elearning on affective disorders Flashcards
burden of disease with depression?
2nd highest in world by 2020
highest in 15-34 yrs
lifetime prevalence depression?
20%
gender depression
2:1 females until >55
age of onset depression
late 20s
one distinctly female symptom of depression?
amenorrhoea
organic causes of low mood
- endocrine: adrenal, thyroid, hypoPituitarism
- infections - mono, syph, AIDS, encephalitis
- neuro - stroke, parkinsons, MS, tumour
- carcinoma - paraneoplastic syndrome
- meds: statins, interferon, isoretinoin
- .nutritional deficiencies
MI, cerebral ischaemia
importance of substance abuse?
must abstain from substance for 2 wks before can diagnose
cannot MSE in acute intoxication
ddx for mild depression?
normal
reactive eg bereavement/job loss
anxiety
BPAD
personality disorder
dysthymia
OCD
eating disorder
ddx when severe depression w/o psychotic sx
- prodromal psychotic illness
- dementia - normal sleep, no diurnal variation, gradual onset, focal neuro signs eg apraxia, agnosia, dysphasia
- severe/chronic OCD
if psychosis also think schizophrenia
what’s disulfiram?
used in aversive tx of alcohol abuse
combination therapy of antidepressants?
no not usually except maybe SSRI+ mirtazapine in refractory
response rate to antidepressants?
short term response rate 60%
eventual response unlikely if nothing at 4 wks
if not responding to meds in depression?
- try another class
- discuss compliance
- review comorbid substance use
- augment - lithium, combination tx
relapse rates antidepressant
continued tx for 6 months = 20-25% rate relapse, 50% on placebo
if symptoms reduce can reduce dose of antidepressant?
no, relapse rate will increase
what is ecstasy
extreme state of subjective transcendence of the outside world
what is elation
abnormal mood state without an infectious quality
what is euphoria
normal mood state with an infectious quality
biological symptom BPAD has in common with mania?
early morning waking often 1st sign
psychotic symptoms of BPAD
mood congruent - magical powers, deification, hallucinations
BPAD completed suicide risk
15-20%
what are the types of mood stabilisers?
- Lithium
- Anticonvulsants eg lamotrigine, valproate, carbamazepine
- antipsychotics - some have a mood stabilising effect eg olanzapine, quetiapine, risperidone
what medical condition can blunt the response to antidepressants and mood stabilisers?
hypothyroidism
can you use antidepressants in BPAD?
- yes in depressive episodes
2. low dose, watch for manic switch