Perinatally acquired infections Flashcards
machine like murmur and cataracts - what are the ddx?
TORCHES
HIV
TORCHES infections
toxoplasmosis other rubella CMV herpes / hepatitis syphilis
cats should point to what congenital infection risk?
toxoplasmosis
how is toxoplasmosis gondii acquired?
- cat feces
- undercooked meat
- uncooked eggs
- unpasteurized milk
how is risk of toxoplasmosis transmission affected by gestational age? severity of disease?
- risk increases as gestational age increases
- severity of disease decreases as gestational age increases (if a mother gets toxo first trimester, the severity will be worse)
vertical transmission for toxoplasmosis is most likely in which trimester(s)?
2nd and 3rd
what proportion of toxoplasmosis babies have CNS symptoms?
2/3
what is the most common neuro symptom with toxoplasmosis infection?
chorioretinitis
chorioretinitis is most likely associated with what infection?
toxoplasmosis
what are the CNS symptoms of toxoplasmosis?
- hydrocephalus
- chorioretinitis
- intracranial calcifications
- hydrocephalus
- chorioretinitis
- intracranial calcifications
which infection?
toxoplasmosis
is congenital toxoplasmosis infection usually symptomatic or asymptomatic?
asymptomatic
definition: chorioretinitis
- inflammation of the posterior portion of the uveal tract and retina
what is the uveal tract?
iris, ciliary body, choroid
where are the calcifications located in toxplasmosis?
caudate nucleus, choroid plexus, meninges, subependyma
which calcifications are usually periventricular?
CMV
diagnosing criteria for toxoplasmosis
- serum IgM titers or persistent IgM titers
- ophthamology exam
- neuro exam
- head CT
- LP for toxo PCR
which drugs are used for toxoplasmosis for first 21 weeks of gestation?
spiramycin
which drugs are used for toxoplasmosis confirmed after 18th week of gestation or few remaining weeks of gestation?
- pyrimethamine
- sulfadiazine
- leucovorin
- prednisone