Mental Health Flashcards
15%
List of mood and affective disorders
- Depressive Disorders
- Bipolar and Related Disorders
List of depressive disorders
a) Major Depressive Disorder
b) Persistent Depressive Disorder
(Dysthymia)
List of anxiety disorders
- GAD (most common)
- OCD
List of Bipolar and related disorders
a) Bipolar I Disorder
b) Bipolar II Disorder
c) Cyclothymic Disorder
Antidepressants classification
- First line: SSRIs Depression, anxiety
- Second line: Atypical Antidepressants (Depression, anxiety)
-SNRIs: 75% Depression & 25% anxiety, chronic pain
-TCA’s: Depression, anxiety disorder, chronic pain, migraine
- MAOIs: Atypical Depression
List of 1st line antidepressants
- Fluoxetine (safe in pregnancy)
- Sertraline (safe in pregnancy)
- Paroxetine (avoid in pregnancy)
- Citalopram (Prolongs Q-T - safe in pregnancy)
- Escitaprolam (safe in pregnancy)
- Fluvoxamine
List of 2nd line antidepressants
BMT
Atypical Antidepressants:
- Bupropion (less sexual side effects)
- Mirtazapine
- Trazodone (sedation & priapism)
List of SNRI’s
- Venlafaxine
- Desvenlafaxine
- Duloxetine
SNRI indications
For treating depression AS WELL AS anxiety (75% depression 25% anxiety)
Venlafaxine contraindication
DBE
- Diastolic Hypertension
- Breast feeding
- Epilepsy (Decreases seizure threshold)
List of TCA’s
- Nortriptyline
- Amitriptyline
- Imipramine
- Desipramine
- Dothiepin
List of MAOI’s
PS
- Phenelzine
- Selegiline
List of mood stabilisers
LSLC
- Lithium
- Sodium Valproate
- Lamotrigine
- Carbamazepine
List of Typical Antipsychotics (1st Generation)
HDFTCP
- Haloperidol (causes arrhythmias)
- Droperidol
- Fluphenazine
- Thioridazine
- Chlorpromazine
- Prochlorperazine
Typical Antipsychotics (1st Generation) use and side effects
H-A
C-S
T-R
Treatment of POSITIVE symptoms.
- Haloperidol: Arrithmyas.
- Chlorpromazine and Thioridazine: More epileptogenic, orthostatic hypotension, and anticholinergic effects (dry mouth, constipation, and urinary retention)
- Chlorpromazine causes sedation
- Thioridazine causes retinal pigmentation
Typical Antipsychotics: Mechanism of Action
- Mainly dopaminergic neurotransmission inhibition.
- Also noradrenergic, cholinergic, and histaminergic inhibition.
Typical Antipsychotics: General Side Effects
- Extrapyramidal Symptoms: Acute dyskinesias, tardive dyskinesia, Parkinsonism, akinesia, akathisia.
- Agitation
- Lower seizure threshold
- Prolonged QT interval
- Hyperprolactinemia (> 2000): Galactorrhea, amenorrhea, impotence, and anorgasmia
Extrapyramidal symptoms: days
Acute Dystonia (2-3d)
- Torticollis (neck muscles spasm & twists to the side)
- Buccolingual crisis (rotruding or pulling sensation of the tongue)
- Oculogyric crisis (upward deviation of the eyeball)
- Opisthotonus: spastic contraction of the extensor muscles of the neck, trunk, and lower extremities (Banana shape)
*Treatment:
1. Reduce the dose of antipsychotic
2. Change to another with less EPS (ACQ)
3. For symptom relief: Benztropine, diphenhydramine, procyclidine
Extrapyramidal symptoms: (weeks)
Akathesia (weeks): Legs restlessness
*Treatment:
1. Reduce doses or change the drug.
2. Propranolol, diazepam, benztropine
Extrapyrimidal smyptoms: MONTHS
Tardive Dyskinesia (3-6m)
- Lip-smacking
- Head nodding
- Tongue protrusion
*Treatment:
1. Reduce the dose of antipsychotic
2. Change to Clozapine.
Extrapyrimidal symptoms (6 months):
Neuroleptic-induced parkinsonism (> 6 months):
Classic parkinson symptoms.
