psychosis 2007. summary common psychiatric emergency may present to health services other than...
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PSYCHOSISPSYCHOSIS
20072007
SummarySummary
Common psychiatric emergency may present to Common psychiatric emergency may present to health services other than mental health team.health services other than mental health team.
Co-morbidities are common - increase with ageCo-morbidities are common - increase with age First episodes best treated by specialist First episodes best treated by specialist
multidisciplinary teams delivering psychosocial multidisciplinary teams delivering psychosocial interventions as well as drugs.interventions as well as drugs.
Treatment achieves complete remission without Treatment achieves complete remission without relapse in 25%relapse in 25%
Use of low dose well tolerated atypical Use of low dose well tolerated atypical antipsychotic increases compliance and reduces antipsychotic increases compliance and reduces future relapsesfuture relapses
TerminologyTerminology
PsychosisPsychosis disorder of thinking and perception where disorder of thinking and perception where
typically patients do not ascribe their symptoms typically patients do not ascribe their symptoms to a mental disorderto a mental disorder
Positive symptomsPositive symptoms Delusions, hallucinations, thought disorderDelusions, hallucinations, thought disorder
Negative symptomsNegative symptoms A deficit state – what is not thereA deficit state – what is not there
DelusionDelusion False unshakeable belief out of keeping with the False unshakeable belief out of keeping with the
patients cultural educational and social patients cultural educational and social backgroundbackground
TerminologyTerminology
HallucinationHallucination
A sensory perception experienced in A sensory perception experienced in the absence of a real stimulusthe absence of a real stimulus
ProdromeProdrome
A definable period before the onset A definable period before the onset of psychotic symptoms during of psychotic symptoms during which functioning becomes which functioning becomes impaired.impaired.
FrequencyFrequency
1 yr prevalence of non organic psychosis is 1 yr prevalence of non organic psychosis is 4.5/1000 community residents.4.5/1000 community residents.
Commonest age of presentation men < 30 Commonest age of presentation men < 30 women < 35 and people >60.women < 35 and people >60.
Schizophrenia has a 1 yr prevalence of Schizophrenia has a 1 yr prevalence of 3.3/1000 and life time morbidity of 3.3/1000 and life time morbidity of 7.2/10007.2/1000
Psychotic symptoms have a 10.1% Psychotic symptoms have a 10.1% prevalence in non demented community > prevalence in non demented community > 85yrs85yrs
Disorders in which psychotic Disorders in which psychotic symptoms occurssymptoms occurs
SchizophreniaSchizophreniaBipolar disorderBipolar disorderDepressionDepressionSubstance misuse particularly Substance misuse particularly
cannabiscannabisDementiaDementiaParkinson’s diseaseParkinson’s disease
Other causes of psychosisOther causes of psychosis
NeurologicalNeurologicalEpilepsyEpilepsyHead injuryHead injuryCVACVAInfectionInfectionTumoursTumours
Most causes of deliriumMost causes of delirium
SchizophreniaSchizophrenia
Incidence increased byIncidence increased byEthnic originEthnic originMigrationMigrationEconomic inequality in areas of Economic inequality in areas of
high deprivationhigh deprivation
DiagnosisDiagnosis
Diagnosis based on clinical findingsDiagnosis based on clinical findings No confirmatory testsNo confirmatory tests Investigations might be required to rule out Investigations might be required to rule out
organic psychosis.organic psychosis. Most information gained on first assessmentMost information gained on first assessment Antipsychotic treatment can reduce strength Antipsychotic treatment can reduce strength
of delusionof delusion Patients learn quickly that disclosing Patients learn quickly that disclosing
symptoms can lead to implications for drugs symptoms can lead to implications for drugs and libertyand liberty
HistoryHistory
Important to gain patients trust byImportant to gain patients trust by Recording presenting complaints firstRecording presenting complaints first Listening empathicallyListening empathically
Open questionsOpen questions How have things been for you latelyHow have things been for you lately Do you think something funny has been going Do you think something funny has been going
onon Have you heard unusual noises or voicesHave you heard unusual noises or voices Could someone be behind thisCould someone be behind this
HistoryHistory
Enquire about 3 core mood Enquire about 3 core mood symptomssymptomsMoodMoodEnergyEnergyInterest and pleasureInterest and pleasure
Psychosis + major alterations in Psychosis + major alterations in mood may indicate bipolar or mood may indicate bipolar or schizoaffective disorders.schizoaffective disorders.
