Anxiety Disorders




Risk




  • •

    Lifetime prevalence approximately 30% in USA


  • •

    Gender: Female (2× more likely compared with male)


  • •

    Environmental: Traumatic or stressful events


  • •

    Age: Often develop in childhood and early adulthood; however, may occur any time after a stressful event


  • •

    Medical conditions: Chronic mental or physical illness


  • •

    Genetics: Family psychiatric history





Perioperative Risks




  • •

    Generalized anxiety disorder leads to chronic autonomic hyperactivity with increased risks for CAD and Htn.


  • •

    Uncontrolled anxiety and fear may predispose pts to greater risk for acute postop pain and postop N/V.


  • •

    Increased risk of periop complications due to impaired response to stress.





Perioperative Risks




  • •

    Generalized anxiety disorder leads to chronic autonomic hyperactivity with increased risks for CAD and Htn.


  • •

    Uncontrolled anxiety and fear may predispose pts to greater risk for acute postop pain and postop N/V.


  • •

    Increased risk of periop complications due to impaired response to stress.





Worry About




  • •

    Inadequately treated anxiety disorders affecting pt’s decision-making and communication capacities, which may complicate medical courses


  • •

    Altered drug anesthetic requirements and drug metabolisms associated with psychiatric medications


  • •

    Systemic side effects from psychiatric medications


  • •

    Potential medication interactions with anesthetics


  • •

    Signs/symptoms may overlap with other medical conditions (e.g., hyperparathyroidism) and drug-induced causes (e.g., alcohol, caffeine, nicotine, withdrawal), which could be life-threatening.





Overview




  • •

    Types



    • •

      Generalized anxiety disorder


    • •

      Panic disorder


    • •

      Social anxiety disorder


    • •

      Specific phobias


    • •

      PTSD


    • •

      OCD



  • •

    Characterized by excessive apprehension, physical tension, physiologic symptoms, dissociative anxiety, and fear leading to significant distress or impairment


  • •

    Comorbidity with major depression (60%), other mental disorders, and substance abuse


  • •

    Associated with a variety of chronic medical conditions





Etiology




  • •

    Genetics: ↑ norepinephrine metabolites, ↓ GABA level, ↓ postsynaptic alpha-2 adrenergic receptor sensitivity, and ↓ benzodiazepine binding sites on platelets and lymphocytes; altered central processing involving amygdala and nuclei of basolateral complex that play central roles in fear and anxiety responses


  • •

    Stress


  • •

    Drugs: Caffeine, alcohol, nicotine, and withdrawals


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Sep 1, 2018 | Posted by in ANESTHESIA | Comments Off on Anxiety Disorders

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