Preferred Label : GAIA Level 3b Prenatally Diagnosed Congenital Microcephaly;
NCIt synonyms : Global Alignment of Immunization safety Assessment in pregnancy Level 3b Prenatally
Diagnosed Congenital Microcephaly;
NCIt related terms : Level 3b Prenatally Diagnosed Congenital Microcephaly;
NCIt definition : GAIA Level 3B Prenatally Diagnosed Congenital Microcephaly is defined by three criteria:
first, the fetus is at least 24 weeks gestational age (GA), with GA based on certain
or uncertain last menstrual period (LMP) date, with fundal height and no confirmatory
first or second trimester ultrasound (US) scan, OR uncertain LMP with second trimester
ultrasound, intrauterine insemination (IUI) OR embryo transfer date; second, a head
circumference (HC) measurement either 2 standard deviations (SD) below the mean or
less than the third percentile according to fetal US examination, using appropriate,
standardized reference charts according to GA and gender for the population (e.g.
WHO growth reference charts if GA greater than or equal to 37 weeks and Intergrowth-21st
reference charts for GA 24 to 36 weeks); third, no confirmation of microcephaly with
any additional US or by HC measurement at either birth or autopsy.;
Alternative definition : GAIA: Level 3B Prenatally Diagnosed Congenital Microcephaly is defined by three criteria:
first, the fetus is at least 24 weeks gestational age (GA), with GA based on certain
or uncertain last menstrual period (LMP) date, with fundal height and no confirmatory
first or second trimester ultrasound (US) scan, OR uncertain LMP with second trimester
ultrasound, intrauterine insemination (IUI) OR embryo transfer date; second, a head
circumference (HC) measurement either 2 standard deviations (SD) below the mean or
less than the third percentile according to fetal US examination, using appropriate,
standardized reference charts according to GA and gender for the population (e.g.
WHO growth reference charts if GA greater than or equal to 37 weeks and Intergrowth-21st
reference charts for GA 24 to 36 weeks); third, no confirmation of microcephaly with
any additional US or by HC measurement at either birth or autopsy.;
NCI Metathesaurus CUI : CL512642;
Origin ID : C128765;
UMLS CUI : C4330022;
Semantic type(s)
- concept_is_in_subset
