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  • Title: [Long-term clinical experience with clozapine].
    Author: Gelly F, Chambon O, Marie-Cardine M.
    Journal: Encephale; 1997; 23(5):385-96. PubMed ID: 9453932.
    Abstract:
    This study reports a clinical experience among twenty schizophrenic patients treated by clozapine during two years and eight months within a range extending from three months to seven years. These twenty patients had previously shown long-term resistance to usual neuroleptics but three out of them met the diagnosis of mental retardation or childhood disintegrative disorder (F.84.3-ICD 10). These patients were put under clozapine for their violent behavior. The methodology was retrospective, descriptive with intra-individual comparison, each patient being his own reference before and after treatment. Diagnosis met CD 10 criteria and were assessed without using standard examination. This study aimed at assessing once more clozapine efficacy and tolerance upon a long time follow up. Single therapy has been the rule and dosages have been progressively increased reaching a mean daily dosage of 350 mg per day. The efficacy, assessed by the way of BPRS, GAF (DSM III-R) and simplified form of CGIS, has been verified in approximately 30% of the patients, mainly concerning positive symptoms. Clozapine was also able to alleviate severe behavior troubles brought about by delusional states, without this latter being markedly softened when it was a long term one. Clozapine tolerance has shown it to be satisfactory, however we noticed the occurrence of a leucopenia with neutropenia after seventeen weeks of treatment, followed, some days later, by a Quincke oedema, which forced to interrupt the treatment. White blood cells came back in a normal range fifteen days later. The other side effects (transitory hypersialorrhea, tachycardia, without clinical and ECG perturbations) have been usually well tolerated and have never caused treatment interruption. No extrapyramidal side effect have been noticed among our twenty patients. The end of this paper consists in the presentation of four clinical cases: one about the efficacy of clozapine upon violent antisocial behaviour in a schizotypital disorder; one delusional chronic schizophrenic patient whose violence has been controlled despite of the delusion; one paranoid schizophrenic patient who has been able to maintain a satisfactory professional and family adaptation; and finally a childhood disintegrative disorder (F.84.3-ICD 10) in whom occurred the only leucopenia side effect of our study. These four clinical cases have seemed particularly meaningful regarding our clinical experience of clozapine which has been lasting for almost seven years now.
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