Bipolar Flashcards
(26 cards)
What is the minimum duration of a manic episode according to ICD-10?
At least 1 week, or any duration if hospitalization is required.
What is the core mood feature required for a manic episode in ICD-10?
Abnormally elevated, expansive, or irritable mood clearly abnormal for the individual.
How many symptoms are required to diagnose a manic episode in ICD-10?
At least 3, or 4 if the mood is only irritable
associated symptoms of mania in ICD-10.
D - Distractibility or constant changes in activity or plans
I - inpulsivity such as overspending, reckless driving, or foolish business investments
G - Grandiosity - Inflated self-esteem or grandiosity
F - Flight of ideas or subjective experience of racing thoughts
A - activity increase
S - sleep deficit
T - talkativeness
Loss of normal social inhibitions, resulting in inappropriate behavior
Marked sexual energy or sexual indiscretions
What is required in terms of functional impact in ICD-10 mania?
Significant disruption to work/social life, hospitalization, or psychotic features.
What are the exclusion criteria for ICD-10 mania?
Not due to substance use, medications, or a general medical condition.
Icd 11 differences of mania
Duration - several days, typically at least one week
What is the minimum duration for hypomania in ICD-10?
At least 4 consecutive days.
How many symptoms are required for ICD-10 hypomania?
At least 4 consecutive days.
How many symptoms are required for ICD-10 hypomania?
3 or more (4 if mood is only irritable).
Can psychotic symptoms occur in hypomania per ICD-10?
No, psychotic symptoms exclude the diagnosis.
Functional impact of hypomania
No severe impairment in social or occupational functioning,
No psychotic symptoms,
Hospitalization not required.
Risk assessment of BPAD
π΄ 1. Risk of Suicide
High during depressive episodes and mixed states
Increased risk if:
History of suicide attempts or self-harm
Feelings of hopelessness or worthlessness
Comorbid substance misuse
Poor insight into illness
Recent discharge from psychiatric care
π΄ 2. Risk of Harm to Others
More likely in manic or psychotic states
Can result from:
Irritability or aggression
Grandiose or persecutory delusions
Poor impulse control
π΄ 3. Risk to Physical Health
Poor self-care during episodes
Side effects of medications (e.g., lithium toxicity)
Comorbid conditions (e.g., obesity, diabetes, cardiovascular disease)
Substance misuse (common in BPAD)
π΄ 4. Risk of Non-Adherence to Treatment
Often due to:
Poor insight during manic episodes
Side effects of medications
Distrust of services or denial of illness
π΄ 5. Risk to Social and Occupational Functioning
Relationship breakdowns
Job loss or financial problems
Legal issues (e.g., during manic episodes)
Admission criteria
- High risk of suicide of homicide
- Endangering relationships, reputation, assets
- Poor adherence
Lack of psychosocial support
Severe psychotic symptoms
Severe depressive symptoms
Severe mixed state or rapid cycling
Catatonic
Comorbidities
Acute manic episode management
πΉ First-line options:
Atypical antipsychotic (monotherapy):
e.g. Olanzapine, Risperidone, Quetiapine, or Haloperidol
πΉ If symptoms are severe or response is inadequate:
Add lithium to the antipsychotic
Alternatively, valproate may be used if lithium is unsuitable
Acute depression
πΉ First-line:
Fluoxetine + Olanzapine combination
OR
Quetiapine monotherapy
OR
Olanzapine monotherapy
πΉ Alternatives:
Lamotrigine (especially for bipolar II depression)
Valproate (less preferred, especially in women of childbearing age)
> β οΈ Do NOT prescribe antidepressant monotherapy due to risk of switching to mania
What is the mechanism of action of lithium in mood disorders?
Lithium modulates neurotransmission via effects on second messenger systems (e.g., inhibits inositol monophosphatase and GSK-3), leading to neuroprotective and mood-stabilising effects.
Which drugs commonly interact with lithium and increase its toxicity risk?
NSAIDs (e.g., ibuprofen)
ACE inhibitors
Thiazide diuretics
Some antibiotics (e.g., tetracyclines, metronidazole)
Ssri
Methyldopa
Haloperidol
CCBs
What are the common side effects of lithium?
Tremor
Polyuria/polydipsia (nephrogenic diabetes insipidus)
Weight gain
Hypothyroidism
GI upset
Metallic taste
What teratogenic effects are associated with lithium use in pregnancy?
Lithium is associated with Ebsteinβs anomaly (a rare congenital heart defect) when used in the first trimester.
NICE recommends avoiding lithium during early pregnancy unless essential
What are the signs of lithium toxicity?
GI: nausea, vomiting, diarrhoea
CNS: coarse tremor, confusion, ataxia, dysarthria
Severe: seizures, coma, death
How is lithium toxicity managed?
Stop lithium immediately
Forced diuresis with NS
Check serum lithium level, renal function, ECG
Supportive care
Dialysis if severe (e.g., level >2.5 mmol/L or severe neurotoxicity)
Ix prior to Li
Physical
FBC
UNE
TFT
baseline bmi
Ecg
Preg test
Li dosing
400 - 600 starting
Max 2 g
Usual 800 - 1.2