Bipolar Disorder

Bipolar I Disorder: This disorder is characterised by manic episodes lasting at least 7 days or by manic symptoms so severe that immediate hospital care is needed. Depressive episodes are also common, typically lasting for at least 2 weeks.

Bipolar II Disorder: Unlike Bipolar I, this disorder is defined by a pattern of depressive episodes and hypomanic episodes, but not the full-blown manic episodes that are typical of Bipolar I Disorder.

Bipolar I Disorder:

• Criteria: The hallmark of Bipolar I Disorder is the occurrence of at least one manic episode. The manic episode may be preceded or followed by hypomanic or major depressive episodes, but these are not required for the diagnosis.
• Manic Episode: This is a distinct period of abnormally and persistently elevated, expansive, or irritable mood and abnormally and persistently increased goal-directed activity or energy, lasting at least one week and present most of the day, nearly every day. During this period, three (or more) of the following symptoms must be present: inflated self-esteem or grandiosity, decreased need for sleep, more talkative than usual or pressure to keep talking, flight of ideas or subjective experience that thoughts are racing, distractibility, increase in goal-directed activity, or excessive involvement in activities with a high potential for painful consequences.
• Severity: Manic episodes can be severe enough 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.

Bipolar I Criteria Breakdown:

Criterion A for Manic Episode:

• A distinct period of abnormally and persistently elevated, expansive, or irritable mood and abnormally and persistently increased goal-directed activity or energy, lasting at least one week and present most of the day, nearly every day (or any duration if hospitalization is necessary).

Criterion B for Manic Episode:

• During the period of mood disturbance and increased energy or activity, three (or more) of the following symptoms (four if the mood is only irritable) are present to a significant degree and represent a noticeable change from usual behaviour:

1. Inflated self-esteem or grandiosity.
2. Decreased need for sleep (e.g., feels rested after only 3 hours of sleep).
3. More talkative than usual or pressure to keep talking.
4. Flight of ideas or subjective experience that thoughts are racing.
5. Distractibility (i.e., attention too easily drawn to unimportant or irrelevant external stimuli), as reported or observed.
6. Increase in goal-directed activity (either socially, at work or school, or sexually) or psychomotor agitation.
7. Excessive involvement in activities that have a high potential for painful consequences (e.g., engaging in unrestrained buying sprees, sexual indiscretions, or foolish business investments).

Criterion C for Manic Episode:

• The 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.

Criterion A for Major Depressive Episode:

• Five (or more) of the following symptoms have been present during the same 2-week period and represent a change from previous functioning; at least one of the symptoms is either (1) depressed mood or (2) loss of interest or pleasure.

Criterion B for Major Depressive Episode:

• The symptoms cause clinically significant distress or impairment in social, occupational, or other important areas of functioning.

Criterion C for Major Depressive Episode:

• The episode is not attributable to the physiological effects of a substance or another medical condition.

Additional Criteria for Bipolar I Disorder include:

• The occurrence of the manic and major depressive episodes is not better explained by schizoaffective disorder, schizophrenia, schizophreniform disorder, delusional disorder, or other specified and unspecified schizophrenia spectrum and other psychotic disorders.
• There is also consideration of the impact of substance use or a medical condition on the symptoms.

Bipolar II Disorder:

• Criteria: Bipolar II Disorder is defined by a pattern of depressive episodes and hypomanic episodes, but not the full-blown manic episodes that are typical of Bipolar I Disorder.
• Hypomanic Episode: This involves a period of abnormally and persistently elevated, expansive, or irritable mood and abnormally and persistently increased activity or energy, lasting at least four consecutive days and present most of the day, nearly every day. During the period of mood disturbance, three (or more) of the symptoms mentioned for a manic episode must be present to a significant degree, but not severe enough to cause marked impairment in social or occupational functioning or to necessitate hospitalization. There are no psychotic features.
• Major Depressive Episode: In addition to hypomanic episodes, there must be at least one major depressive episode, lasting at least two weeks, during which five or more of the following symptoms are present: depressed mood, markedly diminished interest or pleasure in activities, significant weight loss when not dieting or weight gain, insomnia or hypersomnia, psychomotor agitation or retardation, fatigue or loss of energy, feelings of worthlessness or excessive or inappropriate guilt, diminished ability to think or concentrate, or indecisiveness, and recurrent thoughts of death, recurrent suicidal ideation, or a suicide attempt.

Bipolar II Criteria Breakdown:

Certainly. Bipolar II Disorder is characterised in the DSM-5 with specific criteria, much like other mental health conditions. However, it’s important to note that the DSM-5 doesn’t strictly use an A, B, C format for Bipolar II Disorder as it does for some other disorders. Instead, the criteria for Bipolar II Disorder are more narrative and involve the description of specific types of episodes. Here’s an outline based on the DSM-5:

Presence of One or More Major Depressive Episodes:

• These episodes are defined by symptoms such as depressed mood, loss of interest or pleasure in almost all activities, significant weight loss or gain, insomnia or hypersomnia, psychomotor agitation or retardation, fatigue, feelings of worthlessness or excessive guilt, diminished ability to think or concentrate, and recurrent thoughts of death.

Presence of At Least One Hypomanic Episode:

• Hypomanic episodes are characterised by a distinct period of abnormally and persistently elevated, expansive, or irritable mood and abnormally and persistently increased activity or energy, lasting at least four consecutive days. The episode should be clearly different from the usual non-depressed mood, with observable changes in functioning.

No History of a Manic Episode:

• This criterion differentiates Bipolar II Disorder from Bipolar I Disorder. In Bipolar II, there should be no history of a full manic episode. A manic episode is more intense than a hypomanic episode and often requires hospitalization.

Clinical Significance:

• The mood episodes must cause clinically significant distress or impairment in social, occupational, or other important areas of functioning.

Exclusion of Other Disorders:

• The symptoms should not be attributable to the physiological effects of a substance (e.g., drug abuse, medication) or another medical or neurological condition.

Rule Out Schizoaffective Disorder:

• Ensure that the mood episodes are not better explained by schizoaffective disorder, schizophrenia, schizophreniform disorder, delusional disorder, or other specified or unspecified schizophrenia spectrum and other psychotic disorders.

Duration and Exclusion Criteria:

• For hypomanic episodes, symptoms must be present for at least four days, and for major depressive episodes, symptoms must be present nearly every day for at least two weeks.

Bipolar II Disorder is complex and involves patterns of mood changes that significantly impact a person’s life. Diagnosis and treatment should be managed by a qualified mental health professional.

The exact cause of Bipolar disorders is unknown, but a combination of genetics, environment, and altered brain structure and chemistry may play a role. Treatment usually involves a combination of medications and psychotherapy to manage symptoms. It’s important to note that these disorders can vary greatly in their pattern of mood swings and severity.