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"Tics"
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Functional connectivity during tic suppression predicts reductions in vocal tics following behavior therapy in children with Tourette syndrome
2023
Comprehensive Behavioral Intervention for Tics (CBIT) is recommended as a first-line treatment for Tourette syndrome in children and adults. While there is strong evidence proving its efficacy, the mechanisms of reduction in tic severity during CBIT are still poorly understood. In a recent study, our group identified a functional brain network involved in tic suppression in children with TS. We reasoned that voluntary tic suppression and CBIT may share some mechanisms and thus we wanted to assess whether functional connectivity during tic suppression was associated with CBIT outcome.
Thirty-two children with TS, aged 8 to 13 years old, participated in a randomized controlled trial of CBIT
a treatment-as-usual control condition. EEG was recorded during tic suppression in all participants at baseline and endpoint. We used a source-reconstructed EEG connectivity pipeline to assess functional connectivity during tic suppression.
Functional connectivity during tic suppression did not change from baseline to endpoint. However, baseline tic suppression-related functional connectivity specifically predicted the decrease in vocal tic severity from baseline to endpoint in the CBIT group. Supplementary analyses revealed that the functional connectivity between the right superior frontal gyrus and the right angular gyrus was mainly driving this effect.
This study revealed that functional connectivity during tic suppression at baseline predicted reduction in vocal tic severity. These results suggest probable overlap between the mechanisms of voluntary tic suppression and those of behavior therapy for tics.
Journal Article
Oromandibular tics associated with Tourette syndrome
by
Jankovic, Joseph
,
Baizabal-Carvallo, José Fidel
,
Alonso-Juarez, Marlene
in
Comorbidity
,
Gilles de la Tourette syndrome
,
Humans
2023
Background
Tourette syndrome (TS) is the most common cause of chronic tics. Patients with TS frequently manifest motor tics involving the eyes and face but oromandibular (OM) tics have been rarely studied.
Materials and methods
We reviewed the medical records and video-recordings of 155 consecutive patients with TS in our movement disorders clinic. In addition, we studied 35 patients with classic tardive dyskinesia (TD) and compared their clinical and demographic features with those with TS.
Results
We identified 41 patients with OM tics (26.5%). Although patients with OM tics had a greater overall tic severity and higher frequency of.complex motor and phonic tics, in the bivariate analysis, only comorbid dystonic tics (
P
= 0.001), greater number of affected body parts (
P
= 0.012) and more frequent eye-rolling tics (
P
= 0.059) were included in the final regression model after controlling for other variables. When compared with patients with OM tics, patients with classic TD had more frequently masticatory movements (sensitivity, 0.86; specificity, 0.95), continuous tongue movements (sensitivity, 0.71; specificity, 1.0) and continuous OM movements (sensitivity, 0.4; specificity, 1.0).
Conclusions
OM tics are common and often troublesome or even disabling symptoms in patients with TS. They may be difficult to differentiate from TD, but the latter is typically manifested by continuous orolingual and masticatory movements.
Journal Article
The CBIT + TMS trial: study protocol for a two-phase randomized controlled trial testing neuromodulation to augment behavior therapy for youth with chronic tics
2023
Background
Comprehensive Behavioral Intervention for Tics (CBIT) is a first-line treatment for tic disorders that aims to improve controllability over tics that an individual finds distressing or impairing. However, it is only effective for approximately half of patients. Supplementary motor area (SMA)-directed neurocircuitry plays a strong role in motor inhibition, and activity in this region is thought to contribute to tic expression. Targeted modulation of SMA using transcranial magnetic stimulation (TMS) may increase CBIT efficacy by improving patients' ability to implement tic controllability behaviors.
Methods
The CBIT + TMS trial is a two-phase, milestone-driven early-stage randomized controlled trial. The trial will test whether augmenting CBIT with inhibitory, non-invasive stimulation of SMA with TMS modifies activity in SMA-mediated circuits and enhances tic controllability in youth ages 12–21 years with chronic tics. Phase 1 will directly compare two rTMS augmentation strategies (1 Hz rTMS vs. cTBS) vs. sham in
N
= 60 participants. Quantifiable, a priori “Go/No Go Criteria” guide the decision to proceed to phase 2 and the selection of the optimal TMS regimen. Phase 2 will compare the optimal regimen vs. sham and test the link between neural target engagement and clinical outcomes in a new sample of
N
= 60 participants.
Discussion
This clinical trial is one of few to date testing TMS augmentation of therapy in a pediatric sample. The results will provide insight into whether TMS is a potentially viable strategy for enhancing CBIT efficacy and reveal potential neural and behavioral mechanisms of change.
Trial registration
ClinicalTrials.gov
NCT04578912
. Registered on October 8, 2020.
