Health supervision Flashcards
microcephaly - definition
head size 2-3 standard deviations below mean age
congenital microcephaly - association
abnormal induction and migration of brain tissue
acquired microcephaly- association
cerebral insult in late third trimester, prenatal period, first year of life -
children usually born with normal head circumference
craniosynostosis definition
premature closure of one or more of the cranial sutures
craniosynostosis - etiology
80-90% are sporadic - 10-20% are familial or a part of a genetic syndrome
when should sutures close by?
90% closure by age 2 and complete by age 5
elongated skull - what is the first suture to close?
sagittal suture
most common form of craniosynostosis?
dolichocephaly/scapholocephaly
elongated skull from closure of the sagittal suture
brachycephaly - what is it?
coronal suture closure – shortened skull
most complicated craniosynostosis?
brachycephaly - associated with men and optic nerve atrophy
trigonocephaly
closure of the metopic suture
when is craniosynostosis usually noted by?
6 months of age
plagiocephaly- definition
asymmetry of the infant head shape usually not associated with premature suture closure
most common plagiocephaly?
postional plagiocephaly
flattening of the occiput and prominence of the ipsilateral frontal area
what is plagiocephaly associated with?
congenital muscular torticollis