Treatment:
1. Reduce the dose of antipsychotic
2. Change to another with less EPS (ACQ).
3. For symptom relief: Benztropine, diphenhydramine, procyclidine
List of Atypical Antipsychotics (2nd Generation)
CROQA
Order from lowest to highest potency
- aripiprazole
- quetiapine
- olanzapine
- risperidone
- clozapine
- ziprasidone
- lurasidone
- paliperidone
- amisulpride
Atypical Antipsychotics (2nd Generation) features
Treatment of NEGATIVE symptoms.
- Decreased risk of extrapyramidal symptoms.
- Increased risk of stroke in older people.
Atypical Antipsychotics that don’t cause extrapyramidal symptoms
ACQ:
Aripiprazole, Clozapine, Quetiapine
Atypical Antipsychotics: Mechanism of Action
D2-dopamine & serotonin receptor antagonists
Atypical antipsychotic side effects
The overall ones
- Hyperprolactinemia (>2000ml)
- significant weight gain
- metabolic syndrome
Atypical Antipsychotics with minimal weight gain
Aripiprazole and Lurasidone
Risperidone features
Which conditions is it used for?
It causes drug induced
Must switch to ?
- Used for Tourettes, ADHD, mania/hypomania, postpartum psychosis,schizophrenia
- Main cause for drug-induced cause hyperprolactinemia (Switch to aripiprazole).
Olanzapine features
- Causes weight gain & HbA1c >7.5% (Change to Aripiprazole)
- Cause Hypertriglyceridemia (but not cholesterol)
METABOLIC SYNDROME
Clozapine side effects
- Agranulocytosis: Stop when WBC goes < 3000.
- Myocarditis: Measure troponin
- Tachycardia
- Hypersalivation
Quetiapine features
- Causes sleeping: Drug of choice for psychosis with insomnia
- Doesn’t cause hyperprolactinemia
Antidepressants side effects
- GI distress: Most common and temporary. Nausea, Vomiting, Diarrhoea (sertraline)
- Sexual side effects: Erectile dysfunction, anorgasmia, delayed ejaculation and decreased libido
- Nervous System: Agitation, insomnia, tremor
- SSRRs: GI bleeding in combination with AAS or NSAIDs. The best option is TCA’s
- Serotonin Syndrome
SSRI’s Withdrawal
Some adverse effects are likely, but most will go away after 1–2 weeks
[incomplete flash card]
Tardive dyskinesia vs Drug-Induced Parkinsonism
Identical symptoms:
- rigidity
- bradykinesia
- postural instability
Differentiating symptoms:
- Tardive: involuntary movements of face and tongue
- Parkinsonism: Stiffness
Drug-induced extra-pyramidal disease features
- Common in the elderly due to diminished brain dopamine stores
- Caused by neuroleptic drugs
- Tardive dyskinesia is the primary symptom
- Treatment is to cease offending neuroleptic
Paroxetine contraindication
Avoid in pregnancy:
-causes pulmonary HT in the fetus.
Bupropion Features
CI -
- Indicated: smoking cessation
- Contraindicated: Seizures and eating disorders
- Decrease seizure threshold
- Minimal Sexual Side Effects
Mirtazapine Features
- Causes weight gain and sedation
- Indicated for patients with history ofother drug overdose
MOA: NA and serotoninergic antidepressant.
Venlafaxine contraindication
- Contraindicated in HTA because it causes diastolic HTN
Fluoxetine features
- Long half-life: most likely to cause serotonin symptoms, sleep, and paralysis.
