Une intervention systémique brève de couple: le cas de Virginie et Paul

L'analyse de la thérapie de couple de Virginie et Paul vise à illustrer la spécificité de l'intervention Systémique Brève, un traitement manualise réalisé dans un cadre temporel limité, et à examiner son efficacité. L'évaluation chez chaque conjoint de la symptomatologie individuelle, de la satisfaction conjugale et de l'alliance thérapeutique grâce à des questionnaires transmis avant, après et trois mois après la fin de l'intervention fournit une mesure indépendante du processus thérapeutique. Les résultats montrent que les étapes clés du processus thérapeutique identifiées par les thérapeutes sont associées à des variations de l'alliance thérapeutique chez les patients. L'évolution distincte de chaque partenaire est discutée, en s'appuyant notamment sur les réactions des conjoints à leurs données de recherche.

ConnectomeViewer - Multi-Modal Multi-Level Network Visualization and Analysis.

Introduction: The field of Connectomic research is growing rapidly, resulting from methodological advances in structural neuroimaging on many spatial scales. Especially progress in Diffusion MRI data acquisition and processing made available macroscopic structural connectivity maps in vivo through Connectome Mapping Pipelines (Hagmann et al, 2008) into so-called Connectomes (Hagmann 2005, Sporns et al, 2005). They exhibit both spatial and topological information that constrain functional imaging studies and are relevant in their interpretation. The need for a special-purpose software tool for both clinical researchers and neuroscientists to support investigations of such connectome data has grown. Methods: We developed the ConnectomeViewer, a powerful, extensible software tool for visualization and analysis in connectomic research. It uses the novel defined container-like Connectome File Format, specifying networks (GraphML), surfaces (Gifti), volumes (Nifti), track data (TrackVis) and metadata. Usage of Python as programming language allows it to by cross-platform and have access to a multitude of scientific libraries. Results: Using a flexible plugin architecture, it is possible to enhance functionality for specific purposes easily. Following features are already implemented: * Ready usage of libraries, e.g. for complex network analysis (NetworkX) and data plotting (Matplotlib). More brain connectivity measures will be implemented in a future release (Rubinov et al, 2009). * 3D View of networks with node positioning based on corresponding ROI surface patch. Other layouts possible. * Picking functionality to select nodes, select edges, get more node information (ConnectomeWiki), toggle surface representations * Interactive thresholding and modality selection of edge properties using filters * Arbitrary metadata can be stored for networks, thereby allowing e.g. group-based analysis or meta-analysis. * Python Shell for scripting. Application data is exposed and can be modified or used for further post-processing. * Visualization pipelines using filters and modules can be composed with Mayavi (Ramachandran et al, 2008). * Interface to TrackVis to visualize track data. Selected nodes are converted to ROIs for fiber filtering The Connectome Mapping Pipeline (Hagmann et al, 2008) processed 20 healthy subjects into an average Connectome dataset. The Figures show the ConnectomeViewer user interface using this dataset. Connections are shown that occur in all 20 subjects. The dataset is freely available from the homepage (connectomeviewer.org). Conclusions: The ConnectomeViewer is a cross-platform, open-source software tool that provides extensive visualization and analysis capabilities for connectomic research. It has a modular architecture, integrates relevant datatypes and is completely scriptable. Visit www.connectomics.org to get involved as user or developer.

Vulnerabilität und psychische Erkrankung

Vulnerability and psychic illness Based on a sample of 1701 college and university students from four different sites in Switzerland, the U.S., and Argentina, this study investigated the interrelationships between insufficient coping skills under chronic stress and impaired general health. We sought to develop standardised means for "early" identification of students at risk of mental health problems, as these students may benefit from "early" interventions before psychiatric symptoms develop and reach clinically relevant thresholds. All students completed two self-report questionnaires: the Coping Strategies Inventory "COPE" and the Zurich Health Questionnaire "ZHQ", with the latter assessing "regular exercises", "consumption behavior", "impaired physical health", "psychosomatic disturbances", and "impaired mental health". This data was subjected to structure analyses based on neural network approaches, using the different study sites' data subsets as independent "learning" and "test" samples. We found two highly stable COPE scales that quantified basic coping behaviour in terms of "activity-passivity" and "defeatism-resilience". The excellent reproducibility across study sites suggested that the new scales characterise socioculturally independent personality traits. Correlation analyses for external validation revealed a close relationship between high scores on the defeatism scale and impaired physical and mental health, hence underlining the scales' clinical relevance. Our results suggested in particular: (1.) the proposed method to be a powerful screening tool for early detection and prevention of psychiatric disorders; (2.) physical activity like regular exercises to play a critical role not only in preventing health problems but also in contributing to early intervention programs.

