Treatment of refractory obsessive-compulsive disorder with nutraceuticals (TRON): a 20-week, open label pilot study.

BACKGROUND: Obsessive-compulsive disorder (OCD) is often challenging to treat and resistant to psychological interventions and prescribed medications. The adjunctive use of nutraceuticals with potential neuromodulatory effects on underpinning pathways such as the glutamatergic and serotonergic systems is one novel approach. OBJECTIVE: To assess the effectiveness and safety of a purpose-formulated combination of nutraceuticals in treating OCD: N-acetyl cysteine, L-theanine, zinc, magnesium, pyridoxal-5' phosphate, and selenium. METHODS: A 20-week open label proof-of-concept study was undertaken involving 28 participants with treatment-resistant DSM-5-diagnosed OCD, during 2017 to 2020. The primary outcome measure was the Yale-Brown Obsessive-Compulsive Scale (YBOCS), administered every 4 weeks. RESULTS: An intention-to-treat analysis revealed an estimated mean reduction across time (baseline to week-20) on the YBOCS total score of -7.13 (95% confidence interval = -9.24, -5.01), with a mean reduction of -1.21 points per post-baseline visit (P ≤ .001). At 20-weeks, 23% of the participants were considered "responders" (YBOCS ≥35% reduction and "very much" or "much improved" on the Clinical Global Impression-Improvement scale). Statistically significant improvements were also revealed on all secondary outcomes (eg, mood, anxiety, and quality of life). Notably, treatment response on OCD outcome scales (eg, YBOCS) was greatest in those with lower baseline symptom levels, while response was limited in those with relatively more severe OCD. CONCLUSIONS: While this pilot study lacks placebo-control, the significant time effect in this treatment-resistant OCD population is encouraging and suggests potential utility especially for those with lower symptom levels. Our findings need to be confirmed or refuted via a follow-up placebo-controlled study.

Factors influencing health practitioners' cognitive processing and decision-making style.

Successful interventions, healthcare planning, and patient-centered care require explanation, justification, and collaboration through interprofessional clinical decision-making (CDM). Understanding health practitioners' decision-making styles and influencing factors can enhance CDM capabilities. Health professionals and students (N = 229) completed an online survey on their decision-making styles, interprofessional education, interprofessional practice, discipline education, clinical experience, processing styles, personality, interpersonal motivational factors, and age. To assess the influence of task structure, participants answered CDM questions on a high- and a low-structured case study. Age demonstrated an effect on the level of clinical experience, while clinical experience also mediated the effect of age on rational processing styles. While personality results were mixed, consistent with previous findings, conscientiousness predicted rational processing style. Effects of interpersonal motivation on personality were also mixed, insofar as results indicated an association between conscientiousness and both experiential and rational processing styles. Interpersonal motivation also predicted rational processing styles. The complexity of CDM and factors influencing healthcare practitioners' processing and decision-making styles was highlighted. To optimize CDM processes by addressing errors and biases, CDM, and practice complexity, healthcare practitioner education should include theory-driven CDM orientation frameworks.

Cognitive continuum theory in interprofessional healthcare: A critical analysis.

Effective clinical decision making is among the most important skills required by healthcare practitioners. Making sound decisions while working collaboratively in interprofessional healthcare teams is essential for modern healthcare planning, successful interventions, and patient care. The cognitive continuum theory (CCT) is a model of human judgement and decision making aimed at orienting decision-making processes. CCT has the potential to improve both individual health practitioner, and interprofessional team understanding about, and communication of, clinical decision-making processes. Examination of the current application of CCT indicates that this theory could strengthen interprofessional team clinical decision making (CDM). However, further research is needed before extending the use of this theoretical framework to a wider range of interprofessional healthcare team processes. Implications for research, education, practice, and policy are addressed.

Comorbidity in Emetophobia (Specific Phobia of Vomiting).

