Thought Disorder and Dissociative States

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Thought Disorder and

Dissociative States

Mark Y. Wahba

Resident Rounds

March 11/04

Some slides courtesy of

Dr. Moritz Haager,

International man of mystery

Thought, Mood, and

Personality Disorders in the ED

Outline

Psychosis

Thought Disorders

 Schizophrenia

 Schizoaffective Disorder

 Delusional Disorder

 Brief Psychotic Episode

 Culture-Bound Syndromes

Dissociative Disorders

Medical Clearance

Restraints

Medications

Psychosis

 “Psychosis is a disorder of thinking and perception in which information processing and reality testing are impaired, resulting in an inability to distinguish fantasy from reality”

 www.emedicine.com/emerg/topic520.htm

Many reasons for psychosis

Medical conditions associated with Psychosis

Substance abuse and drug toxicity

Central nervous system lesions — tumor (especially limbic and pituitary), aneurysm, abscess

Head trauma

Infections —encephalitis, abscess, neurosyphilis

Endocrine disease —thyroid,

Cushing’s, Addison’s, pituitary, parathyroid

Systemic lupus erythematosus and multiple sclerosis

Cerebrovascular disease

 Huntington’s disease

 Parkinson’s disease

Migraine headache and temporal arteritis

Pellagra and pernicious anemia

Porphyria

Withdrawal states, including alcohol and benzodiazepines

Delirium and dementia

Sensory deprivation or over stimulation states can induce psychosis, such as psychosis induced in the intensive care unit

Schizophrenia

 “Schizophrenia is a complex illness or group of disorders characterized by hallucinations, delusions, behavioral disturbances, disrupted social functioning, and associated symptoms in what is usually an otherwise clear sensorium”

 Jacobson: Psychiatric Secrets, 2nd ed., Copyright © 2001 Hanley and Belfus

 “Results in fluctuating, gradually deteriorating, or relatively stable disturbances in thinking, behavior, and perception”

 www.emedicine.com/emerg/topic520.htm

What are the symptoms of schizophrenia?

Schizophrenia involves at least a 6-month period of continuous signs of the illness

Delusions: false beliefs that (1) persist despite what most people would accept as evidence to the contrary and (2) are not shared by others in the same culture or subculture.

Hallucinations : perceptions that appear to be real when no such stimulus is actually present.

Grossly disorganized or catatonic behavior . Catatonia, a syndrome characterized by stupor with rigidity or flexibility of the musculature, may alternate with periods of overactivity

Negative symptoms: (1) affective flattening or decreased emotional reactivity; (2) alogia or poverty of speech; (3) avolition or lack of goal directed activity

Schizophrenia: Facts

Etiology: Unknown

Incidence is 1%

 Same across racial, cultural, and international lines

Approximately 40% of people with schizophrenia attempt suicide

10 –20% succeed

Schizophrenia: Facts

Lost productivity in the United States costs an estimated $20 billion per year

2.5% of each healthcare dollar spent

1990, direct and indirect costs were estimated to be $33 billion

Schizophrenic patients occupy as many as 25% of all hospital beds at any given time

 Schizophrenia Gerstein PS http://www.emedicine.com/emerg/topic520.htm accessed Jan

27/04

How is schizophrenia differentiated from other psychiatric conditions?

Affective disorders: the duration of psychotic symptoms is relatively brief in relation to the affective symptoms

Schizophreniform disorder , by definition, involves the symptoms of schizophrenia with a duration of less than 6 months

Obsessive-compulsive disorder may have beliefs that border on delusions but generally recognize that their symptoms are at least somewhat irrational

Brief reactive psychoses may be seen in patients with borderline or other personality disorders as well as dissociative disorders

Posttraumatic stress disorder may involve visual, auditory, tactile, and olfactory hallucinations during flashbacks

Schizoaffective Disorder

Definition

 “ an illness that combines symptoms of schizophrenia with a major affective disorder, i.e., major depression or manicdepressive illness”

 Jacobson: Psychiatric Secrets, 2nd ed., Copyright © 2001

Hanley and Belfus

 “Pt must meet the diagnostic criteria for a major depressive episode or a manic episode concurrently with meeting the diagnostic criteria for the active phase of schizophrenia”

 Kaplans and Sadock’s Synopsis of Psychiatry 8th edition

Williams and Wilkins Baltimore

How is schizoaffective disorder different from schizophrenia or bipolar affective disorder?

