Affective Disorders Flashcards

1
Q

what are mood disorders?

A
  • disorders of mental status and function where altered mood is the (or a) core feature
  • a term referring to states of depression and of elevated mood - mania
  • the commonest group of mental disorders
  • recognition and management forms a large component of activities for GPs, psychiatrists and clinical psychologists
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2
Q
  • disordered mood can present as a ______ problem or as a __________ of other disorder or illness, e.g. cancer, dementia, drug misuse or medical treatment (steroids)
  • often associated with ______ symptoms and _____ disorders. focus on the depressive disorders
A

primary

consequence

anxiety

anxiety

(If anxiety and depression then treat depression first as often the treatment of the depressive disorder helps with the anxiety symptoms)

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3
Q

what classification systems are avalible?

A
  • ICD-10 - International Classification of Disease 10th Edition – World Health Organisation
  • DSM-5 - Diagnostic and Statistical Manual of Mental Disorders 5th Edition – American Psychiatric Association
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4
Q

what is depression?

A

•Symptom - An emotion within the range of normal experience

  • describe a state of feeling, or mood, that can range from normal experience to severe, life-threatening illness
  • a ‘systemic’ symptom (complaint) with similarities to fatigue and pain
  • typically considered as a form of sadness, not just an absence of happiness
  • Syndrome - A constellation of symptoms and signs
  • Recurrent illness - Recurrent depressive disorder
  • A leading cause of disability worldwide
  • A common condition
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5
Q

When does depression become abnormal?

A

•no clear and convenient division. consensus problematic, often a matter of perspective

psychiatry places emphasis on:

  1. persistence of symptoms
  2. pervasiveness of symptoms
  3. degree of impairment
  4. presence of specific symptoms or signs
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6
Q

SYMPTOMS OF DEPRESSIVE ILLNESS occurs in 3 spheres which are what?

A

PSYCHOLOGICAL

PHYSICAL

SOCIAL

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7
Q

what are depressive symptoms that may be present in the psychological sphere?

A

CHANGE IN MOOD:

DEPRESSION - May find diurnal variation

ANXIETY - inability to relax

PERPLEXITY - particularly in Puerperal illness

ANHEDONIA

CHANGE IN THOUGHT CONTENT:

GUILT, HOPELESSNESS, WORTHLESSNESS

ANY NEUROTIC SYMPOMATOLOGY e.g.. Hypochondriasis, agoraphobia, obsessions & compulsions, panic attacks.

IDEAS OF REFERENCE

DELUSIONS AND HALLUCINATIONS if severe (psychotic symptoms)

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8
Q

what are depressive symptoms that may be present in the physical sphere?

A

CHANGE IN BODILY FUNCTION:

ENERGY - Fatigue

SLEEP

APPETITE - weight loss

LIBIDO

CONSTIPATION

PAIN

CHANGE IN PSYCHOMOTOR FUNCTIONING:

AGITATION (restlass anxiety)

RETARDATION (thoughts, speech and movement slowed)

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9
Q

what are depressive symptoms that may be present in the social sphere?

A

LOSS OF INTERESTS

IRRITABILITY

APATHY

WITHDRAWAL, LOSS OF CONFIDENCE, INDECISIVE

LOSS OF CONCENTRATION, REGISTRATION & MEMORY

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10
Q

what is stupor?

A

a state of extreme retardation in which consciousness is intact. The patient stops moving, speaking, eating and drinking. On recovery can describe clearly events which occurred whilst stuporose

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11
Q

Depression – ICD-10

what is their definition of depression?

A
  • Last for at least 2 weeks
  • No hypomanic or manic episodes in lifetime
  • Not attributable to psychoactive substance use or organic mental disorder (some symptoms of depression may overlap with those)
  • If psychotic symptoms or stupor then severe depression with psychotic symptoms - Need to exclude other psychotic illnesses first like schizophrenia
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12
Q

Depression – ICD-10 – Somatic Syndrome:

One diagnosis within the depressive disorders is somatic syndrome - what is classed as somatic syndrome?

