Treatment of bipolar disorder
The emphasis of the treatment of bipolar disorder is on effective management of the long-term course of the illness, which can involve treatment of emergent symptoms. Treatment methods include pharmacological and psychological techniques.
Bipolar disorder is a serious and debilitating mental health disorder, which causes patients to experience extreme highs and lows, such as mania and major depression.[1] Bipolar disorder is often stigmatized as causing "crazy" behaviors, and physically alters the brain. This disorder affects the brain in many different ways, such as in the prefrontal cortex, which plays a big role in planning, attention, problem-solving, and memory, and in the hippocampus, which is essential for storing memories. It has been shown that patients with bipolar disorder have less total brain volume, grey and white matter, and more cerebral spinal fluid.[2]
Principles
The primary treatment for bipolar disorder consists of medications called mood stabilizers, which are used to prevent or control episodes of mania or depression. Medications from several classes have mood stabilizing activity. Many individuals may require a combination of medication to achieve full remission of symptoms.[3] As it is impossible to predict which medication will work best for a particular individual, it may take some trial and error to find the best medication or combination for a specific patient. Psychotherapy also has a role in the treatment of bipolar disorder. The goal of treatment is not to cure the disorder but rather to control the symptoms and the course of the disorder. Generally speaking, maintenance treatment of bipolar disorder continues long after symptom control has been achieved.
Following diagnostic evaluation, the treating clinician must determine the optimal treatment setting in order to ensure the patient's safety. Assessment of suicide risk is key, as the rate of suicide completion among those with bipolar disorder may be as high as 10–15%.[4] Hospitalization should be considered in patients whose judgment is significantly impaired by their illness, and those who have not responded to outpatient treatment; this may need to be done on an involuntary basis.[4] Treatment setting should regularly be re-evaluated to ensure that it is optimal for the patient's needs.
Treatment | NNT for depressive relapse | NNT for manic relapse | Efficacy in Acute Mania | Efficacy in Acute Depression | Common Side Effects | Serious Side Effects | Safety during pregnancy | Routes of Administration |
---|---|---|---|---|---|---|---|---|
Aripiprazole monotherapy | 50 | 6.2 | ++ | - | Weight gain, nausea, vomiting, constipation, akathisia, dizziness, extrapyramidal symptoms, headache, insomnia, sedation, tremor, blurred vision, anxiety, restlessness, fatigue | Seizure (0.1-0.3%), suicidal behaviour, blood clots (<1%), agranulocytosis, leukopenia (<1%), neutropenia(<1%), pancreatitis (<0.1%), metabolic syndrome, neuroleptic malignant syndrome, tardive dyskinesia, angioedema (<1%), rhabdomyolysis | Pregnancy Category: B3 (Au) C (US) |
Oral, Intramuscular |
Aripiprazole adjunct to lithium/valproate | 33.3 | 10 | ++ | - | As above | As above | As above | As above |
Lamotrigine monotherapy | 20.2 | 50.4 | - | ++/+ | Rash, abdominal pain, indigestion, diarrhoea, nausea, vomiting, dysmenorrhoea, rhinitis , pain
|
Drug hypersensitivity syndrome, aseptic meningitis
|
Pregnancy Category:
D (Au) |
Mucous membranes, oral |
Lithium monotherapy | 6.1 | 4.4 | ++ | ++/+ | Acne, hypothyroidism, weight gain, gastritis, xerostomia, nausea, leukocytosis, fine tremor, Hyperreflexia, Deep tendon, Nephrotoxicity, Polyuria, Potential sign of toxicity, Increased thirst, Potential sign of toxicity | Bradyarrhythmia (Severe), Brugada syndrome, Sinus node dysfunction, Transient reduction in peripheral circulation as a whole, Erythema multiforme, Ataxia, Potential sign of toxicity, Coma, Pseudotumor cerebri, Increased intracranial pressure and papilledema, Seizure, Blurred vision, Potential sign of toxicity, Tinnitus, Potential sign of toxicity, Giddiness, Potential sign of toxicity, Renal interstitial fibrosis, Angioedema |
Pregnancy Category:
D (Au) |
Oral |
Olanzapine monotherapy | 17.2 | 4.4 | +++ | ++/+ | Orthostatic hypotension, Peripheral edema (3% to 6%), Hypercholesterolemia (up to 24%), Hyperglycemia (0.1% to 17.4%), Increased appetite (3% to 24%), Increased prolactin level (31.2% to 61.1%), Serum triglycerides raised (up to 40%), Weight gain, Constipation, Xerostomia, Akathisia, Asthenia, Dizziness, Sedation, Tremor, Personality disorder (8%), Accidental injury (4% to 12%) | Sudden cardiac death, Diabetic coma with ketoacidosis, Diabetic ketoacidosis, Hyperglycemic hyperosmolar state, Acute hemorrhagic pancreatitis, Venous thromboembolism, Immune hypersensitivity reaction, Cerebrovascular disease, Seizure (0.9% ), Status epilepticus, Suicidal intent (0.1% to 1% ), Pulmonary embolism | Pregnancy Category: | Oral, intramuscular |
Olanzapine adjunct to lithium/valproate | 6.2 | 11.2 | +++ | - | As above | As above | As above | As above |
Quetiapine monotherapy | 3.3 | 2.4 | ++ | +++ | Orthostatic Hypertension, Tachycardia (0.5% to 7%), Serum cholesterol raised (7% to 18%), Serum triglycerides raised (8% to 22%), Weight gain (3% to 23%), Abdominal pain, Constipation, Increased appetite, Indigestion, Vomiting, Xerostomia, Increased liver enzymes, Backache, Asthenia, Dizziness, Extrapyramidal signs, Headache, Insomnia, Lethargy, Sedation, Tremor, Agitation (6% to 20%), Nasal congestion, Pharyngitis (4% to 6%), Fatigue, Pain | Syncope (0.3% to 1%), Diabetic ketoacidosis, Pancreatitis, Agranulocytosis, Leukopenia, Neutropenia (0.3%), Anaphylaxis, Seizure (0.05% to 0.5%), Tardive dyskinesia (0.1% to less than 5%), Suicidal thoughts, Priapism, Neuroleptic malignant syndrome (rare ) | Pregnancy Category: | Oral |
Quetiapine plus lithium/valproate | 5.9 | 7.1 | +++/++ | +++ | As above | As above | As above | As above |
Risperidone | 4 | 36.4 | +++ | - | Rash, hyperprolactinaemia, weight gain, constipation, diarrhoea, excessive salivation, increased appetite, indigestion, nausea, vomiting, upper abdominal pain, dry mouth, extrapyramidal side effects, dizziness, sedation, akathisia, blurred vision, anxiety, cough, nasal congestion, nasopharyngitis, pain in throat, upper respiratory tract infection, fatigue and generalised pains | Prolonged QT interval, sudden cardiac death, syncope, diabetic ketoacidosis, hypothermia, pancreatitis, Agranulocytosis, Leukopenia, Neutropenia, Thrombocytopenia, Thrombotic thrombocytopenic purpura, stroke, seizure, tardive dyskinesia, priapism, pulmonary embolism, neuroleptic malignant syndrome | Pregnancy Category: | Oral, Intramuscular |
Risperidone plus treatment as usual | 15.8 | 7.9 | +++ | - | As above | As above | As above | As Above |
Valproate monotherapy |
10.5 | 21.3 | ++/+ | - | Abdominal pain, diarrhoea, indigestion, loss of appetite, nausea, vomiting, asthenia, dizziness, feeling nervous, headache, insomnia, sedation, tremor, Amblyopia, Blurred vision, Diplopia, infectious disease, influenza | Palpitation, tachycardia, hyperammonaemia, pancreatitis, thrombocytopaenia, liver failure, immune hypersensitivity reaction, hyperammonaemic encephalopathy, deafness | Pregnancy Category:
Has the highest propensity of all anticonvulsants for causing birth defects. Around 6-11% of children born to mothers that used the drug during pregnancy are born with birth defects. |
Oral |
Ziprasidone and treatment as usual | 55.1 | 14.1 | ++/+ | - | Rash, weight gain, constipation, diarrhoea, indigestion, nausea, vomiting, xerostomia, akathisia, anxiety, asthenia, extrapyramidal side effects, dizziness, headache, sedation, abnormal vision, respiratory tract infection | Prolonged QT interval, syncope, torsades de pointes, diabetes mellitus, hyperglycaemia, hyperprolactinaemia, dysphagia, bone marrow depression, neuroleptic malignant syndrome, seizure, tardive dyskinesia, priapism | Pregnancy Category: | Oral, intramuscular |
Legend:
- negligible/very low/clinically insignificant effect
+ weak effect
++ moderate-level effect
+++ strong effect
Regulatory status of mood stabilisers