Journal Article
Testing the specificity of phenomenological criteria for functional tic‐like behaviours in youth with Tourette syndrome
2024
Background and purpose The aim was to test the specificity of phenomenological criteria for functional tic‐like behaviours (FTLBs). The European Society for the Study of Tourette Syndrome (ESSTS) criteria for the diagnosis of FTLBs include three major criteria: age at symptom onset ≥12 years, rapid evolution of symptoms and specific phenomenology. Methods Children and adolescents with primary tic disorders have been included in a Registry in Calgary, Canada, since 2017. Using the Yale Global Tic Severity Scale, the proportion of youth with primary tic disorders who met specific phenomenological criteria for FTLBs at first visit was assessed: (1) having ≥1 specific complex motor tic commonly seen in FTLBs, including complex arm/hand movements, self‐injurious behaviour, blocking, copropraxia; (2) having ≥1 specific complex phonic tic commonly seen in FTLBs, including saying words, phrases, disinhibited speech, coprolalia; (3) having a greater number of complex tics than simple tics. Children seen for the first time between 2017 and 2019 and between 2021 and 2023 were analysed separately. Results Of 156 participants included between 2017 and 2019, high specificity (94.2%) of the age at onset criterion (≥12 years) and of having at least two complex motor behaviours and one complex phonic behaviour at first visit (96.2%) was observed. Some of the complex motor tics had lower specificity. The specificity of the FTLB diagnostic criterion of having more complex tics than simple tics was 89.7%. There was no significant difference in specificity of the criteria for children seen for the first time between 2017 and 2019 and between 2021 and 2023 (n = 149). Conclusion This information supports the use of the ESSTS criteria for FTLBs in clinical practice.
Journal Article
European clinical guidelines for Tourette syndrome and other tic disorders: summary statement
by
Roessner, Veit
,
Müller-Vahl, Kirsten R.
,
Szejko, Natalia
in
Child & adolescent psychiatry
,
Child and Adolescent Psychiatry
,
Clinical practice guidelines
2022
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. Further, summary findings from a recent survey conducted amongst TS experts on these same topics are presented, as well as the first European patient representative statement on research. Finally, an updated decision tree is introduced providing a practical algorithm for the treatment of patients with TS. Interestingly, in the last decade there has been a significant shift in assessment and treatment of tics, with more emphasis on non-pharmacological treatments.
Journal Article
The effects of Gilles de la Tourette syndrome and other chronic tic disorders on quality of life across the lifespan: a systematic review
2016
Gilles de la Tourette syndrome (GTS) and other chronic tic disorders are neurodevelopmental conditions characterized by the presence of tics and associated behavioral problems. Whilst converging evidence indicates that these conditions can affect patients’ quality of life (QoL), the extent of this impairment across the lifespan is not well understood. We conducted a systematic literature review of published QoL studies in GTS and other chronic tic disorders to comprehensively assess the effects of these conditions on QoL in different age groups. We found that QoL can be perceived differently by child and adult patients, especially with regard to the reciprocal contributions of tics and behavioral problems to the different domains of QoL. Specifically, QoL profiles in children often reflect the impact of co-morbid attention-deficit and hyperactivity symptoms, which tend to improve with age, whereas adults’ perception of QoL seems to be more strongly affected by the presence of depression and anxiety. Management strategies should take into account differences in age-related QoL needs between children and adults with GTS or other chronic tic disorders.
Journal Article
Group behavioral interventions for tics and comorbid symptoms in children with chronic tic disorders
by
Rotstein, Michael
,
Murphy, Tara
,
Fattal-Valevski, Aviva
in
Aggressive behavior
,
Anxiety
,
Behavior problems
2022
Exposure and Response Prevention (ERP), Habit Reversal Training (HRT) and Comprehensive Behavioral Intervention for Tics (CBIT) are effective in reducing tic severity. ERP and HRT have recently gained primary support in a group setting, while CBIT has not been examined similarly. We compared the efficacy of group-CBIT to group-Educational Intervention for Tics (group-EIT) for tics and comorbid symptoms. Children with Tourette Syndrome (TS) or Chronic Tic Disorder (CTD) were randomized to group-CBIT or group-EIT. Tics and comorbid symptoms were assessed in forty-six children pre- and postintervention, and 3-month later. Yale Global Tic Severity Scale (YGTSS) Motor tic severity decreased following both interventions, and was maintained at follow-up for group-CBIT only. The Parent Tic Questionnaire (PTQ) showed significant decrease in total and motor tic severity following group-CBIT only, a gain maintained three months later. YGTSS impairment score decreased following both interventions and was maintained at follow-up. YGTSS vocal tic severity score increased following both interventions, and then decreased significantly at follow up. Co-morbid symptoms including anxiety, behavioral problems, and aggressive behavior decreased following both interventions. Children with behavioral problems benefitted less while children with higher intellectual ability benefit more from intervention. Both group interventions showed efficacy in reducing tic impairment and comorbid symptoms. Group-CBIT was superior to group-EIT in reducing motor tic severity at 3-month follow-up, showing an advantage for tic-focused treatment. Based on the PTQ, group-CBIT was superior to group-EIT in reducing motor, vocal, and total tic scores, a gain maintained three months later. Clinical trial registry information-Group Intervention for Children with Chronic Tics Syndrome: CBIT vs Psychoeducational Intervention URL:
http://clinicaltrials.gov
, Identifier: NCT02407951,
http://www.controlled-trials.com
).
