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Published byHector Norris Modified over 8 years ago
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BIPOLAR DISORDER DR GIAN LIPPI CONSULTANT PSYCHIATRIST
UNIVERSITY OF PRETORIA & WESKOPPIES HOSPITAL FORENSIC UNIT
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CONTENTS SYMPTOMS & EPISODES DSM-IV-TR CRITERIA FOR EPISODES SUBTYPES
DSM-IV-TR CRITERIA FOR DIAGNOSIS & SPECIFIERS BIPOLAR DEPRESSION (vs UNIPOLAR DEPRESSION) EPIDEMIOLOGY AETIOLOGY
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SYMPTOMS & EPISODES DEPRESSIVE EPISODES MANIC EPISODES
- SAME CRITERIA & SYMPTOMS AS A MAJOR DEPRESSIVE EPISODE MANIC EPISODES - DISTINCT PERIODS OF ABNORMALLY & PERSISTENTLY ELEVATED, EXPANSIVE OR IRRITABLE MOOD FOR AT LEAST 1 WEEK (OR LESS IF HOSPITALIZATION IS NEEDED) - INFLATED SELF – ESTEEM / GRANDIOSITY - DECREASED NEED FOR SLEEP - MORE TALKATIVE THAN USUAL / PRESSURED SPEECH - PRESSURE OF THOUGHT / FLIGHT OF IDEAS - DISTRACTIBILITY - INCREASED GOAL – DIRECTED ACTIVITY / PSYCHOMOTOR AGITATION - EXCESSIVE INVOLVEMENT IN PLEASURABLE ACTIVITIES WITH HIGH POTENTIAL FOR PAINFUL CONSEQUENCES HYPOMANIC EPISODES - DISTINCT PERIODS OF ABNORMALLY & PERSISTENTLY ELEVATED, EXPANSIVE OR IRRITABLE MOOD FOR AT LEAST 4 DAYS, CLEARLY DIFFERENT FROM THE NORMAL NON – DEPRESSED MOOD - SAME SYMPTOMS AS MANIC EPISODES BUT TO A LESSER DEGREE - CHANGE IN MOOD & FUNCTIONING IS UNCHARACTERISTIC OF THE PERSON & THOUGH SLIGHT, IS OBSERVABLE BY OTHERS - NO PSYCHOTIC SYMPTOMS, NO HOSPITALIZATION NEEDED MIXED EPISODES - THE CRITERIA FOR BOTH A MAJOR DEPRESSIVE & A MANIC EPISODE ARE MET OVER A 1 WEEK PERIOD (PRESENT AT THE SAME TIME)
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DSM-IV-TR CRITERIA, EPISODES
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DSM-IV-TR CRITERIA, EPISODES
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SUBTYPES BIPOLAR I DISORDER BIPOLAR II DISORDER
- MANIC EPISODES WITH / WITHOUT MAJOR DEPRESSIVE EPISODES - MIXED EPISODES - HYPOMANIC EPISODES IF THERE HAS BEEN A PREVIOUS MANIC / MIXED EPISODE BIPOLAR II DISORDER - HYPOMANIC & MAJOR DEPRESSIVE EPISODES BIPOLAR DISORDER NOT OTHERWISE SPECIFIED - CLINICAL PICTURE IS OF A BIPOLAR DISORDER BUT SPECIFIC DSM-IV-TR CRITERIA FOR A BIPOLAR SUBTYPE IS NOT MET, EG: - VERY SHORT MANIC / MAJOR DEPRESSIVE EPISODES THAT DON’T MEET THE MINIMUM DURATION CRITERIA - RECURRENT HYPOMANIC BUT NO MAJOR DEPRESSIVE EPISODES - UNCERTAINTY AS TO WHETHER THE BIPOLAR DISORDER IS PRIMARY OR DUE TO A SUBSTANCE / GENERAL MEDICAL CONDITION
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DSM-IV-TR DIAGNOSIS & SPECIFIERS
