Sunny H Jun1, Amin A Milki. 1. Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, California 94304, USA.
Abstract
OBJECTIVE: To compare the rate of ectopic pregnancy (EP) with fresh versus frozen blastocyst transfer in our program during the same time period. DESIGN: Retrospective analysis. SETTING: University IVF program. PATIENT(S): Women who achieved a clinical pregnancy after IVF between 1998 and 2005. INTERVENTION(S): In our program, cryopreservation is performed at the blastocyst stage. Embryo transfer was performed 1 to 1.5 cm short of the fundus by abdominal ultrasound guidance. MAIN OUTCOME MEASURE(S): The incidence of EP was examined in relation to fresh versus frozen blastocyst transfer. RESULT(S): In the frozen blastocyst group, there were 5 EPs out of 180 clinical pregnancies (2.8%), and there were 10 EPs out of 564 clinical pregnancies (1.8%) in the fresh blastocyst group. CONCLUSION(S): The rate of EP is not significantly increased after the transfer of frozen thawed blastocysts compared with fresh blastocyst transfer.
OBJECTIVE: To compare the rate of ectopic pregnancy (EP) with fresh versus frozen blastocyst transfer in our program during the same time period. DESIGN: Retrospective analysis. SETTING: University IVF program. PATIENT(S): Women who achieved a clinical pregnancy after IVF between 1998 and 2005. INTERVENTION(S): In our program, cryopreservation is performed at the blastocyst stage. Embryo transfer was performed 1 to 1.5 cm short of the fundus by abdominal ultrasound guidance. MAIN OUTCOME MEASURE(S): The incidence of EP was examined in relation to fresh versus frozen blastocyst transfer. RESULT(S): In the frozen blastocyst group, there were 5 EPs out of 180 clinical pregnancies (2.8%), and there were 10 EPs out of 564 clinical pregnancies (1.8%) in the fresh blastocyst group. CONCLUSION(S): The rate of EP is not significantly increased after the transfer of frozen thawed blastocysts compared with fresh blastocyst transfer.
Authors: Ali Aflatoonian; Mohammad Ali Karimzadeh Maybodi; Nastaran Aflatoonian; Nasim Tabibnejad; Mohammad Hossein Amir-Arjmand; Mehrdad Soleimani; Behrouz Aflatoonian; Abbas Aflatoonian Journal: Int J Reprod Biomed Date: 2016-03