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Anxiety disorders: a review of current literature
Florence thibaut.
University Hospital Cochin (Site Tarnier), Faculty of Medicine Paris Descartes, INSERM U 894, CNP, Paris, France
Anxiety disorders are the most prevalent psychiatric disorders. There is a high comorbidity between anxiety (especially generalized anxiety disorders or panic disorders) and depressive disorders or between anxiety disorders, which renders treatment more complex. Current guidelines do not recommend benzodiazepines as first-line treatments due to their potential side effects. Selective serotonin reuptake inhibitors and selective serotonin norepinephrine reuptake inhibitors are recommended as first-line treatments. Psychotherapy, in association with pharmacotherapy, is associated with better efficacy. Finally, a bio-psycho-social model is hypothesized in anxiety disorders.
Anxiety disorders are the most prevalent psychiatric disorders (with a current worldwide prevalence of 7.3% [4.8%-10.9%]—Stein et al, in this issue p 127). Among them, specific phobias are the most common, with a prevalence of 10.3%, then panic disorder (with or without agoraphobia) is the next most common with a prevalence of 6.0%, followed by social phobia (2.7%) and generalized anxiety disorder (2.2%). Evidence is lacking as to whether these disorders have become more prevalent in recent decades. Generally speaking, women are more prone to develop emotional disorders with an onset at adolescence; they are 1.5 to 2 times more likely than men to have an anxiety disorder (Bandelow et al. in this issue p 93). 1 , 2
There is a high comorbidity between anxiety (especially generalized anxiety disorders or panic disorders) and depressive disorders. Additionally, anxiety disorders are often associated, which renders treatment even more complex for nonspecialists. As a result, anxiety disorders often remain underdiagnosed and undertreated in primary care. 3
Both psychotherapy and pharmacotherapy have been shown to be more effective than placebo or waiting lists in the treatment of anxiety disorders. In a meta-analysis published in 2015 by Bandelow et al, and based on 234 randomized controlled studies, medications were associated with a significantly higher average pre-post effect size (Cohen's d =2.02) than psychotherapies ( d =1.22; P <0.0001); somehow, patients included in psychotherapy studies were less severely ill. 4 This meta-analysis also showed that psychotherapy in association with pharmacotherapy had a relatively high effect size ( d =2,12). Due to their good benefit/risk balance, selective serotonin reuptake inhibitors and selective serotonin norepinephrine reuptake inhibitors were recommended as first-line treatments. Current guidelines do not recommend benzodiazepines as first-line treatments due to their potential side effects. In fact, Parsaik et al, in a 2016 meta-analysis, 5 have reported a higher mortality rate among benzodiazepines users compared with nonusers. Underlying mechanisms need to be further studied. In addition, the development of tolerance and an increased risk for dependence were also reported in association with long-term use of benzodiazepine (which generally means ≥6 months). An increased risk of dementia was also claimed by several authors in long-term benzodiazepine users (pooled adjusted risk ratio for dementia of 1.55) compared with never users (for review, see ref 6). Finally, benzodiazepines do not treat depression, which is a common comorbid condition in anxiety disorders, and benzodiazepines may be associated with a higher suicide risk in case of comorbidity between anxiety and depressive disorders. 7
The current conceptualization of the etiology of anxiety disorders includes an interaction of psychosocial factors such as childhood adversity or stressful events, and a genetic vulnerability. Until now, there are few biomarkers available. 4 Domschke et al (in this issue, p 159) will summarize recent data about the genetic factors involved in anxiety disorders. The serotonergic and catecholaminergic systems, and neurotrophic signaling, are promising candidate genes in generalized anxiety disorders, even if the genetic risk remains moderate (heritability of approximately 30%). In addition, gene-environment studies have highlighted the importance of early developmental trauma and recent stressful life events in interaction with molecular plasticity markers. Among socio-environmental factors, parenting behavior may also play a role in the prevention of anxiety disorders (Aktar et al, in this issue p 137).
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Anxiety Disorders : A Review
- 1 Department of Psychiatry, New York University Grossman School of Medicine, New York
- Comment & Response A Review of Anxiety Disorders—Reply Kristin L. Szuhany, PhD; Naomi M. Simon, MD, MSc JAMA
- Comment & Response A Review of Anxiety Disorders Falk Leichsenring, DSc; Nikolas Heim, MSc, MA; Christiane Steinert, PhD JAMA
Importance Anxiety disorders have a lifetime prevalence of approximately 34% in the US, are often chronic, and significantly impair quality of life and functioning.
