Teratogens Flashcards
Thalidomide effects
Amelia, meromelia, phocomelia
deafness blindness cleft palate congenital heart disease malformations of inner/outer ear intellectual disability autism UG/GI defects
Thalidomide random facts
used for nausea/sedative
Led to Kefauver-Harris Drug Amendments Act in 1962
Increased length of process for drug approval
DES daughters
increased risk of vaginal clear cell adenocarcinoma
2x increase in vaginal/cervical intraepithelial neoplasm
structural defects in cervix/uterus/Fallopian tubes
Infertility
poor pregnancy outcomes
decreased endometrial thickness
reduced uterine perfusion
DES sons
increased risk of epididymal cysts microphallus undescended testicle testicular hypoplasia decreased sperm count
DES use
estrogen used to prevent SAB and PTL
widely supported though no benefits demonstrated
Vitamin A effects
cleft lip
cleft palate
hydrocephalus
cardiac deformities
Vitamin A teratogenic dose
> 10,000 units of Vitamin-A daily
Isotretinoin effects
increased risk of SAB
20-30% of neonates have abnormality
abnormalities can involve any organ system
ACE inhibitors effects if used in 2nd/3rd trimesters
growth retardation
renal dysfunction
fetal demise
oligohydramnios
ACE inhibitors effects if used in 1st trimester
risks unclear
CV and CNS abnormalities
SSRI effects
increased CV defects
may increase risk of SAB
inhibit serotonin signaling in heart development
late exposure–>increased transient newborn respiratory distress
Anticonvulsants effects
cleft palate cleft lip atrial septal defects spina bifida developmental delay limb abnormalities
NSAIDs 1st trimester use
increased risk of cardiac ventricular and septal defects
NSAIDs 3rd trimester use
pulmonary HTN in newborn
Warfarin effects if used in 1st trimester
skeletal abnormalities
nasal hypoplasia
long bone development abnormalities
limb hypoplasia