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Dive into the research topics where Georges Brousse is active.

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Featured researches published by Georges Brousse.


Occupational Medicine | 2008

Psychopathological features of a patient population of targets of workplace bullying

Georges Brousse; Luc Fontana; Lemlih Ouchchane; Caroline Boisson; Laurent Gerbaud; Delphine Bourguet; Annick Perrier; Audrey Schmitt; Pierre Michel Llorca; Alain Chamoux

BACKGROUND A strong association between workplace bullying and subsequent anxiety and depression, indicated by empirical research, suggests that bullying is an aetiological factor for mental health problems. AIMS To evaluate levels of stress and anxiety-depression disorder developed by targets of workplace bullying together with outcome at 12 months and to characterize this population in terms of psychopathology and sociodemographic features. METHODS Forty-eight patients (36 women and 12 men) meeting Leymann Inventory of Psychological Terror criteria for bullying were included in a prospective study. Evaluations were performed at first consultation and at 12 months using a standard clinical interview, a visual analogue scale of stress, the Hospital Anxiety and Depression (HAD) scale, the Beech scale of stress in the workplace and a projective test (Picture-Frustration Study). RESULTS At first consultation, 81% of patients showed high levels of perceived stress at work and 83 and 52% presented with anxiety or depression, respectively. At 12 months, only 19% of working patients expressed a feeling of stress at work. There was a significant change in symptoms of anxiety while there was no change in symptoms of depression. Stress at work and depression influenced significatively capacity to go back to work. At 12-month assessments, workers showed a significantly better score on the HAD scale than non-workers. Over half the targets presented a neuroticism-related predominant personality trait. CONCLUSION Workplace bullying can have severe mental health repercussions, triggering serious and persistent underlying disorders.


International Journal of Environmental Research and Public Health | 2013

Alcohol and violence in the emergency room: A review and perspectives from psychological and social sciences

Oulmann Zerhouni; Laurent Bègue; Georges Brousse; Françoise Carpentier; Maurice Dematteis; Lucie Pennel; Joel Swendsen; Cheryl J. Cherpitel

Our objective is to present a focused review of the scientific literature on the effect of alcohol consumption on violence related-injuries assessed in the emergency room (ER) and to show how psychological and behavioral sciences could lead to a better understanding of the factors contributing to alcohol-related injuries in the ER. We retrieved published literature through a detailed search in Academic Search Premier, MEDLINE with Full Text PsycARTICLES, Psychology and Behavioral Sciences Collection, PsycINFO, PUBMed and SocINDEX with Full Text for articles related to emergency rooms, medical problems and sociocognitive models addressing alcohol intoxication articles. The first search was conducted in June 2011 and updated until August 2013. Literature shows that compared to uninjured patients; injured ones have a higher probability of: (i) having an elevated blood-alcohol concentration upon arrival at the ER; (ii) reporting having drunk alcohol during the six hours preceding the event; and (iii) suffering from drinking-related consequences that adversely affect their social life. The main neurocognitive and sociocognitive models on alcohol and aggression are also discussed in order to understand the aetiology of violence-related injuries in emergency rooms. Suggestions are made for future research and prevention.


Alcohol and Alcoholism | 2012

CAGE, RAPS4, RAPS4-QF and AUDIT Screening Tests for Men and Women Admitted for Acute Alcohol Intoxication to an Emergency Department: Are Standard Thresholds Appropriate?

Julie Geneste; Bruno Pereira; Benjamin Arnaud; N. Christol; J. Liotier; O. Blanc; F. Teissedre; Suzy Hope; R. Schwan; Pierre-Michel Llorca; Jeannot Schmidt; Cheryl J. Cherpitel; Laurent Malet; Georges Brousse

