Schizophrenia Flashcards
risk ^ 50% by ?
childhood viral CNS infection
what is it assumed that SZP is related to?
over activity of dopamine pathways in the brain
positive symptoms
delusions
hallucinations
thought disorder
negative symptoms
apathy
lack of volition (will power)
social withdrawal
cognitive impairment
1st rank symptoms
passivity phenomena delusional perception delusional hallucinations (mainly auditory) thought interference
what is passivity phenomena
belief that they are no longer in control of their own body
Time frame after which SZP can be diagnosed
dont diagnose unless symptoms last for >= 6 months and are present much of the time for at least 1m
poor prognostic indiactors
male insidious onset early onset cognitive impairment enlarged ventricles
Examples of atypical antipsychotics
risperidone
olanzapine
quetiapine
what is more common with the use of atypicals than typicals?
metabolic syndrome
What is better about atypicals
less likely to induce EPSE’s
better at tx -ve symptoms
why do EPSE’s occur
antipsychotics block D2 receptors in the nigrostriatum
examples of typical antipsychotics
HTC
chlorpromazine
thioridazine
haloperidol
what is acute dystonia
muscle spasms
can occur within hours of starting antipsychotics
try procyclidine to treat
treatment of EPSE’s
decrease dose, change to atypical, or try procyclidine (an Ach antagonist)