Journal Article
Current Management of Tics and Tourette Syndrome: Behavioral, Pharmacologic, and Surgical Treatments
by
Jankovic, Joseph
,
Billnitzer, Andrew
in
Adrenergic alpha-2 Receptor Agonists - therapeutic use
,
Antipsychotic Agents - therapeutic use
,
Antipsychotics
2020
Tourette syndrome is a heterogeneous neurobehavioral disorder manifested by childhood-onset motor and phonic tics, often accompanied by a variety of behavioral comorbidities, including attention deficit and obsessive compulsive disorder. Treatment must be tailored to the needs and goals of the individual patients and their families. All patients should receive education on the condition and, if possible, engage behavioral therapy targeted towards tics and/or comorbidities. Pharmacological therapies, such as alpha agonists, topiramate, and vesicular monoamine transport type 2 inhibitors, are generally used as first-line therapies in patients with troublesome tics that are not controlled by behavioral therapy or when the latter is not available or accessible. Botulinum toxin injections can be used in patients with bothersome focal tics. Second-line therapy includes antipsychotics, such as fluphenazine, aripiprazole, risperidone, and ziprasidone. These medications are generally efficacious but carry the risk of metabolic syndrome, tardive dyskinesia, and other side effects. Much more research is needed before novel therapies such as cannabis-derived products or transcranial magnetic stimulation can be recommended. There is promise in ongoing clinical trials with D1 receptor antagonist ecopipam and other experimental therapeutics. Patients with tics that are refractory to conventional treatments may be candidates for deep brain stimulation, but further studies are needed to determine the optimal target selection.
Journal Article
Prevalencia de ciberviolencia de género en el noviazgo en dos universidades de Bucaramanga y su área metropolitana
2023
Las Tecnologías de Información y Comunicación (TICs) se han transformado en una herramienta de interacción y entretenimiento que se evidencia en diferentes ámbitos de la vida, facilitando, al mismo tiempo, un espacio tecnológico para establecer y mantener relaciones de noviazgo en los jóvenes por medio del uso frecuente de las redes sociales, y favoreciendo elementos de control, aislamiento, dominación, sometimiento e imposición. Lapresente investigación identifica la prevalencia de ciberviolencia de género en el noviazgo en jóvenes universitarios, mediante un enfoque cuantitativo con un diseño no experimental de tipo descriptivo transversal, a través de una muestra conformada por 329 estudiantes universitarios, 196 mujeres y 133 hombres, con edades comprendidas entre 18 y 26 años. Para la evaluación se empleó el Cyber Dating Abuse Questionnaire (CDAQ) el cual está compuesto por 40 reactivos que evalúan de forma paralela victimización y perpetración en dos escalas: agresión directa y control/monitoreo. Los resultados mostraron que las conductas que más se repiten, tanto en el rol de víctima como en el de agresor, son las de control y monitoreo, evidenciándose además que no existen diferencias estadísticamente significativas respecto al porcentaje de las subescalas según sexo; reafirmándose la necesidad de continuar investigando y generando herramientas que respondan a este fenómeno.
Journal Article
Optimizing behavior therapy for youth with Tourette’s disorder
by
McGuire, Joseph F
,
Piacentini, John
,
Ramsey Kesley
in
Attention deficit hyperactivity disorder
,
Behavior modification
,
Behavior therapy
2020
Tourette’s Disorder (TD) is characterized by tics that cause distress and impairment. While treatment guidelines recommend behavior therapy as a first-line intervention, patients with TD may exhibit limited therapeutic response. Given the need to improve treatment outcomes, this study examined the efficacy of augmenting behavior therapy with d-cycloserine (DCS) to reduce tic severity in a placebo-controlled quick-win/fast-fail trial. Twenty youth with TD completed a baseline assessment to characterize tic severity, premonitory urges, medical history, and psychiatric comorbidity. Youth were randomly assigned to receive a single session of habit reversal training (HRT) augmented by either 50 mg of DCS or placebo. Two bothersome tics on the Hopkins Motor/Vocal Tic Scale (HM/VTS) were targeted for treatment during HRT. One week after the HRT session, youth completed a posttreatment assessment to evaluate change in the severity of bothersome tics. All assessments were completed by independent evaluators masked to treatment group. There was a Treatment Group by Time Interaction in favor of DCS-augmented HRT (p < 0.01), controlling for baseline tic severity, tic medication, and attention deficit hyperactivity disorder. Follow-up comparisons revealed small group differences at the treatment visit (d = 0.27), with the DCS group exhibiting slightly greater severity for targeted tics. There was a large group difference at posttreatment, in which the DCS group exhibited lower severity for targeted tics (d = 1.30, p < 0.001) relative to the placebo group. Findings demonstrate the preliminary enhancement of tic severity reductions by augmenting HRT with DCS compared with placebo augmentation.
Journal Article