BACKGROUND: Emetophobia (fear of vomiting) is an anxiety disorder in which individuals report clinical levels of fear that they may vomit or be exposed to the vomit of others. The prevalence of comorbidity of emetophobia with other conditions has previously only been investigated using self-report instruments. METHOD: Sixty-four adults with emetophobia participated in an online structured clinical diagnostic interview assessing the presence of emetophobia and other conditions. RESULTS: Higher comorbidity for depression, generalized anxiety disorder, panic disorder, social anxiety disorder and obsessive-compulsive disorder were found in participants compared with general population norms. CONCLUSIONS: Emetophobia is commonly comorbid with other anxiety and depressive disorders. Comorbidity rates, when assessed using a structured clinical interview, were lower than previously reported using self-report alone. Copyright © 2015 John Wiley & Sons, Ltd. Key Practitioner Message Emetophobia (specific phobia of vomiting) is a clinical fear of vomiting. Individuals with emetophobia show high comorbidity with other anxiety and mood disorders. The most common comorbid conditions were generalized anxiety disorder, panic disorder, hypochondriasis and obsessive-compulsive disorder. Clinicians should ensure that they assess for the presence of comorbid conditions when treating emetophobia.

Difficult-to-treat pediatric obsessive-compulsive disorder: feasibility and preliminary results of a randomized pilot trial of D-cycloserine-augmented behavior therapy.

BACKGROUND: This study examined the feasibility and preliminary effectiveness of d-cycloserine (DCS)-augmented cognitive behavioral therapy (CBT) for children and adolescents with difficult-to-treat Obsessive Compulsive Disorder, in a double-blind randomized controlled pilot trial (RCT). METHODS: Seventeen children and adolescents (aged 8-18 years) with a primary diagnosis of OCD, which was deemed difficult-to-treat, were randomly assigned to either nine sessions of CBT including five sessions of DCS-augmented exposure and response prevention (ERP) [ERP + DCS] or nine sessions of CBT including five sessions of placebo-augmented ERP [ERP + PBO]. Weight-dependent DCS or placebo doses (25 or 50 mg) were taken 1 hour before ERP sessions. RESULTS: At posttreatment, both groups showed significant improvements with 94% of the entire sample classified as responders. However, a greater improvement in the ERP + DCS relative to the ERP + PBO condition was observed at 1-month follow-up on clinician-rated obsessional severity and diagnostic severity, and parent ratings of OCD severity. There were no changes across time or condition from 1- to 3-month follow-up. CONCLUSIONS: In this preliminary study, DCS-augmented ERP produced significant improvements in OCD severity from posttreatment to 1-month follow-up, relative to a placebo control condition, in severe and difficult-to-treat pediatric OCD. The significant effect on obsessional severity suggests that DCS augmentation might be associated with enhanced modification of obsessional thoughts during ERP, and warrants further investigation.

A Qualitative Exploration of General Practitioners' Treatment Decision-Making for Depressive Symptoms.

BACKGROUND: General practitioners (GPs) provide the most antidepressant prescriptions and psychologist referrals in Australia, yet little is known about how they decide between treatments for depressive symptoms. AIMS: This study examined the decision cues that GPs use when deciding how to treat depressive symptoms and the meaning they attribute to these associations. METHODS: Structured interviews were conducted with 16 Australian GPs in a "think-aloud" verbal protocol analysis format. The transcripts were analyzed using content coding and thematic analysis, informed by the dual processes model of decision making. RESULTS: Participants associated prescribing antidepressants with severe depressive symptoms, and psychologist referrals were the preferred initial treatment provided patients were willing to engage. Four main themes emerged from the thematic analysis: 1) psychologist as default, 2) the risk is just too high, 3) medication as supplement, and 4) drivers of antidepressants. Contrary to previous findings, participants identified a strong heuristic association between depressive symptoms and psychologist referral. Antidepressant prescription was associated with severe symptoms, higher risk, and a cluster of cues that lead them away from psychologist referral. CONCLUSIONS: Participants demonstrated an oversensitivity to depressive symptom severity, associating psychologist referrals with subclinical depressive symptoms, and starting antidepressants for suicidal ideation and significant functional decline. HIGHLIGHTS: Psychologist referrals were the default preference for GPs when treating depressive symptoms, whereas antidepressants were reserved for patients with elevated risk from severe depressive symptoms and suicidal ideation.Participants' conceptualization of depression severity was oversensitive compared with treatment guidelines.Contrary to treatment guidelines, GPs in this study demonstrated their discomfort for referring patients with suicidal ideation to a psychologist without initiating antidepressants.GPs should consider whether patients within their mild to moderate assessment range can be treated exclusively with more cost-effective means than psychological therapy such as e-mental health programs, guided self-help, and lifestyle changes alone.