AIMS A number of screening instruments are routinely used in Emergency Department (ED) situations to identify alcohol-use disorders (AUD). We wished to study the psychometric features, particularly concerning optimal thresholds scores (TSs), of four assessment scales frequently used to screen for abuse and/or dependence, the cut-down annoyed guilty eye-opener (CAGE), Rapid Alcohol Problem Screen 4 (RAPS4), RAPS4-quantity-frequency and AUD Identification Test (AUDIT) questionnaires, particularly in the sub-group of people admitted for acute alcohol intoxication (AAI). METHODS All included patients [AAI admitted to ED (blood alcohol level ≥0.8 g/l)] were assessed by the four scales, and with a gold standard (alcohol dependence/abuse section of the Mini International Neuropsychiatric Interview), to determine AUD status. To investigate the TSs of the scales, we used Youdens index, efficiency, receiver operating characteristic (ROC) curve techniques and quality ROC curve technique for optimized TS (indices of quality). RESULTS A total of 164 persons (122 males, 42 females) were included in the study. Nineteen (11.60%) were identified as alcohol abusers alone and 128 (78.1%) as alcohol dependents (DSM-IV). Results suggest a statistically significant difference between men and women (P < 0.05) in performance of the screening tests RAPS4 (≥1) and CAGE (≥2) for detecting abuse. Also, in this population, we show an increase in TSs of RAPS4 (≥2) and CAGE (≥3) for detecting dependence compared with those typically accepted in non-intoxicated individuals. The AUDIT test demonstrates good performance for detecting alcohol abuse and/or alcohol-dependent patients (≥7 for women and ≥12 for men) and for distinguishing alcohol dependence (≥11 for women and ≥14 for men) from other conditions. CONCLUSION Our study underscores for the first time the need to adapt, taking into account gender, the thresholds of tests typically used for detection of abuse and dependence in this population.


Fundamental & Clinical Pharmacology | 2009

Pharmacogenetic of response efficacy to antipsychotics in schizophrenia: pharmacodynamic aspects. Review and implications for clinical research

O. Blanc; Georges Brousse; Alexandre Méary; Marion Leboyer; Pierre-Michel Llorca

Pharmacogenetics constitutes a new and growing therapeutic approach in the identification of the predictive factors of the response to antipsychotic treatment. This review aims to summarize recent finding into pharmacodynamic approach of pharmacogenetics of antipsychotics and particularly second generation. Studies were identified in the MEDLINE database from 1993 to July 2008 by combining the following Medical Subject Heading search terms: genetic, polymorphism, single nucleotide polymorphism, pharmacogenetics, antipsychotics, and response to treatment as well as individual antipsychotics names. Only pharmacodynamics studies were analyzed and we focused on efficacy studies. We also reviewed the references of ll identified articles. Most studies follow a polymorphism‐by‐polymorphism approach, and concern polymorphisms of genes coding for dopamine and serotonin receptors. Haplotypic approach has been considered in some studies. Few have studied the combinations of polymorphisms of several genes as a predictive factor of the response to antipsychotics. We present this gene‐by‐gene approach while detailing the features of the polymorphisms being studied (functionality, linkage disequilibrium) and the features of the studies (studied treatment(s), prospective/retrospective study, pharmacological dosage). We discuss the heterogeneity of the results and their potential clinical implications and extract methodological suggestions for the future concerning phenotype characterization, genotypes variants studied and methodological and statistical approach.


Scientific Reports | 2016

Hallucinations in schizophrenia and Parkinson's disease: an analysis of sensory modalities involved and the repercussion on patients.

Pierre-Michel Llorca; Bruno Pereira; R. Jardri; I. Chereau-Boudet; Georges Brousse; D. Misdrahi; G. Fénelon; A.-M. Tronche; Raymund Schwan; Christophe Lançon; Ana Marques; Miguel Ulla; Philippe Derost; Bérengère Debilly; Franck Durif; I. de Chazeron

