Psychiatry - Pathology (1) Flashcards

(34 cards)

1
Q

Infant deprivation effects

  • Long-term deprivation of affection results in:
  • Deprivation for > 6 months
  • Severe deprivation
A
  • Long-term deprivation of affection results in:
    • Decreased muscle tone
    • Poor language skills
    • Poor socialization skills
    • Lack of basic trust
    • Anaclitic depression (infant withdrawn / unresponsive)
    • ƒƒWeight loss
    • Physical illness
  • The 4 W’s:
    • Weak
    • Wordless
    • Wanting (socially)
    • Wary
  • Deprivation for > 6 months
    • Can lead to irreversible changes.
  • Severe deprivation
    • Can result in infant death.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Child abuse

  • For each
    • Evidence
    • Abuser
    • Epidemiology
  • Physical abuse
  • Sexual abuse
A
  • Physical abuse
    • Evidence: Healed fractures on x-ray (e.g., spiral fractures are highly suggestive of abuse), burns (e.g., cigarette, scalding), subdural hematomas, pattern marks/bruising (e.g., belts, electrical cords), rib fractures, retinal hemorrhage or detachment
    • Abuser: Usually biological mother
    • Epidemiology: ~3000 deaths/yr in U.S., 80% < 3 yr old
  • Sexual abuse
    • Evidence: Genital, anal, or oral trauma; STDs; UTIs
    • Abuser: Known to victim, usually male
    • Epidemiology: Peak incidence 9–12 years old
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Child neglect

  • Definition
  • Evidence
A
  • Definition
    • Failure to provide a child with adequate food, shelter, supervision, education, and/or affection.
    • Most common form of child maltreatment.
    • As with child abuse, child neglect must be reported to local child protective services.
  • Evidence
    • Poor hygiene, malnutrition, withdrawal, impaired social/emotional development, failure to thrive.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Attention-deficit hyperactivity disorder

  • Definition
  • Findings
  • Treatment
A
  • Definition
    • Childhood and early-onset disorder
    • Onset before age 12.
    • Limited attention span and poor impulse control.
    • Normal intelligence, but commonly coexists with difficulties in school.
    • Continues into adulthood in as many as 50% of individuals.
  • Findings
    • Characterized by hyperactivity, impulsivity, and/or inattention in multiple settings (school, home, places of worship, etc.)
    • Associated with decreased frontal lobe volume/metabolism.
  • Treatment
    • Methylphenidate, amphetamines, atomoxetine, behavioral interventions (reinforcement, reward).
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Conduct disorder

A
  • Childhood and early-onset disorder
  • Repetitive and pervasive behavior violating the basic rights of others (e.g., physical aggression, destruction of property, theft).
  • After age 18, many of these patients will meet criteria for diagnosis of antisocial personality disorder.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Oppositional defiant disorder

A
  • Childhood and early-onset disorder
  • Enduring pattern of hostile, defiant behavior toward authority figures in the absence of serious violations of social norms.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Tourette syndrome

  • Definition
  • Findings
  • Treatment
A
  • Definition
    • Childhood and early-onset disorder
    • Onset before age 18.
    • Lifetime prevalence of 0.1–1.0% in the general population
    • Associated with OCD and ADHD
  • Findings
    • Characterized by sudden, rapid, recurrent, nonrhythmic, stereotyped motor and vocal tics that persist for > 1 year.
    • Coprolalia (involuntary obscene speech) found in only 10–20% of patients.
  • Treatment
    • Antipsychotics and behavioral therapy.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Separation anxiety disorder

  • Definition
  • Treatment
A
  • Definition
    • Childhood and early-onset disorder
    • Common onset at 7–9 years.
    • Overwhelming fear of separation from home or loss of attachment figure.
    • May lead to factitious physical complaints to avoid going to or staying at school.
  • Treatment
    • SSRIs and relaxation techniques/behavioral interventions.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Pervasive developmental disorders

  • Definition
  • Examples
A
  • Definition
    • Characterized by difficulties with language and failure to acquire or early loss of social skills.
  • Examples
    • Autism spectrum disorder
    • Rett disorder
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Autism spectrum disorder

