremens upon discontinuation. Due to this, barbiturates are rarely used ambulatory anymore, being replaced by the generally accepted less dangerous benzodiazepines, which however still cause a similar withdrawal syndrome.
Five percent of acute ethanol withdrawal cases progress to delirium tremens. Unlike the withdrawal syndrome associated with opiate addiction (generally), delirium tremens (and alcohol withdrawal in general) can be fatal. Mortality can be up to 35% if untreated; if treated early, death rates range from 5-15%.
Symptoms
The main symptoms are confusion, disorientation and agitation. Other common symptoms include intense hallucinations such as visions of insects, snakes or rats (or stereotypically, pink elephants). These may be related to the environment, e.g., drawings on wallpaper that the patient would perceive as giant spiders attacking him or her. Unlike hallucinations associated with schizophrenia, delirium tremens hallucinations are primarily visual, but associated with tactile hallucinations such as sensations of something crawling on the subject - a phenomenon known as formication. Delirium tremens can sometimes be associated with severe, uncontrollable tremors of the extremities and secondary symptoms such as anxiety, panic attacks and paranoia.
Delirium tremens (DT) should be distinguished from alcoholic hallucinosis, the latter occurring in approximately 20% of hospitalized alcoholics and not carrying a significant mortality. In contrast, DT occurs in 5-10% of alcohol-dependent people and carries up to 5% mortality with treatment and up to 35% mortality without treatment. DT is characterized by the presence of altered sensorium; that is, a complete hallucination without any recognition of the real world. DT has extreme autonomic hyperactivity (high pulse, blood pressure, and rate of breathing), and 35-60% of patients have a fever. Some individuals experience seizures as well.
Read more at Wikipedia.org
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