- Useful for post-stroke depression
- Indicated in pregnancy and adolescents
Serotonin Synd & NMS Synd SHARE symptoms
- Altered mental status
- Hyperthermia > 40C
- Hypersalivation
- Autonomic Dysregulation: Tachycardia, hypertension, muscle spasms, diaphoresis, erythema
Serotonin Symptoms specific symptoms
- Onset: < 24 h
- Dose dependant. Increasing doses
- Severe muscle WEAKNESS, CLONUS, and HYPERreflexia
- Nausea, vomiting
- Increased bowel sounds
- Dilated pupils (Mydriasis)
Serotonin Syndrome causes
- SSRIs
- MAOIs
- TCAs
- Opioids: Tramadol, Morphine, Meperidine
- Illicit drugs
- St John’s wort
Serotonin Syndrome step by step management
- DRABCDE
- Stop medications
- Cyproheptadine + BZD
- Chlorpromazine
NMS specific symptoms
- Onset: Days / Weeks
- **Not dose dependant. ** Occurs any time
- Severe muscle RIGIDITY with HYPOreflexia
- No nausea or vomiting
- Reduced bowel sounds
- Normal pupils
NMS causes
Dopamine Antagonist (Antipsychotics/Neuroleptics) such as haloperidol
NMS step by step management + medicatons
- DRABCDE
- Stop medications
- Benzodiazepines + Bromocriptine
Usually medication is never withdrawn immediately. In what situation is this the exception
- Serotonin syndrome (SS)
- Neuroleptic malignant syndrome (NMS)
TCAs Side Effects
3C’s + Anticholinergic symptoms
TCAs DON’T cause impotence!
TCA Mechanism of action
Alpha-adrenergic inhibition
TCA 3C’s
- Cardiac arrhythmias (prolong QT, MCC of death)
- Convulsions (drowsiness)
- Coma (Respiratory depression, hypoxia)
TCA anticholinergic symptoms
- Hyperreflexia
- Urinary retention
- Dilated pupils (mydriasis)
TCA Overdose Complications
- Cardiac Arrhythmias
- Aspiration pneumonia
Tricyclic antidepressants (TCAs) are a type of medication that can be dangerous in large amounts (overdose). Here’s why an overdose can lead to cardiac arrhythmias and aspiration pneumonia in simple terms:
- What Happens: TCAs affect the electrical signals in the heart that control the heartbeat.
- Why It’s a Problem: In an overdose, TCAs can interfere with these signals, leading to irregular heartbeats (arrhythmias). This means the heart might beat too fast, too slow, or in an uncoordinated way.
- Why It’s Dangerous: Irregular heartbeats can reduce the heart’s ability to pump blood effectively, which can be life-threatening.
- What Happens: TCAs can make a person very drowsy or even unconscious.
- Why It’s a Problem: When someone is unconscious or has a reduced level of consciousness, they may vomit and accidentally inhale (aspirate) some of the vomit into their lungs instead of clearing it out of their airway.
- Why It’s Dangerous: The stomach contents that enter the lungs can cause a serious lung infection known as aspiration pneumonia. This happens because the lungs are not meant to handle anything other than air, so inhaled vomit can cause inflammation and infection.
- Cardiac Arrhythmias in TCA overdose occur because the drug disrupts the heart’s electrical signals, leading to potentially dangerous irregular heartbeats.
- Aspiration Pneumonia can happen if the person vomits while unconscious from the overdose and inhales vomit into their lungs, causing a serious lung infection.
Both of these complications are serious and require immediate medical attention.
TCA overdose in suicidal attempt initial investigations
- ECG
- Paracetamol levels (30-40 min after arrival)
TCA Overdose step by step management
- < 1hr: Gastric lavage and ECG for 48hrs
- > 1hr: Alkalinisation w/ IV sodium bicarbonate (antidote)
- if severe Hypotension: IV NS + IV glucagon + Mg sulphate (stabilizes the cardiac membrane)
- if seizures: IV Diazepam
Major Depression Criteria
2 core symptoms + 5 other symptoms > 2 weeks
MSIGECAPS
Major depression core symptoms
- Low mood
- Anhedonia
- Lethargy
Major depression non-core/other symptoms
- Change in appetite and weight
- Poor concentration
- Early morning awakening
- Suicidal ideations
- Tiredness
- Guilt
Major depression MSIGECAPS
Mood (low)
Sleep
Interest (low)
Guilt
Energy (low)
Concentration
Appetite (low)
Psychomotor Retardation
Suicidal ideation
Major Depression progression Management
Counseling (CBT) + medication
- Monotherapy preferred
- 1st episode: Treatment for 6-12m
- > 1 episode: Treatment for 3-5y
- SSRI (Sertraline)
- Change to another SSRI
- Augmentation therapy by adding Lithium (1st) and atypical antipsychotics (2nd).
