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bipolardisorderindsm-iv-centerforaddictions双相情感障碍在dsm-iv中心为成瘾

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    • 1、,Bipolar Disorder in DSM-IV,Bipolar I disorder: manic episode(s) or mixed episode(s) plus MDE(s) Bipolar II disorder: major depressive episode(s) plus hypomanic episode(s) Cyclothymia: hypomanic symptoms plus depressive symptoms,Bipolar Disorders: DSM-IV Nosology,Criteria Mania Hypomania Major depression Mixed state,BPD I Required Possible Possible Possible,BPD II No Required Required No,Cyclothymia No No No No,Manic Episode: Diagnostic Criteria,Elevated, expansive, or irritable mood for 1 week

      2、or longer, plus 3 or more of the following Inflated self-esteem or grandiosity Decreased need for sleep Pressured speech Racing thoughts/flight of ideas Distractibility Psychomotor agitation/increased goal-directed activity Excessive involvement in high-risk activities,Manic Episode: Differential Diagnoses,Differential diagnosis,Consider if . . .,Mood disorder due to a general medical condition Substance-induced mood disorder Hypomanic episode Mixed episode,Major medical condition present First

      3、episode at 50 years of age Symptoms in context of intoxication or withdrawal History of treatment for depression Mood disturbance not severe enough to require hospitalization or impair functioning Manic episode and MDE in 1 week,Manic Episode: Differential Diagnoses (cont.),AD/HD,Early childhood mood disturbance onset Chronic rather than episodic course No clear onsets and offsets No abnormally elevated mood No psychotic features,American Psychiatric Association. Diagnostic and Statistical Manua

      4、l of Mental Disorders (DSM-IV). 4th ed. 1994.,Differential diagnosis,Consider if . . .,Depressed mood and/or loss of interest or pleasure 2 weeks duration Associated symptoms Physical: insomnia/hypersomnia, appetite/weight change, decreased energy, psychomotor change Psychological: feelings of guilt or worthlessness, poor concentration/indecisiveness, thoughts of death/suicidal intentions (SI),Major Depressive Episode: DSM-IV Criteria,and 4 of the following symptoms,Physical Sleep disorder Appet

      5、ite change Fatigue Psychomotor retardation,Psychological Low self esteem/guilt Poor concentration/ indecisiveness Thoughts of death/SI,Mixed Episode: Diagnostic Criteria,Criteria met for both manic episode + MDE for 1 week Symptoms Are sufficient to impair functioning or Necessitate hospitalization or Are accompanied by psychotic features,Characteristics BPD I BPD II Prevalence 1.6% 0.5% Ethnic/racial differential None None Gender differential M = F FM (?),Bipolar Disorders: Epidemiology,Charact

      6、eristics BPD I BPD II,Bipolar Disorders: Epidemiology,Hypomanic episodes in BPD II immediately precede or follow MDEs in 60% to 70% of cases First-degree relatives may have increased rates of BPD I, BPD II, and MDD,Recurrent in 90% of cases First-degree relatives have increased rates of BPD I, BPD II, and MDD,Course Familial pattern,Epidemiology,Peak age of onset: adolescence through early 20s Onset of first manic episode after age 40 years is “red flag” to consider substance use or general medi

      7、cal condition Seasonal variation Depression more common in spring and autumn Mania more common in summer,Diagnostic Dilemmas: Unipolar Versus Bipolar,No evidence of hypomania, cyclothymia, hyperthymic personality, or family history of BPD 1 manic episode Recurrent major depression with hypomania and/or cyclothymic temperament Recurrent major depression without spontaneous hypomania but often with hyperthymic temperament and/or family history of BPD,Unipolar BPD I BPD II BPD NOS,Etiology,Heritabi

      8、lity,Evidence for heritability is much stronger for bipolar than for unipolar disorders Specific genetic association has not been consistently replicated,EVIDENCE FOR HERITABILITY OF BIPOLAR DISORDER,Family Studies- First degree relatives are 8 to 18 times more likely to have Bipolar I 2 to 10 times to have MDD. Risk is 25% if one parent has illness, and 50% to 75% with both parents affected,FAMILY STUDIES,The majority of individuals with bipolar disorder have a positive family history of some t

      9、ype of mood disorder About 50% of all bipolar I patients have at least one parent with a mood disorder,ADOPTION STUDIES,Prevalence of bipolar disorder in adopted away offspring corresponds to rates in biological, but not adoptive relatives Twin Studies- Concordance rate in MZ twins is 33 to 90%, in DZ is 5 to 25%,Cognitive Deficits,Working memory Sustained attention Abstract reasoning Visuomotor skills Verbal memory Verbal fluency Cognitive flexibility General cognitive functioning,Potential Explanations for Cognitive Deficits,Iatrogenic or Alcohol use Temporary functional changes Degenerative brain changes Permanent structural lesions Permanent functional alterations of neural networks underlying affect and cognition,Alcohol Use,Alcohol use occurs in 30-50% of cases Impairs memory and executive functioning Gorp et al (1998) Compared BP only, BP + AD, Control BP + AD BP only for cognitive impairment No difference between Control and BP only Other studies have reported

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