Depression and insomnia Flashcards
What is mild depression?
Four symptoms
What is moderate depression?
Five to six symptoms
What is severe depression?
Seven or more symptoms with or without psychotic symptoms
How long should symptoms be present for in order to diagnose depression?
A month or more and every symptom should be present for most of every day
What are the two questions you should ask someone if you think they could be depressed?
During the last month, have you often been bothered by feeling down, depressed or hopeless?
During the last month, have you often been bothered by having little interest or pleasure in doing things?
Diagnosis of depression is performed using what?
ICD-10
What are the key symptoms of depression (ICD-10(?
Persistent sadness or low mood
Loss of interest and pleasure
Fatigue or low energy
What are the associated symptoms with depression?
Disturbed sleep Poor concentration and indecisiveness Low self confidence Poor or increased appetite Suicidal thoughts or acts Agitation or slowing of movement Guilt or self blame
What are the symptoms reported by at least 90% of people with depression?
Less enjoyment from usual activities Hopelessness Disappointment with self Irritability Difficulty sleeping
How many hours of sleep should a 15 year old have?
8 hours
How many hours of sleep should a 20 year old have?
7.5 hours
How many hours of sleep should a 40 year old have?
6.8 hours
How many hours of sleep should a 60 year old have?
6.3 hours
How many hours of sleep should a 80 year old have?
5.8 hours
How many weeks is short term insomnia?
Less than 4 weeks
How many weeks is long term insomnia?
More than 4 weeks
How long should you avoid caffeine, nicotine, and alcohol before going to bed? (to help with sleep)
6 hours
How long before bed should you avoid exercise for?
4 hours
What is the maximum length of time to treat short term insomnia pharmacologically?
3 weeks
What is preferred for insomnia treatment, short acting benzodiazepines or zopiclone?
There is no firm evidence of differences between the two
What is recommended for the long-term management of insomnia?
Pharmacological therapy is generally not recommended.
Referral to a specialist would be needed.
When should pharmacological treatment be used to treat depression?
For moderate or severe depression or mild with previous moderate/severe episode
What drug class is used first line to treat depression?
SSRIs
Which SSRIs should be considered first line to treat depression?
Sertraline and escitalopram
Which SSRI has a QT prolongation warning?
Escitalopram
What drug class is sertraline?
SSRI
What drug class is escitalopram?
SSRI
What drug class is Citalopram?
SSRI
What drug class is Fluoxetine?
SSRI
What drug class is Paroxetine?
SSRI
What antidepressant may be an option if sedation is desired or where hyponatraemia or an increased bleeding risk is a concern?
Mirtazepine
When should patients receiving pharmacological treatment for short term insomnia be reviewed?
after 2 weeks of treatment
When should people on mirtazapine be assessed for response?
4 weeks for adults or 6 weeks for over 65 year olds
For people who are not considered to be at increased risk of suicide, when should they normally be reviewed for their depression treatment?
2 weeks
For people who are younger than 30 years, when should you normally review them for their depression treatment?
1 week
What adverse effects should you monitor for when SSRIs are prescribed?
GI upset
Bleeding
Hyponatraemia
What period of time should an antidepressant be stopped over?
4 weeks
Does paroxetine have a long or short half life?
Short
Does fluoxetine have a long or short half life?
Long
How long should antidepressants be continued if it is the patients first episode?
6 months
How long should antidepressants be continued if it is the patient’s second episode?
2-3 years
How long should antidepressants be continued if it is the patient’s 3rd episode?
5 years
How long should antidepressants be continued if is it the person’s 4th or more episode?
Lifelong
What is transient insomnia?
Lasts a few days and is usually a result of a stressful situation
What is short term insomnia?
Lasts 1-4 weeks. Typically due to emotional trauma or physical illness
What is chronic insomnia?
Lasts more than one month
Benzodiazepine withdrawal syndrome can occur up to how long after discontinuation?
3 weeks
What are the predominant signs and symptoms of benzodiazepine withdrawal symptom?
Insomnia Anxiety Loss of appetite and body weight Tremor Perspiration Tinnitus Perceptual disturnaces
What are the common side effects of benzodiazepines?
Drowsiness, light headedness, confusion, ataxia and amnesia
What may be useful for people who fall asleep easily but then wake up in the early hours and find it difficult to fall back asleep?
Zaleplon
Are TCAs licensed for use as hypnotics?
No
Are sedative anthistamines licensed for short term use as hypnotics?
Yes
What are the three ‘Z’ drugs?
Zaleplon
Zolpidem
Zopiclone
If a person does not respond to one hypnotic drug, should another be prescribed?
No they should not be prescribed any of the others
The prevalance of insomnia is higher in who?
Women
Older people
What are the 6 hypnotics the BNF lists?
Nitrazepam Flunitrazepam Flurazepam Loprazolam Lormetazepam Temazepam
Which two hypnotics are blacklisted and cannot be prescribed on the NHS?
Flunitrazepam
Flurazepam
What two benzodiazepines are licensed for insomnia and anxiety?
diazepam
lorazepam
Which 4 benzodiazepines have a shorter duration of action?
Loprazolam
Lorazepam
Lormetazepam
Temazepam
Which benzodiazepines have a longer elimination half life?
