Reference values for the cervical length measurement in the second trimester of pregnancy using the transvaginal ultrasound in a large Brazilian population
Obstetrics & Gynecology Science
;
: 303-306, 2016.
Article
in English
| WPRIM
| ID: wpr-81078
ABSTRACT
To establish reference values for the cervical length (CL) measurement by transvaginal ultrasound between 20 and 24+6 weeks of gestation in a large Brazilian population. A retrospective cross-sectional study was performed with 996 singleton pregnancies. The CL measurement (mm) using the transvaginal ultrasound was obtained in a sagittal view and the calipers positioned to measure the linear distance between the triangular area of echodensity at the external os and the internal os. The median±standard deviation and ranges for the CL measurement (mm) was 37.0±10.7 (range, 8 to 51). CL measurement did not modify significantly with gestational age. The observed percentiles for the CL measurement (mm) considering all number case were the following 5th, 28 mm; 50th, 37 mm; and 95th, 45 mm. Reference values for the CL measurement by transvaginal ultrasound between 20 and 24+6 weeks of gestation in a large heterogeneous Brazilian population were established.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pregnancy Trimester, Second
/
Reference Values
/
Cervix Uteri
/
Cross-Sectional Studies
/
Retrospective Studies
/
Ultrasonography
/
Gestational Age
/
Cervical Length Measurement
Type of study:
Diagnostic study
/
Observational study
/
Prevalence study
/
Risk factors
Limits:
Female
/
Humans
/
Pregnancy
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Obstetrics & Gynecology Science
Year:
2016
Type:
Article
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