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Mallet L. Les ganglions de la base sont-ils impliques dans les affections psychiatriques ? Rev Neurol (Paris) 2013. [DOI: 10.1016/j.neurol.2013.01.581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Morgiève M, N’Diaye K, Haynes W, Granger B, Clair AH, Pelissolo A, Mallet L. 1113 – Dynamics of cognitive and behavioural therapy-related fMRI changes in obsessive compulsive disorder using a personalised symptom provocation task. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)76217-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Lerebours AE, Haynes W, N’Diaye K, Mallet L. 2289 – Integration of emotions towards decision-making: behavioural performances of OCD patients and their MEG correlates compared to healthy controls. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)77148-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Mallet L. 3029 – Bridging the gap between physio- and psychopathology: the example of deep brain stimulation in human-repetitive behaviours. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)77525-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Abstract
People are living to older age. Demographic pressures are driving change. Opiate analgesics are the most powerful known pain relievers. Persistent pain, both cancer and non-cancer types is frequent in older adults. The use of opioid analgesics is appropriate in the treatment of moderate to severe persistent pain. The challenge of prescribing opioids in older adults is to understand the factors involved in making appropriate choices and monitoring the beneficial effects of pain relief while managing the side-effects. This article will review the current concepts, evidence and controversies surrounding opiate use in the elderly. An approach is outlined which involves: pain assessment, screening for substance abuse potential, deciding whether you are able to treat your patient without help, starting treatment, monitoring effectiveness of pain control and managing opioid-associated side-effects. The goal of pain management using opioids is the attainment of improved function and quality of life.
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Charbonneau-Allard A, Mallet L. What is the anticholinergic load and how to use it in clinical practice? Eur Geriatr Med 2012. [DOI: 10.1016/j.eurger.2012.07.267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Morgiève M, N’Diaye K, Gaudeau C, Clair AH, Pelissolo A, Mallet L. Évaluation longitudinale en IRMf de la thérapie cognitive et comportementale pour les patients atteints de trouble obsessionnel compulsif : y-a-t-il des marqueurs neurobiologiques de la réponse au traitement ? Encephale 2012. [DOI: 10.1016/j.encep.2012.07.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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N’Diaye K, Clair AH, Pochon JB, Mallet L. The neural bases of checking behavior: An fMRI study in OCD patients. Encephale 2012. [DOI: 10.1016/j.encep.2012.07.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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N’Diaye K, Clair AH, Pochon JB, Mallet L. Les bases neurales du comportement de vérification : une étude en IRMf chez des patients souffrant de trouble obsessionnel compulsif (TOC). Encephale 2012. [DOI: 10.1016/j.encep.2012.07.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Somers A, Mallet L, Van Der Cammen T, Robays H, Petrovic M. Applicability of an adapted medication appropriateness index (MAI) for detection of drug related problems in geriatric inpatients. Eur Geriatr Med 2012. [DOI: 10.1016/j.eurger.2012.07.294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Haynes WIA, Millet B, Mallet L. [Obsessive-compulsive disorder, a new model of basal ganglia dysfunction? Elements from deep brain stimulation studies]. Rev Neurol (Paris) 2012; 168:649-54. [PMID: 22898561 DOI: 10.1016/j.neurol.2012.05.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Accepted: 05/25/2012] [Indexed: 11/25/2022]
Abstract
Deep brain stimulation was first developed for movement disorders but is now being offered as a therapeutic alternative in severe psychiatric disorders after the failure of conventional therapies. One of such pathologies is obsessive-compulsive disorder. This disorder which associates intrusive thoughts (obsessions) and repetitive irrepressible rituals (compulsions) is characterized by a dysfunction of a cortico-subcortical loop. After having reviewed the pathophysiological evidence to show why deep brain stimulation was an interesting path to take for severe and resistant cases of obsessive-compulsive disorder, we will present the results of the different clinical trials. Finally, we will provide possible mechanisms for the effects of deep brain stimulation in this pathology.
