Ultrasound screening for fetal aneuploidy using soft markers in the overweight and obese gravida.

Abstract:

OBJECTIVE:To determine the completion rate of ultrasound surveys for aneuploidy markers by maternal body mass index (BMI). METHODS:A retrospective review of ultrasounds on midtrimester singleton pregnancies was performed. Subjects were grouped as normal, overweight (BMI 25-29.9 kg/m(2)), and obese: class I (30-34.9 kg/m(2)), class II (35-39.9 kg/m(2)), and class III (>or= 40 kg/m(2)). Examinations with visualization of at least seven of eight markers were considered complete. RESULTS:Of 14 353 ultrasounds reviewed, 5690 patients were eligible: 43% normal, 29% overweight, 27% obese. Completion rates differed significantly between groups (64% normal, 64% overweight, 61% class I, 55% class II, 47% class III, p < 0.001). The screen positive rates (>or=1 marker) differed significantly overall (16% normal, 13% overweight, 15% class I, 12% class II, 10% class III, p < 0.02), but not for complete examinations (p = 0.42). CONCLUSIONS:Since completion rates for ultrasound aneuploidy screening are inversely related to maternal obesity, obese women are underscreened.

journal_name

Prenat Diagn

journal_title

Prenatal diagnosis

authors

Tsai LJ,Ho M,Pressman EK,Thornburg LL

doi

10.1002/pd.2554

subject

Has Abstract

pub_date

2010-09-01 00:00:00

pages

821-6

issue

9

eissn

0197-3851

issn

1097-0223

journal_volume

30

pub_type

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