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Publications (60)38.6 Total impact

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    ABSTRACT: Abusive head trauma (AHT) is still too common, and probably underestimated. It is the leading cause of death from child abuse. Crying is thought to contribute to the act of shaking. Objectives of this study were to (a) assess parents' knowledge about infant crying, their ability to manage crying, and their knowledge about AHT; and (b) assess the feasibility and the impact of a simple educational intervention about crying and AHT with parents shortly after their child's birth. A short questionnaire was completed orally by the parents of 190 consecutive newborns in a maternity hospital at day 2 of life. Then, during the routine examination of the child, the pediatrician gave parents a short talk about infant crying and AHT, and a pamphlet. Finally, parents were contacted by phone at 6 weeks for the post-intervention questionnaire assessing their knowledge about crying and AHT. Among 202 consecutive births, parents of 190 children were included (266 parents; 70% mothers) over a 1-month period and answered the pre-intervention questionnaire. The intervention was feasible and easy to provide. Twenty-seven percent of mothers and 36% of fathers had never heard of AHT. At 6 weeks, 183 parents (68% of the sample; 80% mothers) answered the post-intervention questionnaire. Parents' knowledge improved significantly post-intervention. Parents found the intervention acceptable and useful. Health care professionals such as pediatricians or nurses could easily provide this brief talk to all parents during systematic newborn examination.
    Child Abuse & Neglect 07/2014; · 2.47 Impact Factor
  • K. Lind, A. Laurent-Vannier, H. Toure, D.-G. Brugel, M. Chevignard
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    ABSTRACT: The Shaken Baby Syndrome (SBS) is a severe inflicted brain injury due to an adult violently shaking an infant. Diagnostic guidelines have been recently published by the “Haute Autorité de santé”. The mortality rate after SBS is 21.6 % and the long-term outcome is good for only 8 to 36 % patients followed over more than 5 years. The aim of this article is to describe sequelae after a SBS, their mechanisms, prognostic factors and recommendations for a better long-term care of the patients.
    La Revue Sage-Femme 04/2013; 20(4):446–448.
  • K Lind, A Laurent-Vannier, H Toure, D-G Brugel, M Chevignard
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    ABSTRACT: The Shaken Baby Syndrome (SBS) is a severe inflicted brain injury due to an adult violently shaking an infant. Diagnostic guidelines have been recently published by the "Haute Autorité de santé". The mortality rate after SBS is 21.6 % and the long-term outcome is good for only 8 to 36 % patients followed over more than 5 years. The aim of this article is to describe sequelae after a SBS, their mechanisms, prognostic factors and recommendations for a better long-term care of the patients.
    Archives de Pédiatrie 03/2013; · 0.36 Impact Factor
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    ABSTRACT: The aim of the study was to assess weight changes after traumatic brain injury (TBI) in children and the factors influencing them. We conducted a longitudinal observational study of children with TBI of mixed severity who were consecutively admitted to one rehabilitation department (39 children; 23 males, 16 females; median age 8y 7mo; 25th to 75th centiles 3y 7mo-11y 6mo). Weight and height before TBI were obtained from the children's records and were measured monthly for 1 year after TBI. Body mass index (BMI) and BMI z-scores were calculated, and pre-TBI values were compared with the final values using paired tests. Linear mixed-effect interaction models were used to assess the effect of various factors on z-score evolution. Z-score curves revealed early weight loss followed by a rapid increase in weight. The mean BMI gain over the period under study was 0.9 kg/m² (p < 0.001) and the mean z-score gain was 0.4 (p = 0.006). Six children had become overweight by the time of final assessment. Factors associated with a greater rate of increase in the post-TBI z-score were mobility restriction, male sex, and older age. Global pre- to post-TBI weight gain was significantly higher in males (z-score 0.7). Pituitary hormonal testing was available for 17 children at 3 months and for 27 at 1 year. Growth hormone deficiency was detected in one child. Weight gain of children during the first year after TBI was rapid and excessive. Male sex was a risk factor for excessive weight gain.
