catatonia


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catatonia

(kăt'ətō`nēə), mental state generally characterized by statuesque posturing, muscular immobility, mutism, and apparent stupor. The muscles are held in a pliant state called waxy flexibility, and the catatonic person obediently permits himself to be rearranged into awkward positions that he may subsequently hold for hours. Another form of catatonia involves continuous incoherent shouting, psychomotor agitation, and a violent destructiveness which can lead to collapse and death if untreated. Loss of memory or intellect is not necessarily implied: catatonic patients often display excellent memory of their surroundings during the catatonic state. In recent years, drug therapy has been helpful in the avoidance of catatonic disturbances, and the appearance of catatonia is now quite rare. Described by Karl Kahlbaum (1874) as catatonia, the term was subsumed under Eugen BleulerBleuler, Eugen
, 1857–1939, Swiss psychiatrist. He taught (1898–1927) at the Univ. of Zürich, serving concurrently as director of Zürich's Burghölzi Asylum.
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's concept of schizophreniaschizophrenia
, group of severe mental disorders characterized by reality distortions resulting in unusual thought patterns and behaviors. Because there is often little or no logical relationship between the thoughts and feelings of a person with schizophrenia, the disorder has
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 in 1911. It has recently been classified as catatonic schizophrenia by the American Psychiatric Association.

Catatonia

 

or catatonic syndrome, a mental disorder dominated by impairment of motor activity.

Catatonia is a syndrome in schizophrenia and in psychoses resulting from poisoning, infection, or organic brain lesions. There are two alternating phases: stupor and excitement. In catatonic stupor, the tone of the skeletal muscles increases to the point where the patient remains frozen in any position, however uncomfortable, in which he is placed (catalepsy). The rigidity may reach the extremes of muscular tension: stupor with the extremities drawn close to the abdomen and the head bent, that is, the fetal position. The facial expression is frozen and the patient remains completely mute. External stimuli (for example, pain) or even extraordinary circumstances (fire, earthquake) do not prompt the patient to protect himself. Any attempt to change the position of a person in a deep stupor will induce muscular resistance.

Catatonic excitement may be bizarre and pathetic (the patients behave foolishly, ranting, singing, and striking affected poses) or impulsive, frantic, and aggressive. The mind of catatonics may stay clear or become clouded. Catatonia is relieved through the treatment of the causative disease.

catatonia

[‚kad·ə′tōn·ē·ə]
(psychology)
A type of schizophrenic reaction in which the individual remains speechless and motionless, assumes fixed postures, and lacks the will and resists attempts to activate speech and movement. Also known as catatonic schizophrenia.

catatonia

a state of muscular rigidity and stupor, sometimes found in schizophrenia
References in periodicals archive ?
Both catatonia and delirium result in significant morbidity and mortality.
Catatonia may be associated with neurodevelopmental disorders, psychotic illnesses, bipolar disorders, depressive disorders and medical illnesses.
She was considered to have catatonia according to these findings and was administered 0.1 mg/kg intravenous midazolam; her complaints decreased in the next 15 min.
She exhibited severe catatonia as well as many other psychotic symptoms, such as hallucination, delusion, and negative symptoms.
La catatonia es un sindrome inespecifico asociado a condiciones como la esquizofrenia, los trastornos afectivos, las encefalitis virales o autoinmunitarias, la epilepsia, los accidentes cerebrovasculares y los medicamentos neurolepticos, entre otros (3).
During the hospital stay, the patient exhibited worsening catatonia, mutism, anorexia, leukocytosis, and autonomic instability.
Cyclooxygenase inhibitors appear to protect against the development of catatonia induced by perphenazine on laboratory mice (9).
Por otro lado, en la catatonia se ha encontrado alteracion de la neurotransmision gabaergica (7).
Thus this case history illustrates the importance of considering organic disease in patients presenting with catatonia.
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