Psychotic symptoms are common during acute phases of bipolar affective disorder

In schizophrenia, the total duration of affective symptoms is brief relative to the total duration of the illness

In manic-depressive illness, delusions and hallucinations primarily occur during periods of mood instability

Delusional Disorder

 “a condition of unknown cause whose chief feature is a nonbizarre delusion present for at least 1 month”

 Jacobson: Psychiatric Secrets, 2nd ed., Copyright © 2001 Hanley and Belfus

Nonbizarre: involves situations that occur and are possible in real life

 being followed, poisoned, infected, loved at a distance, being deceived by spouse or lover, having a disease

How do you differentiate it from Schizophrenia?

1.

Nonbizzare delusions

2.

minimal deterioration in personality or function

3.

relative absence of other psychopathologic symptoms

 No negative symptoms or catatonia

 Don’t have hallucinations

Types of Delusions

Erotomania: a person, usually of higher status, is in love with the subject

Grandiose: the theme is one of inflated worth, power, knowledge, identity, or special relationship to a deity or important famous person

Jealous: one’s sexual partner is unfaithful

Persecutory: the person is being malevolently treated or conspired against in some way

Somatic: the person has some physical defect, disorder, or disease

Brief Psychotic Disorder

Two concepts

 symptoms may or may not meet criteria for schizophrenia

1.

Short time

 “less than one month but greater than one day”

2.

May have developed in response to a severe psychosocial stressor or group of stressors

Brief Psychotic Disorder

Uncommon

Clinically: one major symptom of psychosis, abrupt onset

Culture Bound Psychotic

Syndromes

Bulimia Nervosa - North America

 Food binges, self induced vomiting, +/- depression, anorexia nervosa, substance abuse

Empacho - Mexico and CubanAmerica

 Inability to digest and excrete recently ingested food

Grisi siknis - Nicaragua

 Headache, anxiety, anger, aimless running

Koro - Asia (my favorite)

 Fear that penis will withdraw into abdomen causing death

Management

 “Remain calm, empathetic and reassuring”

Ensure staff safety

Complete Hx and physical

Psychiatric interview

 Assess pt’s complaint and understanding of current circumstances

 Formal mental status examination

Mental Status Exam

A – appearance

S – speech

E – emotion (mood + affect)

P – perception

T – thought content + process

I – insight / judgment

C - cognition

Management

Assess potential for danger to themselves or others

Assess degree of dysfunction and ability to care for themselves in outpatient setting

Hospitalize

 1st psychotic episode

 Danger to themselves or others

 Grossly debilitated

Management

 “decision to hospitalize psychotic pts is complex and imprecise and often must be made in a short period with limited information”

 Rosen’s 1547

Management

Form 1, Admission Certificate, Mental

Health Act, Section 2

1.

Mental disorder

2.

Likely to present a danger to themself or others

3.

Unsuitable for admission to a facility other than a formal patient

§ Doesn’t want to come in voluntarily

Dissociative Disorders

 Aka. “conversion disorders”

Essential feature:

 “State of disrupted consciousness, memory, identity or perception of the environment”

 Kaplans and Sadock’s Synopsis of Psychiatry 8th edition Williams and Wilkins Baltimore

Dissociative Disorders

Pts have lost the sense of having one consciousness

Feel as though they have no identity, confused about who they are, or have multiple personalities

 “everything that gives people their unique personalities-thoughts, feelings and actions- is abnormal in people with dissociative disorders”

 Kaplans and Sadock’s Synopsis of Psychiatry 8th edition

Williams and Wilkins Baltimore

Dissociative Disorders

Dissociation arises as a self-defense against trauma

Two functions

1. helps people remove themselves from trauma at time of occurrence

2. delays the working through needed to place the trauma in perspective in their lives

Conflicting contradictory representations of the self are kept in separate mental compartments

Dissociative Disorders

Usually connected with trauma, personal conflicts, and poor relationships with others

 “conversion” is used to indicate that the affects of the unsolvable problems are transformed into symptoms