  • Definition
  • Findings
A
  • Definition
    • Pervasive developmental disorder
    • Must present in early childhood
    • More common in boys
  • Findings
    • Characterized by poor social interactions, communication deficits, repetitive/ritualized behaviors, and restricted interests.
    • May or may not be accompanied by intellectual disability
    • Rarely accompanied by unusual abilities (savants).
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Rett disorder

  • Definition
  • Findings
A
  • Definition
    • Pervasive developmental disorder
    • X-linked disorder seen almost exclusively in girls (affected males die in utero or shortly after birth).
  • Findings
    • Symptoms usually become apparent around ages 1–4, including regression characterized by loss of development, loss of verbal abilities, intellectual disability, ataxia, and stereotyped hand-wringing.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Neurotransmitter changes with these diseases

  • Alzheimer disease 
  • Anxiety
  • Depression
  • Huntington disease
  • Parkinson disease
  • Schizophrenia
A
  • Alzheimer disease 
    • Decreased ACh
  • Anxiety 
    • Increased norepinephrine
    • Decreased GABA
    • Decreased 5-HT
  • Depression 
    • Decreased norepinephrine
    • Decreased 5-HT
    • Decreased dopamine
  • Huntington disease 
    • Decreased GABA
    • Decreased ACh
    • Increased dopamine
  • Parkinson disease 
    • Decreased dopamine
    • Increased 5-HT
    • Increased ACh
  • Schizophrenia 
    • Increased dopamine
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Orientation

  • Definition
  • Common causes of loss of orientation
  • Order of loss
A
  • Definition
    • Patient’s ability to know who he or she is, where he or she is, and the date and time.
    • Often abbreviated in the medical chart as “alert and oriented × 3” (AO×3)
  • Common causes of loss of orientation
    • Alcohol, drugs, fluid/electrolyte imbalance, head trauma, hypoglycemia, infection, nutritional deficiencies.
  • Order of loss
    • 1st—time
    • 2nd—place
    • Last— person
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Amnesias

  • Retrograde amnesia
  • Anterograde amnesia
  • Korsakoff amnesia
  • Dissociative amnesia
A
  • Retrograde amnesia
    • Inability to remember things that occurred before a CNS insult.
  • Anterograde amnesia
    • Inability to remember things that occurred after a CNS insult (no new memory).
  • Korsakoff amnesia
    • Classic anterograde amnesia caused by thiamine deficiency and the associated destruction of mammillary bodies.
    • May also include some retrograde amnesia.
    • Seen in alcoholics, and associated with confabulations.
  • Dissociative amnesia
    • Inability to recall important personal information, usually subsequent to severe trauma or stress.
    • May be accompanied by dissociative fugue (abrupt travel or wandering during a period of dissociative amnesia, associated with traumatic circumstances).
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Cognitive disorder

A
  • Significant change in cognition (memory, attention, language, judgment) from previous level of functioning.
  • Associated with abnormalities in CNS, a general medical condition, medications, or substance use.
  • Includes delirium and dementia.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Delirium

  • Definition
  • Findings
  • Treatment
A
  • Definition
    • “Waxing and waning” level of consciousness with acute onset
      • Delirium** = changes in sensorium.**
    • Usually 2° to other illness (e.g., CNS disease, infection, trauma, substance abuse/withdrawal, metabolic/electrolyte disturbances, hemorrhage, urinary/fecal retention)
    • Most common presentation of altered mental status in inpatient setting
    • Check for drugs with anticholinergic effects.
    • Often reversible.
  • Findings
    • Rapid decrease in attention span and level of arousal
    • Characterized by disorganized thinking, hallucinations (often visual), illusions, misperceptions, disturbance in sleepwake cycle, cognitive dysfunction.
    • Abnormal EEG.
  • Treatment
    • Identify and address underlying cause.
    • ƒƒOptimize brain condition (O2, hydration, pain, etc.).
    • Antipsychotics (mainly haloperidol).
    • T-A-DA approach (Tolerate, Anticipate, Don’t Agitate) helpful for management.
17
Q

