December 25, 2007
Bipolar disorder, once known as manic-depression
By Arthur Buchanan
Bipolar disorder, once known as manic-depression, is a psychiatric diagnosis referring to a mental health condition defined by periods of extreme, often inappropriate, and sometimes unpredictable mood states.
Bipolar individuals generally experience mania, hypomania or mixed states alternating with clinical depression and euthymic or normal range of mood over varied periods of time. There are many variations of this disorder. A person with bipolar disorder generally tends to experience more extreme states of mood than other people. Moods can change quickly (many times a day) or last for months.
Bipolar individuals tend to have very 'black and white' thinking, where everything in life is either a positive aspect or a negative. Mood patterns of this nature are associated with distress and disruption, and a relatively high risk of suicide. Bipolar disorder is also associated with a variety of cognitive deficits, in particular, difficulty in organizing and planning. The disorder may also skew the ability to judge others' emotion, and alter sense of awareness.
Bipolar disorder is usually treated with medications and/or therapy or counselling.
As well as being linked to disability, studies have suggested a correlation between creativity and bipolar disorder, although it is unclear what the relationship is between the two.[2][3][4] Studies have also indicated increased striving for, and sometimes obtaining, goals and achievements more generally; in other words, many with bipolar disorder tend to be more driven, extremely goal oriented, and hard working.
Contents
* 1 Aspects of bipolar disorder
o 1.1 The Depressive Phase
o 1.2 Mania
o 1.3 Hypomania
o 1.4 Mixed state
o 1.5 Rapid cycling
o 1.6 Cognition
o 1.7 Creativity
* 2 Suicide risk
* 3 Divorce rate
* 4 Diagnosis
o 4.1 Diagnostic criteria
o 4.2 Treatment lag
o 4.3 Children
* 5 Treatment
o 5.1 Prognosis and long-term treatment
* 6 Relapse
* 7 Research findings
o 7.1 Heritability or inheritance
o 7.2 Genetic research
* 8 Ongoing research
o 8.1 Medical imaging
o 8.2 New treatments
* 9 Etiology
* 10 History of bipolar disorder
* 11 Epidemiology
* 12 Mortality
* 13 References
* 14 Further reading
* 15 See also
* 16 External links
Aspects of bipolar disorder
Bipolar disorder is commonly categorised as either Bipolar Type I, where an individual experiences full-blown mania, or Bipolar Type II, in which the hypomanic "highs" do not go to the extremes of mania. The latter is much more difficult to diagnose, since the hypomanic episodes may simply appear as a period of successful high productivity and is reported less frequently than a distressing depression. Psychosis can occur, particularly in manic periods. There are also 'rapid cycling' subtypes.
Because there is so much variation in the severity and nature of mood-related problems, the concept of a bipolar spectrum is often employed, which includes cyclothymia. There is no consensus as to how many 'types' of bipolar disorder exist (Akiskal and Benazzi, 2006). Many people with bipolar disorder experience severe anxiety and are very irritable (to the point of rage) when in a manic state, while others are euphoric and grandiose.
The Depressive Phase
Signs and symptoms of the depressive phase of bipolar disorder include (but in no way are limited to): persistent feelings of sadness, anxiety, guilt, anger, isolation and/or hopelessness, disturbances in sleep and appetite, fatigue and loss of interest in usually enjoyed activities, problems concentrating, loneliness, self-loathing, apathy or indifference, depersonalization, loss of interest in sexual activity, shyness or social anxiety, irritability, chronic pain (with or without a known cause), lack of motivation, and morbid/suicidal ideation.[6]
Mania
Main article: Mania
People having a manic episode of mood can be elated, euphoric, irritated and/or suspicious. There will be an increase in physical and mental rate and quality. Increased energy and over-activity is common; speech can become racing. The need for sleep is reduced. Attention span is low and easily distracted. Unrealistic, grandiose or over optimistic ideas may be voiced or attempted. Social skills are impaired, and impractical ideas may lead to financial and relationship indiscretions.