 Dissociative motor disorders, Dissociative anesthesia

Dissociative Disorders

DSM-IV has diagnostic criteria for 4 different Dissociative Disorders

1.Dissociative amnesia

2.Dissociative fugue

3.Dissociative identity disorder

4.Depersonalization disorder

Dissociative Amnesia

 “Characterized by an inability to remember information, usually related to a stressful or traumatic event, that cannot be explained by ordinary forgetfulness, ingestion of substances or general medical condition”

 Kaplans and Sadock’s Synopsis of Psychiatry 8th edition Williams and Wilkins Baltimore

Dissociative Fugue

 “Characterized by sudden and unexpected travel away from home or work, associated with an inability to recall the past and with confusion about a person’s personal identitiy or with the adoption of a new identity”

 Kaplans and Sadock’s Synopsis of Psychiatry 8th edition Williams and Wilkins Baltimore

Dissociative Identity Disorder

Most severe

 “Characterized by the presence of two or more distinct personalities within a single person”

 Kaplans and Sadock’s Synopsis of Psychiatry 8th edition Williams and Wilkins Baltimore

Depersonalization Disorder

 “Characterized by recurrent or persistent feelings of detachment from the body or mind”

 Kaplans and Sadock’s Synopsis of Psychiatry 8th edition Williams and Wilkins Baltimore

Dissociative Disorders

Management

 Consult Psychiatry

Medical Clearance

What is medical clearance?

 “Evaluation and treatment of organic causes of presenting psychiatric complaints, and any existing medical comorbidities prior to transfer of care to the psychiatric service.”

EmergMedClin. 18(2):185-198. 2000

 What constitutes a “medically clear” patient?

 No physical illness identified

 Known co morbid illness but not thought causative

 Adequately treated medical condition

Medical Clearance

 Are we doing a good job of “clearing”

Pt’s?

 Riba and Hale 1990:

Psychosomatics 31(4): 400-404

 Retrospective chart review of 137 pts in ED referred for psychiatric evaluation

137 ED pts w/ psych sx

68% had vitals done

HPI recorded in 33%

Cranial nerve exam in 20%

Medical Clearance

Functional (Psychiatric) vs. Organic

 History “WHY NOW?”

 Precipitating events and chronology / acute stressors

 baseline mental / physical status

 prior psychiatric history / family psych hx

 past medical history

 Meds / Compliance thereof/ drugs of abuse

 collateral hx (friends, family, EMS, old charts)

 Is pt a potential danger to self or others?

 MSE

Medical Clearance

Organic

 Age <12 or >40 yo

 Sudden onset (hrs-days)

 Fluctuating course

 Disorientation

 Dec’d LOC

 Visual hallucinations

 No psychiatric Hx

 Emotional lability

 Abnormal vitals / exam

 Hx of substance abuse / toxins

Functional (Psychiatric)

 Age 13 – 40 yo

 Gradual onset (wksmo’s)

 Continuous course

 Scattered thoughts

 Awake and alert

 Auditory hallucinations

 Past psychiatric Hx

 Flat affect

 Normal physical exam / vitals

 No evidence of drug use

EmergMedClin. 18(2):185-198. 2000

Medical Clearance : Physical

Variety of presentations

 agitated, combative, withdrawn, catatonic, cooperative with blunted affect

Examine all patients

 attention to vital signs, pupillary findings, hydration status, and mental status.

Pay particular attention to fever and tachycardia

 can be sign of neuroleptic malignant syndrome

Look for signs of dystonia, akathisia, tremor, muscle rigidity and

Tardive dyskinesia

Mental status testing should typically reveal clear sensorium and orientation to person, place, and time. Assess attention, language, memory, constructions, and executive functions.

Medical Clearance

Laboratory Studies

 “Routine”:

CBC

Electrolytes incl. Ca ++ and Mg ++

Creatinine and BUN

Urinanalysis

EtOH level

Urine tox screen for drugs of abuse

 other tests as indicated (e.g.. Quantitative drug levels)

EmergMedClinNA. 18(2):185-198. 2000

PsychClinNA. 22(4):819-50.1999

Remember

 psychiatric and organic illness can coexist and interact at the same time in the same patient

 serious organic illness can be masked by acute psychiatric symptoms and difficulties obtaining a reliable Hx

Restraints

 severely agitated patient may require physical restraining, followed by chemical restraining

