Bipolar Flashcards
big chars of mania (need how many of 7?)
descriptors
what is the predominant mood?
what is the cardinal symptom?
need 3+ Distractability Increased activity Grandiosity Flight of ideas Aggitation/irritability Sleep Talking fast
elevated/euphoric, expansive (enthusiasm, conversing w/strangers), irritable, labile affect
irritability
decreased need for sleep
what tx to avoid in bipolar disorder?
MDD tx –> may exacerbate
features of mood disorders
MDD: MDE, rarely mixed features
BP I: MDE (not req), mania, sometimes hypo/mixed
BP II: MDE (required), hypomania, sometimes mixed
epi of bipolar
M:F?
median onset?
4% 3:2, but BP I equal in M/F 25y, men earlier than women completed suicide in 10-15% of BP I 6th leading cause of disability due to non-infectious disease
what to think if onset is >50y?
due to medical condition or meds
2 co-morbid d/o’s with bipolar?
what two signs are a red flag in pts presenting with a depressive episode?
substance use/anxiety
alcohol misuse/panic attacks
genetics of bipolar
1st degree relatives: 7x more likely
MZT: 33-90%
DZT: 5-25%
neuroimaging of bipolar
enlarged ventricles
frontal lobe white matter lesions
decr gray matter in limbic sys
metabolism: ant cingulate v. PFC
NAA levels? lithium’s effect?
up in AC and down in PFC
low levels of N-acetylaspartate in PFC/AC/Hippo
lithium raises NAA by blocking ITP pathway –> release brake on new synapse formation
cortisol levels in bipolar?
cytokines?
incr cortisol
incr pro-inflam cytokines
what env changes assoc w mania onset?
sleep disturbance/deprivation
travel changes in time zone
early fall/spring daylight changes
psychosocial factors in bipolar (families)
families w/high expressed emotion have higher relapse rates
negative life events –> longer recovery and more likely to have new episodes
medical conditions that cause/contribute to mania –> “BP d/o due to another condition”
endocrine (hyperthyroid neuro (MS/huntington/epilepsy) neoplasia (frontal lobe) cerebrovasc disease (right frontal lobe) infection (HIV/AIDS) neurosyphilis herpes encephalitis
substances that cause/contribute to mania –> substance/med-induced bipolar d/o
stimulants: cocaine, amphets
antidepressants
glucocorticoids
antibiotics
how long must episode last to be considered manic? how many required to be considered BP I?
at least 1 week for most of day
one lifetime episode