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Introduction: Pregabalin is a structural analogue of the inhibitory neurotransmitter GABA. Although pregabalin has demonstrated efficacy in the treatment of generalized anxiety disorder (GAD) in a number of randomized controlled trials, there is little published data on the optimal dose for treating this condition. The objective of the current study was to examine the doseresponse relationship for treatment of GAD with pregabalin. Method: The current study pools results from previous fixed-dose treatment trials of GAD with pregabalin and uses curve-fitting statistical procedures to generate curvilinear regression lines as a synthesis of previous dose-response information. Results: Peak reduction in anxiety symptoms was observed to occur at a dose of approximately 450 mg/day, with a small reduction in treatment effect beyond this dose. Treatment effect on psychic anxiety symptoms reached a peak at approximately 400 mg, with a reduction in efficacy beyond this dose. Somatic anxiety symptoms showed continued increase in therapeutic eff ect up to the maximum dose of 600 mg/day. Discussion: Implications for psychiatric practice, limitations of the methodology and avenues for future research are discussed. [ABSTRACT FROM AUTHOR]

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.

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.

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., (Copyright © 2022 Elsevier Inc. All rights reserved.)

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 (χ 2 (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.

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.

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., (© 2018 Australian Society of Endodontology Inc.)

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., Competing Interests: Conflict of interest: Authors declared no conflict of interest., (Copyright: © 2020 European Endodontic Journal.)

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.

Introduction: Cultural competencies in multicultural societies with different ethnic perceptions pose a challenge during the management and treatment of patients with dental fear and anxiety. This study aimed to identify the most common and relevant pathways of fear and anxiety related to root canal treatment in different ethnic groups., Methods: All participants visiting the Griffith University Dental Clinics, Gold Coast, Australia, were invited to participate if they had undergone primary root canal treatment or were scheduled to undergo the same. Patients with mental disabilities, those with no history of root canal treatment, those who only had surgical root canal treatment, and those below 20 years old were excluded. All participants completed the "My Endodontic Fear questionnaire.", Results: Eight hundred seventy-nine patients (20-90 years old) who had root canal treatment or were scheduled to have one consented to participate in this study. White (54.5%) and Arab/African respondents (30.9%) were more likely (P < .001) to use the conditioning pathway compared with East Asian (10.5%) or Aboriginal/Pacific Islander groups (3.9%). Age was a significant factor for all ethnicities (P < .05); 40-year-old and 65+-year-old groups showed less fear compared with the 20- to 39-year old groups. Female sex was significantly related to the use of the informative (P < .001) and parental (P = .002) pathways., Conclusions: The present study showed that different pathways appear to be adopted by different ethnic groups, indicating the importance of customizing strategies in a multicultural society to manage fear and anxiety related to root canal treatment., (Copyright © 2015 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.)

The aim of this article was to analyze the theories underpinning dental fear, anxiety and phobias. To be included, articles must have been published between the years of 1949 and 2013 concerning fears and phobias within dentistry and/or psychiatry. Of 200 articles originally under review, 140 were included and reviewed by the authors.Five specific pathways relating to dental fear and anxiety were identified; Cognitive Conditioning, Informative, Visual Vicarious, Verbal Threat, and Parental. Eight currently accepted management techniques across all dental disciplines for dental fear and anxiety were identified. Further research is required to identify clinical diagnosis and treatment for fears originating from different pathways.

In July, 1986, Wesley Long Community Hospital, Greensboro, North Carolina, opened its Older Adult Unit. Staffed to accommodate twelve patients, the unit is often operating at capacity. Key to the success of the unit is the process the hospital followed in its development. The hospital tested its preliminary concept for the unit with its consumer populations and tailored the concept to address the needs specifically identified by the populations. In addition, the hospital recognized the importance of an educational role in the promotion of a new service and incorporated this in its marketing strategy. This article outlines the steps followed in the development and successful introduction of the unit.