Physical restraining of a combative patient can lead to serious injury or death

 physical restraints should be minimized in favor of chemical restraints

Restraints

Must document the reason, type and maximum duration of restraint

See CHR Guideline for Patients Requiring

Mechanical/Chemical Restraint

 Rosen’s 5th ed. “The Combative Patient” P.2591

 “The treating physician should not actively participate in applying restraints to preserve the physician-patient relationship and not be viewed as adversarial” p.2595

Medications

All antipsychotics treat the positive symptoms

  hallucinations,

 agitation, restructure disordered thinking

Atypical antipsychotic agents assist with the negative symptoms

 flat affect, avolition, social withdrawal, poverty of speech and thought

 less sedating, fewer movement disorders

Block dopamine receptors in several areas of the brain

Medications

Neuroleptic

 old term used to describe antipsychotics due to their high degree of sedation

 No longer appropriate b/c new agents cause little sedation

Medications in the ED

For sedation or rapid tranquilization

Haloperidol (Haldol)

 Butyrophenone derivative

 5mg IM/PO

Lorazepam (Ativan)

 Benzodiazepine

 2mg IM/PO/IV/SL

Combo of lorazepam 2 mg mixed in the same syringe with haloperidol 5 or 10 mg given IM or IV. Repeat q 20-

30min

 “The Haldol Hammer”

Atypical Antipsychotics

 less likely to produce dystonia and tardive dyskinesia and more likely to improve negative symptoms

Quetiapine (Seroquel)

 Sedating in 15 min, give to “take the edge off”

 25 to 50mg po

Olanzapine (Zyprexa, Zydis wafer)

 5mg or 10mg po

Resperidone (Risperdal, M-tab)

 2mg tab po

 M-tab Coming soon to a hospital near you

“Big time” Medications

Zuclopenthixol deconate (Accuphase)

 A thioxanthene

Depot antipsychotic given by IM injection

Dose 50-150mg IM

Sedates pt up to 72 hours

Medication Side effects

Extrapyramidal syndromes

Acute dystonia

 muscle rigidity and spasm

Laryngeal dystonia

Oculogyric crisis

 bizarre upward gaze paralysis and contortion of facial and neck musculature

Benztropine 2mg po/IM or

Diphenhydramine

50mg IM/IV

Akathisia

 dysphoric sense of motor restlessness

Above +/or benzodiazepine

Medication Side effects

Parkinsonian symptoms

 stiffness, resting tremor, difficulty with gait, and feeling slowed-down

Dry mouth, fatigue, sedation, visual disturbance, inhibited urination, and sexual dysfunction

 adverse reactions to antipsychotic medication or to anticholinergic drugs taken for prophylaxis of dystonia

Oral antiparkinsonian drug

Physostigmine 0.5-

2mg , BZD

Medication Side Effects

Neuroleptic Malignant Syndrome

 “impaired thermoregulation in hypothalamus and

BG due to lack of dopamine activity”

Typically within first 2 wks of therapy

 high fever, severe muscle rigidity

 altered consciousness, autonomic instability, elevated serum creatine kinase levels

 may have:respiratory failure, gastrointestinal hemorrhage, hepatic and renal failure, coagulopathy, and cardiovascular collapse.

Treatment: supportive

 airway management, neuromuscular blockade, IV

BZD, active cooling

Medical/Legal Pitfalls

Most common etiologies for mental status changes are organic, not psychiatric

 Medications, drug intoxication, drug withdrawal syndromes, illnesses causing delirium

Medical Clearance examinations are risky

 “Typically brief and rarely sufficient to rule out organic etiologies”

Schizophrenia Gerstein PS http://www.emedicine.com/emerg/topic520.htm accessed

Jan 27/04

Medical/Legal Pitfalls:

Restraints

Document reasons for needing a restraint and involuntary commitment

 Mention pt/staff safety and protection

Personally ensure restraints are applied safely,

 do not order “restrain prn”

Chemical restraints are preferable to physical when prolonged behavioral control is necessary

 Death can result from prolonged struggle against physical restraints

end

References

Stefan Brennan. R IV psychiatry U of A, member Bohemian FC, IRA

Jacobson: Psychiatric Secrets, 2nd ed.,

Copyright © 2001 Hanley and Belfus

Schizophrenia Gerstein PS http://www.emedicine.com/emerg/topic520.htm

accessed Jan 27/04

 Kaplans and Sadock’s Synopsis of Psychiatry

8th edition Williams and Wilkins Baltimore

 Rosen’s 5th edition

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