Acute Confusion

Acute confusion (synonyms: confusion; ICD-10-GM F05.-: Delirium not due to alcohol or other psychotropic substances) is a disorder of consciousness.

In the Anglo-Saxon language area, “acute confusion” and “delirium” are treated synonymously. In the German-speaking world, on the other hand, the term “delir” is often used in a narrowed meaning and refers to an acute state of confusion as a result of withdrawal symptoms (alcohol, drugs, etc.).

Typical of acute confusion are simultaneously existing disturbances of attention, perception, thinking, memory, psychomotor activity as well as emotionality and sleep-wake rhythm. Usually, the condition is temporary and thus reversible (reversible).

Acute confusion can vary in severity (from mild to very severe). It can be a symptom of many diseases (see under “Differential diagnoses”).

Frequency peak: Acute confusion occurs predominantly in older age.

Course and prognosis: The course and prognosis depend on the cause of the disease. Neurologic workup is required.