Depression Flashcards
(33 cards)
Core ICD10 symptoms of depression? (3)
Low mood (worse on mornings) Anhedonia Tiredness + fatigue
Other symptoms include? (7)
Reduced concentration Reduced libido Reduced confidence Reduced appetite Sleep disturbances Suicidal thoughts Guilt
Define mild depression?
2 core symptoms + 2 other symptoms
Define Moderate depression
2 core symptoms + 3 other symptoms
Define Severe depression
3 core symptoms + 4 other symptoms
How long does the symptoms have to last be defined as depression?
> 2 weeks and not secondary to the effects of drug/alcohol misuse, organic illness or bereavement
In primary care what is used to screen for depression?
PHQ-9 (Patient Health Questionnaire)
1st line Biological Mx of depression? (1)
SSRI e.g. fluoxetine, citalopram
How many weeks for review if >30 yrs or increase suicide risk?
1 week
When should dose of SSRI being increased or
changed? And why?
After 4-6 weeks
Initial increased motivation until clinical improvement usually after 4-6 weeks. Therefore importance of suicide risk assessment.
Review patients every …. weeks after starting A/D Rx?
1-2 weeks
2nd line drugs include? (3)
SNRI - Venlafaxine
TCA - Amitryptaline, Lofepramine
MAO-I
Which two drug should you NEVER combine?
SSRI + TCA/MAO-II
3rd line drugs? (2)
Lithium + NASSA
4th line?
ECT (severe refractory depression)
What is the Monoamine Theory of depression?
Depression is associated with: NAd (noradrenaline) +5HT (serotonin) (Monoamines)
Mechanism of A/D?
Antidepressants rapidly block NAd and 5HT uptake but clinical improvement takes 4-6 weeks
Side effects of A/D? (5)
Can't see (blurred vision), can't pee (urinary retention), can't spit (dry mouth), can't shit (constipation) GI disturbances Sexual dysfunction/loss of libido Drowsy Weight gain QTc prolongation
Common complications? (3)
Serotonin syndrome - increased 5HT (occurs in SSRI’s, TCA, MAOI, St Johns Wart, Ecstasy)
Symptoms: fever, restless, tremor arrhythmias, confusion, seizures,
Hyponatraemia - anorexia, nausea, malaise, headache, confusion, seizures (all A/D but SSRI’s the worst)
Suicide
Which A/D is the best/worst if hyponatraemia present ?
Main S/E of this drug?
Best: Mirtazapine (NASSA)
Worst: SSRI
Weight gain
How to prevent treatment withdrawal?
Wean off slowly (4 weeks)
What is the high risk A/D’s for this? (2)
Paroxetine (SSRI) and Venlafaxine (SNRI)
How does ECT work?
Induces a seizure (under GA)
How responsive is it?
70-80%