Dysfunctional sleep beliefs and behaviours: Psychological factors in sleep-related headaches.

Sleep problems are amongst the most common triggers of migraine and non-migraine primary headache. Despite a majority of sleep problems being psychological in nature, there is a paucity of quantitative research on the psychological factors involved in sleep-related headaches. This is the first study to examine the link between maladaptive sleep beliefs and headaches. 542 participants completed an online battery measuring headache, sleep, and psychological distress. Avoidance of sleep-related headache triggers was associated with more headaches, as mediated by increased sensitivity to the triggers. Sleep quality, sleep beliefs, and sleep behaviours all significantly (p < .001) correlated with headache frequency and disability, with effect sizes ranging from small (rs = 0.16) to medium (rs = 0.37). Mediation models testing the effect of sleep beliefs on headaches via sleep quality (covaried by sleep behaviours) accounted for 13% and 14% of variance in migraine and non-migraine headaches, respectively (p < .001). Avoidance of sleep-related headache triggers was shown to be associated with greater headache frequency (via increased trigger sensitivity). It is posited that maladaptive sleep beliefs and behaviours may increase headache activity by causing poor sleep quality, leading to dysregulation in brain regions shared between sleep and headaches.

N-acetyl cysteine (NAC) augmentation in the treatment of obsessive-compulsive disorder: A phase III, 20-week, double-blind, randomized, placebo-controlled trial.

OBJECTIVE: Preliminary evidence has suggested that adjunctive N-acetylcysteine (NAC), an antioxidant precursor to glutathione, may reduce symptoms of obsessive-compulsive disorder (OCD). We conducted a 20-week, multi-site, randomized controlled trial to investigate the safety and efficacy of the adjunctive use of NAC in OCD. METHODS: The study was a phase III, 20-week, double-blind, randomized controlled trial across multiple sites in Australia investigating 2 g to 4 g per day of NAC (titrated according to response) in 98 participants with DSM-5 diagnosed OCD. Data were analysed using linear mixed effects models for the 89 participants who attended at least one follow-up visit. RESULTS: A modified intention-to-treat analysis of the primary outcome found no evidence that NAC reduced symptoms of OCD measured on the Yale-Brown Obsessive-Compulsive Scale, relative to placebo (mean difference at week 20 = 0.53, 95% compatibility interval = -2.18, 3.23; p = 0.70; favouring placebo). There was also no evidence that NAC, compared to placebo, improved outcomes on the secondary measures including anxiety, depression, quality of life, functioning, or clinician/participant impression. NAC was well-tolerated with only mild gastrointestinal adverse events associated with the treatment. CONCLUSION: We found no evidence supporting the efficacy of the adjunctive use of NAC in OCD.

A meta-analysis of the efficacy of pregabalin in the treatment of generalized anxiety disorder.

