{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T00:44:21Z","timestamp":1787013861312,"version":"build-2736575974"},"reference-count":36,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2023,6,28]],"date-time":"2023-06-28T00:00:00Z","timestamp":1687910400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[2023,8]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Miscarriage is a major concern in early pregnancy among women having conceived with assisted reproductive treatments. This study aimed to examine potential miscarriage\u2010related biophysical and biochemical markers at 6\u2009weeks' gestation among women with confirmed clinical pregnancy following in vitro fertilization (IVF)\/embryo transfer (ET) and evaluate the performance of a model combining maternal factors, biophysical and biochemical markers at 6\u2009weeks' gestation in the prediction of first trimester miscarriage among singleton pregnancies following IVF\/ET.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and methods<\/jats:title>\n                    <jats:p>A prospective cohort study was conducted in a teaching hospital between December 2017 and January 2020 including women who conceived through IVF\/ET. Maternal mean arterial pressure, ultrasound markers including mean gestational sac diameter, fetal heart activity, crown rump length and mean uterine artery pulsatility index (mUTPI) and biochemical biomarkers including maternal serum soluble fms\u2010like tyrosine kinase\u20101 (sFlt\u20101), placental growth factor (PlGF), kisspeptin and glycodelin\u2010A were measured at 6\u2009weeks' gestation. Logistic regression analysis was carried out to determine significant predictors of miscarriage prior to 13\u2009weeks' gestation and performance of screening was estimated by receiver\u2010operating characteristics curve analysis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Among 169 included pregnancies, 145 (85.8%) pregnancies progressed to beyond 13\u2009weeks' gestation and had live births whereas 24 (14.2%) pregnancies resulted in a miscarriage during the first trimester. In the miscarriage group, compared to the live birth group, maternal age, body mass index, and mean arterial pressure were significantly increased; mean gestational sac diameter, crown rump length, mUTPI, serum sFlt\u20101, glycodelin\u2010A, and the rate of positive fetal heart activity were significantly decreased, while no significant differences were detected in PlGF and kisspeptin. Significant prediction for miscarriage before 13\u2009weeks' gestation was provided by maternal age, fetal heart activity, mUTPI, and serum glycodelin\u2010A. The combination of maternal age, ultrasound (fetal heart activity and mUTPI), and biochemical (glycodelin\u2010A) markers achieved the highest area under the curve (AUC: 0.918, 95% CI 0.866\u20130.955), with estimated detection rates of 54.2% and 70.8% for miscarriage before 13\u2009weeks' gestation, at fixed false positive rates of 5% and 10%, respectively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>A combination of maternal age, fetal heart activity, mUTPI, and serum glycodelin\u2010A at 6\u2009weeks' gestation could effectively identify IVF\/ET pregnancies at risk of first trimester miscarriage.<\/jats:p>\n                  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