    Developmental Medicine & Child Neurology 04/2012; 54(7):624-8. · 2.68 Impact Factor
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    ABSTRACT: Purpose: To assess the impact of emergency management on mortality and morbidity of acute rupture of cerebral arteriovenous malformations resulting in deep coma in children, and the factors predicting outcome. Methods: Retrospective chart review of 20 children with a Glasgow Coma Scale ≤ 8 with acute hemorrhagic stroke from a cerebral arteriovenous malformation rupture was conducted. Protocol included: early resuscitation with tracheal intubation and ventilation after induction of anesthesia with sufentanil, and benzodiazepine, and mannitol 20% or hypertonic saline 7.5% infusion for life-threatening brain herniation. Radiological exploration was limited to contrast-enhanced CT scan preceding immediate surgical decompression. Postoperatively, children were deeply sedated and intracranial pressure monitoring allowed titration with osmotherapy, vasopressors, hyperventilation or barbiturate coma to control cerebral perfusion pressure. Analysis used stratification of the type of hemorrhage (supra or infra tentorial), location (intraparenchymal and subarachnoid, intraparenchymal and intraventricular or intraventricular alone) and relationship between presentation, evolution with resuscitation, type of cerebral lesion, and outcome. Results: Patients had a severe initial presentation (median Glasgow Coma Scale five), eight had unilateral and eight bilateral third nerve palsy. Compressive hematoma in supratentorial localisation represented 75% of the cases. Global mortality was 40%. Persistence of mydriasis after resuscitation increased mortality to 75%. Massive intraventricular flooding was associated with increased mortality. Good functional outcome was achieved in survivors. Conclusion: Acute rupture of an AVM can result in rapidly progressing coma. Emergency management with early resuscitation, minimal radiological exploration before rapid surgical decompression results in a mortality rate of 40%, but a good functional outcome can be expected in the survivors. Objectif: Évaluer l’effet et le pronostic d’une intervention d’urgence sur la mortalité et la morbidité d’une rupture imprévisible de malformations artérioveineuses cérébrales qui ont conduit à un coma profond chez des enfants. Méthode: Un examen rétrospectif des dossiers de 20 enfants, cotés ≤ 8 à l’échelle de Glasgow, qui ont subi un accident hémorragique aigu causé par la rupture de malformations artérioveineuses cérébrales, a été réalisé. Le protocole comportait: une réanimation précoce, une intubation endotrachéale et une ventilation après l’induction de l’anesthésie avec du sufentanil, du mannitol à 20 % ou une perfusion salée hypertonique à 7,5 % pour traiter l’hernie cérébrale grave. L’exploration radiologique s’est limitée à la scanographie de prise de contraste juste avant la décompression chirurgicale. Après l’opération, les enfants ont reçu une forte sédation. Le monitorage de la pression intracrânienne a permis le titrage de l’osmothérapie, des vasopresseurs, de l’hyperventilation ou du coma barbiturique pour contrôler la pression de perfusion. L’analyse a porté sur la stratification du type d’hémorragie (sus-tentorielle ou sous-tentorielle), la localisation (intraparenchymateuse et sous-arachnoïdienne, intraparenchy-mateuse et intraventriculaire ou intraventriculaire seulement) et la relation entre la condition initiale, l’évolution de la réanimation, le type de lésion cérébrale et les résultats. Résultats: Les patients présentaient une condition initiale sévère (cinq à l’échelle de Glasgow), huit avaient une paralysie unilatérale du troisième nerf et huit, bilatérale. L’hématome compressif sus-tentoriel représentait 75 % des cas. La mortalité globale a été de 40 %. La persistance de mydriase après la réanimation a fait augmenter la mortalité à 75 %. L’épanchement intraventriculaire massif a été associé à un accroissement de la mortalité. Une bonne évolution fonctionnelle a été possible chez les survivants. Conclusion: La rupture aiguë de MAV peut rapidement évoluer vers le coma. Une intervention d’urgence par une réanimation précoce et une exploration radiologique minimale avant la décompression chirurgicale rapide ont
    Canadian Journal of Anaesthesia 04/2012; 47(8):758-766. · 2.13 Impact Factor
  • A Laurent-Vannier
    Annals of physical and rehabilitation medicine 11/2011; 54(9-10):531-2.
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    Annals of physical and rehabilitation medicine 11/2011; 54(9-10):600-25.
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    Annals of physical and rehabilitation medicine 11/2011; 54(9-10):533-99.