OBJECTIVE: Generalized anxiety disorder (GAD) is a chronic anxiety disorder that leads to significant functional impairment and reduced quality of life. Pregabalin is a novel analogue of the inhibitory neurotransmitter gamma amino butyric acid, which has been proposed as a treatment for a range of conditions including GAD. This study examined the efficacy of pregabalin for GAD across published trials, using a meta-analytic method. METHOD: This study examined the 7 published placebo-controlled trials of GAD using pregabalin, and, using meta-analytic techniques, we calculated the effect size of treatment with pregabalin (compared with placebo) on a total of 1352 people. RESULTS: The overall effect size of pregabalin in the treatment of GAD was Hedges' g = 0.364, with an effect size of 0.349 on psychic anxiety symptoms and of 0.239 on somatic anxiety symptoms. CONCLUSION: Pregabalin is an efficacious therapy for GAD, although effect sizes are smaller than those from earlier studies. Limitations and future research directions are discussed.

Decision-making in single and multiple-screen CCTV surveillance.

One task of CCTV operation is to decide whether footage shown in videos depicts criminal behaviour, or allows a viewer to predict its occurrence. An increasing prevalence of cameras in the world, means an increase in screens in the control room. This presents a signal-to-noise challenge where the signal (criminal activity) may become more difficult to detect amongst the noise. We used signal detection approaches to understand which factors were associated with decision-making in a CCTV task. When detecting aggressive incidents, higher conscientiousness was associated with making better decisions, with a higher criterion for responding (meaning fewer false-positive responses). However, conscientious individuals tended to be less confident (in multiplex displays), and were slower in responding - which reflects that these individuals require more evidence to make these decisions. Higher trait cognitive anxiety was again associated with making earlier responses, while extraversion was also associated with earlier responding in multiplexed displays. Taken in combination, our results suggest that there is a fine balance between making correct decisions, and making early decisions - and that these need to be considered together in the CCTV task.

A randomised, double-blind, sham-controlled trial of deep brain stimulation of the bed nucleus of the stria terminalis for treatment-resistant obsessive-compulsive disorder.

Deep brain stimulation (DBS) is a promising treatment for severe, treatment-resistant obsessive-compulsive disorder (OCD). Here, nine participants (four females, mean age 47.9 ± 10.7 years) were implanted with DBS electrodes bilaterally in the bed nucleus of the stria terminalis (BNST). Following a one-month postoperative recovery phase, participants entered a three-month randomised, double-blind, sham-controlled phase before a twelve-month period of open-label stimulation incorporating a course of cognitive behavioural therapy (CBT). The primary outcome measure was OCD symptoms as rated with the Yale-Brown Obsessive-Compulsive Scale (YBOCS). In the blinded phase, there was a significant benefit of active stimulation over sham (p = 0.025, mean difference 4.9 points). After the open phase, the mean reduction in YBOCS was 16.6 ± 1.9 points (χ2 (11) = 39.8, p = 3.8 × 10-5), with seven participants classified as responders. CBT resulted in an additive YBOCS reduction of 4.8 ± 3.9 points (p = 0.011). There were two serious adverse events related to the DBS device, the most severe of which was an infection during the open phase necessitating device explantation. There were no serious psychiatric adverse events related to stimulation. An analysis of the structural connectivity of each participant's individualised stimulation field isolated right-hemispheric fibres associated with YBOCS reduction. These included subcortical tracts incorporating the amygdala, hippocampus and stria terminalis, in addition to cortical regions in the ventrolateral and ventromedial prefrontal cortex, parahippocampal, parietal and extrastriate visual cortex. In conclusion, this study provides further evidence supporting the efficacy and tolerability of DBS in the region of the BNST for individuals with otherwise treatment-refractory OCD and identifies a connectivity fingerprint associated with clinical benefit.

Fear and Anxiety Pathways Associated with Root Canal Treatments Amongst a Population of East Asian Origin.

