Impact of subchorionic hematoma in early pregnancy on obstetric complications: A retrospective cohort study in women who had live births after frozen-thawed embryo transfer.

ABSTRACT:

Purpose

We investigated the contribution of subchorionic hematoma (SCH) involvement in early pregnancy to the risk of pregnancy complications in women who underwent frozen-thawed embryo transfer (FET).

Methods

A hypoechogenic area surrounding the gestational sac at early pregnancy on ultrasound was defined as SCH. Simultaneously, the presence of vaginal bleeding was evaluated. We included 1416 women with live births after FET between March 2015 and September 2018 in this study. The frequency of pregnancy complications was compared between the SCH (n = 340) and non-SCH (n = 1076) groups.

Results

The adjusted odds ratio of abnormal placental adhesion and placenta previa for the SCH group relative to the non-SCH group was 7.01 [2.96-18.00] and 3.77 [1.24-11.91], respecti

SUBMITTER: So S 

PROVIDER: S-EPMC7542017 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature