The prevalence of Capgras syndrome in a university hospital setting

Tamam, Lut; Karataş, Gonca; Zeren, Tayfun; Özpoyraz, Nurgül

doi:10.1034/j.1601-5215.2003.00039.x

Cited by 16 publications

(10 citation statements)

References 25 publications

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“…The keyword 'Capgras' was then used in a formal search of free-text record fields, retrieving records from 187 patients. Previous case-identification studies have tended to select cases based on informal labels used by consulting clinicians, 11 or single-rater review of case notes using a brief description of the delusion (see Tamam et al 12 ). In this study, the 187 anonymised records were subsequently independently rated by a psychiatrist and clinical psychologist for the likely presence of Capgras delusion using the structured classification system described in Fig.…”

Section: Case Selectionmentioning

confidence: 99%

Uncovering Capgras delusion using a large-scale medical records database

et al. 2017

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BackgroundCapgras delusion is scientifically important but most commonly reported as single case studies. Studies analysing large clinical records databases focus on common disorders but none have investigated rare syndromes.AimsIdentify cases of Capgras delusion and associated psychopathology, demographics, cognitive function and neuropathology in light of existing models.MethodCombined computational data extraction and qualitative classification using 250 000 case records from South London and Maudsley Clinical Record Interactive Search (CRIS) database.ResultsWe identified 84 individuals and extracted diagnosis-matched comparison groups. Capgras was not ‘monothematic’ in the majority of cases. Most cases involved misidentified family members or close partners but others were misidentified in 25% of cases, contrary to dual-route face recognition models. Neuroimaging provided no evidence for predominantly right hemisphere damage. Individuals were ethnically diverse with a range of psychosis spectrum diagnoses.ConclusionsCapgras is more diverse than current models assume. Identification of rare syndromes complements existing ‘big data’ approaches in psychiatry.Declaration of interestsV.B. is supported by a Wellcome Trust Seed Award in Science (200589/Z/16/Z) and the UCLH NIHR Biomedical Research Centre. S.W. is supported by a Wellcome Trust Strategic Award (WT098455MA). Q.D. has received a grant from King’s Health Partners.Copyright and usage© The Royal College of Psychiatrists 2017. This is an open access article distributed under the terms of the Creative Commons Non-Commercial, No Derivatives (CC BY-NC-ND) license.

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Section: Case Selectionmentioning

confidence: 99%

Uncovering Capgras delusion using a large-scale medical records database

et al. 2017

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“…A study conducted in an acute psychiatric service found that the CS rate was 2.5%, 24 and in another study that evaluated the previous 5 years of patients’ records in a university hospital, the rate was 1.3%. 25 This syndrome can affect both genders at all ages; however, some authors found higher prevalence in females than in males, with a 2:1 ratio. 26 Few reports have described this syndrome during childhood.…”

Section: Introductionmentioning

confidence: 99%

Delusional Misidentification Syndromes and Dementia

Cipriani¹,

Vedovello²,

Ulivi³

et al. 2013

Am J Alzheimers Dis Other Demen

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The delusional misidentification syndromes (DMSs) are psychopathologic phenomena in which a patient consistently misidentifies persons, places, objects, or events. Although often described in relation to psychotic states including schzofrenia, it is, nevertheless, widely considered that these syndromes have an anatomical basis because of their frequent association with organic brain disease; studies have pointed to the presence of identifiable lesions, especially in the right frontal lobe and adjacent regions, in a considerable proportion of patients. The purpose of this article is to examine the phenomenon in people with dementia. We searched the electronic databases for original research and review articles on DMS in patients with dementia using the search terms "Delusional Misidentification Syndrome, Capgras syndrome, Fregoli syndrome, reduplicative paramnesia, and dementia." The DMSs are a frequent problem in dementia. The violence and dangerousness in patients with dementia having these syndromes are well documented, and forensic aspects are highlighted. Pathogenetic viewpoint and management are considered.

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“…Signer reviewed 750 cases with DMSs, out of which 200 cases had an organic contributor (8). But as mentioned in the Introduction, two patients of 920 cases presented with an organic etiology underlying Capgras syndrome in Taman's review (3). Capgras syndrome was reported as a part of early post-head injury delirium (9).…”

Section: Resultsmentioning

confidence: 99%

“…Two patients presented with an organic etiology underlying Capgras syndrome. They concluded that Capgras syndrome is not a rare syndrome (3).…”

Section: Introductionmentioning

confidence: 99%