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    ABSTRACT: The purpose of this study was to gain insight into the social (pragmatic) aspects of language use by French-speaking individuals with frontal lesions following a severe traumatic brain injury. Eleven participants with traumatic brain injury performed tasks in three areas of communication: production (interview situation), comprehension (direct requests, conventional indirect requests, and hints), and metapragmatic knowledge. The results of the patients pointed out some strengths (turn-taking in production, and request comprehension, including hints and the speaker's intention) and some weaknesses (topic maintenance in production and metapragmatic knowledge). The patients' good comprehension of requests and their difficulty expressing metapragmatic knowledge suggest that they differ from controls in how they "explain the world": their knowledge of the event sequence was not based on verbally expressible knowledge about the relationship between the structural characteristics of a request utterance and those of its social production context. The pragmatic skills of persons with traumatic brain injury seem to vary across tasks: these individuals have specific strengths and weaknesses in different domains. In addition, marked interindividual differences were noted among the patients: three of them had only one weak point, topic maintenance. These interindividual differences were not systematically linked to performance on executive function tests, but lesion unilaterality (right or left) seems to help preserve patients' pragmatic and metapragmatic skills. The discussion stresses the need to take each patient's strengths and weaknesses into account in designing remediation programs. Learning outcomes: As a result of this activity, the reader will be able to explain the social/pragmatic aspects of language in typical and atypical participants with TBI. As a result of this activity, the reader will be able to identify social/pragmatic weaknesses and strengths.
    Journal of Communication Disorders 03/2011; 44(3):359-78. · 1.55 Impact Factor
  • H. Simonnet, M. Chevignard, A. Laurent-Vannier
    Annals of Physical and Rehabilitation Medicine. 01/2011; 54.
  • H. Simonnet, M. Chevignard, A. Laurent-Vannier
    Annals of Physical and Rehabilitation Medicine. 01/2011; 54.
  • Acta Neurochirurgica 09/2010; · 1.55 Impact Factor
  • A Laurent-Vannier, E Briand-Huchet, J Cook
    Archives de Pédiatrie 06/2010; 17(6):976-7. · 0.36 Impact Factor
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    ABSTRACT: Hyperglycemia in the acute phase after trauma could adversely affect outcome in children with severe traumatic brain injury (TBI). The goal of this study was to identify the relationship between acute spontaneous hyperglycemia and outcome in children with severe TBI at hospital discharge and 6 months later. A retrospective analysis of blood glucose levels in children with severe TBI at a Pediatric level I Trauma Center, between January 2000 and December 2005. Hyperglycemia was considered for a cut-off value of 11.1 mmol/l (200 mg/dl). Outcome was measured with Glasgow Outcome Scale (GOS) at hospital discharge and at 6 months. A multiple logistic regression analysis, the Student's t test and the chi (2) test were done. Hyperglycemia was noted within the first 48 h in 34% of the patients. Mortality (70% vs 14%, p < 10(-5)) was more frequent in hyperglycemic children and bad outcome upon hospital discharge in those who remained hyperglycemic during the first 48 h of hospitalization. GOS after 6 months demonstrated that those normoglycemic children had a better outcome (95%) than those who developed hyperglycemia during the first 48 h (83%, p = 0.01) after trauma. Hyperglycemia could be considered as a marker of brain injury and when present upon admission, could reflect extensive brain damage with frequently associated mortality and bad outcome. The inability to maintain normal blood glucose levels during the first 48 h could be a predictive factor of bad outcome. Avoiding hyperglycemia in the initial phase could be a major issue in children with severe TBI.
    Acta Neurochirurgica 05/2010; 152(9):1559-65. · 1.55 Impact Factor
  • A. Laurent-Vannier, E. Briand-Huchet, J. Cook
    Archives De Pediatrie - ARCHIVES PEDIATRIE. 01/2010; 17(6):976-977.
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    M Chevignard, H Toure, D G Brugel, J Poirier, A Laurent-Vannier
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    ABSTRACT: Acquired brain injury (ABI) is a leading cause of death and lifelong acquired disability in children and remains a significant public health issue. Deficits may only become fully apparent when developmental demands increase and once cognitive processes are expected to be fully developed. It is therefore necessary to provide organized long-term follow-up for children post ABI. Despite these recommendations, it has been shown that only a small proportion of children received specialized rehabilitation and adequate follow-up after ABI. The aims are: (i) to describe a comprehensive model of care devoted to children with acquired brain injuries; and (ii) to provide descriptive data analysing the characteristics of children followed up, the type/amount of services provided and general outcomes. PROGRAMME DESCRIPTION: The programme features an in- and outpatient rehabilitation facility, where multidisciplinary rehabilitation and specialized schooling are provided. The ultimate goal of the programme is to promote each child's successful reintegration in school and in the community. Adequate preparation of discharge is essential, long-term follow-up is organized, and an outreach programme has been developed to deal with the complex delayed psychosocial issues. Overall outcome, as measured by the Glasgow Outcome Scale, improved dramatically between admission (3.3; SD = 0.45) and discharge (2.15; SD = 0.74). Most of the children were discharged home with an adequate personalized plan for ongoing rehabilitation and school adaptations. Analysis of the outreach programme underlines the more challenging issues arising in late adolescence-early adulthood. Given the specificities of childhood ABI, long-term specific care must be organized and co-ordinated, regardless of injury severity.