Observations Anxiety disorders are characterized by symptoms that include worry, social and performance fears, unexpected and/or triggered panic attacks, anticipatory anxiety, and avoidance behaviors. Generalized anxiety disorder (6.2% lifetime prevalence), social anxiety disorder (13% lifetime prevalence), and panic disorder (5.2% lifetime prevalence) with or without agoraphobia are common anxiety disorders seen in primary care. Anxiety disorders are associated with physical symptoms, such as palpitations, shortness of breath, and dizziness. Brief screening measures applied in primary care, such as the Generalized Anxiety Disorder–7, can aid in diagnosis of anxiety disorders (sensitivity, 57.6% to 93.9%; specificity, 61% to 97%). Providing information about symptoms, diagnosis, and evidence-based treatments is a first step in helping patients with anxiety. First-line treatments include pharmacotherapy and psychotherapy. Selective serotonin reuptake inhibitors (SSRIs, eg, sertraline) and serotonin-norepinephrine reuptake inhibitors (SNRIs, eg, venlafaxine extended release) remain first-line pharmacotherapy for generalized anxiety disorder, social anxiety disorder, and panic disorder. Meta-analyses suggest that SSRIs and SNRIs are associated with small to medium effect sizes compared with placebo (eg, generalized anxiety disorder: standardized mean difference [SMD], −0.55 [95% CI, −0.64 to −0.46]; social anxiety disorder: SMD, −0.67 [95% CI, −0.76 to −0.58]; panic disorder: SMD, −0.30 [95% CI, −0.37 to −0.23]). Cognitive behavioral therapy is the psychotherapy with the most evidence of efficacy for anxiety disorders compared with psychological or pill placebo (eg, generalized anxiety disorder: Hedges g = 1.01 [large effect size] [95% CI, 0.44 to 1.57]; social anxiety disorder: Hedges g = 0.41 [small to medium effect] [95% CI, 0.25 to 0.57]; panic disorder: Hedges g = 0.39 [small to medium effect[ [95% CI, 0.12 to 0.65]), including in primary care. When selecting treatment, clinicians should consider patient preference, current and prior treatments, medical and psychiatric comorbid illnesses, age, sex, and reproductive planning, as well as cost and access to care.
Conclusions and Relevance Anxiety disorders affect approximately 34% of adults during their lifetime in the US and are associated with significant distress and impairment. First-line treatments for anxiety disorders include cognitive behavioral therapy, SSRIs such as sertraline, and SNRIs such as venlafaxine extended release.
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Szuhany KL , Simon NM. Anxiety Disorders : A Review . JAMA. 2022;328(24):2431–2445. doi:10.1001/jama.2022.22744
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- Anxiety and Trauma Disorders
- Extended Amygdala
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COMMENTS
Anxiety disorders are the most common type of mental illness in Europe, with a 12-month prevalence of 14% among persons aged 14 to 65. Their onset is usually in adolescence or early adulthood. The affected patients often develop further mental or somatic illnesses (sequential comorbidity).
Eligible articles were systematic reviews (with or without meta-analysis), which evaluated treatment effectiveness of either nonbiological or biological interventions for anxiety disorders. Retrieved articles were summarized as an overview. We assessed methods, quality of evidence, and risk of bias of the articles.
Core features include excessive fear and anxiety or avoidance of perceived threats that are persistent and impairing. Anxiety disorders involve dysfunction in brain circuits that respond to danger. Risk for anxiety disorders is influenced by genetic factors, environmental factors, and their epigenetic relations.
Anxiety disorders are the most prevalent psychiatric disorders. There is a high comorbidity between anxiety (especially generalized anxiety disorders or panic disorders) and depressive disorders or between anxiety disorders, which renders treatment more complex.
This review summarizes current evidence on the diagnosis and treatment of generalized anxiety disorder, social anxiety disorder, and panic disorder with.
Introduction. Anxiety disorders (Fig. 1), including separation anxiety disorder, selective mutism, specific phobia, social anxiety disorder, panic disorder, agoraphobia and...
Anxiety is characterized by excessive uneasiness, apprehension or dread. It can be generalized or be directed towards specific, usually imagined or exaggerated threat. Latest Research and...
Journal of Anxiety Disorders is an interdisciplinary journal that publishes research papers dealing with all aspects of anxiety disorders for all age groups (child, adolescent, adult and geriatric). Manuscripts that focus on disorders formerly categorized as anxiety disorders (obsessive-compulsive …. View full aims & scope.
Anxiety disorders are the most prevalent psychiatric disorders. There is a high comorbidity between anxiety (especially generalized anxiety disorders or panic disorders) and depressive disorders or between anxiety disorders, which renders treatment more complex.
In sum, two decades of neuroimaging research demonstrate that anxiety disorders are associated with exaggerated reactivity to emotional challenges in regions of the amygdala, BST, periaqueductal gray, midcingulate cortex, and anterior insula.