Effects of maternal and prenatal history Flashcards
Maternal rubella
IUGR, postnatal growth retardation, cardiac and great vessel abnormalities, microcephaly, sensorineural deafness, cataracts, microphthalmos, glaucoma, pigmented retinopathy, mental deficiency, neonatal bleeding, hepatosplenomegaly, osteopathy, tooth defects
35% chance of cardiac defects (PDA, PPS, septal defect)
maternal diabetes
Common anomalies include holoprosencephaly (failure of the forebrain to divide into hemispheres), meroencephaly (partial absence of the brain), sacral agenesis, vertebral anomalies, congenital heart defects, limb defects, and renal anomalies.
3-5% chance of cardiac defect (VSD, coarc, TGA)
maternal PKU
25-30% cardiac defects (TET)
Lupus
20-40% chance of cardiac defect (complete heart block)
Alcohol abuse
25-30% risk CHD (septal defects)
IUGR; mental deficiency, microcephaly; ocular anomalies; joint abnormalities; short palpebral fissures
Hydantoin
2-3% chance CHD (pulm and aortic stenosis, PDA, coarc)
lithium
10-20% chance of CHD (Ebstein’s, TA, ASD)
Methotrexate
Multiple defects, especially skeletal, involving the face, cranium, limbs, and vertebral column
drugs known to cause heart defects
amphetamines, alcohol, anticonvulsants (hydantoins, trimethadione, valproic acid, carbamazepine), lithium, retinoic acid, thalidomide, and warfarin (Coumadin)
isotretinoin (accutane)
Microcephaly, absence of the cerebellar vermis, hydrocephalus, Arnold–Chiari malformation, Dandy–Walker syndrome.
Hypotonicity, decreased reflexes, feeding problems, facial nerve paralysis, lack of visual responsiveness, seizures
Craniofacial abnormalities
CHD (Defects of ventricular outflow tracts)
Cleft palate
Thymic aplasia
Phenytoin
Characterized by a typical facies (broad, low nasal bridge, hypertelorism, epicanthal folds, ptosis, and prominent, malformed ears), low-set hairline, and nail hypoplasia.
Associated: Cleft lip and palate, umbilical and inguinal hernias, Microencephaly, anencephaly, myelomeningocele, hydrocephalus
primidone (mysoline)
Microcephaly, hydrocephalus, spina bifida, anencephaly
cocaine
Cocaine alters the norepinephrine, dopamine, and serotonin neurotransmitter pathways.
Exposure to cocaine can result in tachycardia, arrhythmias, hypertension, vasoconstriction, diaphoresis, and mild tremors.
Microcephaly, cerebral infarction, encephalocele.
Depressed interactive behavior, poor organizational responses to environmental stimuli, hyperirritability, altered sleep.
SGA, due to decreased placental blood flow from vasoconstriction
Increased incidence of genitourinary tract anomalies.
Placental abruption, intestinal atresia, and necrotizing enterocolitis d/t vasoconstriction
narcotics
microcephaly, strabismus.
Withdrawal symptoms; increased activity, tone, and arousal to stimulation
warfarin
Nasal hypoplasia, stippled epiphyses, hypoplastic phalanges; eye anomalies; mental deficiency
Microcephaly, hydrocephalus, brain atrophy, Dandy–Walker syndrome