complications of prematurity Flashcards
(46 cards)
RDS
Respiratory distress syndrome. <34 weeks. surfactant deficit. alveoli at great risk for collapse. 60% (?) at 29 weeks. treatment: surfactant replacement, O2, mechanical ventilation.
BPD
bronchopulmonary dysplasia. require supplemental O2 and or mechanical ventilation. born 10+ weeks premie. developmental delays. chronic lung disease.
Hylaine membrane disease
seen in babies w/ RDS
Patent Ductus Arteriosus
results in heart murmur
bradycardia
slow heart rate
necrotizing enterocolitis
small intestinal wall necrosis. idiopathic. suspect bacteria, intestinal ischemia, intestinal mucosal immaturity/dysfuntion. increased risk 10 x’s w/ formula feeding
hyperbillirubinemia
jaundice from accumulation of bilirubin in blood since liver can’t process it due to it’s immaturity. excessive jaundice –>kernicterus. treat with phototherapy. Can cause brain damage.
ROP-retinopathy of prematurity
retinal vascularization is incomplete at time of birth leading to retinal detachment. can lead to blindness. <30 weeks at highest risk.. supplemental O2 for RDS.
hearing impairment
due to prematurity.
AGA
appropriate gestational age-birth weight between the 10th and 90th percentile
SGA
small for gestational age. <10th percentile. full term but underweight
LGA
large for gestational age. birth weight >90th%
normal birthweight
5#8oz-8#13oz.
LBW
low birthweight <5#8oz
VLBW
very low birthweight <1500 grams/3#4oz.
ELBW
extremely low birthweight: <2#3oz. born before 27 weeks
MLBW
moderately low birthweight: 3#5oz.-5#8oz.
Micro preemie
750g/1#10oz. about 23 weeks.
major complications of prematurity
RDS, BPD, PDA, NEC, hyperbillirubinemia, ROP, hearing impairment
MAJOR complications of prematurity (born @ 28-32 weeks)
IVH, PVL, RDS, seizures. neurologic, respiratory, cardiac, GI, sensory.
IVH
intraventricular hemorrhage. most common is lateral ventricular bleed in infants<32 weeks and less than 1500g. outcome: spastic hemiparesis, quadriparxsis, cognitive deficits. cranial sonogram will pick this up. suspect CP as a result.
PVL
periventricular leukomalacia. white matter necrosis surrounding lateral ventricles secondary to decreased oxygenation and blood flow to the brain. spastic diplegia or spastic quadriparesis, cognitive deficits. CT.
apnea
in a baby lack of breathing for 20 or more seconds due to system immaturity. may indicate systemic med. probs. occurring in as many as 90% of infants who weigh less than 1000g at birth.
gestational age of development of sense of smell
28 weeks