Dementia

  • Definition
  • Findings
  • Irreversible causes
  • Reversible causes
A
  • Definition
    • Gradual decrease in intellectual ability or “cognition” without affecting level of consciousness.
    • A patient with dementia can develop delirium (e.g., patient with Alzheimer disease who develops pneumonia is at increased risk for delirium)
    • Increased incidence with age.
    • Usually irreversible.
    • In elderly patients, depression may present like dementia (pseudodementia).
  • Findings
    • Characterized by memory deficits, aphasia, apraxia, agnosia, loss of abstract thought, behavioral/personality changes, impaired judgment.
      • “Dememtia” is characterized by memory loss.
    • EEG usually normal.
  • Irreversible causes
    • Alzheimer disease, Lewy body dementia, Huntington disease, Pick disease, cerebral infarcts, Creutzfeldt-Jakob disease, chronic substance abuse (due to neurotoxicity of drugs).
  • Reversible causes
    • NPH, vitamin B12 deficiency, hypothyroidism, neurosyphilis, HIV (partially).
18
Q

Psychosis

  • Definition
  • Hallucinations
  • Delusions
  • Disorganized speech
A
  • Definition
    • A distorted perception of reality (psychosis) characterized by delusions, hallucinations, and/or disorganized thinking.
    • Psychosis can occur in patients with medical illness, psychiatric illness, or both.
  • Hallucinations
    • Perceptions in the absence of external stimuli
    • e.g., seeing a light that is not actually present
  • Delusions
    • Unique, false beliefs about oneself or others that persist despite the facts
    • e.g., thinking aliens are communicating with you
  • Disorganized speech
    • Words and ideas are strung together based on sounds, puns, or “loose associations.”
19
Q

Hallucination types

  • Visual
  • Auditory
  • Olfactory
  • Gustatory
  • Tactile
  • Hypnagogic
  • Hypnopompic
A
  • Visual
    • More commonly a feature of medical illness (e.g., drug intoxication) than psychiatric illness.
  • Auditory
    • More commonly a feature of psychiatric illness (e.g., schizophrenia) than medical illness.
  • Olfactory
    • Often occur as an aura of psychomotor epilepsy and in brain tumors.
  • Gustatory
    • Rare.
  • Tactile
    • Common in alcohol withdrawal (e.g., formication—the sensation of bugs crawling on one’s skin).
    • Also seen in cocaine abusers (“cocaine crawlies”).
  • HypnaGOgic
    • Occurs while GOing to sleep.
  • HypnoPOMPic
    • Occurs while waking from sleep
    • POMPous upon awakening”
20
Q

Schizophrenia

  • Definition
  • Etiologies / associations
  • Prevalence
  • Diagnosis
  • Brief psychotic disorder
  • Schizophreniform disorder
  • Schizoaffective disorder
A
  • Definition
    • Chronic mental disorder with periods of psychosis, disturbed behavior and thought, and decline in functioning that lasts > 6 months.
    • Associated with increased dopaminergic activity, decreased dendritic branching.
    • Patients are at increased risk for suicide
  • Etiologies / associations
    • Genetics and environment contribute to the etiology of schizophrenia.
    • Frequent cannabis use is associated with psychosis/schizophrenia in teens.
  • Prevalence
    • Lifetime prevalence—1.5% (males = females, blacks = whites).
    • Presents earlier in men (late teens to early 20s vs. late 20s to early 30s in women).
  • Diagnosis requires 2 or more of the following (first 4 in this list are “positive symptoms”):
    • ƒƒDelusions
    • ƒƒHallucinations—often auditory
    • ƒƒDisorganized speech (loose associations)
    • ƒƒDisorganized or catatonic behavior
    • “Negative symptoms”—flat affect, social withdrawal, lack of motivation, lack of speech or thought
  • Brief psychotic disorder
    • < 1 month, usually stress related.
  • Schizophreniform disorder
    • 1–6 months.
  • Schizoaffective disorder
    • At least 2 weeks of stable mood with psychotic symptoms, plus a major depressive, manic, or mixed (both) episode.
    • 2 subtypes: bipolar or depressive.
21
Q

