Maternal-Fetal Relations, Microcephaly
Conditions
Keywords
Fetus, Skull, ultrasonography
Brief summary
In this study, measurements of fetal and maternal head circumference will be collected. This data will be presented in table or graph form. The effect of maternal head circumference on fetal head circumference will be evaluated and presented in either formula or graph form.
Interventions
OTHERno intervention
Sponsors
Clalit Health Services
Study design
Observational model
OTHER
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
ALL
Age
18 Years to 40 Years
Healthy volunteers
Yes
Inclusion criteria
* Singleton pregnancy * Valid first trimester sonogram
Exclusion criteria
* Women under 18 years of age * Women over 40 years of age * Multi fetal pregnancy * No accurate dating of pregnancy age * Participant non compliance or cannot complete contact details * Technical difficulty measuring fetal or maternal skull * Abnormal fetal or maternal skull * Familial hereditary disease, mental retardation * Chronic maternal illness * Maternal on chronic medication * Abnormal screening test during current pregnancy * Abnormal sugar metabolism or Hypertension during current pregnancy
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Fetal head circumference (millimeters) | 14 through 40 weeks pregnancy | Israeli fetal population. Will be reported in table and / or graph form |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Relationship of fetal head circumference (mm) to maternal head circumference (mm) | 14 through 40 weeks pregnancy where applicable | Calculating effect of maternal head circumference on fetal head circumference during pregnancy and adjusting (Formula) fetal head circumference normal values (+/- 2SD) |
| Maternal head circumference (millimeters) | age 18 through 40 | Israeli maternal population. Will be reported in table and / or graph form |
Countries
Israel
Outcome results
None listed