Psychiatry Flashcards
(207 cards)
What is the mnemonic used for depression?
DEADSWAMPS
Depressed mood
Energy loss
Anhedonia
Death thoughts – suicide
Sleep disturbance
Worthlessness, guilty / Weight gain
Appetite loss
Memory / Mental decrease (concentration and thinking)
Psychomotor agitation / retardation
The first three are major symptoms
What is the definition of mild, moderate and severe depression?
Mild Depression:
At least two of the core symptoms plus other symptoms total is greater than or equal to 4
Moderate Depression:
At least two of the core symptoms plus other symptoms total is greater than or equal to 6
For mild or moderate you can subclassify with or without somatic syndrome.
Severe depression:
All three core symptoms plus other symptoms. Total is greater than or equal to 8
For severe depression you can subclasify as having/not having psychotic symptoms
More than one episode is a recurrent depressive disorder
What are the ICD 10 features of somatic syndrome?
Somatic Syndrome (ICD - 10):
Anhedonia
Apathy
- 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
What are example mesurement tools for depression?
Examples of measurement tools:
HADS (hospital anxiety and depression scale)
SCID (structured clinical interview for DSM disorders)
PHQ - 9 can determine the level of severity of depression, used in screening purposes, diagnosing purposes as well as monitoring. It incorporates the DSM depression criteria.
What is treatment for depression?
Mild depression: - Monitoring, self - help, cognitive behavioural therapy, exercise rather than medication
Moderate: antidepressant medication (SSRIs are first line), CBT
Severe without psychotic features:
antidepressant medication plus CBT
Severe with psychotic features: anti-depressant plus antipsychotic medication
Treatment refractory: switch anti-depressant or augment with lithium / antipsychotic.
What are the different types of anti-depressatns?
SSRIs
TCAs
Monamine oxidase inhibitors
Others
What psychological treatments are available for Depression?
Psychological treatments:
CBT
Behavioural activation (this is when patients take part in activities they have been avoiding).
TRAC - trigger response, alternate coping response - used to assess the effectiveness of coping strategies.
IPT - The aim of IPT is to help the patient to improve interpersonal and intrapersonal communication skills within relationships and to develop social support network with realistic expectations to deal with the crises precipitated in distress.
Motivational interviewing - It is a directive, client-centered counseling style for eliciting behavior change by helping clients to explore and resolve ambivalence.
Individual dynamic psychotherapy
Family therapy
What is the advice when switching antidepressant medication?
Switching antidepressants: when switching
- Initially switch to a different SSRI or a better tolerated newer generation antidepressant
- Subsequently to another class that may be less well tolerated e.g. TCA, venlafaxine or MAOI (MAOI specialist initiated only)
- Combining and augmentation: Using combinations should only normally be started in primary care in consultation with a psychiatrist
- Consider combining or augmenting an antidepressant with lithium, an antipsychotic (e.g. quetiapine, aripriprazole etc) or another antidepressant such as mirtazapine
Stopping or reducing antidepressants
Advise re risk of discontinuation symptoms and gradually reduce the dose, normally over a 4 week period
SO basically:
- Try a different SSRI
- Try somehthing else
- Combine or augment with the likes of anti-psychotics, lithium or another antidepressant sich as mirtazapine
What are physical treatments for depression
ECT
Psychosurgery
DBS (deep brain stimulation)
VNS (vagus nerve stimulation)
What is differential diagnosis for depression?
- Normal reaction to life event
- SAD
- Dysthymia
- Cyclothymia (this is essentially bipolar disorder)
- Bipolar
- Stroke, tumour, dementia
- Hypothyroidism, Addison’s, Hyperparathyroidism
- Infections – Influenza, infectious mononucleosis, hepatitis, HIV/AIDS
- Drugs
What are negative associations of depression?
Employment
Financial independance
Stable marriage
What are risk factors for depression?
Lower educational attainment
Excess of adverse life events
Depression in first degree relatives
What are the features of mania?
Disinhibition
Grandiosity
Alteration of senses
Extravagant spending
Can be irritable rather than elated
Flight of ideas
HAS TO BE AT LEAST A WEEK LONG
MUST DISRUPT SOCIAL ACTIVITIES MORE OR LESS COMPLETELY
What are the different classifications of mania?
Hypomania
Mania without psychotic symptoms
Mania with psychotic symptoms
Other manic eposides
Manic episode unspecified
What are measuring tools for mania?
SCID
SCAN
Young mania rating scale
What is the definition of hypomania?
At least 4 of the following symptoms:
Duration of at least 4 days
Increased mood
Increased energy
Increased sociability
Increased talkativeness
Increased libido, overfamiliarity
Decreased sleep
What is the treatment for mania?
Antipsychotics
- Olanzapine
- Risperidone
- Quetiapine
Mood Stabilisers
- Sodium Valproate
- Lamotrigene
- Carbamazepine
Lithium
ECT
What are the tests required to carry out when someone is on lithium?
If patient is on lithium then there should be a 3 monthly lithium blood test. There should also be a 6 monthly thyroid/kidney function test.
What is the differential diagnosis for mania?
Differential DX:
Schizoaffective disorder
Schizophrenia
Cyclothymia
ADHD
Drugs and alcohol
Stroke
MS
Tumour
Epilepsy
AIDS
Neurosyphilis
Cushings
Hyperthyroidism
What is the diagnosis of bipolar disorder
ICD - 10
- 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.)
Passmedicine says that there are two types of bipolar disorder:
type I disorder: mania and depression (most common)
type II disorder: hypomania and depression
What is the treatment for bipolar disorder?
Acute phase:
stop any antidepressants (this is to treat the mania)
start an antipsychotic (osmosis says that the antipsychotics should be atypical)
Consider adding a short-term benzodiazepine
If response is inadequate consider combining an antipsychotic with lithium/valproate.
Maintenance:
lithium/olanzapine/valproate, quetiepine for at least 2 years
Anti-depressants / cognitive behavioural therapy (CBT) for intercurrent episodes of depression, fluoxetine is the antidepressant of choice
Combine mood stabilisers for refractory / rapid cycling (at least 4 episodes in a year)
Mood stabilisers include lithium, anticonvulsants (valproic acid, carbemazepine, lamotrigine)
In wernicke’s - korsakoff syndrome, what do the two complonents mean?
Acute phase = wernicke’s encephalopathy
Korsakoff syndrome = chronic syndrome
What is the triad of symptoms in wernicke’s korsakoff syndrome?
Wernickes Encephalopathy:
Triad of symptoms:
Ophthalmoplegia (nystagmus and paralysis of the lateral rectus muscle)
Changes in mental state (confusion)
Unsteady stance and gait (ataxia)
Also may include:
Stupor
Low blood pressure
Tachycardia
What are the features of korsakoff syndrome?
Alcoholic korsakoff syndrome:
Severe memory impairment without any dysfunction in intellectual abilities
Variable presentation of retrograde amnesia
Anterograde amnesia
Aphasia
Apraxia
Agnosia
A defecit in executive functions
CONFABULATION
Key features used to make the clinical diagnosis:
- Ataxia
Nystagmus
Anterograde and retrograde amnesia and confabulation