- Change to an SNRI
- ECT (Very severe)
Effect size of most treatments of depression
ECT (0.8) > CBT (0.5) > Anti-depressants (0.4)
Moderate Depression Diagnose
Criteria: > 2w with 2 core symptom + ≤ 3 other symptoms
Moderate Depression management
- CBT
- SSRI
Mild Depression criteria
1 core symptom + ≤ 3 other symptoms > 2w
Mild depression management
CBT
Atypical Depression clinical features
- Weight gain
- Hypersomnia
- Rejection sensitivity
- Reverse diurnal variation
Atypical Depression management
MAOI’s
Dysthymia criteria
Depression before puberty (usually) + less severe and persisting symptoms > 2y
Dysthymia management
- CBT
- SSRI
Lithium side effects
- Weight gain
- Fine tremors
- Stomach pain
- Hypothyroidism
- Hyperparathyroidism
- Diabetes insipidus
- Hair loss
Lithium Contraindications
- Chronic renal failure
- Hypothyroidism
Lithium intoxication
Seizures
Tremors
Fever
Hyperreflexia
Lithium in pregnancy
In cases of severe bipolar disorder, the benefits outweigh the risks
- 1st-trimester low risk of Epstein’s anomaly (0.05%) & midfacial and other defects.
- displacement of the tricuspid valve
- US & ECHO at 16-20w (2nd trimestrer) to exclude foetal anomalies, especially cardiac anomalies
Risk of developing Ebstein’s anomaly on patients on lithium?
approximately 1 in 1000 to 2000
compared with 1 in 20000 in the general population.
Ebstein’s anomaly definition
The tricuspid valve is incorrectly formed and located lower than usual in the heart.
Lithium dosage during 1st trimester
1 - 12 weeks
Keep the same dose as before pregnancy
Lithium dosage during 2nd trimester
13 - 26 weeks
Continue the same lithium dosage. But heavily monitor the fetus by US at 16-20 weeks.
Lithium dosage during 3rd trimester
Since 27 weeks
Decrease lithium dosage by 25% to avoid floppy baby syndrome due to neonatal toxicity.
Post Natal Lithium dosage
After delivery immediately increase lithium dosage due to
increased risk of relapse in the postpartum period.
NO BREASTFEEDING!!!!
Causes of Lithium Toxicity Syndrome
- Dehydration (vomiting, gastro)
- Diuretics (Thiazides)
- NSAIDs
- Exercise
- Renal failure
Here’s how and why each of these factors can cause lithium toxicity:
- Dehydration (vomiting, gastro): When you’re dehydrated, your body retains more lithium because there’s less fluid to dilute it, leading to higher concentrations in the blood.
- Diuretics (Thiazides): These medications increase urine production, causing the kidneys to retain more lithium to compensate for the loss of other electrolytes, raising lithium levels.
- NSAIDs: Nonsteroidal anti-inflammatory drugs reduce kidney function, which can decrease the elimination of lithium from the body, causing it to accumulate.
- Exercise: Intense exercise can lead to dehydration and electrolyte imbalances, both of which can reduce lithium excretion and increase its levels in the blood.
- Renal failure: If the kidneys aren’t working properly, they can’t filter out lithium efficiently, causing it to build up in the body.
Lithium Toxicity Syndrome clinical features
- Polyuria
- Polydipsia
- Coarse tremors
- Hypertonia
- Seizures
- Arrhythmias
Lithium toxicity occurs when there is too much lithium in the body, often due to an overdose or poor kidney function. Here’s why and how it causes the symptoms listed:
- Polyuria (frequent urination) and polydipsia (excessive thirst): Lithium affects the kidneys’ ability to concentrate urine, leading to increased urine production and, consequently, increased thirst.
- Coarse tremors: High levels of lithium interfere with the normal function of nerves and muscles, causing noticeable shaking.
- Hypertonia (increased muscle tone): Lithium can disrupt the balance of electrolytes and nerve signals, causing muscles to become unusually stiff or tight.