Hallucinations have been described in various clinical populations, but they are neither disorder nor disease specific. In schizophrenia patients, hallucinations are hallmark symptoms and auditory ones are described as the more frequent. In Parkinson’s disease, the descriptions of hallucination modalities are sparse, but the hallucinations do tend to have less negative consequences. Our study aims to explore the phenomenology of hallucinations in both hallucinating schizophrenia patients and Parkinson’s disease patients using the Psycho-Sensory hAllucinations Scale (PSAS). The main objective is to describe the phenomena of these clinical symptoms in those two specific populations. Each hallucinatory sensory modality significantly differed between Parkinson’s disease and schizophrenia patients. Auditory, olfactory/gustatory and cœnesthetic hallucinations were more frequent in schizophrenia than visual hallucinations. The guardian angel item, usually not explored in schizophrenia, was described by 46% of these patients. The combination of auditory and visual hallucinations was the most frequent for both Parkinson’s disease and schizophrenia. The repercussion index summing characteristics of each hallucination (frequency, duration, negative aspects, conviction, impact, control and sound intensity) was always higher for schizophrenia. A broader view including widespread characteristics and interdisciplinary works must be encouraged to better understand the complexity of the process involved in hallucinations.


Psychiatry Research-neuroimaging | 2010

Clinical predictors of response to olanzapine or risperidone during acute episode of schizophrenia

Georges Brousse; Alexandre Méary; O. Blanc; Christophe Lançon; Pierre Michel Llorca; Marion Leboyer

The study attempted to identify clinical variables which could predict the response to a second-generation antipsychotic treatment during acute episodes among schizophrenic patients. Socio-demographic, premorbid and clinical variables were studied in a population of 95 diagnosed with schizophrenia, as defined in the Diagnostic and Statistical Manual of Mental Disorders, fourth edition (DSMIV), during an acute treated phase, in a multicentre prospective study. Patients were assigned to olanzapine or risperidone treatment in an open design. Clinical evaluations were performed at D0, D42 and D180. Good response to treatment was defined as a Positive and Negative Syndrome Scale (PANSS) reduction greater than 20% and a Brief Psychiatric Rating Scale (BPRS) score lower than 35. Univariate analysis revealed earlier age at onset of schizophrenia and earlier age at first prescription of antipsychotic among non-responders compared with good responders at D42. Non-responders also had a clinical profile at the onset of antipsychotic treatment characterised by more severe forms of the acute episode as shown by higher scores at the positive, general and overall PANSS scale and on CGI-S and BPRS scores. With a multivariate logistic regression model, age at onset and overall duration of illness remained the only clinical criteria identified as predictors of response to antipsychotic treatment at D42. Clinical variables do not clearly appear to be good predictors of treatment efficacy.


Drug and Alcohol Dependence | 2017

Comparison between the WHO and NIAAA criteria for binge drinking on drinking features and alcohol-related aftermaths: Results from a cross-sectional study among eight emergency wards in France

Benjamin Rolland; Ingrid de Chazeron; Françoise Carpentier; Fares Moustafa; Alain Viallon; Xavier Jacob; Patrick Lesage; Delphine Ragonnet; Annick Genty; Julie Geneste; Emmanuel Poulet; Maurice Dematteis; Pierre-Michel Llorca; Mickaël Naassila; Georges Brousse

BACKGROUND Binge drinking (BD) consists of heavy episodic alcohol use. Whereas the World Health Organization (WHO) defines BD as 60g of alcohol or more per occasion, the National Institute on Alcoholism and Alcohol Abuse (NIAAA) conceives BD as drinking 70g (men) or 56g (women) in less than two hours. We compared the subjects delineated by each definition. METHODS Eight-center cross-sectional study among 11,695 subjects hospitalized in emergency wards. Participants completed the Alcohol Use Disorders Identification Test - Consumption (AUDIT-C), CAGE and Rapid Alcohol Problem Screen 4 (RAPS4-QF) questionnaires. The WHO criteria were investigated using the RAPS4-QF. Independent questions assessed the NIAAA criteria. The main medical admission motive was noted. The characteristics of subjects meeting respectively: 1) the exclusive WHO criteria (BD1); 2) the NIAAA criteria (BD2); and 3) no BD criteria (noBD) were compared using multinomial regression analyses. Binary age- and gender-adjusted regression analyses directly compared BD1 and BD2. Subjects with at least four drinking occasions per week were excluded from the analyses, to withdrawn regular heavy drinking. RESULTS Compared to BD1, BD2 subjects were more frequently males (OR=1.67 [1.39-2.0]), single (aOR=1.64 [1.36-1.98]) and unemployed (aOR=1.57 [1.27-1.90]). BD2 reported significantly more drinks per occasion, and higher heavy drinking frequencies. Previous alcohol-related remarks from family (aOR=3.00 [2.53-3.56]), ever drinking on waking-up (aOR=2.05 [1.37-2.72]), and admission for psychiatric motive (aOR=2.27 [1.68-3.07]) were more frequent among BD2 subjects. CONCLUSIONS Compared to WHO criteria, NIAAA criteria for BD delineate subjects with more concerning drinking patterns and alcohol aftermaths.