DSM-IV-TR DIAGNOSIS OF BIPOLAR I DISORDER REQUIRES SPECIFYING THE CURRENT / MOST RECENT EPISODE, EACH OF WHICH HAS IT’S OWN DIAGNOSTIC CRITERIA: - SINGLE MANIC EPISODE - MOST RECENT EPISODE MANIC - MOST RECENT EPISODE HYPOMANIC - MOST RECENT EPISODE DEPRESSED - MOST RECENT EPISODE MIXED - MOST RECENT EPISODE UNSPECIFIED DSM-IV-TR DIAGNOSIS OF BOTH BIPOLAR I & II DISORDERS REQUIRES, ACCORDING TO THE SPECIFIC EPISODE, SPECIFYING THE FOLLOWING, EACH OF WHICH HAS IT’S OWN DIAGNOSTIC CRITERIA:
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DSM-IV-TR DIAGNOSIS & SPECIFIERS
SEVERITY OF THE EPISODE - MILD - MODERATE - SEVERE WITHOUT PSYCHOTIC FEATURES - SEVERE WITH PSYCHOTIC FEATURES ADDITIONAL FEATURES OF THE EPISODE - WITH CATATONIC FEATURES - WITH MELANCHOLIC FEATURES - WITH ATYPICAL FEATURES ONSET OF THE EPISODE - WITH POST PARTUM ONSET COURSE OF THE DISORDER / EPISODE - IN PARTIAL REMISSION - IN FULL REMISSION - CHRONIC - LONGITUDINAL COURSE WITH INTEREPISODE RECOVERY - LONGITUDINAL COURSE WITHOUT INTEREPISODE RECOVERY - WITH SEASONAL PATTERN - WITH RAPID CYCLING
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BIPOLAR DEPRESSION VAST MAJORITY OF TOTAL & 1ST EPISODES ARE DEPRESSIVE CLUES THAT A DEPRESSIVE EPISODE / 1ST EPISODE MIGHT BE BIPOLAR & NOT UNIPOLAR - EARLY AGE OF SYMPTOM ONSET - PSYCHOTIC DEPRESSION BEFORE AGE 25 - POSTPARTUM DEPRESSION, ESPECIALLY WITH PSYCHOTIC FEATURES - SHORT EPISODES WITH RAPID ONSET & OFFSET - RECURRENT, MULTIPLE EPISODES - SEASONAL PATTERN - EPISODES WITH MARKED PSYCHOMOTOR ABNORMALITIES (RETARDATION / AGITATION) - ATYPICAL FEATURES - FAMILY HISTORY OF BIPOLAR - HYPERTHYMIC TEMPERAMENT - HYPOMANIA ASSOCIATED WITH ANTIDEPRESSANT TREATMENT - RAPID IMPROVEMENT ON ANTIDEPRESSANT TREATMENT - ANTIDEPRESSANT “POOP OUT” (REPEATED LOSS OF EFFICACY OF ANTIDEPRESSANT AFTER INITIAL RESPONSE) - SEVERE ANXIETY
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EPIDEMIOLOGY LIFETIME PREVALENCE GENDER DIFFERENCES AGE OF ONSET
- BIPOLAR I – 2,4% - BIPOLAR II – 4,8% GENDER DIFFERENCES - BIPOLAR I – EQUAL INCIDENCE, MEN MORE MANIC EPISODES, WOMEN MORE DEPRESSIVE & MIXED EPISODES - BIPOLAR II - MORE COMMON IN WOMEN - RAPID CYCLING MORE COMMON IN WOMEN AGE OF ONSET - EARLIER THAN MAJOR DEPRESSIVE DISORDER - MEAN AGE OF ONSET 30 YEARS (RANGE 5 – 50) MORE COMMON IN SINGLE / DIVORCED PERSONS
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AETIOLOGY MULTIFACTORIAL BIOLOGICAL FACTORS GENETIC FACTORS
- DISTURBANCES IN REGULATION OF SEROTONIN, NORADRENALIN, DOPAMINE - SECONDARY DISTURBANCES IN REGULATION OF OTHER NEUROTRANSMITTERS - SECOND MESSENGER & INTRACELLULAR CASCADE DISTURBANCES - ALTERATIONS OF HORMONAL REGULATION - ALTERATIONS OF SLEEP NEUROPHYSIOLOGY - IMMUNOLOGICAL DISTURBANCE - STRUCTURAL & FUNCTIONAL BRAIN ABNORMALITIES GENETIC FACTORS - MOOD DISORDERS ARE HEREDITARY PSYCHOSOCIAL FACTORS - LIFE EVENTS & ENVIRONMENTAL STRESS - PERSONALITY FACTORS
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