Brief alcohol intervention and alcohol assessment do not influence alcohol use in injured patients treated in the emergency department: a randomized controlled clinical trial.

AIMS: To evaluate the effectiveness of brief alcohol intervention (BAI) in reducing alcohol use among hazardous drinkers treated in the emergency department (ED) after an injury; in addition it tests whether assessment of alcohol use without BAI is sufficient to reduce hazardous drinking. DESIGN: Randomized controlled clinical trial with 12-month follow-up conducted between January 2003 and June 2005. SETTING: Urban academic emergency department (ED) of the Lausanne University Hospital, Lausanne, Switzerland. PARTICIPANTS: A total of 5136 consecutive patients attending ED after an injury completed a seven-item general and a three-item alcohol screen and 1472 (28.7%) were positive for hazardous drinking according to the National Institute on Alcohol Abuse and Addiction definition; of these 987 (67.1%) were randomized into a BAI group (n = 310) or a control group with screening and assessment (n = 342) or a control group with screening only (n = 335) and then a total of 770 patients (78.0%) completed the 12-month follow-up procedures. INTERVENTION: A single 10-15-minute session of standardized BAI conducted by a trained research assistant. MEASUREMENTS: Percentage of participants who have changed to low-risk drinking at follow-up. FINDINGS: Data obtained at 12 months indicated that similar proportions were low-risk drinkers in BAI versus control groups with and without assessment (35.6%, 34.0%, 37.0%, respectively, P = 0.71). Data also indicated similar reductions in drinking frequency, quantity, binge drinking frequency and Alcohol Use Disorders Identification Test (AUDIT) scores across groups. All groups reported similar numbers of days hospitalized and numbers of medical consults in the last 12 months. A model including age groups, gender, AUDIT and injury severity scores indicated that BAI had no influence on the main alcohol use outcome. CONCLUSIONS: This study provides the evidence that a 10-15-minute BAI does not decrease alcohol use and health resource utilization in hazardous drinkers treated in the ED, and demonstrates that commonly found decreases in hazardous alcohol use in control groups cannot be attributed to the baseline alcohol assessment.

Hypocretin (orexin) biology and the pathophysiology of narcolepsy with cataplexy.

The discovery of hypocretins (orexins) and their causal implication in narcolepsy is the most important advance in sleep research and sleep medicine since the discovery of rapid eye movement sleep. Narcolepsy with cataplexy is caused by hypocretin deficiency owing to destruction of most of the hypocretin-producing neurons in the hypothalamus. Ablation of hypocretin or hypocretin receptors also leads to narcolepsy phenotypes in animal models. Although the exact mechanism of hypocretin deficiency is unknown, evidence from the past 20 years strongly favours an immune-mediated or autoimmune attack, targeting specifically hypocretin neurons in genetically predisposed individuals. These neurons form an extensive network of projections throughout the brain and show activity linked to motivational behaviours. The hypothesis that a targeted immune-mediated or autoimmune attack causes the specific degeneration of hypocretin neurons arose mainly through the discovery of genetic associations, first with the HLA-DQB1*06:02 allele and then with the T-cell receptor α locus. Guided by these genetic findings and now awaiting experimental testing are models of the possible immune mechanisms by which a specific and localised brain cell population could become targeted by T-cell subsets. Great hopes for the identification of new targets for therapeutic intervention in narcolepsy also reside in the development of patient-derived induced pluripotent stem cell systems.

Brief intervention on tobacco use among young adults - do they benefit from booster sessions?