Objective: This study aimed to identify and compare the pathways of endodontic fear and anxiety amongst East Asian origin patients attending Griffith University's Dental Clinics, Gold Coast, Australia. Methods: East Asian patients who attended the Griffith University dental clinics were included in this study. The "My Endodontic Fear" survey was used. The pathways involved in self-perception of dental fear and anxiety were assessed through 5 different questions. Chi-square test was for statistical analysis and the level of significance was set at P<0.05. Results: One hundred and forty six participants (n=146) (ages 18-62 years) of East Asian descent met the criteria to participate. 58.2% were females, and 41.8% males. The ethnicities were split into Chinese origin and non-Chinese origin (Korean, Phillipino, Japanese, Vietnamese). Results indicate multiple pathways affect the origin of fear, regardless of ethnicity. The Cognitive Conditioning pathway was the primary pathway selected by the Chinese and non-Chinese sub groups (51.4%, 43.6%) followed by the Informative (38.3%, 38.5%), then Vicarious (27.1%, 33.3%) and Parental (18.7%, 33.3%) pathways respectively.The Verbal Threat pathway was the least selected pathway for both groups, however the non- Chinese group selected this pathway significantly more often than the Chinese group (P<0.001). Conclusion: This study demonstrates that the Cognitive Conditioning pathway was the primary fear and anxiety pathway utilized by both East Asian sub-groups. Understanding how patients develop fear and anxiety can help treating dentists discuss triggering factors for patients and alleviate undue anxiety prior to treatment.

Relapse of successfully treated anxiety and fear: theoretical issues and recommendations for clinical practice.

Despite the existence of effective interventions for anxiety disorders, relapse--or the return of fear--presents a significant problem for patients and clinicians in the longer term. The present paper draws on the experimental and clinical behavioural literature, reviewing the mechanisms by which the return of fear can occur. The aim of the paper was to generate a list of treatment recommendations for clinicians aimed at reducing relapse in successfully treated anxiety disorders. Clinical and experimental literature on the mechanisms of renewal, reinstatement, spontaneous recovery and reacquisition are reviewed. These are linked with the clinical and experimental literature on the return of fear in successfully treated anxiety. A list of recommendations to assist in reducing the probability of relapse in successfully treated anxiety is presented. This list includes methods for use in behavioural (exposure) treatment of anxiety disorders that aim to enhance clinical outcomes. Despite the significant problem of relapse in successfully treated anxiety, there are methods available to reduce the probability of relapse through return of fear. Clinicians engaging in treatment of anxiety disorders should be mindful of these methods to ensure optimal patient outcome.

Psychological Sleep Interventions for Migraine and Tension-Type Headache: A Systematic Review and Meta-Analysis.

Disordered sleep, poor sleep quality, and insufficient or excessive sleep duration are known triggers of primary and secondary headaches. Given this, it is plausible that improving sleep will subsequently reduce headache activity. We report a systematic review of the literature, examining studies utilising psychological sleep interventions for the treatment of migraine and tension-type headache. PubMed, EMBASE, CINAHL, PsycINFO, and Cochrane Central were searched, using terms pertaining to psychological sleep interventions and headaches. Meta-analysis was performed for two outcome measures; headache frequency, and headache intensity. 103 studies were retrieved, of which 55 were duplicates. After completing reviews, three studies were retained. An additional eligible study was published after the initial search, and was found via monthly update searches, resulting in a total of four included studies. The effects of psychological sleep interventions (and in one study, combined with drug therapy) significantly reduced headache frequency and headache intensity. Three studies improved various sleep outcomes such as duration, efficiency, and excessive sleepiness. Psychological sleep interventions improve headache frequency and sleep, however there is conflicting evidence for the effect on headache intensity between studies. Limitations include the small number of studies conducted to date. Despite this, the notable improvements in headaches and sleep achieved after psychological sleep interventions indicates further research on this promising topic is warranted.

Influence of culture change on the perception of fear and anxiety pathways in Endodontics: A pilot proof of concept study.