Drug[8][11] | FDA approved for acute mania/mixed episodes? | FDA approved for bipolar depression? | FDA approved for bipolar maintenance? | TGA approved for acute mania/mixed episodes? | TGA approved for bipolar depression? | TGA approved for bipolar maintenance? | MHRA approved for acute mania/mixed episodes? | MHRA approved for bipolar depression | MHRA approved for bipolar maintenance |
---|---|---|---|---|---|---|---|---|---|
Aripiprazole | Yes | No | Yes (as an adjunct, yes) | No | No | Yes | Yes | No | Yes (for mania prevention) |
Asenapine | Yes | No | No | Yes | No | Yes | Yes | No | No |
Carbamazepine | Yes | No | No | No | No | Yes | No | No | Yes |
Cariprazine | Yes | Yes[12] | No | ||||||
Haloperidol | No | No | No | Yes | No | No | No | No | No |
Lamotrigine | No | No | Yes | No | No | Yes | No | No | Yes (depressive episodes) |
Lithium | Yes | No | Yes | Yes | No | Yes | Yes | No | Yes |
Olanzapine | Yes | No (yes when in conjunction with fluoxetine) | Yes | Yes | No | Yes (as an adjunct to valproate/lithium) | Yes | No | No |
Quetiapine | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Lurasidone | Yes | ||||||||
Risperidone | Yes | No | Yes | Yes | No | Yes | Yes | No | No |
Valproate | Yes | No | No | No | No | Yes | Yes | No | Yes |
Ziprasidone | Yes | No | No (yes as adjunct) | Yes | No | No | No | No | No |
Zuclopenthixol | No | No | No | Yes | No | No | No | No | No |
Mood stabilizers
Lithium salts
Its exact mechanism of action is uncertain, although there are several possibilities such as inhibition of
Potential side effects from
Lithium levels should be above 0.6 mEq/L to reduce both manic and depressive episodes in patients.[16] A recent review concludes that the standard lithium serum level should be 0.60–0.80 mmol/L with optional reduction to 0.40 0.60 mmol/L in case of good response but poor tolerance or an increase to 0.80 1.00 mmol/L in case of insufficient response and good tolerance.[17]
Monitoring is generally more frequent when lithium is being initiated, and the frequency can be decreased once a patient is stabilized on a given dose.
Anticonvulsants
A number of
Zonisamide (trade name Zonegran), another anti-convulsant, also may show promise in treating bipolar depression.[19] Various other anti-convulsants have been tested in bipolar disorder, but there is little evidence of their effectiveness.[3] Other anti-convulsants effective in some cases and being studied closer include phenytoin, levetiracetam, pregabalin and valnoctamide.[20]
Each anti-convulsant agent has a unique side-effect profile.
Side effects of
Atypical antipsychotic drugs
Antipsychotics work best in the manic phase of bipolar disorder.[21] Second-generation or
In light of recent evidence,
The
New treatments
A variety of other agents have been tried in bipolar disorder, including
Cognitive effects of mood stabilizers
Bipolar patients taking antipsychotics have lower scores on tests of memory and full-scale IQ than patients taking other mood stabilisers.[36] Use of both typical and atypical antipsychotics is associated with risk of cognitive impairment, but the risk is higher for antipsychotics with more sedating effects.
Among bipolar patients taking anticonvulsants, those on lamotrigine have a better cognitive profile than those on carbamazepine, valproate, topiramate, and zonisamide.[37]
Although decreased verbal memory and slowed psychomotor speed are common side effects of lithium use[38][39] these side effects usually disappear after discontinuation of lithium. Lithium may be protective of cognitive function in the long term since it promotes neurogenesis in the hippocampus and increases grey matter volume in the prefrontal cortex.[40]
Antidepressants
A recent large-scale study found that severe depression in patients with bipolar disorder responds no better to a combination of antidepressant medications and mood stabilizers than it does to mood stabilizers alone and that antidepressant use does not hasten the emergence of manic symptoms in patients with bipolar disorder.[41]
The concurrent use of an antidepressant and a mood stabilizer, instead of mood stabilizer monotherapy, may lower the risk of further bipolar depressive episodes in patients whose most recent depressive episode has been resolved.
Side effects vary greatly among different classes of antidepressants.
