A guide to childhood motor stereotypies, tic disorders and the tourette spectrum for the primary care practitioner.
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ABSTRACT:
SUBMITTER: Mills S
PROVIDER: S-EPMC3992090 | biostudies-other | 2014 Jan
REPOSITORIES: biostudies-other
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A guide to childhood motor stereotypies, tic disorders and the tourette spectrum for the primary care practitioner.
Mills Sarah S Hedderly Tammy T
The Ulster medical journal 20140101 1
Movement disorders presenting in childhood are often complex and a heterogenous group of difficulties which can be a minefield for the primary care doctor. The recent activities of the European Society for the Study of Tourette Syndrome (ESSTS) have included publication of European clinical guidelines for Tourette syndrome and other Tic disorders aimed at guiding paediatricians and psychiatrists in managing these children. This paper aims to summarise the key points for primary care teams and im ...[more]
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Project description:Although the DSM-5 chronic motor tic disorder (CMTD) and Tourette syndrome (TS) are distinct diagnostic categories, there is no genetic or phenotypic evidence that supports this diagnostic categorization. The aim of this study was to compare patients with both diagnoses along a number of clinical characteristics to provide further diagnostic clarity. Our sample consisted of 1018 patients (including adult and child patients) suffering from chronic tic disorders. Tic severity was assessed via Shapiro Tourette-Syndrome Severity Scale (STSS). Lifetime prevalence of other comorbid conditions was assessed in a semi-structured clinical interview. The data were gained through retrospective chart analysis. The two groups did not differ significantly in any of the clinical or demographic variables. Patients only differed in tic severity, with CMTD patients (n = 40) having lower mean tic severity (STSS = 2.0 vs. 2.8; p < 0.001), prevalence of complex motor tics (27.5% vs. 55.9%; p < 0.01), copropraxia (0% vs. 16.2%; p < 0.01) and echopraxia (10.0% vs. 23.8%; p < 0.05), and a markedly lower comorbidity score (1.9 vs. 2.7; p < 0.001) as compared to TS patients (n = 978). Our results suggest that both disorders exist along a symptom severity continuum of which TS constitutes a more severe and CMTD a less severe form. We therefore suggest the introduction of the term "tic spectrum disorders", instead of using different diagnostic categories.
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Project description:Purpose of reviewTo summarize behavioral interventions for the treatment of primary tic disorders.Recent findingsAlthough tics were attributed to a disordered weak volition, the shift towards neurobiological models of tic disorders also transformed nonpharmacologic treatment practices. Current international guidelines recommend habit reversal training, comprehensive behavioral intervention, and exposure and response prevention as first-line therapies for tics. Appropriate patient selection, including age and presence of comorbidities, are salient clinical features that merit consideration. Evidence for further behavioral interventions is also presented.SummaryCurrently recommended behavioral interventions view tics as habitual responses that may be further strengthened through negative reinforcement. Although availability and costs related to these interventions may limit their effect, Internet-based and telehealth approaches may facilitate wide accessibility. Novel nonpharmacologic treatments that take different approaches, such as autonomic modulation or attention-based interventions, may also hold therapeutic promise.
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Project description:BackgroundPersistent motor or vocal tic disorder (PMVT) has been hypothesized to be a forme fruste of Tourette syndrome (TS). Although the primary diagnostic criterion for PMVT (presence of motor or vocal tics, but not both) is clear, less is known about its clinical presentation.ObjectiveThe goals of this study were to compare the prevalence and number of comorbid psychiatric disorders, tic severity, age at tic onset, and family history for TS and PMVT.MethodsWe analyzed data from two independent cohorts using generalized linear equations and confirmed our findings using meta-analyses, incorporating data from previously published literature.ResultsRates of obsessive-compulsive disorder (OCD) and attention deficit hyperactivity disorder (ADHD) were lower in PMVT than in TS in all analyses. Other psychiatric comorbidities occurred with similar frequencies in PMVT and TS in both cohorts, although meta-analyses suggested lower rates of most psychiatric disorders in PMVT compared with TS. ADHD and OCD increased the odds of comorbid mood, anxiety, substance use, and disruptive behaviors, and accounted for observed differences between PMVT and TS. Age of tic onset was approximately 2 years later, and tic severity was lower in PMVT than in TS. First-degree relatives had elevated rates of TS, PMVT, OCD, and ADHD compared with population prevalences, with rates of TS equal to or greater than PMVT rates.ConclusionsOur findings support the hypothesis that PMVT and TS occur along a clinical spectrum in which TS is a more severe and PMVT a less severe manifestation of a continuous neurodevelopmental tic spectrum disorder. © 2021 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Project description: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. Based on clinical consensus, psychoeducation is recommended as an initial intervention regardless of symptom severity. According to a systematic literature search, most evidence was found for Habit Reversal Training (HRT), primarily the expanded package Comprehensive Behavioral Intervention for Tics (CBIT). Evidence was also found for Exposure and Response Prevention (ERP), but to a lesser degree of certainty than HRT/CBIT due to fewer studies. Currently, cognitive interventions and third-wave interventions are not recommended as stand-alone treatments for tic disorders. Several novel treatment delivery formats are currently being evaluated, of which videoconference delivery of HRT/CBIT has the most evidence to date. To summarize, when psychoeducation alone is insufficient, both HRT/CBIT and ERP are recommended as first-line interventions for tic disorders. As part of the development of the clinical guidelines, a survey is reported from ESSTS members and other tic disorder experts on preference, use and availability of psychological interventions for tic disorders.
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Project description:BackgroundA tic is a sudden, rapid, recurrent, nonrhythmic motor movement, or vocalization. Tic disorders are diagnosed based on the presence of motor or vocal tics, duration of tic symptoms, and age at onset. Current clinical practice guidelines strongly recommend behavioral therapies because they are more effective and safer than medications. To determine the most effective nonpharmacological intervention for tic disorders and Tourette syndrome, we will conduct a systematic review and network meta-analysis.MethodsWe will search the Cochrane Central Register of Controlled Trials, MEDLINE, EMBASE, PsycARTICLES, AMED, 3 Chinese databases (China National Knowledge Infrastructure, Chongqing VIP, and Wanfang Data), 3 Korean databases (Korean Medical Database, Korean studies Information Service System, and ScienceON), and a Japanese database (CiNii). There will be no language or date restrictions. The primary outcome will be the tic severity scale, the Yale Global Tic Severity Scale. The secondary outcomes will include the effective rate defined by the trial authors, dropout rate, and adverse events. Methodological quality will be assessed using the Cochrane risk of bias tool.ResultsResults of this review and network meta-analysis will be published in a peer-reviewed journal.ConclusionsThis systematic review will assess the effectiveness of nonpharmacological interventions for treating tic disorders. A systematic review or meta-analysis will provide an unbiased overview of the existing evidence.
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