Drug and Alcohol Dependence | 2016

Incidence of high dosage buprenorphine and methadone shopping behavior in a retrospective cohort of opioid-maintained patients in France

Jessica Delorme; Chouki Chenaf; Jean-Luc Kabore; Bruno Pereira; Aurélien Mulliez; Aurore Tremey; Georges Brousse; Marie Zenut; Catherine Laporte; Nicolas Authier

BACKGROUND Opioid Substitution Treatment (OST) misuse and diversion have significantly increased worldwide. Obtaining OST prescriptions from multiple prescribers, known as doctor shopping, is a way in which opioids may be diverted. OBJECTIVES The aim of this study was to assess the incidence of OST (high dosage buprenorphine (HDB) and methadone (MTD)) shopping behavior and identify associated risk factors, and its impact on mortality. METHODS A retrospective cohort of patients treated by OST between April 1, 2004 and December 31, 2012 from a sample of the French Health Insurance database was established. Doctor shopping was defined as ≥1 day of overlapping prescriptions written by ≥2 different prescribers and filled in ≥3 different pharmacies. RESULTS A total of 2043 patients were enrolled, 1450HDB and 593 MTD. The one-year incidence of shopping behavior was 8.4% (95% CI: 7.0-10.1) in HDB group and 0% in MTD group, compared to 0.2% (95% CI: 0.1-0.2) for diuretics. On multivariate analysis, factors associated with HDB shopping behavior were: male gender HR: 1.74 (95% CI: 1.20-2.54); low-income status HR: 2.95 (95% CI: 2.07-4.44); mental health disorders HR: 1.43 (95% CI: 1.06-1.94); concurrent hypnotics use HR: 1.90 (95% CI: 1.39-2.61); concurrent use of weak opioids HR: 1.48 (95% CI: 1.09-1.99) and morphine HR: 1.69 (95% CI: 1.02-2.80). HDB shoppers had a higher, yet non-significant risk of death (HR: 1.56 (95% CI: 0.64-3.81)) than non HDB shoppers. CONCLUSION Shopping behavior was only found in high dosage buprenorphine patients and concerned almost one out ten patients.


Alcohol and Alcoholism | 2012

Alteration of Glutamate/GABA Balance During Acute Alcohol Withdrawal in Emergency Department: A Prospective Analysis

Georges Brousse; Benjamin Arnaud; F. Vorspan; Damien Richard; A. Dissard; M. Dubois; D. Pic; Julie Geneste; L. Xavier; N. Authier; Vincent Sapin; Pierre-Michel Llorca; I. De Chazeron; R. Minet-Quinard; Jeannot Schmidt

AIMS Animal studies suggest that in alcohol withdrawal the balance of neurotransmitters gamma aminobutyric acid (GABA) and glutamate is altered. To test this in humans, we aimed to measure plasma levels of glutamate, GABA and glutamate/GABA ratio in alcoholic patients presenting with complicated AWS with the same values in non-alcohol abuser/dependent controls and to determine prognostic factors for severe withdrawal. METHODS 88 patients admitted to the emergency room for acute alcohol intoxication (DSM-IV) were prospectively included. Measurements of GABA and glutamate were performed on admission (Time 1, T1) and after 12 ± 2 h (T2). The experimental group (EG) was composed of 23 patients who presented at T2 with a severe AWS. The control group (CG) consisted of healthy subjects paired with the EG (gender and age). Logistic regression was performed in order to compare associated clinical and biological variables that could predict severe withdrawal. RESULTS The concentration of GABA in the EG at T1 was significantly lower than that in the CG. The concentration of glutamate in the EG at T1 was significantly higher than that in the CG. The glutamate/GABA ratio in the EG at T1 was significantly higher than the ratio in the CG. With a multivariate logistic regression model, glutamate level at admission remained the only criterion identified as a predictor of AWS at 12 h. CONCLUSION Decreased synthesis of GABA and increased synthesis of glutamate might be related to withdrawal symptoms experienced on brutal cessation of chronic alcohol intake.


