Bipolar I Disorder is a mental disorder characterized by episodes of highly elevated or irritable mood, known as mania. Individuals may also present with decreased sleep, grandiosity, talkativeness, racing thoughts, and indiscretion or risk-taking behaviours. In some presentations, one's mood can shift very quickly between mania, anger, irritability, and/or depression, indicating a “mixed features” presentation of bipolar disorder.
Risk Factor | Risk |
---|---|
Monozygotic twin affected | 40-45% |
1st degree relative affected | 9% |
Criteria have been met for at least 1
manic episode (see Manic Episode Criteria below)
The occurrence of the manic and major depressive episode(s) is not better explained by schizoaffective disorder, schizophrenia, schizophreniform disorder, delusional disorder, or other specified or unspecified schizophrenia spectrum and other psychotic disorder.
1
lifetime manic episode is required for the diagnosis of bipolar I disorder. The manic episode may have been preceded by and may be followed by hypomanic or major depressive episodes.
1
week and present most of the day, nearly every day (or any duration if hospitalization is necessary).
During the period of mood disturbance and increased energy and activity, at least 3
of the following symptoms have persisted (4
symptoms if the mood is only irritable), represent a noticeable change from usual behaviour, and have been present to a significant degree:
DIGFAST
can be used to remember the criteria for bipolar I and II disorder.[14]
D
- DistractibilityI
- IndiscretionG
- GrandiosityF
- Flight of ideasA
- Activity increasedS
- Sleep decreasedT
- TalkativenessThe mood disturbance is sufficiently severe to cause marked impairment in social or occupational functioning or to necessitate hospitalization to prevent harm to self or others, or there are psychotic features.
The episode is not attributable to the physiological effects of a substance (e.g. - a drug of abuse, a medication, other treatment) or to another medical condition.
2
months without any significant symptoms of a manic, hypomanic, or major depressive episode following the end of such an episode.2
months, no significant signs or symptoms of the disturbance were present.2
of the following symptoms during the majority of days of the current or most recent episode of mania, hypomania, or depression:2
symptoms3
symptoms4
or 5
symptoms4
or 5
symptoms and with motor agitationThe mixed features specifier can apply to the current manic, hypomanic, or depressive episode in bipolar I or bipolar II disorder:
Manic or hypomanic episode, with mixed features:
3
of the following symptoms are present during the majority of days of the current or most recent episode of mania or hypomania:Depressive episode, with mixed features:
3
of the following manic/hypomanic symptoms are present during the majority of days of the current or most recent episode of depression:
This specifier (can be applied to bipolar I or bipolar II disorder). There is presence of at least 4
mood episodes in the previous 12
months that meet the criteria for manic, hypomanic, or major depressive episode.
4
mood episodes during the previous 12
months. These episodes can occur in any combination and order. The episodes must meet both the duration and symptom number criteria for a major depressive, manic, or hypomanic episode and must be demarcated by either a period of full remission or a switch to an episode of the opposite polarity. Manic and hypomanic episodes are counted as being on the same pole. Episodes are demarcated by either partial or full remissions of at least 2
months or a switch to an episode of the opposite polarity (e.g. - major depressive episode to manic episode). Except for the fact that they occur more frequently, the episodes that occur in a rapid-cycling pattern are no different from those that occur in a non-rapid cycling pattern. Mood episodes that count toward defining a rapid-cycling pattern exclude those episodes directly caused by a substance (e.g. - cocaine, corticosteroids) or another medical condition.
1
of the following is present during the most severe period of the current episode:3
or more of the following:2
hours before usual awakening)This specifier can be applied when these features predominate during the majority of days of the current or most recent major depressive episode.
2
or more of the following:Delusions or hallucinations are present at any time in the episode. If psychotic features are present, specify if mood-congruent or mood-incongruent:
This specifier can apply to an episode of mania or depression if catatonic features are present during most of the episode.
This specifier can be applied to the current or, if the full criteria are not currently met for a mood episode, most recent episode of mania, hypomania, or major depression in bipolar I or bipolar II disorder if onset of mood symptoms occurs during pregnancy or in the 4
weeks following delivery.
This specifier applies to the lifetime pattern of mood episodes. The essential feature is a regular seasonal pattern of at least 1
type of episode (i.e. - mania, hypomania, or depression). The other types of episodes may not follow this pattern. For example, an individual may have seasonal manias, but his or her depressions do not regularly occur at a specific time of year.