Diazepam
Nitrazepam
Which benzodiazepine is associated with a greater risk of withdrawal symptoms?
Lorazepam
What is the elimination half life of zaleplon?
1 hour
What is the elimination half life of zolpidem?
2.5 hours
What is the elimination half life of zopiclone?
3.5-6.5 hours
What are the recommended pharmacological treatments of insomnia?
Short acting benzos: temazepam, loprazolam, lormetazepam
Non-benzos: Zopiclone, Zolpidem and Zaleplon
When is diazepam useful?
If insomnia is associated with daytime anxiety
Why are diazepam, nitrazepam and flurazepam generally not recommended for insomnia?
Their long half lives commonly gives rise to next day residual effects
NICE guidelines on depression use which criteria for diagnosis of depression?
DSM-4
According to DSM-4, which are the core features that should be present for depression to be considered?
A low or depressed mood
Loss of interest or pleasure in activities that the person would otherwise enjoy (anhedonia)
For a diagnosis of depression to be made against DSM-4 criteria, how many symptoms must have been present during the same two week period?
Five or more
According to DSM-4, how many symptoms are present for mild depression?
Few (if any) in excess of the five required to make the diagnosis
According to DSM-4, how many symptoms are present for severe depression?
Most symptoms should feature
When can antidepressants be used in people with mild depression?
When there is a previous history of moderate or severe depression.
Subthreshold symptoms have been present for 2 years.
Other interventions have been tried and have not been successful.
Why are SSRIs the mainstay of antidepressant treatment?
Because of their relatively tolerable side effect profile and safety in overdose compared with other antidepressant classes
What age range are most likely to be at risk of suicide in the first few weeks of antidepressant treatment?
adolescents- 25 years
How long should antidepressants be taken for before considering their full efficacy?
at least 4 weeks
Discontinuation symptoms usually occur within how many days of stopping antidepressants?
5 days
Which SSRI has an association with QT-interval prolongation?
Citalopram
Which is considered an antidepressant of choice in those with diabetes?
Fluoxetine
What are the side effects of fluoxetine?
Tremor, nausea, sweating and anxiety
Why might SSRIs increase bleeding times?
They cause decreased platelet activation
What antidepressant should be considered in people at risk of GI bleeding?
Mirtazapine
Which SSRIs are considered to have the lowest propensity for interaction via CYP450?
Citalopram
Sertraline
What medicines commonly cause or exacerbate depression?
Methyldopa, corticosteroids, benzodiazepines. levodopa, some anticonvulsants. isotretinoin, CCBs-nifedpine, lipophilic beta blockers- propranolol
Which antidepressant class are less dangerous if taken in overdose?
SSRIs
What should be avoided if taking MAOIs?
Tyramine containing foods
What are common SEs of TCAs?
antimuscarinic
histaminergic
cardiovascular
After how many weeks could a change to another antidepressant be warranted?
6 weeks
How many symptoms must be present for mild depression according to ICD-10?
4 and 2 must be key symptoms
How many symptoms must be present for moderate depression according to ICD-10?
6 but 2 must be key
How many symptoms must be present for severe depression according to ICD-10?
8 but at least 3 must be key
What are they key symptoms of depression according to ICD-10?
depressed mood
anhedonia
lack of energy
What was the SAD Personas scale developed for?
Identify people at risk of suicide
What does SAD PERSONAS stand for?
Sex Age Depression Previous attempt Ethanol abuse Rational thought loss Social supports lacking Organised plan No spouse Access to lethal means Sickness
What drug class is amitriptyline?
TCA
What drug class is dosulepin?
TCA
What drug class is lofepramine?
TCA
What are TCAs contra-indicated in?
Recent MI, arrhythmias, manic phase of bipolar disorder
When should TCAs be taken and why?
Bedtime because they have sedative properties
Which two TCAs have the least sedative profile?
Lofepramine
Nortriptyline
When should SSRIs be taken?
With or after food
Which are considered safer in overdose, TCAs or SSRIs?
SSRIs
What drug class is Moclobemide under?
Reversible inhibitor of monoamine oxidase type a
What drug class are venlafaxine and duloxetine?
serotonin and norepinephrine reuptake inhibitors
At low doses (75mg) what does venlafaxine mainly act on?
5-HT receptor
At medium doses (150mg) what does venlafaxine mainly act on?
NE reuptake
What are SNRIs contra-indicated in?
Patients with conditions associated with high risk of cardiac arrhythmia and uncontrolled hypertension
What drug class is mirtazepine?
Norepinephrine and specific serotonin antidepressant (NASSA)
What drug class is mirtazapine?
Norepinephrine reuptake inhibitor
How is SSRI treated?
Discontinuation of the SSRI, IV fluids, cyproheptadine, activiated charcoal, benzodiazepines
SSRIs should not be taken with NSAIDs, true or false?
True
What are the 3 depression questionnaires used in primary care?
PHQ-9
HADS
BDI-II
Section 2 of the mental health act allows compulsory admission for how long?
28 days
Section 3 of the mental health act allows compulsory admission for how long?
6 months
Section 4 of the mental health act allows compulsory admission for how long?
72 hours
Are SSRIs sedating or do they have more of a stimulant effect?
Stimulant