    Child Care Health and Development 06/2009; 36(1):31-43. · 1.70 Impact Factor
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    ABSTRACT: To investigate the effect of a combination of botulinum toxin A (BTX-A) and rehabilitation on spasticity, pain and motor functioning in children with acquired brain injury (ABI). All children and adolescents with ABI, aged 2-20 years, consecutively treated in the department over a 22-month period, were prospectively followed-up and clinically assessed pre- and post-treatment. They had spasticity and/or dystonia leading to impairment in activities of daily living, orthopaedic deformations and/or pain. Injections were performed using electro-stimulation. Doses of BTX-A (Botox) were administered using recent recommendations. Twenty-five children (mean age 6.3 years) participated in the study (51 injection sessions). All patients received BTX-A injections, followed with physical and/or occupational therapy. Significant improvement was achieved for spasticity reduction (p < 0.0001), command on antagonist muscles (p = 0.03 for the tibialis anterior) and goniometry assessment (p < 0.05). Pain relief was achieved in patients in a minimally responsive state. Functional goals were achieved, such as improving transfers or gait, grasping and releasing abilities, with significant transfer in activities of daily living (p < 0.0001). A combination of BTX-A injection with rehabilitation is an interesting option for treatment of muscle tone disorders in children with ABI.
    Developmental neurorehabilitation 06/2009; 12(3):128-38.
  • A Laurent-Vannier, H Toure, E Vieux, D G Brugel, M Chevignard
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    ABSTRACT: Studies of long-term outcome of the shaken baby syndrome (SBS) are scarce, but they usually indicate poor outcome. To describe long-term outcome of a child having sustained a SBS, to ascertain possible delayed sequelae and to discuss medicolegal issues. We report a single case study of a child having sustained a SBS, illustrating the initial clinical features, the neurological, cognitive and behavioural outcomes as well as her social integration. The child sustained diffuse brain injuries, responsible for spastic right hemiplegia leading to secondary orthopaedic consequences, as well as severe cognitive impairment, worsening over time: the developmental quotient measured at 15 months of age was 55 and worsened as age increased. At 6 years and 8 months, the child's IQ had fallen to 40. Behavioural disorders became apparent only after several months and precluded any social integration. The child eventually had to be placed in a specialised education centre at age 5. The SBS has a very poor outcome and major long-standing sequelae are frequent. Cognitive or behavioural sequelae can become apparent only after a long sign-free interval, due to increasing demands placed on the child during development. This case report confirms severity of early brain lesions and necessity for an extended follow-up by a multi-disciplinary team. From a medicolegal point of view, signaling the child to legal authorities allows protection of the child, but also conditions later compensation if sequelae compromise autonomy.
    Annals of physical and rehabilitation medicine 05/2009; 52(5):436-47.
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    ABSTRACT: Traumatic brain injury (TBI) often leads to executive functions (EF) deficits, resulting in severe longstanding disabilities in daily life activities. The sensitivity and ecological validity of neuropsychological tests have been questioned. The aim of this study was to pilot a novel open-ended naturalistic task and to compare it to other standardized assessments of EF in children post-TBI. Ten children aged 8-14, with moderate-to-severe TBI, and 18 matched controls participated in the study. The clinical group was assessed using cognitive tests and parent-based questionnaires of EF. An interactive ecological cooking task was designed. Analyses indicated mild-to-moderate executive deficits in the cognitive tests in approximately half of the TBI group. For the experimental cooking task, all quantitative and qualitative variables were significantly impaired for the TBI group compared to the control group and failure in the cooking task was associated with lower scores in cognitive tests of EF. The task was able to discriminate the TBI children from the control group. This pilot study highlights the role of naturalistic assessments, to complement standardized tests in assessing patients' dysexecutive impairments in complex activities of daily living post-childhood TBI.
    Developmental neurorehabilitation 01/2009; 12(2):76-91.
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    ABSTRACT: This chapter presents guidelines for the follow-up of children with brain tumors, whether benign or malignant, in their transition to adulthood. The consequences of their disease and its treatment overlap greatly. The complications and long-term follow-up are detailed based on the specialists involved.
    Neurochirurgie 10/2008; 54(5):623-41. · 0.32 Impact Factor