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J Matern Fetal Neonatal Med. 2013 Apr;26(6):563-5. doi: 10.3109/14767058.2012.743524. Epub 2012 Dec 12.

Cervical length and risk of antepartum hemorrhage in presence of low-lying placenta.

Author information

1
Department of Obstetrics and Gynecology, St Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy.

Abstract

OBJECTIVES:

To evaluate whether transvaginal ultrasound cervical length (TVU CL) can predict antepartum bleeding (APB) in women with low-lying placenta.

STUDY DESIGN:

A retrospective study was performed including pregnancies with low-lying placenta for which third trimester TVU CL was available. Multiple pregnancies were excluded. Short cervix was defined as TVU CL ≤25 mm. Outcomes of interest were compared with respect to the TVU CL.

RESULTS:

Forty three cases of singleton pregnancies complicated by low-lying placenta in third trimester were identified. Short cervix was reported in 8 cases (19%). APB (75% vs. 31 %, p = 0.02), blood transfusions (25% vs. 3%, p = 0.02), lower birth weight (2246 vs. 2985 g, p = 0.02), and neonatal intensive care unit (NICU) admissions (50% vs. 17%, p = 0.04) were more frequent in the women with short cervix. Rate of unplanned cesarean delivery for APB was similar between both the groups (25% vs. 28%, p = 0.83).

CONCLUSIONS:

In women with low-lying placenta persisting into third trimester, short cervical length can be used as a predictor for APB.

PMID:
23153020
DOI:
10.3109/14767058.2012.743524
[Indexed for MEDLINE]
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