Publications by authors named "Verdellen C"

Tics can have a serious impact on the quality of life of children and their families. Behavioural therapy is an evidence-based first line treatment for tic disorders. This randomised controlled trial studied the efficacy of a brief, condensed group-based programme for children with tics (Dutch Trial Registry NL8052, 27 September 2019).

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Background: Exposure and response prevention (ERP) has been shown to be an effective treatment for Tourette syndrome (TS) and chronic tic disorders (CTD). ERP is based on voluntary tic suppression in combination with prolonged exposure to premonitory urges preceding tics. A prevailing hypothesis of the working mechanism underlying ERP in tics is habituation to the premonitory urges as a result of prolonged exposure.

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Co-occurring psychiatric conditions are very common in tic disorders and Tourette syndrome. These additional symptoms are often detrimental to quality of life and may impact upon the implementation and efficacy of evidence-based behavioural therapies (BT) for tics. Combining a review of the available literature, relevant theory, and expert clinical practice, we present a guideline for implementing behavioural and psychosocial interventions when common comorbidities are present.

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Introduction: This paper outlines the study protocol for the Dutch Tackle Your Tics study in youth with tic disorders. Tourette syndrome and chronic tic disorders are prevalent neurodevelopmental disorders, placing considerable burden on youth and their families. Behavioural treatment is the first-line, evidence-based intervention for tic disorders, but tic reduction and availability remain relatively low.

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Article Synopsis
  • In 2011, the European Society for the Study of Tourette Syndrome released the first guidelines for treating Tourette Syndrome, which have been updated to reflect new research and expert survey results.
  • The updated guidelines emphasize the importance of psychoeducation and behavioral therapies for enhancing patient autonomy, but recognize that pharmacological treatment is often necessary for many patients.
  • Aripiprazole is recommended as the first-choice medication due to its better side-effect profile, with other possible treatments like tiapride, risperidone, and clonidine considered based on individual patient needs and conditions.
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Part II of the European clinical guidelines for Tourette syndrome and other tic disorders (ECAP journal, 2011) provides updated information and recommendations for psychological interventions for individuals with tic disorders, created by a working group of the European Society for the Study of Tourette Syndrome (ESSTS). A systematic literature search was conducted to obtain original studies of psychological interventions for tic disorders, published since the initial European clinical guidelines were issued. Relevant studies were identified using computerized searches of the MEDLINE and PsycINFO databases for the years 2011-2019 and a manual search for the years 2019-2021.

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In 2011 a working group of the European Society for the Study of Tourette syndrome (ESSTS) developed the first European Guidelines for Tourette syndrome (TS) published in the ECAP journal. After a decade ESSTS now presents updated guidelines, divided into four sections: Part I: assessment, Part II: psychological interventions, Part III: pharmacological treatment and Part IV: deep brain stimulation (DBS). In this paper, we summarise new developments described in the guidelines with respect to assessment and treatment of tics.

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Tourette syndrome (TS) and other chronic tic disorders (CTD) are prevalent neurodevelopmental disorders, which can have a huge burden on families and society. Behavioral treatment is a first-line intervention for tic disorders. Despite demonstrated efficacy, tic reduction and utilization rates of behavioral treatment remain relatively low.

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Introduction: Tourette Syndrome (TS) is a childhood onset disorder characterized by vocal and motor tics and often remits spontaneously during adolescence. For treatment refractory patients, Deep Brain Stimulation (DBS) may be considered.

Methods And Results: We discuss ethical problems encountered in two adolescent TS patients treated with DBS and systematically review the literature on the topic.

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Article Synopsis
  • Exposure and response prevention is a key treatment method for tic disorders, showing significant reduction in tics after longer sessions (12 sessions of 2 hours).
  • An open trial tested whether shorter 1-hour exposure sessions could be as effective for patients with Tourette syndrome or chronic tic disorder, comparing results with previous findings from longer sessions.
  • The findings indicate that shorter sessions are just as effective, suggesting they could be a more efficient option for treatment, although further research is needed to explore how these behavioral treatments work.
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Behaviour therapy has been shown to be an effective strategy in treating tics; both habit reversal (HR) and exposure and response prevention (ER) are recommended as first-line interventions. This review provides an overview of the history, theoretical concepts and evidence at present for HR and ER. In addition, treatment manuals for HR and ER are described.

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This clinical guideline provides recommendations for the behavioural and psychosocial interventions (BPI) of children and adolescents with tic disorders prepared by a working group of the European Society for the Study of Tourette Syndrome (ESSTS). A systematic literature search was conducted to obtain an update on the efficacy of BPI for tics. Relevant studies were identified using computerised searches of the Medline and PsycINFO databases and the Cochrane Library for the years 1950-2010.

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Exposure to premonitory sensations and response prevention of tics (ER) has been shown to be a promising new treatment for Tourette's syndrome (TS). The present study tested the hypothesis that habituation to unpleasant premonitory sensations associated with the tic is an underlying mechanism of change in ER. Patients rated the severity of sensations and urges at 15-minute intervals during ten 2-hour ER sessions.

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Exposure and response prevention (ER), a behavioral treatment program consisting of exposure to premonitory sensory experiences during prolonged tic suppression, was shown to be a promising new treatment for tics in Tourette's syndrome (TS). In this study, the commonly reported paradoxical increase in tic frequency following voluntary tic suppression, i.e.

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The intentional nature of tics provides the opportunity to apply behavioural interventions aimed at tic reduction through interruption of stimulus-response sequences. The aim of this study has been to evaluate the effect of exposure and response prevention (ER) versus habit reversal (HR) in 43 Tourette's syndrome (TS) patients. The three outcome measures were: the Yale Global Tic Severity Scale (YGTSS), 15-min tic frequency registrations monitored at the institute and 15-min home tic frequency registrations.

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