Encephale-revue De Psychiatrie Clinique Biologique Et Therapeutique | 2005

L’escitalopram dans le traitement des épisodes dépressifs majeurs de l’adulte

Pierre-Michel Llorca; Georges Brousse; Raymund Schwan

Resume L’objectif de cette mise au point est de comparer l’efficacite et la tolerance de l’escitalopram dans le traitement des episodes depressifs majeurs (definis par les criteres du DSM IV) a celles du citalopram et de divers autres ISRS et d’un inhibiteur de la recapture de la serotonine et de la noradrenaline, la venlafaxine LP. Le principal critere d’efficacite a ete la variation du score MADRS total (Montgomery-Asberg Depression Rating Scale ; 10 items, score de 0 a 60) entre le debut et la fin de l’etude, les criteres d’efficacite secondaires etant la variation du score HAM-D17 (Hamilton rating scale for Depression-17 items), les scores CGI-S et CGI-I (Clinical Global Impression of Severity et of Improvement), et les taux de reponses (diminution > 50 % du score MADRS) et de remissions (score MADRS12), criteres de choix pour evaluer l’efficacite therapeutique d’un traitement antidepresseur. On considere generalement qu’un patient ambulatoire souffre de symptomes depressifs severes lorsque son score MADRS initial est > 30. La tolerance a ete evaluee en fonction du nombre et du pourcentage d’effets indesirables observes sous traitement, et les effets indesirables lies a l’arret progressif du traitement ont ete evalues a l’aide de l’echelle DESS (Discontinuation Emergent Signs and Symptoms 43 items). Les analyses ont ete effectuees en intention de traiter en utilisant la methode LOCF (Last Observation Carried Forward). Dans tous les cas, l’efficacite de l’escitalopram s’est revelee au moins equivalente a celle des comparateurs actifs, et la difference d’efficacite par rapport aux comparateurs etait d’autant plus marquee que les symptomes depressifs etaient plus severes. Sur le plan de la tolerance, la frequence des evenements indesirables survenus sous traitement et celle des arrets de traitement sont dus a des effets indesirables comparables entre les substances. Cependant la comparaison etait le plus souvent favorable au escitalopram meme si ces differences n’atteignaient pas toujours la significativite. Dans 2 etudes comparant le escitalopram et la venlafaxineXR, les arrets de traitement lies a des effets secondaires ont ete moins frequents sous le escitalopram que sous venlafaxine XR (7,7 % vs 11,2 % et 4,1 % vs 16 % respectivement). Les evenements indesirables emergents a l’arret du traitement mesures apres une semaine par l’echelle DESS ont ete moins frequents pour le escitalopram que pour la venlafaxine a 8 semaines et pour la paroxetine a 24 semaines. Quant au risque suicidaire, une revue d’essais cliniques portant sur 2 277 patients sous escitalopram et 1 814 patients sous placebo a montre que ce risque etait minime et identique dans les deux groupes ; en outre, il n’a ete trouve aucune preuve indiquant que l’escitalopram ait pu susciter un comportement suicidaire comparativement au placebo. Ces resultats suggerent que l’escitalopram occupe maintenant une place de premier choix dans le traitement pharmacologique des episodes depressifs majeurs.

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Bruno Pereira

Centre national de la recherche scientifique

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O. Blanc

University of Auvergne

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Pierre Michel Llorca

Centre national de la recherche scientifique

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Miguel Ulla

Montreal Neurological Institute and Hospital

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Catherine Laporte

French Institute of Health and Medical Research

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