Other aspects of historyOther aspects of history
Symptoms in other systems especially Symptoms in other systems especially neurological and endocrineneurological and endocrine
Past psychiatric symptomsPast psychiatric symptoms Past medical history and medicationPast medical history and medication Family history of mental health and suicideFamily history of mental health and suicide Alcohol and substance misuseAlcohol and substance misuse Allergies and adverse drug reactionsAllergies and adverse drug reactions
Mental state examinationMental state examination
Thorough documentation improves Thorough documentation improves accuracy now and in later yearsaccuracy now and in later years
General behaviour General behaviour over arousal and hostility suggestive of over arousal and hostility suggestive of
positive symptoms.positive symptoms. Irritability suggestive of elevated moodIrritability suggestive of elevated mood Catatonia and negativism rare Catatonia and negativism rare Altered consciousness unusual in non organic Altered consciousness unusual in non organic
psychosispsychosis Intermittent clouding suggests deliriumIntermittent clouding suggests delirium
Mental state examinationMental state examination
General behaviourGeneral behaviourDisorganised speech indicates thought Disorganised speech indicates thought
disorderdisorderStilted and difficult conversation occurs Stilted and difficult conversation occurs
with negative symptomswith negative symptomsNew words – neologisms best written New words – neologisms best written
downdownRandom changes in conversationRandom changes in conversationFast or pressured speech suggests maniaFast or pressured speech suggests mania
Mental State ExaminationMental State Examination
MoodMoodDepressed or elevatedDepressed or elevated
AffectAffectNormal or flatNormal or flat
Asses suicidal riskAsses suicidal riskCognitive impairmentCognitive impairment
Grossly abnormal indicates learning Grossly abnormal indicates learning disability or organic disorderdisability or organic disorder
Differential diagnosisDifferential diagnosis
Bipolar affective disorderBipolar affective disorder Schizoaffective disorderSchizoaffective disorder Severe depression with psychotic featuresSevere depression with psychotic features Delusional disorderDelusional disorder Post traumatic stress disorderPost traumatic stress disorder Obsessive compulsive disorderObsessive compulsive disorder Schizotypal or paranoid personality Schizotypal or paranoid personality
disorderdisorder AspergersAspergers ADHDADHD
Collateral historyCollateral history
Important as family or friends may Important as family or friends may have noted strange behaviourhave noted strange behaviour
May identify a prodromeMay identify a prodromeAcute stress causing symptomsAcute stress causing symptomsGain information about premorbid Gain information about premorbid
personalitypersonalityAre beliefs culturally sanctioned and Are beliefs culturally sanctioned and
not delusionalnot delusional
Positive psychotic symptomsPositive psychotic symptoms
Paranoid delusionParanoid delusion Any delusion that refers back to selfAny delusion that refers back to self
Delusions of thought interferenceDelusions of thought interference Delusions that others can hear read insert or Delusions that others can hear read insert or
steal one’s thoughtssteal one’s thoughts Passivity phenomenaPassivity phenomena
Beliefs that others can control your will, limb Beliefs that others can control your will, limb movements, bodily functions or feelings.movements, bodily functions or feelings.
Thought echoThought echo Hearing own thoughts spoken out loudHearing own thoughts spoken out loud
Positive psychotic symptomsPositive psychotic symptoms
Third person auditory hallucinationsThird person auditory hallucinations Voices speaking about the patient, running Voices speaking about the patient, running
commentaries – common in non affective psychosiscommentaries – common in non affective psychosis Hallucinations without affective contentHallucinations without affective content Second person auditory hallucinationsSecond person auditory hallucinations
Voices speaking to patient - may give commandsVoices speaking to patient - may give commands Thought disorderThought disorder
Thought block, over inclusive thinking, difficulties Thought block, over inclusive thinking, difficulties in abstract thought – can’t explain proverbsin abstract thought – can’t explain proverbs
Negative symptomsNegative symptoms
Apathy – disinterest blunted affectApathy – disinterest blunted affect Emotional withdrawal – flat affectEmotional withdrawal – flat affect Odd or incongruous affect Odd or incongruous affect
Smiling when recounting sad eventsSmiling when recounting sad events Lack of attention to personal hygieneLack of attention to personal hygiene Poor rapportPoor rapport
Reduced verbal and non verbal communication Reduced verbal and non verbal communication no eye contactno eye contact
Lack of spontaneity and flow of Lack of spontaneity and flow of conversationconversation
Which treatment settingWhich treatment setting
Best treated in least restrictive Best treated in least restrictive settingsetting
70% of first episodes end up in 70% of first episodes end up in hospitalhospital
Older adults, adolescents and Older adults, adolescents and post partum women have post partum women have complex needs and require complex needs and require admission to specialist units.admission to specialist units.
TreatmentTreatment
Patients declining treatment need Patients declining treatment need assessment under the mental health assessment under the mental health actactDanger to self –suicide, unsafe Danger to self –suicide, unsafe
behaviour, exploitation by othersbehaviour, exploitation by othersDanger to others – over arousal, Danger to others – over arousal,
potential to harm, risk of acting on potential to harm, risk of acting on delusiondelusion
Special GroupsSpecial Groups
Groups requiring special Groups requiring special unitsunitsOlder AdultsOlder AdultsAdolescentsAdolescentsPost- partum womenPost- partum women
ManagementManagement
Listen to patients relatives to catch Listen to patients relatives to catch relapse early and identify harmful relapse early and identify harmful components of ward environmentcomponents of ward environment
Consult with early intervention teamConsult with early intervention team Identify and change environmental factors Identify and change environmental factors
that perpetuate psychosisthat perpetuate psychosis When new symptoms occur consider drug When new symptoms occur consider drug
side effectsside effects Start psychosocial interventions earlyStart psychosocial interventions early Test for substance misuseTest for substance misuse
ManagementManagement
All antipsychotics cause All antipsychotics cause SedationSedationWeight gainWeight gainImpaired glucose tolerance – metabolic Impaired glucose tolerance – metabolic
syndrome insulin resistance increased syndrome insulin resistance increased risk cardiovascular events measure risk cardiovascular events measure waist circ.waist circ.
Lower seizure thresholdLower seizure threshold? Increased risk of thromboembolism? Increased risk of thromboembolism
Typical antipsychotic drugsTypical antipsychotic drugs
Cause moreCause moreExtrapyramidal sideffectsExtrapyramidal sideffectsRaised prolactin – sexual dysfunctions and Raised prolactin – sexual dysfunctions and
galactorrhoeagalactorrhoeaAnticholinergic sideffects – dry mouth Anticholinergic sideffects – dry mouth
tachycardia urinary obstructiontachycardia urinary obstructionAntiadrenergic – postural hypotension Antiadrenergic – postural hypotension
impotenceimpotence
ManagementManagement
Psychosocial with strong Psychosocial with strong evidence for benefitevidence for benefitCBT reduces impact of symptomsCBT reduces impact of symptomsFamily interventions prevent Family interventions prevent
relapserelapsePsycho educational interventionsPsycho educational interventionsSupported employmentSupported employment
PrognosisPrognosis
Relapse at one yearRelapse at one yearAntipsychotic treatment but on Antipsychotic treatment but on
psychosocial interventionpsychosocial intervention40% but 62% if in stressful 40% but 62% if in stressful
environmentenvironment27% of patients with first psychotic 27% of patients with first psychotic
episodeepisode48%when 548%when 5thth or more psychotic or more psychotic
episodeepisode
PrognosisPrognosis
Relapse at one yearRelapse at one yearPlacebo treatment no Placebo treatment no
psychosocial interventionpsychosocial intervention61% with first psychotic episode61% with first psychotic episode87% with 587% with 5thth or more psychotic or more psychotic episodesepisodes
PrognosisPrognosis
Relapse at one yearRelapse at one yearAntipsychotic treatment with Antipsychotic treatment with
psychosocial interventionspsychosocial interventions19% with family education19% with family education20% with social skills training20% with social skills training0% with both interventions0% with both interventions
PrognosisPrognosis
Recovery at 15-25 years defined Recovery at 15-25 years defined as global assessment of function as global assessment of function >60>60
37.8% with schizophrenia37.8% with schizophrenia54.8% with other psychosis54.8% with other psychosis
MaintenanceMaintenance
After recoveryAfter recoverySingle antipsychotic for one year after Single antipsychotic for one year after
first episode followed by gradual first episode followed by gradual withdrawal in asymptomatic patientswithdrawal in asymptomatic patients
Multiple psychotic episodes require Multiple psychotic episodes require longer prophylaxsislonger prophylaxsisThere are high personal and health service There are high personal and health service
costs for relapse so decisions need to be costs for relapse so decisions need to be made carefullymade carefully
Risk of RelapseRisk of Relapse
Indicators of relapse areIndicators of relapse areResidual disabilityResidual disabilityFamily history of psychosisFamily history of psychosisCurrent substance misuseCurrent substance misuse