*Treatments for Anxiety Disorders

Anxiety Disorders

Overview

  • Definition: Anxiety disorders are recognized as one of the most common mental illnesses in Canada.

  • Prevalence:

    • Cumulatively affects approximately 10% of the overall population.

    • More prevalent in women compared to men.

  • Onset Age:

    • Panic Disorder and Generalized Anxiety Disorder (GAD) typically onset during early adult life.

    • Phobias and Social Anxiety usually begin between the ages of 10-15.

  • Course Characteristics:

    • Panic Disorder (PD) has a tendency for relapse.

    • Other anxiety disorders often follow a chronic course leading to ongoing symptoms.

Comorbidity

  • High levels of comorbidity observed, particularly with:

    • Mood Disorders

    • Substance Abuse Disorders (notably in men with Panic Disorder)

Treatment Approaches

  • Overall Goal:

    • To reduce symptoms, enhance quality of life, and prevent relapse.

  • Modalities: Best outcomes achieved through a multimodal approach.

Pharmacological Treatments

  1. Selective Serotonin Reuptake Inhibitors (SSRIs):

    • Function: Increase serotonin levels in the synapse.

    • Effects: Reduce hyperactivity of the amygdala and subsequently decrease anxiety.

    • Side Effects: May include nausea, dizziness, and other physical symptoms.

  2. Selective Norepinephrine Reuptake Inhibitors (SNRIs):

    • Function and effects are similar to SSRIs.

  3. Benzodiazepines:

    • Mechanism: Increase the effect of GABA, promoting relaxation and reducing anxiety.

    • Side Effects: Impair cognitive and motor functioning, potential for dependence; generally more suited for short-term use.

Psychological Treatments

  • Cognitive Behavioral Interventions (CBI):

    • Most effective for anxiety disorders.

    • Involves processing threatening information and the anxiety associated with it.

    • Focus on acquiring relaxation techniques to alleviate muscle tension.

    • Re-evaluation of the utility of worrying is emphasized.

    • CBT has been shown to enhance GABA signaling.

Treatment Specifics

Panic Disorder Treatments

  • Exposure Treatment:

    • Patients are gradually placed in conditions where they face feared situations, aiming to learn that there is nothing to fear.

  • Anxiety-reducing coping mechanisms: Techniques include relaxation and breathing exercises.

  • Panic Control Treatment (PCT):

    • Exposes patients to a cluster of interoceptive sensations reminiscent of their panic attacks.

    • Studies suggest that long-term effects of these treatments are more effective compared to pharmaceutical options.

Treatment for Specific Phobia

  • Exposure-based Exercises:

    • A single session of 2-6 hours can often suffice to effectively treat specific phobias.

    • These exercises aim to rewire the brain, resulting in reduced activation in areas such as the amygdala, insula, and cingulate cortex, while increasing control through prefrontal regions.

  • New Advancements:

    • Virtual Reality: Innovative approach, particularly effective for phobias related to flying, heights, or driving.

Treatment for Social Anxiety Disorder

  • Cognitive Behavioral Group Therapy:

    • Involves role-playing socially phobic situations in front of peers, with a therapist guiding cognitive therapy to change perceptions of danger.

  • Social Mishap Exposure:

    • Helps individuals confront the real consequences of feared social interactions.

  • Family-based Treatment:

    • Involving parents and family members, these treatments often perform better than individual therapies.