<unk>  is "an acute, brief nonorganic psychosis that typically presents with a sudden onset of fully formed, thematically variable delusions and hallucinations against a background of some degree of clouding of consciousness, unstable and fluctuating affect, and spontaneous recovery with some probability of relapse." The following criteria have been suggested for a diagnosis of BD: a) abrupt onset, b) polymorphic delusions, emotional changes, mood swings, depersonalization, derealization and/or hallucinations, c) complete remission within weeks or a few months, d) exclusion of organic causation, alcohol or drug use, e) no psychiatric antecedents with the exception of a previous episode of<unk> . American academic investigators proposed the following definition in 2011: "The French concept of<unk>  refers to conditions with a sudden onset marked by prominent delusions with hallucinations, confusion, anxiety and affective symptoms. Symptoms vary rapidly, perhaps even by the hour, and there is a rapid return to the premorbid state of health." A frequently quoted authority on BD, P. Pichot (Hôpital Sainte Anne, Paris) provides this description of BD: # sudden onset: 'a bolt from the blue' # manifold delusions without recognizable structure and cohesiveness with/without hallucinations # clouding of consciousness associated with emotional instability # absence of physical signs. # rapid return to pre-morbid level of functioning. Pichot's criteria can be refined further with these typical clinical characteristics: * age: usually between 20 and 40 years of age * onset: acute without prior mental illness (with the exception of previous episodes of<unk>  * past history: no chronic mental disturbance after resolution of the BD episode. * typical symptoms: delusions and/or hallucinations of any type. Depersonalization/derealization and/or confusion * depression and/or elation * symptoms quite variable from day to day and even hour to hour. * not due to alcohol, drug use, or organic mental disorder.
Bouffée délirante
Ugeskrift for Læger
Self-surgery
Revue Médicale de Bruxelles
Mary de Lourdes Gogan
Souffle 
Revista Cubana de Cirugía
Sanatorium