A
  • Marked loss of interest or pleasure in activities that are normally pleasurable
  • lack of emotional reactions to events or activities that normally produce an emotional response
  • waking 2 hrs before the normal time
  • Depression worse in the morning
  • Objective evidence of psychomotor agitation or retardation
  • Marked loss of appetite
  • Weight loss (5%+ of body weight in a month)
  • Marked loss of libido
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13
Q

Mild Depression – ICD-10

what is classed as mild depression?

A

Left is core symptoms - at least 2 of 3

Then a further 2 form the list on the right

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14
Q

Moderate Depression – ICD-10

what is classed as moderate depression?

A

Same 2 lists

But 4 symptoms from the left

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15
Q

Severe Depression – ICD-10

what is classed as severe depression?

A

All 3 of core symptoms

Then at least 5 from right hand list

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16
Q

how common is Post-natal Depression?

A
  • increased risk of psychiatric admission in the 30 days following childbirth (risk for 24m)
  • 75% of women experience ‘blues’ within 2 weeks (passes quickly)
  • 10% of women develop MDD within 3-6 months
  • ‘puerperal psychosis’ - 1 in 500 deliveries with a risk of recurrence of 1-3 with subsequent deliveries
  • despite intuitive appeal - no association with hormonal changes has ever been demonstrated
17
Q

what are some differential diagnosis you should consider in a depressive disorder?

A
  • Normal reaction to life event
  • Seasonal Affective Disorder
  • Dysthymia
  • Cyclothymia
  • Bipolar
  • Stroke, tumour, dementia
  • Hypothyroidism, Addison’s, Hyperparathyroidism
  • Infections – Influenza, infectious mononucleosis, hepatitis, HIV/AIDS
  • Drugs
18
Q

what are the main evidence based treatments for depression?

A
  • Antidepressants - Selective Serotonin Reuptake Inhibitors (SSRIs), Tricyclic antidepressants (TCAs), Monamine Oxidase Inhibitors, Other antidepressants
  • Psychological Treatments - CBT, IPT, Individual dynamic psychotherapy, family therapy
  • Physical Treatments - ECT, Psychosurgery, DBS, VNS
19
Q

how do you measure and diagnose depressive disorders?

A
  • SCID (Structured Clinical Interview for DSM disorders)
  • SCAN (Schedules for Clinical Assessment in Neuropsychiatry) (aligns with ICD-10)
  • HDRS (Hamilton Depression Rating Scale)
  • BDI-II (Beck Depression Inventory II)
  • HADS (Hospital Anxiety and Depression Scale)
  • PHQ-9 (Patient Health Questionnaire 9)
20
Q

Summary:

  • Affective disorders are ________, _______ and ________
  • Depression is a leading cause of morbidity _______
  • All have effective __________
  • Depressive disorders can be classified and symptoms _________
A

common

recurrent

disabling

globally

treatments

measured

21
Q

what is mania?

A
  • a term to describe a state of feeling, or mood, that can range from near-normal experience to severe, life-threatening illness
  • rarely a symptom (unlike depression), often associated with grandiose ideas, disinhibition, loss of judgment; with similarities to the mental effects of stimulant drugs (AMPH, cocaine)
  • typically considered as a form of pathological, inappropriate elevated mood
22
Q

how do you classify someone as having mania?

A
  • no clear and convenient division. consensus problematic, often a matter of judgment of deviation from ‘normal self’
  • psychiatry places emphasis on: (Same 4 emphasis as depressive disorders)
  1. persistence of symptoms
  2. pervasiveness of symptoms
  3. degree of impairment
  4. presence of specific symptoms or signs
23
Q

how does ICD-10 classify hypomania?

A
  • Lesser degree of mania, no psychosis,
  • Mild elevation of mood for several days on end
  • Increased energy and activity, marked feeling of wellbeing
  • Increased sociability, talkativeness, overfamiliarity, increased sexual energy, decreased need for sleep
  • May be irritable
  • Concentration reduced, new interests, mild overspending
  • Not to the extent of severe disruption of work or social rejection
24
Q

how does ICD-10 classify mania (with or without psychosis)?

