Abstract
Purpose
Potential risk of adverse obstetrical outcomes has been shown among breast cancer survivors. Therefore, the aim of this systematic review and meta-analysis was to evaluate the relationship between history of breast cancer (BC) and obstetrical outcomes.
Methods
PubMed, EMBASE, and Medline were searched from the inception of each database to April 2019. Selection criteria included prospective and retrospective cohort studies of BC pregnant survivors. The meta-analysis was performed by computing odds ratios (ORs) using both fixed and random-effects models. Quality assessment of the included studies was performed using the Newcastle–Ottawa Scale and the review was registered with PROSPERO number CRD42019127716.
Results
Four studies, including 1466 cases of BC survivors and 6,912,485 controls, were included. Compared with controls, a higher incidence of obstetrical complication was found in women with history of BC. The incidence of preterm birth (PTB) in the study group was 11.05% compared with 7.79% in the control group (1.68, 95% confidence interval 1.43–1.99). Breast cancer history was also associated with low birth weight (LBW) (study group: 9.26% vs. control group: 5.54%, 1.88, CI 95% 1.55–2.27), cesarean section (CS) (study group: 19.76% vs. control group 10.81%, 1.78, CI 95% 1.39–2.27), intrauterine fetal death (IUFD) (study group: 0.004% vs. control group 0.36%, of 1.25 CI 95% 0.36–4.35), and fetal anomalies (study group: 5.8% vs. control group: 4.26%, 1.45 CI 95% 1.01–2.09).
Conclusions
History of BC was associated with adverse obstetrical outcomes.
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Abbreviations
- BC:
-
Breast cancer
- PTB:
-
Preterm birth
- LBW:
-
Low birth weight
- CS:
-
Cesarean section
- IUFD:
-
Intrauterine fetal death
- NOS:
-
Newcastle–Ottawa Scale
- ORs:
-
Odds ratios
- CIs:
-
Confidence intervals
- MeSH:
-
Relevant medical subject heading
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D’Ambrosio, V., Vena, F., Di Mascio, D. et al. Obstetrical outcomes in women with history of breast cancer: a systematic review and meta-analysis. Breast Cancer Res Treat 178, 485–492 (2019). https://doi.org/10.1007/s10549-019-05408-4
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DOI: https://doi.org/10.1007/s10549-019-05408-4