Biomedical subjects

Dominique Bourget

Publications and source records attributed to Dominique Bourget.

5 recordsLinked to original sources

PubMed2006

Fratricide: a forensic psychiatric perspective.

Analyses of fratricide rates based on national homicide data have provided some general information pertaining to offenders and victims of sibling homicide but are limited by data constraints to examining a few major variables. Exploring fratricide from a forensic psychiatric perspective could uncover other related factors and provide insight into why some individuals murder their siblings. In a retrospective study of data from coroners' files on domestic homicide pertaining to individuals killed by their siblings over a 10-year period in Quebec, Canada, we identified several specific offender and victim characteristics and circumstances surrounding offenses. The impact of mental illness and substance abuse on fratricidal behavior is indicated, underscoring the importance of identifying existing psychopathology. From a forensic psychiatric perspective, we identify characteristic patterns and discuss potential dynamics operating in fratricide. We raise some issues relevant to treatment and prevention, including the fact that most cases are alcohol-related, impulsive, and unpredictable until the moment they occur.

Adolescent↗

PubMed2005

Paternal filicide in Québec.

In this retrospective study, relevant demographic, social, and clinical variables were examined in 77 cases of paternal filicide. Between 1991 and 2001, all consecutive coroners' files on domestic homicide in Québec, Canada, were reviewed, and 77 child victims of 60 male parent perpetrators were identified. The results support data indicating that more fathers commit filicide than do mothers. A history of family abuse was characteristic of a substantial number of cases, and most of the cases involved violent means of homicide. Filicide was frequently (60%) followed by the suicide of the perpetrator and more so (86%) in cases involving multiple sibling victims. The abuse of drugs and alcohol was rare. At the time of the offense, most of the perpetrators were suffering from a psychiatric illness, usually depressive disorder. Nearly one-third were in a psychotic state. The proportion of fatal abuse cases was comparatively low. Many of the perpetrators had had contact with health professionals prior to the offense, although none had received treatment for a psychiatric illness.

Adolescent↗

PubMed2004

Capgras syndrome: a review of the neurophysiological correlates and presenting clinical features in cases involving physical violence.

OBJECTIVE: Acts of violence have been frequently reported in cases of Capgras syndrome (CS), a misidentification syndrome characterized by the delusional belief that imposters have replaced people familiar to the individual. CS has been observed in many neuropsychiatric and organic disorders, and neuroimaging studies indicate an association between CS and right hemisphere abnormalities. However, CS has received limited attention from a forensic psychiatric perspective. We propose that elucidating demographic and clinical features noted in cases of violence secondary to CS may highlight important factors in the progression of CS to violence. METHOD: We review the neurophysiological correlates and clinical factors observed in CS and present characteristics of a series of cases that demonstrate the potential of CS patients for severe physical violence toward the misidentified person. RESULTS: For patients with CS involving assault, we present and discuss commonly reported demographic and clinical features that may contribute to an increased risk for violence. CONCLUSIONS: An understanding of the presenting clinical features of CS resulting in aggressive acts may assist clinicians to assess the potential for violence in these patients.

Brain↗

PubMed2002

Switching outpatients with schizophrenia and related disorders on long-acting injectable antipsychotics to olanzapine: an open-label naturalistic pilot study.

Little is known about the feasibility of switching patients with schizophrenia from long-acting injectable antipsychotics to oral olanzapine. We completed an open-label 14-week study to assess such a transition. This study included 25 stable outpatients (DSM-IV diagnosis of schizophrenia, schizophreniform disorder, or schizoaffective disorder) who were receiving long-acting injectable antipsychotics. Following a screening visit, patients began treatment with olanzapine 10 mg/day, which was initiated the day of their scheduled injection. Clinical assessments included the Clinical Global Impression-Improvement Scale (CGI-I) and the Positive and Negative Syndrome Scale (PANSS). Patient self-reports of adverse events were monitored and the Extrapyramidal Symptoms Rating Scale completed at each visit. In those completing the trial (N = 18), results revealed that a switch from injectable antipsychotics to olanzapine was associated with significant improvements on the CGI-I, negative symptoms, PANSS total scores, and parkinsonism. In considering the whole sample (last observation carried forward, N = 25), significant improvements on the CGI-I, parkinsonism, and dyskinesia were observed. Finally, those who failed to complete the trial (N = 7) did not change significantly from visit 1 to endpoint on any of the efficacy or safety measures. These results should be considered preliminary and require replication using appropriate control groups.

Administration, Oral↗

PubMed2002

Maternal filicide in Québec.

In an eight-year review (1991 to 1998) of all consecutive coroners' files in Québec, Canada, the authors identified a total of 34 cases of victims who were killed by their mothers. Most victims were less than six years of age, and there were several cases in which multiple siblings were murdered. There were 27 mothers in the sample, and 15 of those women committed suicide after the filicide. A psychiatric motive was determined for more than 85 percent of the mothers, and most of the mothers had received previous treatment for a depressive or psychotic disorder. Based on the characteristics of this sample, the authors developed a filicide classification system that is flexible and simple to use but must be standardized to become a useful tool for clinicians.

Adult↗