Mood disorders Flashcards

(55 cards)

1
Q

what are the 3 main symptoms depressive illness, and for how long should the patient be experiencing them

A

low mood, anhedonia, reduced energy. at least 2 of these for at least 2 weeks

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2
Q

features depression

A

decreased concentration, low self esteem, ideas of guilt and self worth, hopelessness, thoughts self harm, decr sleep or appetite

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3
Q

what is common in depression with regards to pattern of the depression

A

diurnal variation- worse on waking. early morning waking

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4
Q

what are the features of psychotic depression

A

delusions- nihilistic, hallucinations- 2nd person

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5
Q

what differentiates psychosis in schizophrenia and depression

A

the thought content in depression is mood congruent

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6
Q

differentials for depression

A

normal sadness to bereavement, schizophrenia if psychotic, alcohol/drug withdrawal

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7
Q

aetiology of depression

A

genetics, parental loss, early childhood, abuse, alcohol/drug use, severe physical illness, life event, deprivation, lack of relationship

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8
Q

neurochemical changes in depression

A

decreased monoamines- noradrenaline and serotonin.

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9
Q

what hormone is high in depression

A

cortisol

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10
Q

what system isn’t functioning well in depression

A

limbic system and prefrontal cortex

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11
Q

what guides the severity of the depression

A

no of symptoms, severity of symptoms, degree of associated distress, interference with daily life

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12
Q

management mild depression

A

self help groups, physical activity sessions, computerised CBT

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13
Q

management moderate depression

A

add antidepressant and individual CBT

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14
Q

management severe depression

A

ECT

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15
Q

how long to continue antidepressants for

A

6 months- reduced relapse

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16
Q

what can you give for resistant depression

A

combine (augment) antidepressant with lithium, atypical antipsychotic or another anti depressant

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17
Q

which antidepressant is the only one licensed for use in the UK for adolescents

A

fluoxetine

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18
Q

what emergency can you get from antidepressants

A

serotonin syndrome

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19
Q

what is serotonin syndrome

A

increased serotonin- agitation,confusion, tremor, tachycardia, hypertension

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20
Q

how do SSRIs work

A

selective serotonin reuptake inhibitor. inhibit the reuptake of serotonin

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21
Q

examples of SSRIs

A

citalopram, fluoxetine, setraline

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22
Q

when should you give SSRIs

A

once a day- in the morning

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23
Q

side effects SSRIs

A

N&V, headache, diarrhoea, dry mouth, insomnia. linked to suicidality

24
Q

what is the syndrome you get when stopping SSRIs

A

discontinuity syndrome- shivery, dizzy, anxiety, headache, nausea, ‘electric shocks’

25
how long should you give antidepressants for
6 months after improvement of symptoms
26
what is SNRI
serotonin- noradrenaline reuptake inhibitor
27
example of SNRI
venlafaxine
28
how does venlafaxine work
block serotonin and NA reuptake. less sedation and anti muscarinic side effects. hypertension so don't give to those prone to arrhythmia or hypertension
29
what is NSSA and example
noradrenergic and specific serotonin antidepressant. mirtazapine
30
how do MAOIs work
inhibit monoxidase A and B so increasing levels NA, dopamine, serotonin
31
TCAs examples
nortryptiline, amytryptilline, imipramine, clomipramine, doxepin
32
how do TCAs work
potentiate action of monoamines inhibiting their uptake into nerve terminals. block reuptake of both serotonin and NA
33
side effects TCAs
dry mouth, constipation tremor, QT prolongation, arrhythmias, convulsants, weight gain, sedation, mania
34
what is Becks cognitive triad
thought content often contains pessimistic thoughts- the self, the world, the future
35
how long should you treat the episode at full dose
4-6 weeks. takes about 2 weeks to start working so don't change it too soon
36
what muscle relaxant is used in ECT
suxamethonium- to relax muscles and so intensity of movement during seizure is reduced
37
contraindications to ECT
absolute-incr ICP, prev MI (as HR and BP incr), aneurysm. relative- any medical problem
38
indications for ECT
depression- severe life threateining resistant; catatonia; mania; schizophrenia ?
39
how many ECTs is the usual course
12 but 7-9 usually needed to achieve remission
40
side effects ECT
mortality low, muscle aches, confusion, short term memory loss.
41
what drugs can be used to reduce relapse after ECT
nortryptilline and lithium
42
lifetime risk depression
10-20%, rates almost doubled in women
43
what can the episodes be in bipolar
depressive, manic, hypomanic, mixed
44
what is the difference between manic and hypomanic
hypomanic is less severe and no psychotic symptoms
45
what is the ICD10 definition diagnosing bipolar
at least 2 episodes including one manic/hypomanic
46
what is the difference between bipolar type 1 and type 2
type 1- manic, type 2-hypomanic
47
what is cyclothymic disorder
mod fluctuations lasting at least 2 years, with depressive and hypomanic episodes but not enough to meet diagnostic
48
features manic/hypomanic episode
elated or irritable. incr psychomotor activity, incr optimism, rapid thinking and speech, decr social inhibition, incr self esteem, mania only- mood congruent delusions
49
ddx mania
substance abuse, endocrine, schizophrenia, schioaffective, personality disorders
50
prevalence bipolar 1 an 2
1% 1, 1.5-2% 2
51
when is peak age of onset in bipolar
20s
52
aetiology
predisposing- genetics. precipitating- stress, life events, sleep deprivation, illict drugs, childbirth, hyperthyroidism, steroids, epilepsy
53
management
anti manic drugs- lithium, valproate, carbamazepine, lamotrigine. atypical antipsychotics- olanzapine etc
54
psychological treatment bipolar
focus on depressive symptoms, problem solving, promoting social functioning, education
55
prognosis
90% recurrence after single episode, worse prognosis if rapid cycling, better if type 2