A
  • 1 Week, severe enough to disrupt ordinary work and social activities more or less completely
  • Elevated mood, increased energy, overactivity, pressure of speech (speak rapidly and difficult to follow), decreased need for sleep
  • Disinhibition (behaving in a way they wouldn’t normally)
  • Grandiosity (elevated sense of yourself)
  • Alteration of senses
  • Extravagant spending
  • Can be irritable rather than elated
25
Q

whata re some differential diagnosis of hypomania and mania?

A

Psychiatric:

  • Mixed affective state
  • Schizoaffective disorder
  • Schizophrenia
  • Cyclothymia
  • ADHD
  • Drugs and Alcohol

Medical:

  • Stroke, MS, Tumour, epilepsy, AIDS, Neurosyphilis
  • Endocrine – Cushing’s, hyperthyroidism
  • SLE
26
Q

whata re some Tools to Measure
Symptoms?

A

SCID

SCAN

Young Mania Rating Scale (YMRS) - used to measure changes in severity of symptoms, track over time how someone’s symptoms are

27
Q

what treatment is avalible for mania?

A
  • Antipsychotics - Olanzapine, Risperidone, Quetiapine
  • Mood Stabilisers - Sodium Valproate, Lamotrigene, Carbamazepine
  • Lithium
  • ECT
28
Q

what are the different types of bipolar disorders?

A

Different phases, depending on if they are manic or hypomanic, weather they have psychotic symptoms or not, weather they are in a depressive episode with or without psychotic symptoms, can be in remission or not

29
Q

What is ICD-10 definition for the diagnosis of bipolar disorder?

A
  • Bipolar Affective Disorder consists of repeated (2+) episodes of depression and mania or hypomania.
  • If no mania or hypomania then diagnosis is recurrent depression.
  • If no depression the diagnosis is hypomania or bipolar disorder
  • (In DSM-5 a single episode of mania is sufficient to diagnose bipolar disorder.)

Very unlikely to have a one of manic episode without the other side

30
Q

what is the epidemiology of bipolar disorder?

A
  • lifetime prevalence rate (n per 100) : 0.7 - 1.6
  • point prevalence rate of mania : 0.08 - 0.8
  • industrialised nations = non-industrialised
  • rates for males = rates for females
  • mean age of onset = 21 (unusual >30)
  • some studies - 1/3 onset < 20
  • early onset (15-19) usually with positive FH
  • no differential prevalence according to income, occupation or educational status
  • prevalence consistently increased in 1st0 relatives (suggesting there is probably a genetic link)
  • other forms of depression also more common
31
Q

what is the epidemiology of depression?

A
  • lifetime prevalence rate (n per 100): 2.9 - 12
  • point prevalence rate of depression: 3.7 - 7.7
  • lifetime risk for less severe manifestations - 20
  • rates for females exceed rates for males - 2:1
  • highest risk from age 18-44 (median 25)
  • mean age of onset = 27
  • onset during old age is not unusual
  • no overall association with socioeconomic status
  • MDD less common in those employed
  • MDD less common in those financially independent (N.B. - direction of effect)
  • association with lower educational attainment
  • stable marriage negatively associated with MDD
  • increased risk in 1st0 relatives where proband has MDD (3x) or BPD (2x)
  • twin studies: MZ ‘v’ DZ = 27% ‘v’ 12%
  • onset of depression (first episode) associated with excess of adverse life events
  • ‘exit events’ - separations, losses
32
Q

what is the Clinical Course and Outcome of major depression?

A
  • typical episode lasts 4-6 months
  • 54% recovered at 26 weeks
  • 12% fail to recover
  • 80+% have further episodes (Depression recurrence is actually about 40%)
  • 15% die by suicide
33
Q

What is the Clinical Course and Outcome of Bipolar Disorder / Mania?

A
  • typical manic episode lasts 1-3 months
  • 60% recovered at 10 weeks
  • 5% fail to recover
  • 90% have further episodes
  • 1/3 have poor outcome
  • 1/3-1/4 have good outcome
  • 10% die by suicide
34
Q

Summary:

  • Affective disorders can be _______ and symptoms _________
  • Affective disorders are ________ and ________
  • Mania less common than _______ disorder (which again is less common than depressive disorders)
  • All have effective _________
A

classified

measured

recurrent

disabling

bipolar

treatments