Delusional disorder

A
  • Fixed, persistent, untrue belief system lasting > 1 month.
  • Functioning otherwise not impaired.
  • Example: a woman who genuinely believes she is married to a celebrity when, in fact, she is not.
22
Q

Dissociative disorders

  • Dissociative identity disorder
  • Depersonalization / derealization disorder
A
  • Dissociative identity disorder
    • Formerly known as multiple personality disorder.
    • Presence of 2 or more distinct identities or personality states.
    • More common in women.
    • Associated with history of sexual abuse, PTSD, depression, substance abuse, borderline personality, and somatoform conditions.
  • Depersonalization / derealization disorder
    • Persistent feelings of detachment or estrangement from one’s own body, thoughts, perceptions, and actions (depersonalization) or one’s environment (derealization).
23
Q

Mood disorder

A
  • Characterized by an abnormal range of moods or internal emotional states and loss of control over them.
  • Severity of moods causes distress and impairment in social and occupational functioning.
  • Includes major depressive disorder, bipolar disorder, dysthymic disorder, and cyclothymic disorder.
  • Psychotic features (delusions or hallucinations) may be present.
24
Q

Manic episode

  • Definition
  • Diagnosis
A
  • Definition
    • Distinct period of abnormally and persistently elevated, expansive, or irritable mood and abnormally and persistently increased activity or energy lasting at least 1 week.
    • Often disturbing to patient.
  • Diagnosis requires hospitalization or at least 3 of the following (manics DIG FAST):
    • ƒƒDistractibility
    • Irresponsibility—seeks pleasure without regard to consequences (hedonistic)
    • ƒƒGrandiosity—inflated self-esteem
    • Flight of ideas—racing thoughts
    • Increase in goal-directed Activity/psychomotor Agitation
    • Decreased need for Sleep
    • Talkativeness or pressured speech
25
Hypomanic episode
* Like manic episode except mood disturbance is not severe enough to cause marked impairment in social and/or occupational functioning or to necessitate hospitalization. * No psychotic features. * Lasts at least 4 consecutive days.
26
Bipolar disorder * Definition * Bipolar I vs. II * Treatment * Cyclothymic disorder
* Definition * Patient’s mood and functioning usually return to normal between episodes. * Use of antidepressants can lead to increased mania. * High suicide risk. * Bipolar I vs. II * Bipolar I defined by the presence of at least 1 manic episode with or without a hypomanic or depressive episode. * Bipolar II defined by the presence of a hypomanic and a depressive episode. * Treatment * Mood stabilizers (e.g., lithium, valproic acid, carbamazepine), atypical antipsychotics. * **Cyclothymic disorder** * Dysthymia and hypomania * Mlder form of bipolar disorder **lasting at least 2 years**.
27
Major depressive disorder * Definition * Symptoms * Patients with depression typically have the following changes in their sleep stages: * Persistent depressive disorder (dysthymia) * Seasonal affective disorder
* Definition * May be self-limited disorder, with major depressive episodes usually **lasting 6–12 months**. * Episodes characterized by **at least 5** of the following 9 symptoms for **2 or more weeks** * Symptoms must include patient-reported depressed mood or anhedonia and occur more frequently as the disorder progresses * Symptoms (**_SIG_ _E_ _CAPS_**) * **_S_**leep disturbance * **_L_**oss of Interest (anhedonia) * **_ƒƒG_**uilt or feelings of worthlessness * **_E_**nergy loss and fatigue * ƒƒ**_C_**oncentration problems * **_A_**ppetite/weight changes * **_P_**sychomotor retardation or agitation * **_S_**uicidal ideations * ƒƒDepressed mood * Patients with depression typically have the following changes in their sleep stages: * Decreased slow-wave sleep * Decreased REM latency * Increased REM early in sleep cycle * Increased total REM sleep * Repeated nighttime awakenings * Early-morning awakening (important screening question) * **Persistent depressive disorder (dysthymia)** * Depression, often milder, **lasting at least 2 years**. * **Seasonal affective disorder** * Symptoms usually associated with winter season * Improves in response to full-spectrum brightlight exposure.
28
Atypical depression * Definition * Findings * Treatment
