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Review
. 2011 Sep;37(5):921-9.
doi: 10.1093/schbul/sbr041. Epub 2011 May 11.

Pathways to aggression in schizophrenia affect results of treatment

Jan Volavka  1 , Leslie Citrome
Affiliations
Review

Pathways to aggression in schizophrenia affect results of treatment

Jan Volavka et al. Schizophr Bull. 2011 Sep.

Abstract

Schizophrenia elevates the risk for aggressive behavior and violent crime, and different approaches have been used to manage this problem. The results of such treatments vary. One reason for this variation is that aggressive behavior in schizophrenia is heterogeneous in origin. This heterogeneity has usually not been accounted for in treatment trials nor is it adequately appreciated in routine clinical treatment planning. Here, we review pathways that may lead to the development of aggressive behavior in patients with schizophrenia and discuss their impact on treatment. Elements in these pathways include predisposing factors such as genotype and prenatal toxic effects, development of psychotic symptoms and neurocognitive impairments, substance abuse, nonadherence to treatment, childhood maltreatment, conduct disorder, comorbid antisocial personality disorder/psychopathy, and stressful experiences in adult life. Clinicians' knowledge of the patient's historical trajectory along these pathways may inform the choice of optimal treatment of aggressive behavior. Clozapine has superior antiaggressive activity in comparison with other antipsychotics and with all other pharmacological treatments. It is usually effective when aggressive behavior is related to psychotic symptoms. However, in many patients, aggression is at least partly based on other factors such as comorbid substance use disorder, comorbid antisocial personality disorder/psychopathy, or current stress. These conditions which are sometimes underdiagnosed in clinical practice must be addressed by appropriate adjunctive psychosocial approaches or other treatments. Treatment adherence has a crucial role in the prevention of aggressive behavior in schizophrenia patients.

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Figures

Fig. 1.
Fig. 1.
Probable causal pathways to aggression in schizophrenia. Adapted, with permission, from Figure 12.3 In: Volavka J, Swanson JW, Citrome L. Managing violence and aggression in schizophrenia. In: Lieberman JA, Murray RM, eds. Comprehensive Care of Schizophrenia: A Textbook of Clinical Management. 2nd ed.. New York, NY: Oxford University Press; 2011
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