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Psychiatry Journal
Volume 2014, Article ID 834901, 8 pages
http://dx.doi.org/10.1155/2014/834901
Review Article

Suicidal Ideation and Suicidal Behaviour in Delusional Disorder: A Clinical Overview

1Department of Psychiatry and Psychology, Hospital Clinic of Barcelona, University of Barcelona, 170 Villarroel Street, 08036 Barcelona, Spain
2Department of Psychiatry, University Hospital Mutua de Terrassa, 5 Doctor Robert Square, 08221 Terrassa, Spain
3Department of Psychiatry and Psychology, Hospital Clinic of Barcelona, University of Barcelona, IDIBAPS, CIBERSAM, 170 Villarroel Street, 08036 Barcelona, Spain

Received 25 October 2013; Accepted 28 November 2013; Published 30 January 2014

Academic Editor: Umberto Albert

Copyright © 2014 Alexandre González-Rodríguez et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. Most of the existing studies suggest that suicide is one of the leading causes of premature death in patients with chronic psychotic disorders. However, very few studies have specifically investigated suicidal behaviour in patients with delusional disorder. Thus, our objective was to review the literature regarding the percentage of lifetime ideation and suicidal behaviour in delusional disorder in order to provide suggestions for clinical practice. Methods. MEDLINE and PsycINFO were searched from January 1980 to September 2012 using the following keywords: delusional disorder, paranoia, suicidal ideation, and suicidal behaviour. Results. A total of 10 studies were identified and included in the review. The percentage of suicidal behaviour in delusional disorder was established between 8 and 21%, which is similar to schizophrenia. Suicidal ideation and suicide attempts were more frequent in patients showing persecutory and somatic delusions in the reviewed studies. Conclusions. To the best of our knowledge this is the first attempt to specifically review the suicide phenomenon in patients with delusional disorder. Interestingly, our results support the notion that percentages of both suicidal ideation and behaviour in delusional disorder are similar to patients with schizophrenia.