* Definition * Differs from classical forms of depression. * Most common subtype of depression * Findings * Mood reactivity (being able to experience improved mood in response to positive events, albeit briefly) * “Reversed” vegetative symptoms (hypersomnia and weight gain) * Leaden paralysis (heavy feeling in arms and legs) * Long-standing interpersonal rejection sensitivity. * Treatment * MAO inhibitors, SSRIs.
29
Postpartum mood disturbances * Definition * Maternal (postpartum) “blues” * Postpartum depression * Postpartum psychosis
* Definition * Onset within 4 weeks of delivery. * **Maternal (postpartum) “blues”** * 50–85% incidence rate. * Characterized by depressed affect, tearfulness, and fatigue starting 2–3 days after delivery. * **Usually resolves within 10 days**. * Treatment: supportive. * Follow-up to assess for possible postpartum depression. * **Postpartum depression** * 10–15% incidence rate. * Characterized by depressed affect, anxiety, and poor concentration starting within 4 weeks after delivery. * **Lasts 2 weeks to a year or more**. * Treatment: antidepressants, psychotherapy. * **Postpartum psychosis** * 0.1–0.2% incidence rate. * Characterized by delusions, hallucinations, confusion, unusual behavior, and possible homicidal/suicidal ideations or attempts. * Usually **lasts days to 4–6 weeks**. * Treatment: antipsychotics, antidepressants, possible inpatient hospitalization, assessment of child safety.
30
Pathologic grief * Definition * Findings
* Definition * Normal bereavement characterized by shock, denial, guilt, and somatic symptoms. * Duration varies widely, up to 6–12 months. * Findings * May experience simple hallucinations (e.g., hearing name called). * Pathologic grief includes excessively intense grief; prolonged grief lasting \> 6–12 months; or grief that is delayed, inhibited, or denied. * May experience depressive symptoms, delusions, and hallucinations.
31
Electroconvulsive therapy * For... * Definition * Adverse effects
* For... * Treatment option for major depressive disorder refractory to other treatment and for pregnant women with major depressive disorder. * Also considered when immediate response is necessary (acute suicidality), in depression with psychotic features, and for catatonia. * Definition * Produces a relatively painless seizure in an anesthetized patient. * Adverse effects * Disorientation, temporary headache, and partial anterograde/retrograde amnesia usually fully resolving in 6 months.
32
Risk factors for suicide completion * Risk factors * Gender
* **_SAD_ _PERSONS_ are more likely to complete suicide.** * _​**S**_ex (male) * **_A_**ge (teenager or elderly) * **_D_**epression * **_P_**revious attempt * **_E_**thanol or drug use * Loss of **_R_**ational thinking * **_S_**ickness (medical illness, 3 or more prescription medications) * **_O_**rganized plan * **_N_**o spouse (divorced, widowed, or single, especially if childless) * **_S_**ocial support lacking. * Gender * Women try more often * Men succeed more often.
33
Anxiety disorder
* Inappropriate experience of fear/worry and its physical manifestations (anxiety) when the source of the fear/worry is either not real or insufficient to account for the severity of the symptoms. * Symptoms interfere with daily functioning. * Lifetime prevalence of 30% in women and 19% in men. * Includes panic disorder, phobias, and generalized anxiety disorder.
34
Panic disorder * Definition * Treatment * Diagnosis
* Definition * Defined by the presence of recurrent panic attacks * Periods of intense fear and discomfort peaking in 10 minutes with at least 4 of the following) (**_PANICS_**): * **_P_**alpitations, **_P_**aresthesias * **_A_**bdominal distress * **_N_**ausea * **_I_**ntense fear of dying or losing control, l**_I_**ght-headedness * **_C_**hest pain, **_C_**hills, **_C_**hoking, dis**_C_**onnectedness * **_S_**weating, **_S_**haking, **_S_**hortness of breath. * Symptoms are the systemic manifestations of fear * Strong genetic component. * Treatment * Cognitive behavioral therapy, SSRIs, venlafaxine, benzodiazepines (risk of tolerance, physical dependence). * Diagnosis requires attack followed by 1 month (or more) of 1 (or more) of the following: * Persistent concern of additional attacks * Worrying about consequences of the attack * Behavioral change related to attacks.