Bipolar effective disorder Flashcards
What is bipolar affective disorder?
chronic episodic mood disorder, characterised by at least one episode of mania (or hypomania) and a further episode of mania or depression
Why does the term bipolar also include those who at the time of diagnosis have suffered only manic episodes?
all cases of mania will eventually develop depression
What 2 types of factors cause BAD?
biological + environmental factors
What are 4 types of factors (both biological and environmental) which may contribute to BAD?
- Monoamine hypothesis: elevated mood result of increased central monoamines (noradrenaline and serotonin)
- Dysfunction of the HPA axis
- Genetic: shows strong heritability, esp 1st degree relatives
- Stressful or significant life events
What are 3 types of biological factors which may contribute to the development of BAD?
- Genetic
- Neurochemical: increased dopamine and serotonin
- Endocrine: increased cortisol, aldosterone and thyroid hormone
How is dysfunction of the HPA axis thought to contribute to the development of BAD?
abnormal secretion of cortisol, as found in unipolar depression, and dysfunction of the hypothalamic pituitary thyroid axis may contribute to BPAD
What are 4 types of environmental factors which may contribute to the development of BPAD?
- Adverse life events
- Exams
- Post-partum period
- Loss of loved one
What is the lifetime risk of developing BPAD?
1-3%
What is the mean age of onset of BPAD?
19 years
In which ethnic groups is BPAD higher?
black and other minority ethnic groups
What is the male: female ratio affected by BPAD?
1:1
What are 6 risk factors for the development of BPAD?
- Age in early 20s
- Anxiety disorders
- After depression
- Strong family history
- Substance misuse
- Stressful life events
What are 3 levels of severity of mania?
- Hypomania
- Mania without psychosis
- Mani with psychosis
What is the mnemonic for remembering the symptoms of mania and what do they stand for?
I DIG FASTER
- I: irritability
- D: distractibility/ disinhibited (sexual, social, spending)
- I: insight impaired/ increased libido
- G: grandiose delusions
- F: flight of ideas
- A: activity/ appetite increased
- T: talkative - pressure of speech
- E: elevated mood/ energy increased
- R: reduced concentration/Reckless behaviour and spending
What is the definition of hypomania? 4 aspects
- mildly elevated mood or irritable mood present for ≥4 days
- symptoms of mania are to lesser extent than true mania
- considerable interference with work and social life but not severe disruption
- partial insight may be preserved
What are 4 aspects of the definition of true mania, without psychosis?
- Symptoms present for >1 week
- Complete disruption of work and social activities
- May have grandiose ideas and excessive spending could lead to debts
- There may be sexual disinhibition and reduced sleep may lead to exhaustion
What are 4 aspects of the definition of mania with psychosis?
- Severely elevated or suspicious mood
- With the addition of psychotic features such as grandiose or persecutory delusions and auditory hallucinations that are mood congruent
- Patient may show signs of aggression
What are the 3 classifications of bipolar affective disorder?
- Bipolar I: involves periods of severe mood episodes from mania to depression
- Bipolar II: milder form of mood elevation, involving milder episodes of hypomania that alternate wtih periods of severe depression
- Rapid cycling: more than 4 mood swings in a 12-month period with no intervening asymptomatic periods. Poor prognosis
What is the ICD-10 criteria for mania?
requires 3/9 symptoms to be present:
- grandiosity/ inflated self-esteem
- Decreased sleep
- Pressure of speech
- Flight of ideas
- Distractibility
- Psychomotor agitation (restlessness)
- Reckless behaviour e.g. spending sprees, reckless driving
- Loss of social inhibitions (leading to inappropriate behaviour)
- Marked sexual energy
What are the ICD-10 criteria for bipolar affective disorder?
at least 2 episodes in which a person’s mood and activity levels are significantly disturbed - one of which MUST be mania or hypomania
What are the 5 states that the ICD-10 divides bipolar disorder into?
- Currently hypomani
- Currently manic
- Currently depressed
- Mixed disorder
- In remission