Pregnancy outcomes of infertile women with ultrasound-diagnosed adenomyosis for in vitro fertilization and frozen-thawed embryo transfer

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This study found that women with adenomyosis undergoing IVF-ET had higher early miscarriage rates and lower live birth rates compared to controls, but similar implantation, clinical pregnancy, and multiple pregnancy rates, with no impact on neonatal birth weight.

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This retrospective cohort study examined whether ultrasound-diagnosed adenomyosis affects assisted reproductive outcomes among 5,087 infertile women undergoing their first frozen–thawed embryo transfer, comparing those with adenomyosis and tubal factor infertility (n=193) versus tubal factor infertility alone (n=4894) and then applying 1:1 propensity score matching (360 matched). The study found no significant differences between groups in embryo implantation rate, clinical pregnancy rate, or multiple pregnancy rate, but early miscarriage was significantly higher in the adenomyosis group (13.3% vs. 5.6%). Live birth rate was significantly lower with adenomyosis (22.8% vs. 33.3%), and pregnancy complication incidence was higher, while neonatal birth weight was not associated with adenomyosis. A key limitation is its retrospective design with potential residual confounding despite propensity matching. This paper is centrally about adenomyosis—specifically its impact on pregnancy outcomes after IVF and frozen–thawed embryo transfer.

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Abstract

OBJECTIVE: This study aimed to investigate the effect of ultrasound-diagnosed adenomyosis on assisted pregnancy outcomes, i.e., in vitro fertilization-embryo transfer (IVF-ET). METHODS: This was a retrospective cohort study of 18,568 women who had received their first frozen-thawed ET cycle in Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center of Shanxi and the Reproductive Medicine Center of Tianjin Central Obstetrics and Gynecology Hospital from January 2014 to May 2019. A total of 5,087 patients met the inclusion and exclusion criteria, and they were divided into two groups: adenomyosis with tubal factor infertility (study group, n = 193) and only tubal factor infertility (control group, n = 4894). After a 1:1 propensity score match (caliper value = 0.005), 360 cases were matched in the end. RESULT: There was no statistical difference in the embryo implantation rate, clinical pregnancy rate, or multiple pregnancy rate between the two groups (28.4% vs. 31.7%, 42.2% vs. 42.8%, and 11.7% vs. 12.8%, respectively; P > 0.05). However, the early miscarriage rate in the adenomyosis group was significantly higher than that in the control group (13.3% vs. 5.6%, respectively; P = 0.012). The live birth rate was 22.8% in the women with adenomyosis and was observed to be significantly lower than 33.3% in the control group (P = 0.026). The patients with adenomyosis had a higher incidence of pregnancy complications than those without (4.4% vs. 0.6%, respectively; P = 0.018), but the neonatal birth weight was not related to adenomyosis. CONCLUSION: Women with adenomyosis should be treated as being at high risk of early miscarriage. However, maternal adenomyosis has no effect on the birth weight of the newborn.
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Abstract

Objective This study aimed to investigate the effect of ultrasound-diagnosed adenomyosis on assisted pregnancy outcomes, i.e., in vitro fertilization–embryo transfer (IVF–ET).

Methods

This was a retrospective cohort study of 18,568 women who had received their first frozen–thawed ET cycle in Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center of Shanxi and the Reproductive Medicine Center of Tianjin Central Obstetrics and Gynecology Hospital from January 2014 to May 2019. A total of 5,087 patients met the inclusion and exclusion criteria, and they were divided into two groups: adenomyosis with tubal factor infertility (study group, n = 193) and only tubal factor infertility (control group, n = 4894). After a 1:1 propensity score match (caliper value = 0.005), 360 cases were matched in the end.

Result

There was no statistical difference in the embryo implantation rate, clinical pregnancy rate, or multiple pregnancy rate between the two groups (28.4% vs. 31.7%, 42.2% vs. 42.8%, and 11.7% vs. 12.8%, respectively; P > 0.05). However, the early miscarriage rate in the adenomyosis group was significantly higher than that in the control group (13.3% vs. 5.6%, respectively; P = 0.012). The live birth rate was 22.8% in the women with adenomyosis and was observed to be significantly lower than 33.3% in the control group (P = 0.026). The patients with adenomyosis had a higher incidence of pregnancy complications than those without (4.4% vs. 0.6%, respectively; P = 0.018), but the neonatal birth weight was not related to adenomyosis.

Conclusion

Women with adenomyosis should be treated as being at high risk of early miscarriage. However, maternal adenomyosis has no effect on the birth weight of the newborn. Similar content being viewed by others

References

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Microsc Res Tech 60(4):445–449 Author information Authors and Affiliations Contributions X-PZ and Y-FZ conceived the idea and conceptualized the study. RS and Y-JZ collected the data. X-LZ and X-MH analyzed the data. X-YH and Y-JH drafted the manuscript, then X-LZ and Y-JH reviewed the manuscript. All authors read and approved the final draft. Corresponding author Ethics declarations Conflict of interest The authors declare that they have no competing interests. Additional information Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Rights and permissions About this article Cite this article Zhang, XP., Zhang, YF., Shi, R. et al. Pregnancy outcomes of infertile women with ultrasound-diagnosed adenomyosis for in vitro fertilization and frozen–thawed embryo transfer. Arch Gynecol Obstet 304, 1089–1096 (2021). https://doi.org/10.1007/s00404-021-06011-z Received: Accepted: Published: Version of record: Issue date: DOI: https://doi.org/10.1007/s00404-021-06011-z

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Condition tags

adenomyosisinfertility

MeSH descriptors

Adenomyosis Adenomyosis Infertility, Female Infertility, Female Infertility, Female Infertility, Female Child Embryo Transfer Female Fertilization in Vitro Humans Infant, Newborn Pregnancy Pregnancy Outcome Pregnancy Outcome Retrospective Studies

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