Introduction Le tabac représente un risque majeur pour la santé de chacun, avec un lien direct établi entre le risque de développer des pathologies et la durée de sa consommation. Les jeunes sont donc des cibles primordiales pour la prévention du tabac ; les quelques recherches effectuées dans ce groupe d'âge ne sont pas encore parvenues à identifier des moyens efficaces afin d'éviter le début de la cigarette ou d'arrêter une consommation préexistante. Les buts de cette étude sont d'identifier les effets de l'intervention motivationnelle brève et de définir la nécessité d'un booster dans cette catégorie particulière de la population que sont les jeunes hommes de 19 ans. Méthodes Cette étude a été menée d'octobre 2008 à septembre 2009 au centre de recrutement de Lausanne, Vaud. Les individus étaient invités à participer à une intervention motivationnelle brève ciblant simultanément le tabac, l'alcool et le cannabis, sans screening préalable. Les 823 volontaires ont été assignés de manière randomisée entre les groupes cas et témoin, avec dans le groupe intervention une nouvelle randomisation attribuant un booster téléphonique trois mois plus tard à certains cas. Ce travail se fixe uniquement sur les résultats concernant le tabac, six mois après l'intervention. Les effets (statut de fumeur et de fumeur quotidien, nombre de cigarettes fumées en moyenne, dépendance à la cigarette selon les critères de Fagerström) étaient analysés sur la base d'un questionnaire écrit au baseline, puis d'un contact téléphonique au follow-up à six mois ; ils ont été analysés séparément pour différents groupes : l'entier des participants, les fumeurs et les fumeurs quotidiens. Résultats Les interventions motivationnelles brèves n'ont aucun effet significatif sur la consommation de tabac. Elles ont cependant une tendance bénéfique sur le fait d'être de fumeur et fumeur quotidien, sur le nombre de cigarettes consommées en moyenne et la dépendance selon Fagerström chez tous les participants, ainsi que dans les sous-groupes de fumeurs et fumeurs quotidiens. Les résultats des boosters ne sont pas significatifs et entraînent des effets mitigés selon les analyses effectuées et les groupes observés. Discussion Les interventions motivationnelles brèves n'ont pas d'effet significatif mais semblent avoir une tendance favorable à une diminution de la consommation de tabac. Les boosters ne paraissent pas avoir d'impact bénéfique mais ces conclusions sont à pondérer avec le fait qu'aucun des résultats obtenus n'est significatif. Des recherches plus systématiques sont nécessaires pour mieux comprendre ces résultats décevants : en ce qui concernent les interventions, les causes à envisager sont le fait d'utiliser des volontaires sans screening préalable, de cibler l'intervention sur de multiples substances pendant un temps relativement court ou encore la difficulté de cibler les jeunes vis-à-vis des risques liés à la cigarette ; quant aux boosters, une augmentation de fréquence ou de durée pourrait représenter une alternative, afin de rendre cette session complémentaire efficace.

Online teaching of inflammatory skin pathology by a French-speaking International University Network

INTRODUCTION: Developments in technology, web-based teaching and whole slide imaging have broadened the teaching horizon in anatomic pathology. Creating online learning material including many types of media such as radiologic images, whole slides, videos, clinical and macroscopic photographs, is now accessible to most universities. Unfortunately, a major limiting factor to maintain and update the learning material is the amount of resources needed. In this perspective, a French-national university network was initiated in 2011 to build joint online teaching modules consisting of clinical cases and tests. The network has since expanded internationally to Québec, Switzerland and Ivory Coast. METHOD: One of the first steps of the project was to build a learning module on inflammatory skin pathology for interns and residents in pathology and dermatology. A pathology resident from Québec spent 6 weeks in France and Switzerland to develop the contents and build the module on an e-learning Moodle platform under the supervision of two dermatopathologists. The learning module contains text, interactive clinical cases, tests with feedback, virtual slides, images and clinical photographs. For that module, the virtual slides are decentralized in 2 universities (Bordeaux and Paris 7). Each university is responsible of its own slide scanning, image storage and online display with virtual slide viewers. RESULTS: The module on inflammatory skin pathology includes more than 50 web pages with French original content, tests and clinical cases, links to over 45 virtual images and more than 50 microscopic and clinical photographs. The whole learning module is being revised by four dermatopathologists and two senior pathologists. It will be accessible to interns and residents in the spring of 2014. The experience and knowledge gained from that work will be transferred to the next international resident whose work will be aimed at creating lung and breast pathology learning modules. CONCLUSION: The challenges of sustaining a project of this scope are numerous. The technical aspect of whole-slide imaging and storage needs to be developed by each university or group. The content needs to be regularly updated and its accuracy reviewed by experts in each individual domain. The learning modules also need to be promoted within the academic community to ensure maximal benefit for trainees. A collateral benefit of the project was the establishment of international partnerships between French-speaking universities and pathologists with the common goal of promoting pathology education through the use of multi-media technology including whole slide imaging.

Evaluation d'un programme d'intervention interdisciplinaire d'adhésion thérapeutique chez les patients VIH-positifs. Travail de thèse

Ce travail de recherche évalue dans quelle mesure le pharmacien, en collaboration avec les autres professionnels de soins, peut soutenir le patient VIH-positif dans sa prise médicamenteuse en associant de façon originale l'entretien motivationnel et les piluliers électroniques. Les résultats montrent que l'adhésion thérapeutique peut être maintenue à un niveau élevé même dans un groupe de patients à risque de non-adhésion. [Auteurs]