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Journal of Midwifery and Reproductive Health، جلد ۸، شماره ۴، صفحات ۲۴۵۶-۲۴۶۲
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عنوان انگلیسی Comparison of Pregnancy and Neonatal Outcomes in Frozen and Fresh Embryo Transfer in ART Cycles: A Retrospective Cohort Study
چکیده انگلیسی مقاله Background & aim: In addition to the benefits of frozen embryo transfer (FET), the key question is whether freezing or melting embryos can cause fetal harm and prenatal complications. This study aimed to assess pregnancy and neonatal outcomes after FET and fresh embryo transfer (ET). Methods: This retrospective cohort study investigated the pregnancy outcomes of infertile women undergoing intracytoplasmic sperm injection with FET and ET in Kowsar Infertility Center of Motahary hospital in Urmia, Iran between March 2014 and March 2016. A questionnaire was completed based on the hospital records of pregnancy or neonatal outcomes. To assess the continuation of pregnancy and delivery, the questionnaires were completed through phone call. The pregnancy and neonatal outcomes were compared between FET (n=96) and fresh ET (n=93) using Student’s t-test, Chi-square, Fisher’s exact tests and multiple logistic regression using SPSS software (version 21.0). Results: The rate of ongoing pregnancy were reported as 60.2% and 76% in the FET and fresh ET groups, respectively. The rate of multiple pregnancy and ongoing pregnancy were lower in FET, compared to those reported for fresh ET (OR=0.38, 95% CI: 0.18-0.79, P=0.01; OR=0.48, 95% CI: 0.25-0.85, P=0.02). The frequency of spontaneous abortion was not different between two groups (P=0.07). The FET and fresh ET increased the odds of lower neonatal weight; however, it was not statistically significant. Conclusion: In this study, a lower rate of ongoing pregnancy was reported in the FET group. It seems that FET can cause damage to the embryo during freezing and melting. 
کلیدواژه‌های انگلیسی مقاله Assisted Reproductive Technology (ART), Frozen Embryo Transfer (FET), Fresh Embryo Transfer, Pregnancy outcomes, Neonatal Outcomes
نویسندگان مقاله | Mahsomeh Hajishafiha
Professor, Department of Obstetrics and Gynecology, Urmia Reproductive Health Research Center, Urmia, Iran


| Tahere Behrouzi lak
Associate Professor, Department of Obstetrics and Gynecology, Urmia Reproductive Health Research Center, Urmia, Iran


| Vahideh Nobakht
Medical Doctor, Department of Emergency, Valiasr Hospital, Meshkin Shahr, Iran


| Nahid Sadegh Asadi
BSc in Nursing, Department of In Vitro Fertilization, Motahary Hospital, Urmia University of Medical Sciences, Urmia, Iran


| Sima Oshnouei
MSc in Epidemiology, Clinical Research Development Unit of imam Hospital ,Urmia University of Medical Sciences, Urmia ,Iran


| Fedyeh Haghollahi
MSc in Midwifery, Reproductive Health Research Center, Tehran University of Medical Sciences, Tehran, Iran
نشانی اینترنتی https://jmrh.mums.ac.ir/article_16514.html
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نوع مقاله منتشر شده Original Research Article
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