Hypomania
Main article: Hypomania
Hypomania is generally a less destructive state than mania, and people in the hypomanic phase generally experience less of the symptoms of mania than those in a full-blown manic episode. The duration is usually also shorter than in mania. This is often a very 'artistic' state of the disorder, where there is a flight of ideas, extremely clever thinking, and an increase in energy.
Mixed state
Main article: Mixed state (psychiatry)
In the context of bipolar disorder, a mixed state is a condition during which symptoms of mania and clinical depression occur simultaneously (for example, agitation, anxiety, aggressiveness or belligerence, confusion, fatigue, impulsiveness, insomnia, irritability, morbid and/or suicidal ideation, panic, paranoia, persecutory delusions, pressured speech, racing thoughts, restlessness, and rage).
Mixed episodes can be the most volatile of the bipolar states, as moods can easily and quickly be triggered or shifted. Suicide attempts, substance abuse, and self-mutilation may occur during this state.
Rapid cycling
Rapid cycling, defined as having four or more episodes per year, is found in a significant fraction of patients with bipolar disorder. It has been associated with greater disability or a worse prognosis, due to the confusing changeability and difficulty in establishing a stable state. Rapid cycling can be induced or made worse by antidepressants.
Cognition
Numerous studies show that bipolar disorder involves certain cognitive deficits or impairments, even in states of remission.[9] Deborah Yurgelun-Todd of McLean Hospital in Belmont, Massachusetts has argued these deficits should be included as a core feature of bipolar disorder.
According to McIntyre et al. (2006), "study results now press the point that neurocognitive deficits are a primary feature of BD; they are highly prevalent and persist in the absence of overt symptomatology. Although disparate neurocognitive abnormalities have been reported, disturbances in attention, visual memory, and executive function are most consistently reported."[10]
Creativity
Main article: Creativity and mental illness
A number of recent studies have observed a correlation between creativity and bipolar disorder, although it is unclear in which direction the cause lies, or whether both conditions are caused by some third, unknown, factor. It has been hypothesized that temperament may be one such factor.
Suicide risk
Although many people with bipolar disorder who attempt suicide never actually complete it, the annual average suicide rate in males and females with diagnosed bipolar disorder (0.4%25) is 10 to more than 20 times that in the general population
Individuals with bipolar disorder tend to become suicidal, especially during mixed states such as dysphoric mania and agitated depression.[citation needed] Persons suffering from Bipolar II have high rates of suicide compared to persons suffering from other mental illnesses, including Major Depression. Major Depressive episodes are part of the Bipolar II experience, and there is evidence that sufferers of this disorder spend proportionally much more of their life in the depressive phase of the illness than their counterparts with Bipolar I Disorder (Akiskal %26 Kessler, 2007).
Divorce rate
This article or section deals primarily with the United States and does not represent a worldwide view of the subject.
Please improve this article or discuss the issue on the talk page.
The divorce rate for couples where at least one spouse is bipolar is 90%25. For comparison purposes, the general divorce rate is commonly held to be about half as much (around 50%25), implying that this illness causes substantial additional burdens on married life.
Diagnosis
Diagnostic criteria
Main article: Current diagnostic criteria for bipolar disorder
Flux is the fundamental nature of bipolar disorder. Both within and between individuals with the illness, energy, mood, thought, sleep, and activity are among the continually changing biological markers of the disorder. The diagnostic subtypes of bipolar disorder are thus static descriptions–snapshots, perhaps–of an illness in continual change, with a great diversity of symptoms and varying degrees of severity. Individuals may stay in one subtype, or change into another, over the course of their illness. The DSM V, to be published in 2011, will likely include further and more accurate sub-typing (Akiskal and Ghaemi, 2006).
There are currently four types of bipolar illness. The Diagnostic and Statistical Manual of Mental Disorders-IV-TR (DSM-IV-TR) details four categories of bipolar disorder, Bipolar I, Bipolar II, Cyclothymia, and Bipolar Disorder NOS (Not Otherwise Specified).