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Huang AR, Mallet L, Rochefort CM, Eguale T, Buckeridge DL, Tamblyn R. Medication-Related Falls in the Elderly. Drugs Aging 2012; 29:359-76. [DOI: 10.2165/11599460-000000000-00000] [Citation(s) in RCA: 230] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Welter ML, Czernecki V, Schupbach M, Fernandez-Vidal S, Karachi C, Navarro S, Cornu P, Pidoux B, Mallet L, Dormont D, Vidailhet M, Grabli D, Bonnet AM, Belaid H, Houeto JL, Bardinet E, Yelnik J, Agid Y. Why Does Bilateral Subthalamic Stimulation Induced Cognitive Decline in Patients with Parkinson's Disease? (S52.005). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.s52.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Welter ML, Czernecki V, Schupbach M, Fernandez-Vidal S, Karachi C, Navarro S, Cornu P, Pidoux B, Mallet L, Dormont D, Vidailhet M, Grabli D, Bonnet AM, Belaid H, Houeto JL, Bardinet E, Yelnik J, Agid Y. Why Does Bilateral Subthalamic Stimulation Induced Cognitive Decline in Patients with Parkinson's Disease? (IN6-2.001). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.in6-2.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Mallet L. Stimulation cérébrale profonde et TOC. Rev Neurol (Paris) 2012. [DOI: 10.1016/j.neurol.2012.01.540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Somers A, Mallet L, van der Cammen T, Robays H, Petrovic M. Applicability of an adapted medication appropriateness index for detection of drug-related problems in geriatric inpatients. ACTA ACUST UNITED AC 2012; 10:101-9. [PMID: 22304791 DOI: 10.1016/j.amjopharm.2012.01.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Revised: 12/18/2011] [Accepted: 01/03/2012] [Indexed: 11/29/2022]
Abstract
BACKGROUND High drug consumption by older patients and the presence of many drug-related problems require careful assessment of drug therapy, for which a structured approach is recommended. OBJECTIVE The purpose of our study was to evaluate the applicability of an adapted version of the Medication Appropriateness Index (MAI) in 50 geriatric inpatients at the time of admission. METHODS We reviewed, for 432 prescribed drugs, indication, right choice, dosage, directions, drug-disease interactions, drug-drug interactions, and duration of therapy. In addition, adverse drug reactions were evaluated, resulting in 8 questions per drug. MAI scores were attributed independently by a geriatrician and by a clinical pharmacist, and differences between them were assessed. Furthermore, the relationship between MAI score and drug-related hospital admission was explored. RESULTS Mean summed MAI scores of 13.7 according to the geriatrician and 13.6 according to the pharmacist were obtained. The highest scores were found for drugs for the central nervous and the urinary tract system; the highest scores per question were detected for right choice, adverse drug reactions, and drug-drug interactions. A good agreement between the scores of the geriatrician and the pharmacist was found: intraclass correlation coefficient was 0.91 and overall κ value was 0.71. A significantly higher MAI score was found for drug-related hospital admissions (P = 0.04 for the geriatrician and P = 0.03 for the pharmacist). CONCLUSIONS This adapted MAI score seems useful for detection of drug-related problems in geriatric inpatients and reliable with a low inter-rater variability and positive correlation between high score and drug-related hospital admission. We consider further application of the adapted MAI for teaching and training of clinical pharmacists, and as a systematic approach for detection of drug-related problems by the clinical pharmacists in our hospital.
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Morgieve M, 'Diaye K, Gaudeau C, Clair AH, Pelissolo A, Mallet L. P-814 - Longitudinal fMRI assesment of cognitive and behavioral therapy for obsessive compulsive disorder: are there neurobiological markers of response to treatment? Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)74981-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Baunez C, Yelnik J, Mallet L. Six questions on the subthalamic nucleus: lessons from animal models and from stimulated patients. Neuroscience 2011; 198:193-204. [PMID: 22001680 DOI: 10.1016/j.neuroscience.2011.09.059] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 09/22/2011] [Accepted: 09/26/2011] [Indexed: 01/08/2023]
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Morgieve M, Clair AH, Saulton A, N’Diaye K, Pelissolo A, Mallet L. Objective and subjective improvement after a new form of cognitive and behavioral therapy for obsessive compulsive disorder patients. Eur Psychiatry 2011. [DOI: 10.1016/s0924-9338(11)72680-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
IntroductionCognitive and Behavioral Therapy (CBT) is one of the two treatments recognized as most efficient to improve Obsessive Compulsive Disorder (OCD) symptoms.ObjectivesThe major aim of this study is to facilitate CBT for OCD checkers. To this purpose, we developed a new psycho-pedagogic tool to be used during CBT sessions and assessed its objective efficacy and the patients’ perception of their therapy.MethodologyExperimental CBT sessions included a “checking task”, composed of a “matching task” followed by a “checking phase” during which subjects were given the opportunity to check or to confirm their prior answer. This tool was appended to a classical CBT (as described in the literature).30 OCD patients with checking compulsions each followed 15 individual CBT sessions with a psychologist. They were randomized in two groups: a “reference CBT” (CBT classically described in literature) and an “experimental CBT” (reference CBT + checking task) group. Symptom severity was assessed by the Y-BOCS and CGI at three main stages of the therapies: before, at half-therapy, at the end of therapy and 6 months later. Assessment was performed blindly by an expert psychologist to avoid any bias, and the patients’ impressions were collected at the same time.ResultsAt the end of therapies, symptom severity decreased significantly (24.08 to 12.5) and participants had a better global functioning, especially in their social and familial lives.ConclusionsBoth CBT offer an important clinical improvement of OCD symptoms. Patients and psychologists expressed their satisfaction at having participated to the study.
