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      Relapse in patients with schizophrenia: a comparison between risperidone and haloperidol Translated title: Recaída em pacientes com esquizofrenia: uma comparação entre risperidona e haloperidol

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          Abstract

          OBJECTIVES: To compare rates of rehospitalization and time to relapse in risperidone vs. haloperidol-treated schizophrenic patients discharged from the hospital. METHODS: Randomized controlled trial comparing risperidone and haloperidol regarding relapse in patients with schizophrenia treated with flexible doses during one year. RESULTS: Twenty patients were assigned to risperidone and 13 to haloperidol. One patient from each group withdrew consent and one patient in the risperidone group was lost for follow-up. Six (30.0%) patients in the risperidone group and 3 (23.1%) in the haloperidol group relapsed (p=1.00). However, time to relapse was shorter in the later (logrank =4.2; p=.04). When rehospitalized, patients in the risperidone group stayed 34.5 days (median) at hospital as compared to the haloperidol group (median of 61 days) (p=.61). CONCLUSION: The proportion of schizophrenic patients who relapsed was similar in both groups; However, time to relapse was shorter in the haloperidol-treated patients.

          Translated abstract

          OBJETIVOS: Comparar taxas de re-hospitalização e o tempo para a recaída entre pacientes esquizofrênicos tratados com risperidona ou haloperidol após alta hospitalar. MÉTODOS: Ensaio controlado, randomizado, comparando risperidona e haloperidol em relação à recaída em pacientes com esquizofrenia tratados com doses flexíveis, com duração de um ano. RESULTADOS: Vinte pacientes foram alocados para a risperidona e 13 para o haloperidol. Um paciente em cada grupo retirou o consentimento e um tomando risperidona foi perdido para o seguimento. Seis (30,0%) do grupo da risperidona e três (23,1%) do grupo do haloperidol recaíram (p=1.00). Contudo, o tempo até a re-hospitalização foi mais curto com o haloperidol (logrank =4,2; p=0,04). Quando re-hospitalizados, os pacientes no grupo da risperidona permaneceram 34,5 dias no hospital (mediana) quando comparados com o grupo do haloperidol (mediana =61 dias) (p=0,61). CONCLUSÃO: A proporção de pacientes esquizofrênicos que recaíram foi similar em ambos os grupos. Contudo, o tempo para a recaída foi mais curto nos pacientes tratados com haloperidol.

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          Most cited references31

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          Neuroleptics and the natural course of schizophrenia.

          T. Wyatt (1990)
          To determine if neuroleptic treatment changes the natural course of schizophrenia, 22 studies were reviewed in which relatively similar patients were or were not given neuroleptics at specific times during the course of their illness. Nineteen of the studies were from first- or predominantly first-break populations. While there was little consensus among the authors of the studies reviewed, a reanalysis of the data indicates that early intervention with neuroleptics in first-break schizophrenic patients increases the likelihood of an improved long-term course. This finding is similar to that of earlier investigators who indicated there was a decrease in patients with the more severe forms of the illness following the introduction of convulsive therapies. Furthermore, there is evidence that stable schizophrenic patients whose neuroleptics are discontinued and have relapses may have a difficult time returning to their previous level of function. The findings describe in this paper have implications for both the treatment of schizophrenia and for understanding the pathophysiological processes that determine the course of the disorder.
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            Symptoms, signs, and diagnosis of schizophrenia.

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              Pharmacologic treatment of schizophrenia

              Despite pharmacologic advances, the treatment of schizophrenia remains a challenge, and suboptimal outcomes are still all too frequent. Although treatment goals of response, remission, and recovery have been defined more uniformly, a good “effectiveness” measure mapping onto functional outcomes is still lacking. Moreover, the field has to advance in transferring measurement-based approaches from research to clinical practice. There is an ongoing debate whether, and which, first- or second-generation antipsychotics should be used. However, an individualized treatment approach needs to consider current symptoms, comorbid conditions, past therapeutic response, and adverse effects, as well as patient choice and expectations. Moreover, acute and long-term goals and effects of medication treatment need to be balanced. While the acute response to appropriately dosed first-generation antipsychotics may not differ much from second-generation antipsychotics, advantages of lower rates of extrapyramidal side effects, tardive dyskinesia, and, possibly, relapse may favor second-generation antipsychotics. However, when considering individual adverse effect prof iles, the differentiation into first- and second-generation antipsychotics as unified classes can not be upheld, and a more differentiated view and treatment selection is required. To date, clozapine is the only evidence-based treatment for refractory patients, and the role of antipsychotic polypharmacy and other augmentation strategies remains unclear, at best. To improve the treatment outcomes in schizophrenia, research efforts are needed that elucidate biomarkers of the illness and of treatment response (both therapeutic and adverse effects). Moreover, new treatment options are needed that affect nondopaminergic targets with relevance for symptom reduction, relapse prevention, enhanced efficacy for nonresponders, and reduced key adverse effects.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbp
                Revista Brasileira de Psiquiatria
                Rev. Bras. Psiquiatr.
                Associação Brasileira de Psiquiatria - ABP (São Paulo )
                1809-452X
                October 2003
                : 25
                : 4
                : 220-223
                Affiliations
                [1 ] Universidade Federal da Bahia Brazil
                Article
                S1516-44462003000400007
                10.1590/S1516-44462003000400007
                49cfcf89-3b55-4da3-af67-b1b89d0115e3

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1516-4446&lng=en
                Categories
                PSYCHIATRY

                Clinical Psychology & Psychiatry
                Risperidone,Haloperidol,Antipsychotic,Schizophrenia,Relapse prevention,Risperidona,Antipsicótico,Esquizofrenia,Prevenção de recaída

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