Subchorionic hematomas are increased in early pregnancy in women taking low dose aspirin

Our prospective, cohort study demonstrates that the use of aspirin may be associated with an increased risk of developing subchorionic hematomas in early pregnancies.

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Authors

Ashley Truong, B.S., M. Mercedes Sayago, M.D., William H. Kutteh, M.D., Ph.D., Raymond W. Ke, M.D.

Volume 105, Issue 5, Pages 1241-1246

Abstract

Objective:

To determine the frequency of subchorionic hematomas (SCH) in first-trimester ultrasound examinations of patients with infertility and recurrent pregnancy loss (RPL) and in patients from a general obstetric population. To determine if the method of assisted reproduction utilized or the use of anticoagulants, such as heparin and aspirin (ASA), influenced frequency of SCH.

Design:

Prospective, cohort study.

Setting:

Fertility clinic and general obstetrics clinic.

Patient(s):

Five hundred and thirty-three women who were pregnant in the first-trimester.

Interventions:

Not applicable.

Main Outcome Measure(s):

Frequencies of subchorionic hematomas in women based on diagnosis, use of anticoagulants, and fertility treatment.

Result(s):

SCH were identified in 129/321 (40.2%) in the study group compared to 23/212 (10.9%) in the control group. Fertility diagnosis and the use of heparin did not appear to affect the frequency of SCH in the first trimester; however, SCH occurred at an almost four-fold increase in patients taking ASA compared to those not taking ASA, regardless of fertility diagnosis or method of fertility treatment.

Conclusion(s):

The use of ASA may be associated with an increased risk of developing a SCH during the first trimester. The increased frequencies of SCH in pregnancies of patients attending a fertility clinic compared to women from a general obstetrical practice was highly correlated with the use of ASA.

Read the full text at: http://www.fertstert.org/article/S0015-0282(16)00044-3/fulltext


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Fertility and Sterility

Editorial Office, American Society for Reproductive Medicine

Fertility and Sterility® is an international journal for obstetricians, gynecologists, reproductive endocrinologists, urologists, basic scientists and others who treat and investigate problems of infertility and human reproductive disorders. The journal publishes juried original scientific articles in clinical and laboratory research relevant to reproductive endocrinology, urology, andrology, physiology, immunology, genetics, contraception, and menopause. Fertility and Sterility® encourages and supports meaningful basic and clinical research, and facilitates and promotes excellence in professional education, in the field of reproductive medicine.

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