Antidepressants are helpful in preventing suicides in people with bipolar disorder when they go in for the depressive phase.[45]
NMDA-receptor antagonists
In a
A more recent double-blind, placebo-controlled study by the same group found that ketamine treatment resulted in a similarly rapid alleviation of suicidal ideation in 15 patients with bipolar depression.[47]
Ketamine is used as a
Dopamine agonists
In a single controlled study of twenty one patients, the dopamine D3 receptor agonist pramipexole was found to be highly effective in the treatment of bipolar depression. Treatment was initiated at 0.125 mg thrice daily and increased at a rate of 0.125 mg thrice daily to a limit of 4.5 mg per day until the patients' condition satisfactorily responded to the medication or they could not abide the side effects. The final average dosage was 1.7 mg ± 0.90 mg per day. The incidence of hypomania in the treatment group was no greater than in the control group.[48]
Psychotherapy
Certain types of psychotherapy, used in combination with medication, may provide some benefit in the treatment of bipolar disorders. Psychoeducation has been shown to be effective in improving patients' compliance with their lithium treatment.[49] Evidence of the efficacy of family therapy is not adequate to support unrestricted recommendation of its use.[50] There is "fair support" for the utility of cognitive therapy. Evidence for the efficacy of other psychotherapies is absent or weak,[51] often not being performed under randomized and controlled conditions.[52] Well-designed[52] studies have found interpersonal and social rhythm therapy to be effective.[53]
Although medication and psychotherapy cannot cure the illness, therapy can often be valuable in helping to address the effects of disruptive manic or depressive episodes that have hurt a patient's career, relationships or self-esteem. Therapy is available not only from psychiatrists but from social workers, psychologists and other licensed counselors.
Jungian therapy
Jungian authors have likened the
Lifestyle changes
Sufficient sleep
If sleeping is disturbed, the symptoms can occur. Sleep disruption may actually exacerbate the mental illness state. Those who do not get enough sleep at night, sleep late and wake up late, or go to sleep with some disturbance (e.g. music or charging devices) have a greater chance of having the symptoms and, in addition, depression. It is highly advised by psychiatric authorities to not sleep too late and to get enough high quality sleep. [61]
Self-management and self-awareness
Understanding the symptoms, when they occur and ways to control them using appropriate medications and psychotherapy generally helps those diagnosed with bipolar disorder to lead a psychologically healthier life. Prodrome symptom detection has been shown to be used effectively to anticipate onset of manic episodes[62][63] and requires close monitoring of bipolar symptoms. Because the offset of the symptoms is often gradual, even subtle mood changes and activity levels are monitored to help avoid a relapse.[64] Maintaining a mood chart[65] is a specific method used by patients and doctors to identify mood, environmental and activity triggers.[66]
Stress reduction
Forms of stress may include having too much to do, too much complexity and conflicting demands among others. There are also stresses that come from the absence of elements such as human contact, a sense of achievement, constructive creative outlets, and occasions or circumstances that will naturally elicit positive emotions. Stress reduction will involve reducing things that cause anxiety and increasing those that generate happiness. It is not enough to just reduce the anxiety.[citation needed]
Co-morbid substance use disorder
Co-occurring substance misuse disorders, which are extremely common in bipolar patients, can cause a significant worsening of bipolar symptomatology and can cause the emergence of affective symptoms. The treatment options and recommendations for substance use disorders is wide but may include certain pharmacological and nonpharmacological treatment options.[67]
The role of cannabinoids
Acute cannabis intoxication transiently produces perceptual distortions, psychotic symptoms and reduction in cognitive abilities in healthy persons and in severe mental disorder,[68][69][70] and may impair the ability to safely operate a motor vehicle.[71]
Cannabis use is common in bipolar disorder;[72][73] and is a risk factor for a more severe course of the disease by increasing frequency and duration of episodes.[74][75][76][77] It is also reported to reduce age at onset.[78][79]
Other treatments
Omega-3 fatty acids
Omega-3 fatty acids may be found in fish,
Exercise
Exercise has also been shown to have antidepressant effects.[81]
Electroconvulsive therapy
Electroconvulsive therapy (ECT) may have some effectiveness in mixed mania states, and good effectiveness in bipolar depression, particularly in the presence of psychosis.[4] It may also be useful in the treatment of severe mania that is non-responsive to medications.[82][83]
The most frequent side effects of ECT include
Ketogenic diet
Because many of the medications that are effective in treating epilepsy are also effective as mood stabilizers, it has been suggested that the
See also
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Further reading
- Mitchell PB, Malhi GS, Ball JR (August 2004). "Major advances in bipolar disorder". The Medical Journal of Australia. 181 (4): 207–10. S2CID 18993165.
External links
- Guzman F (2012-01-27). "Video Lecture: First and Second Generation Antipsychotics for the Treatment of Bipolar Disorder". Psychopharmacology Institute. Retrieved 2012-08-04.
- "Bipolar Disorder Information". Psych Central. 2016-08-29.