Depressive Disorders Flashcards
What is the definition of Depressive Disorders?
Low moods without abnormally high moods
What is Major Depressive Disorder (MDD)
What can they not have?
What is MDD knows as?
Person must experience one or more major depressive episodes
They can not have a history of mania or hypomania
MDD is known as a unipolar disorder
What do these mean? Euthymic Dysthymic MDE Hypomanic Manic
Euthymic: normal
Hypomanic/Dysthymic: Can still do normal functions
Manic/MDE: Cannot do normal functional tasks
What is a major depressive episode (MDE)
A major depressive episode is 5 or more symptoms from three different categories for at least 2 weeks
What are the three categories?
What are the conditions for MDE
What is the Pneumonic?
1/5 of the traits must be either: Affective Symptoms 1. Depressed mood 2. Anhedonia (lack of pleasure/interest in anything that used to make you happy) Neuro-vegetative Symptoms:
SIG E CAPS (Energy Capsules)
- Sleep Change: Insomnia-they want to sleep, but are unable to
- Interest loss
- Guilt/worthlessness
- Energy Problem: Loss of Energy
- Decreased concentration
- Appetite change: significant weight change due to loss of weight -LOSE weight
Cognitive: - Psychomotor changes-retardation-similar to watching lectures at 0.5 speed
- Suicidal Ideation: thoughts of death about others
Is there genetic vulnerability?
Yes
Neurobiology behind MDD
Five structures: increase or decrease?
It is multifactorial
- Increase in Amygdala activity
- Increase in HPA Axis activity: high cortisol and high levels of cytokines-inflammatory response
- Decrease in hippocampus volume
- Decrease in volume/activity of dorsolateral prefrontal cortex-inability to inhibit overactivity of limbic regions
- decrease neurotransmission of monoamines
Treatment of MDD
How long do they take to work
- Psychotherapy-CBT
2. Antidepressants (AD’s) to INCREASE monoamines (Serotonin and Norepi)-4-6 weeks to work
What are the different types of AD’s and what are the side effects
- SSRI’s-mild side effects-Prozac (Fluoxetine)
- SNRI’S-Venlafaxine (Effexor)
- TCA’s-less serotonin, more norepinephrine, many cardiac side effects-postural HTN, tachycardia
- MAOi’s-not selective to serotonin-diet restrictions to avoid Tyramine: induce HTN,: avoid beer, wine, aged cheese
Common theme for Bipolar Disorders?
High mood
BP1 Criteria? There are 4.
- Must experience 1 manic episode
- symptoms last at least 1 or more weeks
- Marked impairment in functioning
- Can also express MDE’s (more common)
What is a Manic Episode
What is the pneumonic and what are the symptoms
Abnormally elevated mood AND increased energy
“feel on top of the world”
Need 3 other symptoms:
DIG FAST
- Distractibility
- Irresponsibility: excessive involvement in “risky/pleasurable” activities
- Grandiosity/inflated self esteem
- Flight of ideas and/or racing thoughts
- Increased goal-directed behavior or psychomotor agitation
- Decreased need for sleep
- Talkativeness/pressured speech
Is BPI more or less controlled by genetics?
Manic episodes involve increase or decrease in MAO activity?
MORE-80%
INCREASE
Treatment for BPI?
What are they and how do they work?
Mood Stabilizers: Drugs used to treat bipolar disorders especially manic phase
- Treatment of Manic Episodes include: Lithium, Anticonvulsants, and Antipsychotics
- Treatment of bipolar MDE’s are:
- Antidepressants not FDA approved due to risk of inducing mania
- Antipsychotics
BPII
A person who experiences at least 1 MDE and at least 1 HYPOmanic episode