MEDI7111 Lecture Notes - Lecture 12: Psychomotor Agitation, Comorbidity, L-Dopa
Bipolar Disorder
The lifetime risk of bipolar disorder is ~1%, making it an uncommon mental illness. Bipolar
disorder can be categorised into 3 sub classes of the disorder; bipolar type 1, bipolar type 2
and cyclothymic disorder.
Bipolar
Disorders
Bipolar 1 Bipolar 2 Cyclothymic Disorder
Essential
Features
At least one episode of
mania in the person’s
lifetime
At least 1 episode of
major depression and
at least 1 episode of
hypomania in the
person’s lifetime
At least two years of
hypomanic and
depressive periods
which do not meet the
criteria for mania,
hypomania or major
depression
General
Description
-Alternating
episodes of
mania/hypomania
and major
depression
-May have differing
ratios of mania to
depression
-Alternating
episodes of
hypomania and
major depression
-No full manic
episodes
-More often
depressed than
hypomanic
-Alternating
episodes of mild
hypomania and
mild depression
Mania vs Hypomania
Understanding the difference between mania and hypomania is important as it can help
distinguish between bipolar 1 &2 disorders. Both are defined by a distinct period of
abnormally and persistently elevated, expansive, or irritable mood & abnormally and
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Document Summary
The lifetime risk of bipolar disorder is ~1%, making it an uncommon mental illness. Bipolar disorder can be categorised into 3 sub classes of the disorder; bipolar type 1, bipolar type 2 and cyclothymic disorder. At least two years of hypomanic and depressive periods which do not meet the criteria for mania, hypomania or major depression. Alternating episodes of mild hypomania and mild depression. At least one episode of mania in the person"s lifetime. At least 1 episode of major depression and at least 1 episode of hypomania in the person"s lifetime. May have differing episodes ratios of mania to depression. Understanding the difference between mania and hypomania is important as it can help distinguish between bipolar 1 &2 disorders. Both are defined by a distinct period of abnormally and persistently elevated, expansive, or irritable mood & abnormally and persistently increased goal-directed activity or energy. In addition, they must have three or more of the following:
