Schizoaffective disorder Flashcards
criterion A for schizoaffective disorder
an uninterrupted period of illness during which there is a major MOOD episode (major depressive or manic) CONCURRENT with criterion A of SCHIZOPHRENIA
criterion B of schizoaffective disorder
delusions or hallucinations for TWO OR MORE WEEKS in the ABSENCE of a major mood episode during the LIFETIME DURATION of the illness
criterion C of schizoaffective disorder
symptoms that meet criteria for a major mood episode are present for a MAJORITY of the total duration of the active and residual portions of the disease
criterion D for schizoaffective disorder
disturbance not attributable to the effects of a substance or another medical condition
what are the two subtypes of schizoaffective disorder
bipolar subtype and depressive subtype
what specifier is there other than the two subtype specifiers for schizoaffective disorder
with catatonia
and then the first episode/acute etc ones
what criteria for schizophrenia do NOT have to be met in order to make a dx of schizoaffective disorder
criterion B–> social dysfunction
and
criterion F–> rule out ASD or other communication disorder of childhood
are criteria are criteria that do not have to be met
why must schizoaffective disorder–depressed type necessarily include “depressed mood” and not just anhedonia in order to make a diagnosis?
because anhedonia is common in schizophrenia so we ALSO need depressed mood in order to make a schizoaffective disorder diagnosis
in occupational dysfunction a defining criterion for schizoaffective disorder
no (unlike schizophrenia)
what is anosognosia
poor insight
how common is schizoaffective disorder compared to schizophrenia
about 1/3 as common
what is the lifetime prevalence of schizoaffective disorder
0.3%
is schizoaffective disorder more prevalent in men or women
in women–> mainly due to an increased incidence of the depressive type among females
what is the typical age at onset for schizoaffective disorder
early adulthood
but can occur anywhere from adolescence to late in life
how does the prognosis for schizoaffective disorder compare to the prognosis for schizophrenia
prognosis is better in schizoaffective disorder
**but worse than the prognosis for primary mood disorders
if someone has three months of depression, followed by three months of psychotic symptoms (but the two do not overlap) can they be dx with schizoaffective disorder
no–> it is the co-occurrence of mood and psychotic symptoms that is diagnostic
which schizoaffective disorder subtype is more prominent in young adults? which is more prominent in older people?
bipolar type more common in young adults
depressed type more common in older people
list risk factors for schizoaffective disorder
- increased risk of schizoaffective disorder in first degree relatives of those with schizophrenia, bipolar disorder or schizoaffective disorder
what is the lifetime risk of suicide in those with schizoaffective disorder or schizophrenia
5%
*presence of depressive symptoms confers higher risk of suicide
in what geographic population is rate of suicide in those with schizoaffective disorder/schizophrenia higher
suicide rates higher in north american vs other populations (i.e european)
what are other mental disorders that should be considered in the ddx for schizoaffective disorder
- psychotic disorder due to another medical conditions
- delirium
- major neurocognitive disorder
- substance/med induced psychotic disorder or neurocognitive disorder
- bipolar disorders with psychotic features
- MDD with psychotic features
- schizotypal, schizoid or paranoid personality disorder
- brief psychotic disorder
- schizophreniform disorder
- schizophrenia
- delusional disorder
what other two psychiatric conditions are notably common amongst those with schizoaffective disorder (i.e which are commonly comorbid)
anxiety disorders
substance use disorders
who first described the term “schizoaffective psychosis”
Jacob Kasanin (russian american psychiatrist) in 1933
how was schizoaffective disorder first conceptualized
as a middle ground diagnosis between schizophrenia and mood disorders
as an episodic illness with good outcomes