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Roussel A, Petit E, Mallet L, Zins M. Splénose : intérêt de l’IRM avec injection de produit de contraste superparamagnétique. ACTA ACUST UNITED AC 2008; 89:1944-6. [DOI: 10.1016/s0221-0363(08)74792-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Lohmann E, Thobois S, Lesage S, Broussolle E, du Montcel ST, Ribeiro MJ, Remy P, Pelissolo A, Dubois B, Mallet L, Pollak P, Agid Y, Brice A. A multidisciplinary study of patients with early-onset PD with and without parkin mutations. Neurology 2008; 72:110-6. [PMID: 18987353 DOI: 10.1212/01.wnl.0000327098.86861.d4] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To establish phenotype-genotype correlations in early-onset Parkinson disease (EOPD), we performed neurologic, neuropsychological, and psychiatric evaluations in a series of patients with and without parkin mutations. BACKGROUND Parkin (PARK2) gene mutations are the major cause of autosomal recessive parkinsonism. The usual clinical features are early-onset typical PD with a slow clinical course, an excellent response to low doses of levodopa, frequent treatment-induced dyskinesias, and the absence of dementia. METHODS A total of 44 patients with EOPD (21 with and 23 without parkin mutations) and 9 unaffected single heterozygous carriers of parkin mutations underwent extensive clinical, neuropsychological, and psychiatric examinations. RESULTS The neurologic, neuropsychological, and psychiatric features were similar in all patients, except for significantly lower daily doses of dopaminergic treatment and greater delay in the development of levodopa-related fluctuations (p < 0.05) in parkin mutation carriers compared to noncarriers. There was no major difference between the two groups in terms of general cognitive efficiency. Psychiatric manifestations (depression) were more frequent in patients than in healthy single heterozygous parkin carriers but did not differ between the two groups of patients. CONCLUSION Carriers of parkin mutations are clinically indistinguishable from other patients with young-onset Parkinson disease (PD) on an individual basis. Severe generalized loss of dopaminergic neurons in the substantia nigra pars compacta in these patients is associated with an excellent response to low doses of dopa-equivalent and delayed fluctuations, but cognitive impairment and special behavioral or psychiatric symptoms were not more severe than in other patients with early-onset PD.
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Duque G, Fung S, Mallet L, Posel N, Fleiszer D. Learning While Having Fun: The Use of Video Gaming to Teach Geriatric House Calls to Medical Students. J Am Geriatr Soc 2008; 56:1328-32. [PMID: 18482292 DOI: 10.1111/j.1532-5415.2008.01759.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Rotge JY, Clair AH, Jaafari N, Hantouche EG, Pelissolo A, Goillandeau M, Pochon JB, Guehl D, Bioulac B, Burbaud P, Tignol J, Mallet L, Aouizerate B. A challenging task for assessment of checking behaviors in obsessive-compulsive disorder. Acta Psychiatr Scand 2008; 117:465-73. [PMID: 18331575 DOI: 10.1111/j.1600-0447.2008.01173.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The present study concerns the objective and quantitative measurement of checking activity, which represents the most frequently observed compulsions in obsessive-compulsive disorder (OCD). To address this issue, we developed an instrumental task producing repetitive checking in OCD subjects. METHOD Fifty OCD subjects and 50 normal volunteers (NV) were administered a delayed matching-to-sample task that offered the unrestricted opportunity to verify the choice made. Response accuracy, number of verifications, and response time for choice taken to reflect the degree of uncertainty and doubt were recorded over 50 consecutive trials. RESULTS Despite similar levels of performance, patients with OCD demonstrated a greater number of verifications and a longer response time for choice before checking than NV. Such behavioral patterns were more pronounced in OCD subjects currently experiencing checking compulsions. CONCLUSION The present task might be of special relevance for the quantitative assessment of checking behaviors and for determining relationships with cognitive processes.
