Abstract
Objective
Obstetric complications occur more frequently in pregnancies after in vitro fertilization (IVF). We attempted to determine the correlation between subchorionic
hematoma and IVF pregnancies.
Study design
We analyzed 194 pregnancies achieved by infertility treatment between January 2008
and February 2012 at our hospital. Among these, 67 were achieved by IVF and 127 by
non-IVF approaches. We compared the frequency of subchorionic hematoma between the
groups and examined the risk factors for subchorionic hematoma in the IVF group.
Results
No significant differences regarding age and the number of uterine surgery were observed
between the groups. The duration of infertility was longer, parity and the rate of
luteal support were higher in the IVF group compared with that in the non-IVF group.
The frequency of subchorionic hematoma was significantly higher in the IVF group (22.4%)
than that in the non-IVF group (11%) (P = 0.035). Univariate analysis in the IVF group demonstrated that frozen–thawed embryo
transfer (OR, 6.18; 95% CI, 1.7–22.4), parity ≥ 1 (OR, 3.67; 95% CI, 1.0–13.2) and blastocyst transfer (OR, 3.75; 95% CI, 1.1–13.3)
were risk factors for the subchorionic hematoma.
Conclusion
The frequency of subchorionic hematoma is high in IVF pregnancies, and frozen–thawed
embryo transfer, parity ≥ 1, and blastocyst transfer may contribute to subchorionic hematoma onset.
Keywords
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Article info
Publication history
Published online: July 29, 2014
Accepted:
July 20,
2014
Received in revised form:
June 2,
2014
Received:
March 12,
2014
Identification
Copyright
© 2014 Elsevier Ireland Ltd. Published by Elsevier Inc. All rights reserved.
