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  • Title: [Clinical aspects of tardive dyskinesias induced by neuroleptics].
    Author: Villeneuve A, Lajeunesse C.
    Journal: Encephale; 1988 Sep; 14 Spec No():209-14. PubMed ID: 2905648.
    Abstract:
    Initially, the reality of the existence of tardive dyskinesia raised some controversy, but rapidly this syndrome was recognized as a complication arising from usually long-term administration of neuroleptics. These extrapyramidal abnormal movements represent an important problem due to their prevalence, their potential irreversibility, their complex and still disputed physiopathologic mechanism, the absence of specific and generally effective treatment, and more recently the medico-legal problems entailed. At first, it was believed that these dyskinetic movements, of various intensity, were localized only at the oro-facial area (face, tongue, maxillary), or consisted of limited or generalized choreo-athetosic movements, or were a mixture of both types of movements. However, digestive and respiratory tardive dyskinesia also occur. Tardive dyskinesia can develop insidiously during neuroleptic treatment, or appear when this medication is decreased or ceased. It can coexist with parkinsonian signs. Age (over 50) and gender (female) appear to be risk factors. Other types of tardive syndromes associated with neuroleptic administration have been reported, such as tardive akathisia, tardive dystonia and a tardive Tourette-like syndrome. Involuntary movements resembling tardive dyskinesia can be observed in elderly individuals who never received neuroleptic medication. With respect to the rabbit syndrome, a rapid tremor of the perioral area, with a rhythmicity similar to the parkinsonian tremor, it is clearly different from tardive dyskinesia. It is essential to detect as precociously as possible tardive dyskinesia. The diagnosis is sometimes difficult and even if the clinical features seem pathognomonic of tardive dyskinesia, it is nevertheless important to establish a differential diagnosis.(ABSTRACT TRUNCATED AT 250 WORDS)
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