For a diagnosis of Bipolar I disorder according to the DSM-IV-TR, there requires one or more manic or mixed episodes. A depressive episode is not required for the diagnosis of Bipolar I disorder but it frequently occurs.
Bipolar II, which occurs more frequently is usually characterized by at least one episode of hypomania and at least one depression.
A diagnosis of Cyclothymic Disorder requires the presence of numerous hypomanic episodes, intermingled with depressive episodes that do not meet full criteria for major depressive episodes. The main idea here is that there is a low-grade cycling of mood which appears to the observer as a personality trait, but interferes with functioning.
If an individual clearly seems to be suffering from some type of bipolar disorder but does not meet the criteria for one of the subtypes above, he or she receives a diagnosis of Bipolar Disorder NOS (Not Otherwise Specified).
Although a patient will most likely be depressed when they first seek help, it is very important to find out from the patient or the patient's family or friends if a manic or hypomaniac episode has ever been present, using careful questioning. This will prevent misdiagnosis of Depressive Disorder and avoids the use of an antidepressant which may trigger a "switch" to hypomania or mania or induce rapid cycling. Recent screening tools such as the Hypomanic Check List Questionnaire (HCL-32) have been developed to assist the quite often difficult detection of Bipolar II disorders.
Treatment lag
The behavioral manifestations of bipolar disorder are often not understood by patients nor recognized by mental health professionals, so people may suffer unnecessarily for over 10 years in some cases before receiving proper treatment.
That treatment lag is apparently not decreasing, even though there is now increased public awareness of the illness in popular magazines and health websites. Recent TV specials, for example the BBC's The Secret Life of the Manic Depressive, MTV's True Life: I'm Bipolar, talk shows, and public radio shows, and the greater willingness of public figures to discuss their own bipolar disorder, have focused on mental illnesses thereby further raising public awareness.
Despite this increased focus, individuals are still commonly misdiagnosed.
Children
Main article: Bipolar disorder in children
Children with bipolar disorder do not often meet the strict DSM-IV definition. In pediatric cases, the cycling can occur very quickly (see section above on rapid cycling).
Children with bipolar disorder tend to have rapid-cycling or mixed-cycling. Rapid cycling occurs when the cycles between depression and mania occur quickly, sometimes within the same day or the same hour. When the symptoms of both mania and depression occur simultaneously, mixed cycling occurs.
Often other psychiatric disorders are diagnosed in bipolar children. These other diagnoses may be concurrent problems, or they may be misdiagnosed as bipolar disorder. Depression, ADHD, ODD, schizophrenia, and Tourette syndrome are common comorbid conditions.
Misdiagnosis can lead to incorrect medication. Incorrect medications can trigger mania and/or suicidal ideation and attempts.
Treatment
Main article: Treatment of bipolar disorder
Currently, bipolar disorder cannot be cured, though psychiatrists and psychologists believe that it can be managed.
The emphasis of treatment is on effective management of the long-term course of the illness, which usually involves treatment of emergent symptoms. Treatment methods include pharmacological and psychotherapeutic techniques.
Prognosis and long-term treatment
A good prognosis results from good treatment which, in turn, results from an accurate diagnosis. Because bipolar disorder continues to have a high rate of both under-diagnosis and misdiagnosis, it is often difficult for individuals with the illness to receive timely and competent treatment.
Bipolar disorder is a severely disabling medical condition. However, with appropriate treatment, many individuals with bipolar disorder can live full and satisfying lives. Persons with bipolar disorder are likely to have periods of normal or near normal functioning between episodes.
Ultimately one's prognosis depends on many factors, which are, in fact, under the individual's control: the right medicines; the right dose of each; a very informed patient; a good working relationship with a competent medical doctor; a competent, supportive, and warm therapist; a supportive family or significant other; and a balanced lifestyle including a regulated stress level, regular exercise and regular sleep and wake times.
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Arthur Buchanan
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Tags: Bipolar Disorder, Manic Depression