- Seizures: Excessive lithium can overstimulate the brain’s electrical activity, leading to seizures.
- Arrhythmias (irregular heartbeats): Lithium affects the electrical conduction system of the heart, potentially causing abnormal heart rhythms.
Lithium Toxicity Syndrome Management
1 hour mark
- < 1 hour: Gastric lavage
- > 1hr: Check lithium levels:
Normal: 0.6-0.8
2 Hospitalisation
4 haemodialysis until zero.
Monitor for the next 7d because lithium can rebound
Sodium Valproate dosage in pregnancy
1st trimester: decrease dose to prevent neural tube defects + High dose folic acid (5mg)
2nd semester: continue decreased dosage through to 3rd semester
3rd trimester: increase the dosage to prevent seizures
If a patient, who has successfully been stable on prophylactic dose of a particular mood stabilizer, develops acute depression, what is the next best step in management?
- Adding an antidepressant to the prophylactic mood stabilizer: the choices of the drug would be the same as for major depression. SSRls first line.
- Increasing the dose of prophylactic mood stabilizer: ONLY if the patient’s psychosis is indicated in coming back, otherwise continue the same dose
Mania criteria
Symptoms ≥7 days + Functional impairment + Delusions
Mania clinical features
- Grandiosity
- Decreased sleep
- Talkative, flight of ideas,
- Distractibility
- Psychomotor agitation
- Excessive involvement in pleasurable activities
Mania General Management
High person
a
- Antipsychotics + Mood Stabilisers.
Antipsychotics: Olanzapine first, Risperidone if olanzapine not given
Mood stabilizers: Lithium, Sodium Valproate, Carbamazepine
- Combine 2-3 of these drugs
- ECT
NOTE: Psychosis requires hospitalization
Mania agitated patient management
- Verbal de-escalation and psychological intervention
- Agitation:
- If agitation is caused by drug intoxication, then benzodiazepine (Midazolam)
- If agitation is caused by psychosis atypical antipsychotic is preferred.
- Zuclopenthixol (according to eTG) or
- Haloperidol (less preferred I think)
Mania Drug Management in Pregnancy
1st trimester: Lithium, quetiapine, olanzapine, risperidone
2nd trimester: Carbamazepine
Hypomania Criteria
- Symptoms ≥4 days + NO Functional impairment + NO Delusions and hallucinations
- NO Hospitalization
Hypomania Management
Olanzapine or Risperidone
Bipolar Depression Clinical Features
Bipolar I: 1 manic episode + depression
Bipolar II (True bipolar)
1 hypomania + 1 Depression episode
Bipolar Depression familial risk
1 parent: 15-30%
2 parents: 50-70%.
Fraternal twins: 15-25%
Bipolar Depression Management
- First-line drugs:
- lamotrigine
- lithium
- lurasidone
- olanzapine
- quetiapine - If no response: add SSRI (any)
For PROPHYLAXIS: Use lithium
Bipolar Depression Management in Pregnancy
- Lamotrigine, quetiapine, olanzapine
- Lithium
Lurasidone: May cause extrapyramidal or withdrawal symptoms in neonates when exposed in the third trimester.
Difference between BPD and Cyclothymic disorder?
BPD:
- impulsivity in at least two areas that are potentially self-damaging
- unstable and intense interpersonal relationships
- alternating between extremes of idealization and devaluation
Cyclothymic:
- many periods of depressed mood
- many episodes of hypomanic mood for at least 2 years
- 1 year in children and adolescents
- During the above 2-year period the hypomanic and depressive periods are present for at least half the time and
- the individual has not been without the symptoms for more than 2 months at a time
Cyclothymia criteria
Alternating episodes of hypomania and moderate depression for >2y
Karla: is the managmeent of this disorder the same as BPD?
Postpartum Blues criteria
< 2 weeks of delivery.
-80% of the postpartum women
Postpartum Blues clinical features
- neglects baby BUT no thoughts of hurting it
- low mood
- sadness
- mild depression
Postpartum Blues management
Family support, usually resolves in 1m
Postpartum Psychosis criteria
Appears within 2-w post delivery.
Postpartum Psychosis Clinical Features
- thoughts of hurting the baby
- Hallucinations
- Delusions
Postpartum Psychosis Management
- If hurting baby: CPS and organize psych review
- If the prior history of previous postpartum psychosis: start antipsychotics after delivery
- Antipsychotics: Olanzapine, risperidone NO CLOZAPINE
- ECT: Initial treatment-resistant
Postpartum Psychosis breastfeeding prophylactic management
Breastfeeding:
YES: Sodium Valproate
NO: Lithium
Drugs to suppress lactation (postpartum) or treatment for hyperprolactinemia
- Bromocriptine: Can lead to post partum psychosis!!!
- Cabergoline
Bromocriptine can cause postpartum psychosis because it messes with the hormones that change after childbirth. This hormonal disruption can trigger severe mental health problems in some women, leading to symptoms like delusions and mood swings.
Postpartum Depression criteria
Appears 1-3m postdelivery.
Postpartum Depression Clinical Features
- Thoughts about hurting baby
- Features of depression.
- Risk in future pregnancies: 20-40%.
Postpartum Depression Management
- Antidepressants: Sertraline or Paroxetine
Avoid Fluoxetine (Karla: why?)
- ECT
NOTE: If mum took SSRI or SNRI during pregnancy, observe the baby for 3 days (observing for what?) in the hospital, then discharge
Postpartum obsession criteria
- Appears 1-3m postdelivery.
- Obsession of hurting the baby
ECT process
1–3 sessions per week for 8–12 sessions total
Prior procedure:
- 8 h Fasting
- 2 h refrain from smoking
- Dentures and jewelry removed
- Ensure hair is clean
During the procedure: EEG monitoring
Initial ECT method
Unilateral therapy
Alternative to ECT
Transcranial direct current electromagnetic stimulation
- No anesthetic is required, and less invasive
ECT indications
- Psychotic depression (e.g. delusions, hallucinations)
- Melancholic depression unresponsive to antidepressants
- Severe postnatal depression and psychosis
- Substantial suicide risk
- Ineffective antidepressant treatment and/or previous response to ECT
- Severe psychomotor depression (catatonia): refusal to eat or drink, depressive stupor, severe personal neglect
ECT absolute contraindication
Raised intracranial pressure
ECT relative contraindications
- Hypertension
- Myocardial Infarction <3 m
- Bradyarrhythmia
- Cardiac Pacemakers
- Intracranial Pathology
- Aneurysms
- Epilepsy
- Osteoporosis
- Skull Defect
- Retinal Detachment
- Benzodiazepines (lower seizure threshold)
- Water (amitriptyline)
ECT common adverse effects
headache, myalgia, nausea, and drowsiness.
- 10 to 30 mins after: Acute confusion
- Resolves at 2w: Anterograde amnesia
- Appears in weeks to months: Retrograde amnesia
ECT uncommon adverse effects
- Acute post-ECT delirium:
- Mild: Impaired comprehension and disorientation. Mx: Supervision
- Severe: Psychomotor restlessness. Mx: IV Psychotropics - Confusion can be Ongoing ictal activity (non-convulsive status epilepticus)
Ix: EEG monitoring
Mx: Midazolam.
ECT Combination with Antidepressants
- Cause seizures. Taper them, washout, and then ECT
- TCA’s + cardiac disease = life-threatening
ECT Combination with Benzodiazepines
- Advisable to withdraw completely
- Alternative: Use short-term sedative antipsychotics in low-dose
(treat both, night sedation and agitation)
ECT Combination with Mood Stabilisers
Carbamazepine and sodium valproate: increase seizure threshold. Reducing or ceasing (EXCEPT epilepsy)
ECT Combination with Lithium
Can cause post-ECT delirium.
Could be suspended during ECT unless there is a strong reason for its continuation
1st line treat for malignant catatonia?
ECT
Malignant catatonia is a severe form of catatonia, a condition where a person has difficulty moving normally and may become almost completely immobile. In malignant catatonia, the symptoms are extreme and can include severe muscle stiffness, fever, confusion, and autonomic instability (like blood pressure and heart rate changes). It can be life-threatening and requires urgent medical treatment.