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Morissette P, Hreiche R, Mallet L, Vo D, Knaus EE, Turgeon J. Olanzapine prolongs cardiac repolarization by blocking the rapid component of the delayed rectifier potassium current. J Psychopharmacol 2007; 21:735-41. [PMID: 17092964 DOI: 10.1177/0269881106072669] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Prolongation of the QT interval has been observed during treatment with olanzapine, a thienobenzodiazepine antipsychotic agent. Our objectives were 1) to characterize the effects of olanzapine on cardiac repolarization and 2) to evaluate effects of olanzapine on the major time-dependent outward potassium current involved in cardiac repolarization, namely I(Kr) (I(Kr): rapid component of the delayed rectifier potassium current).Isolated, buffer-perfused guinea pig hearts (n = 40) were stimulated at different pacing cycle lengths (150-250 msec) and exposed to olanzapine at concentrations ranging from 1 to 100 microM. Olanzapine increased monophasic action potential duration measured at 90% repolarization (MAPD90) in a concentration-dependent manner by 6.7 +/- 0.7 msec at 3 microM but by 26.0 +/- 4.3 msec at 100 microM (250 msec cycle length). Increase in MAPD(90) was also reverse frequency dependent; 30 microM olanzapine increased MAPD90 by 28.0 +/- 6.2 msec at a pacing cycle length of 250 msec but by only 18.9 +/- 2.2 msec at a pacing cycle length of 150 msec. Experiments in HERG-transfected (HERG: human ether-a-gogo-related gene) HEK293 cells (n = 36) demonstrated concentration-dependent block of the rapid component (I(Kr)) of the delayed rectifier potassium current: tail current was decreased 50% at olanzapine 3.8 microM. Olanzapine possesses direct cardiac electrophysiological effects similar to those of class III anti-arrhythmic drugs. These effects were observed at concentrations that can be measured in patients under conditions of impaired drug elimination such as renal or hepatic insufficiency, during co-administration of other CYP1A2 substrates/inhibitors or after drug overdose. These results offer a new potential explanation for QT prolonging effects observed during olanzapine treatment in patients.
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Montefiore D, Mallet L, Lévy R, Allilaire JF, Pélissolo A. [Pseudo-dementia conversion and post-traumatic stress disorder]. Encephale 2007; 33:352-5. [PMID: 17675934 DOI: 10.1016/s0013-7006(07)92050-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Post-traumatic stress disorder (PTSD) is often associated with other psychiatric syndromes. However, studies exploring conversion and PTSD comorbidity are scarce. CASE-REPORT This paper reports the case of a 45 year-old patient without medical or psychiatric history. In 2003, he suddenly started suffering from amnesia and symptoms of delirium: he was at his office with a cup of coffee but he did not remember why. Aphasia, trembling, behavioural disorders appeared over the next hours and days. Numerous neurological examinations and laboratory tests (including cerebral imagery) were performed without evidence of any physical disease. Three psychiatric examinations were also negative, even if a possible psychogenic origin was hypothesized. Neurological or psychiatric diagnoses were discussed but without definitive conclusion. One year later, the symptoms were unchanged until the patient watched a movie ("Mystic River") that described the story of a man with sexual abuse in childhood. He suddenly remembered that he lived the same experience when he was 8 years old. At the end of the movie, his wife surprisingly noticed that he was walking and speaking normally. All the neurological symptoms disappeared. Unfortunately, symptoms of a severe PTSD appeared, as well as a major depressive disorder. The patient and his parents remembered that he had been more irritable, depressed and anxious at school and during the night, between 8 and 13 years of age, with a possible PTSD during this period. He always refused to talk with his parents about the traumatic event. When he was 13, the family moved house, the patient seemed to forget everything and the symptoms disappeared. About thirty years later, the symptoms were similar with the reexperien of the traumatic event through unwanted recollections, distressing images, nightmares, or flashbacks. He had also symptoms of hyperarousal with physiological manifestations, such as irritability, insomnia, impaired concentration, hypervigilance, and increased startle reactions. Hospitalisation became necessary because of a severe depressive disorder with suicidal ideation and suicidal attempt by hanging. After two failed treatments with SSRI antidepressants, the administration of clomipramine (200 mg/d) and a combined therapy with Eyes Movement Desensitization and Reprocessing (EMDR) led to a significant improvement of PTSD and depression symptoms. DISCUSSION Even if PTSD and conversion may share common dissociative mechanisms, the links between both syndromes have not yet been sufficiently explored. Our clinical case raises specifically the question of the initial manifestations of pseudo-dementia (why this type of symptoms, and why at this particular moment of his life, without any targeting events). Moreover, the case of this patient is particularly interesting because of the very long amnesia period between the traumatic event and the onset of PTSD. CONCLUSION The different phases of this case warrant more precise exploration of the links between PTSD and conversion, with clinical, epidemiological and cerebral imagery perspectives.
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