This study assessed the influence of cultural changes (known as acculturation) on pathways of fear and anxiety in Endodontics. A purposive sampling technique identified patients of Saudi Arabian descent living in Australia and Saudi Arabia. Only patients with root canal fillings (or treatment planned for endodontic treatment) were included. Patients with intellectual disabilities, surgical root therapy, and aged under 20 were excluded. Consenting patients attending the dental clinics of University of Griffith University, Australia and University of Dammam, Saudi Arabia completed the "My Endodontic Fear Questionnaire." Three hundred and twenty-four patients (21-75 years) were included, 90% of participants reported more than one pathway. Australian Saudi Arabians mainly utilised vicarious pathway (94.9%), whilst Saudi Arabians utilised the verbal threat (93.5%) and parental pathway (78.3%). This study highlights the possible role of acculturation on the perception of fear and anxiety in Endodontics; however, further research with other ethnic groups is essential to enhance our understanding.

Paruresis (psychogenic inhibition of micturition): cognitive behavioral formulation and treatment.

Paruresis is a condition characterized by difficulty or inability to urinate in situations where others are present, or may soon be present. Despite knowledge that paruresis can significantly impact on occupational functioning, social functioning, and quality of life, there exists a paucity of research into effective treatments. Although cognitive conceptualizations have been advanced for other anxiety disorders, there has not been a comprehensive cognitive behavioral model of paruresis. This article presents a revised cognitive and behavioral conceptualization of paruresis, drawing on empirical evidence from other anxiety disorders. Using this conceptualization, a cognitive-behavioral intervention strategy is outlined, with clear targets for cognitive and behavioral strategies.

A cognitive behavioral case formulation framework for treatment planning in anxiety disorders.

A cognitive behavioral case formulation framework (CBCFF) for anxiety disorders is presented, in which the etiological and maintaining factors for the anxiety disorders are outlined in a single, simple, visual framework. This CBCFF is then used to demonstrate the specific links of different cognitive and behavioural treatment components to aspects of the case formulation. An example is used to illustrate the use of the CBCFF, highlighting its utility with novel presentations for which no manualized treatments exist.

The growth of PTSD in anxiety disorder research.

This article examines the growth in research on post-traumatic stress disorder (PTSD), which has expanded dramatically since its introduction in 1980. There are now over 350 articles indexed in Medline each year that refer to PTSD in their title. PTSD accounted for 16% of anxiety disorder research in the early 1980s, growing to one third by 2005.

Treatment of severe, treatment-refractory obsessive-compulsive disorder: a study of inpatient and community treatment.

INTRODUCTION: This research reports on a prospective outcome study of two cohorts of patients with severe, chronic, resistant obsessive-compulsive disorder (OCD). METHODS: One cohort consisted of a total of 52 patients treated in an inpatient setting, while the second group comprised 65 patients treated in a community-outpatient setting. Treatment consistent primarily of intensive graded exposure and self-imposed response prevention augmented with cognitive restructuring. RESULTS: The groups demonstrated significant improvement over the course of treatment. In the inpatient and community groups, there was significant improvement over the first 12 weeks of treatment, and further improvement between 12 and 24 weeks. CONCLUSION: These results suggest that even for patients who have demonstrated treatment-resistance, there may be benefit in intensive behavioral treatment of OCD. In addition it was found that even for those patients with the most profound refractory OCD and complicating factors inpatient stays of up to 24 weeks were effective in reducing symptoms.

Publication trends in individual anxiety disorders: 1980-2015.

The aim of the current study was to examine trends in anxiety disorder publication over the past 25 years, and to project likely future trends from these. Medline searches were used to find a representative sample of the total number of journal articles published each year from 1980 to 2005 that were focused on each particular anxiety disorder. Results demonstrated that anxiety disorder research continued to grow over the 25-year period examined. Growth was particularly strong for OCD and PTSD, with strong research growth in panic disorder also in the 1980s. Only specific phobia and agoraphobia did not grow in research output over the review period. Growth is projected to continue over the next 10 years.