Generalised Anxiety Disorder Flashcards

1
Q

ESSENCE

A

Excessive worry about everyday events causing functional impairment/disress

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2
Q

EPIDEMIOLOGY

Lifetime prevalence

A

5.7%

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3
Q

EPIDEMIOLOGY

Male or female greater

A

F>M

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4
Q

AETIOLOGY

General factors

A
  • Triple vulnerability model
    • Genetic
    • Neurobiological
    • Psychological
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5
Q

AETIOLOGY

Neurobiological

A
  • ?Norepinephrine systems
    • Diminished autonomic responsiveness (?down regulation of a2 receptors)
    • HPA axis dysfunction (loss of regulatory control of cortisol
    • Sustained activated of amygdala and stria terminalis by CRF due to stress
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6
Q

AETIOLOGY

Psychological

A
  • Psychological vulnerability
    • Diminished sense of control due to trauma or insecure attachment to primary caregivers
    • Parenting - overprotective or lacking warmth
    • Stressful life events such as trauma or dysfunctional martial/family relationship
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7
Q

DIAGNOSTIC CRITERIA

A
  • At least 4 (with 1 from automatic arousal) present most days for at least 6 months
    • Symptoms autonomic arousal
    • Physical symptoms
    • Mental state symptoms
    • General symptoms
    • Symptoms of tension
    • Exaggerated responses to minor surprises
    • Concentration difficulties, irritability of difficulty getting to sleep due to worrying
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8
Q

DIAGNOSTIC CRITERIA

Examples of autonomic arousal

A
  • Palpitations
  • Tachycardia
  • Sweating
  • Trembling
  • Dry mouth
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9
Q

DIAGNOSTIC CRITERIA

Examples of physical symptoms

A
  • Breathing difficulties
  • Choking sensation
  • Chest pain/discomfort
  • Nausea/abdominal distress
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10
Q

DIAGNOSTIC CRITERIA

Mental state symptoms

A
  • Feeling dizzy, unsteady, light headed or faint
  • Derealisation/depersonalisation
  • Fear of losing control
  • ‘Going crazy’
  • Passing out
  • Dying
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11
Q

DIAGNOSTIC CRITERIA

General symptoms

A
  • Hot flushes/cold chills
  • Numbness or tingling
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12
Q

DIAGNOSTIC CRITERIA

Symptoms of tension

A
  • Muscle tension/aches and pain
  • Restlessness/inability to relax
  • Feeling on edge or mentally tense
  • Sensation of lump in throat or difficulty swallowing
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13
Q

DIFFERENTIAL DIAGNOSIS

A
  • Normal worries
  • Depression
  • Mixed anxiety/depression
  • Other anxiety disorders
  • Drug and alcohol problems
  • Side effects of medication
  • Medical conditions
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14
Q

DIFFERENTIAL DIAGNOSIS

Medical conditions

A
  • CVS
    • Arrhythmias, IHD, mitral valve disease, cardiac failure
  • Resp
    • Asthma, COPD, HVS, PE, hypoxia
  • Neuro
    • TLE, vestibular nerve disease
  • Endocrine
    • Hyperthyroidism, hypoparathyroidism, hypoglycaemia, phaeochromocytoma
  • Misc
    • Anaemia, SLE, carcinoid tumour
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15
Q

DIFFERENTIAL DIAGNOSIS

Medication side effects

A
  • CVS
    • Antihypertensives, anti-arrhythmics
  • Resp
    • Bronchodilators, a/B-adrenergic agonists
  • CNS
    • Anticholinergics, anticonvulsants, anti Parkinsonian agents, antidepressants, antipsychotics, withdrawl from benzodiazepams
  • Misc
    • Levothyroxine, NSAIDs, antibiotics, chemotherapy
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16
Q

MANAGEMENT

General strategy

A
  • Psychological
    • CBT combining behavioural methods and cognitive methods
  • Pharmacological - directed towards symptoms
    • Psychic symptoms - buspirone
    • Somatic symptoms - BDZs (lorazepam, diazepam)
    • Depressive symptoms - Trazodone, SNRIs, SSRIs
17
Q

MANAGEMENT

Guidelines

A
  • 1) CBT or SSRI/SNRI/atypical antidepressant
  • 2) TCA or antipsychotic or benzodiazepine
  • 3) Switch to alternative or combination therapy
  • Adjuct
    • Applied relaxation, mindfullness, attention/perception modification/sleep hygiene education, exercise, self help
18
Q

PROGNOSIS

Remission rate at 3 and 6 years

A

3 years - 30%

6 years - 68%

19
Q

PROGNOSIS

% with severe persistent impairment

A

9%

20
Q

MANAGEMENT

SSRIs licensed

A
  • Escitalopram
  • Paroxetine
21
Q

MANAGEMENT

SNRIs licensed

A
  • Duloxetine
  • Venlafaxine