Congenital Flashcards
Early signs of congenital infection
growth retardation, malformations of heart, brain, and limbs, still birth micro/macrocephaly
early signs of Perinatal infections
preterm labor, meningitis, pneumonia
how do you Dx a congenital infection
PCR sample from neonate
TORCH
toxoplasmosis Other (syphilis, VZV, parvo, Hep B, HIV) Rubella Cytomegalo Herpes simplex
Toxoplasma gondii routes of transmission
eating raw meat of domestic animals or through cat feces
classic triad of congenital toxoplasmosis
chorioretinitis, hydrocephalus, intracranial calcifications
Dx toxoplasmosis
serology on mother and infant, IgM+ is diagnostic
Treating congenital toxoplasmosis
pyrimethamine + sulfadiazine + folinic acid for 1 year
Common manifestations of early congenital syphilis
appear by 5wks: large, puffy placenta, hepatomegaly, rhinitis, rash, lymphadenopathy, mom with little prenatal care
Treatment for congenital syphilis
Penicillin G for 10 days
Symptoms of Congenital rubella
Hearing loss, congenital heart defects, ophthalmic problems, IGR, neurologic (mental, psychomotor retardation, microcephaly), bone lesions, purpura, pneumonitis
Classic triad of congenital rubella
microcephaly, Patent ductus arteriosis, cataracts
Risk factors for congenital CMV
prior infection, pregnancy at young age, first pregnancy, new sex partner during pregnancy, ppl w/ frequent contact w/ babies and toddlers
Symptoms of congenital CMV
hearing loss, hepatosplenomegaly, chorioretinitis, microcephaly, jaundice
Treatment of congenital CMV
ganciclovir/valganciclovir (teratogen)
Spectrums of congenital herpes simplex
- variables in mom
- variables in baby
- type 2 is worse than type 1; primary infection is worse than reactivation; visible lesions worse than subclinical reactivation
- intrauterine is worse than perinatal; disseminated is worse than encephalitis which is worse than skin lesions
Prevention of congenital herpes
treat mom with antivirals: acyclovir/valtrex
C-section
What is the most severe scenario for congenital herpes
mom has primary HSV-2 infection during pregnancy bc of new sex partner, or newly infected old partner
Congenital varicella
very rare (vaccine), limb and brain development impaired, poor outcome
Treat congenital varicella
acyclovir
Prevention of congenital varicella
vaccination of all seronegative women, advise seronegative women to avoid children w/ pox or shingles
Congenital parvovirus
severe anemia in utero that can be treated with inutero transfusion; if not seen it can cause fetal death
Antiretroviral treatment for pregnant women w/ HIV
zidovudine regimen: antenatal, intrapartum, and neonatal
Group B strep bacteriology
gram + diplococcus, normal flora
Early onset Group B strep
0-7 days: sepsis, bone, and brain, pneumonia (grunting, hypoxia, etc)
Late onset group b strep
7-89days: sepsis, bone, brain, meningitis (bulging fontanel, neurologic findings)
Late, late onset group b strep
> 3mo: sepsis, bone, brain meningitis
Why aren’t TORCH panels routine screening?
Because we can’t do a whole lot.