2
years, the individual’s manic, hypomanic, or major depressive episodes have demonstrated a temporal seasonal relationship, as defined above, and no non-seasonal episodes of that polarity have occurred during that 2
-year period.Name | Rater | Description | Download |
---|---|---|---|
Young Mania Rating Scale (YMRS) | Clinician | Most frequently utilized to assess manic symptoms. 11 items on the patient’s subjective report over the last 48 hours plus clinical observations.[17] Takes 15–30 minutes to complete. | YMRS Download |
Mood Disorder Questionnaire (MDQ) | Patient | The MDQ screens for bipolar spectrum disorder, (which includes Bipolar I, Bipolar II and unspecified bipolar disorder). There are 13 self-rated questions. Although the original study claimed a 90% specificity and 70% sensitivity for an eventual diagnosis of bipolar disorder, more recent studies show that the MDQ risks falsely identifying individuals with bipolar disorder.[18][19][20] For example, borderline personality disorder, PTSD, substance use disorder, and childhood abuse are associated with false positives on the MDQ. More recent studies have shown that the positive predictive value of the MDQ is only around 55%.[21] | MDQ Download |
Genome Wide Association Studies (GWAS) suggest that the ANK3 (ankyrin G) and CACNA1C (alpha 1C subunit of the L-type voltage-gated calcium channel) genes may be involved in the pathogenesis of bipolar disorder. Both of these genes for for ion channels, and suggest that channelopathies may play a role in the development of bipolar disorder.[22] Other candidate genes for bipolar disorder include:
It is important to keep your differential diagnosis broad to avoid overdiagnosis and misdiagnosis of bipolar disorder. Common comorbidities such as substance use disorders, impulse control disorders, anxiety disorders, and personality disorders such as borderline personality disorder have a significant symptom overlap with bipolar disorder.
There are key differences in the diagnostic criteria between bipolar I and bipolar II disorder. The table below outlines these differences.
Bipolar I | Bipolar II | |
---|---|---|
Diagnostic Criteria | manic episode only | hypomanic episode + depressive episode |
Length | > 7 days | > 4 days |
Impairment | Severe | Minor to none |
Hospitalization | Possible | No |
Psychosis | Possible | No |
Since bipolar disorder often presents first with a depressive episode, individuals may be misdiagnosed with major depressive disorder instead of bipolar disorder. Patients often fail (unintentionally) to report hypomanic/manic episodes as well. A missed diagnosis of bipolar disorder can result in the worse prognosis and inadequate treatment.[26][27]
Feature | Suggests Bipolar | Suggests Unipolar Depression |
---|---|---|
Symptomatology and Mental State Signs | • Hypersomnia and/or increased daytime napping • Hyperphagia and/or increased weight • Other “atypical” depressive symptoms such as leaden paralysis • Psychomotor retardation • Psychotic features and/or pathological guilt • Lability of mood, irritability, psychomotor agitation, racing thoughts | • Initial insomnia/reduced sleep • Appetite and/or weight loss • Normal activity levels • Somatic complaints |
Course of Illness | • Early onset of first depression (<25 years) • Multiple prior episodes (≥5 episodes) | • Late onset of first depression (>25 years) • Long duration of current episode (>6 months) |
Family History | • Positive family history of bipolar disorder | • Negative family history of bipolar disorder |
Medication | Use If | Possible Adverse Events |
---|---|---|
Lithium | • Classical euphoric grandiose mania (elated mood in the absence of depressive symptoms) • Classical mania‐depression‐euthymia course • Fewer prior episodes of illness • Family history of bipolar and/or lithium response | Renal impairment, thyroid dysfunction, worsening of psoriasis |
Valproate | • Both classical and dysphoric mania (mixed features) • Predominant irritable or dysphoric mood • Comorbid substance use • History of traumatic brain injury | Teratogen, and PCOS |
Carbamazepine | • History of traumatic brain injury • Comorbid anxiety and substance use • Schizoaffective disorder with mood-incongruent delusions • Negative family history of bipolar disorder | Teratogen, hepatic CYP enzyme autoinduction, risk of SJS/TEN as well |
Lamotrigine | • Predominant depressive symptoms (remember that lamotrigine does not treat mania!) • Comorbid anxiety | Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) |
1st line | Monotherapy: lithium, quetiapine (dose range 400 to 800 mg)[37], divalproex, asenapine, aripiprazole, paliperidone (>6mg), risperidone, cariprazine Combination therapy: quetiapine + Li/DVP, aripiprazole + Li/DVP, risperidone + Li/DVP, asenapine + Li/DVP |
---|---|
2nd line | Monotherapy: olanzapine, carbamazepine, ziprasidone, haloperidol, ECT Combination therapy: olanzapine + Li/DVP, lithium + DVP |
3rd line | Monotherapy: chlorpromazine, clonazepam, clozapine Combination therapy: Carbamazepine/oxcarbazepine + Li/DVP, haloperidol + Li/DVP, rTMS, tamoxifen, tamoxifen + Li/DVP |
Not recommended | Allopurinol, eslicarbazepine/licarbazepine, gabapentin, lamotrigine, Omega-3 fatty acids, topiramate, valnoctamide, zonisamide |
1st line | Monotherapy: lithium, quetiapine, divalproex, lamotrigine (limited efficacy in preventing mania), asenapine, aripiprazole, aripiprazole OM (once monthly) Combination therapy: quetiapine + Li/DVP, aripiprazole + Li/DVP |
---|---|
2nd line | Monotherapy: olanzapine, risperidone LAI, carbamazepine, paliperidone (>6 mg) Adjunctive therapy: risperidone LAI Combination therapy: lurasidone + Li/DVP, ziprasidone + Li/DVP |
3rd line | Combination therapy: aripiprazole + lamotrigine, olanzapine + fluoxetine Adjunctive therapy: clozapine, gabapentin |
Not recommended | Monotherapy: perphenazine, tricyclic antidepressants |
L
's” for bipolar depression: L
ithium, L
urasidone, L
amotrigine.
