Bipolar Disorders Flashcards
Estimated Lifetime Prevalence of BPD
-1-2%
- 1% for BPI
- 1.1% for BPII
- 2.4% sub threshold BPD (2 core features of hypomania but don’t meet BPD criteria
Risk Factors of BPD
- FH (if a 1st deg. relative has BPD there is a 7-10x higher risk)
- Pregnancy complications/seasons of birth
- stressful life events
- Traumatic Brain Injury
- Multiple Sclerosis
Mood Episodes
-Changes in mood with associated symptoms.
There are manic, hypomanic, missed, and depresses mood episodes
Key Feature for BPD diagnosis
-Key feature for a diagnosis of BPD is at least 1 episode meeting criteria for manic, hypomanic or mixed.
Criteria for diagnosing BPD
1) (distinct period of Abnormally elevated or irritable mood AND persistently increased goal directed activity) OR Energy for 1 week most of the day, everyday
2) 3 or more associated s/s if they are in an elevated mood state, 4 or more associated symptoms if they are in a irritable mood state
Associated Symptoms for diagnosing Manic Episode of BPD (DIGFAST)
D=distracted, I= Impulsive, G=Grandiose, F=Flight of ideas, A=Activities, S=Sleep (decreased), T=Talkative
Diagnostic criteria for a Hypo Manic Episode
1) distinct period of elevated or irritable mood AND increased energy for about 4 DAYS
- not severe enough to cause marked impairment or hospitalization
- changes must be observed by others
BPDI
-At least one prior episode of mania
BPDII
- no manic
- hypomanic
- at least one episode of MDD
Cyclothymic d/o
- no mania
- no mixed
- SOME hypomania s/s
- SOME depression s/s
*not enough s/s to meet the diagnostic criteria
“With Mixed Features” episode specifier
- mania with s/s of depression
- depression with s/s of mania
Rapid Cycling
at least 4 episodes per year.
*associated with worse prognosis
What phase do most spend their time in?
depressive episodes
Neurobiology of Bipolar d/o
- White matter connectivity abnormalities
- Increased Volume in the striatum and amygdala
- ↓prefrontal activation @ ventral and medial lateral prefrontal regions
- ↑ amygdala activation
Genetic Findings of BPD
- Highly Heritable
- Twin studies show up to 80% of the risk for BPD is inherited