1st line | Monotherapy: quetiapine (target dose: 300 mg/day), lithium (target level: 0.8-1.2 meq/L), lamotrigine (minimum dose: 200 mg), lurasidone Combination therapy: lurasidone + Li/DVP Adjunctive therapy: lamotrigine |
---|---|
2nd line | Monotherapy: divalproex, ECT, cariprazine Combination therapy: olanzapine-fluoxetine (combination pill) Adjunctive therapy: SSRIs/bupropion |
3rd line | Monotherapy: carbamazepine, olanzapine Adjunctive therapy: aripiprazole, armodafinil, asenapine, eicosapentaenoic acid (EPA), ketamine (IV), light therapy ± total sleep deprivation, levothyroxine, modafinil, N‐acetylcysteine, pramipexole, repetitive transmagnetic stimulation (rTMS), SNRI/MAOI |
Not recommended | Monotherapy: antidepressant, aripiprazole Combination therapy: lamotrigine + folic acid Adjunctive therapy: mifepristone |
For a deeper dive into the literature, the STEP-BD trial showed that adjunctive treatment with antidepressants does not improve clinical outcomes in people with bipolar disorder taking a mood stabilizer.[41] Recent randomized clinical trials have shown that antidepressants may worsen outcomes in maintenance treatment of bipolar disorder as well.[42]
Acute Mania | Acute Depression | Mania Prevention | Depression Prevention | Prevention of Any Mood Episode | |
---|---|---|---|---|---|
Lithium | Yes1 | Yes2 | Yes1 | Yes1 | Yes1 |
Quetiapine | Yes1 | Yes1 | Yes1 | Yes1 | Yes1 |
Divalproex | Yes1 | Yes1 | Yes3 | Yes1 | Yes1 |
Lamotrigine | No! | Yes1 | Yes2 | Yes1 | Yes1 |
Asenapine | Yes1 | No data | Yes2 | Yes2 | Yes2 |
Aripiprazole | Yes1 | Not recommended! | Yes2 | No | Yes2 |
Paliperidone | Yes1 | No | Yes2 | No data | Yes2 |
Olanzapine* | Yes1 | Yes1 | Yes1 | Yes1 | Yes1 |
Mania | Maintenance | Bipolar Depression | |
---|---|---|---|
1st line | None | • Psychoeducation (PE) | None |
2nd line | None | • Cognitive behavioural therapy (CBT) • Family-focused therapy (FFT) | • Cognitive behavioural therapy (CBT) • Family-focused therapy (FFT) |
3rd line | None | • Interpersonal and social rhythm therapy (IPSRT) • Peer support | • Interpersonal and social rhythm therapy (IPSRT) |
Insufficient evidence | None | Cognitive and functional remediation, dialectical behavioural therapy (DBT), family/caregiver interventions, mindfulness‐based cognitive therapy (MBCT), online interventions | Psychoeducation, cognitive and functional remediation, dialectical behavioural therapy (DBT), family/caregiver interventions, mindfulness‐based cognitive therapy (MBCT), online interventions |
Electroconvulsive therapy is a second line treatment for bipolar mania and bipolar (I and II) depression. It is well-tolerated and safe, and may be useful in cases where rapid resolution of symptoms is required, such as in pregnancy where there is concern about maternal/fetal well-being.
Coenzyme Q10, likely due to its antioxidant and anti-inflammatory properties, has been found to improve symptoms of bipolar depression.[45]
Guideline | Location | Year | Website | |
---|---|---|---|---|
Canadian Network for Mood and Anxiety Treatments (CANMAT) and International Society for Bipolar Disorders (ISBD) | Canada, International | 2018 | Link | |
American Psychiatric Association (APA) | USA | 2002 | • Guideline (2002) • Guideline Watch (2005) • Quick Reference |
|
National Institute for Health and Care Excellence (NICE) | UK | 2014 | Link | |
British Association for Psychopharmacology (BAP) | UK | 2016 | Link | |
Royal Australian and New Zealand College of Psychiatrists (RANZCP) | AUS, NZ | 2020 | Link |