title: Firm versus soft embryo transfer catheters under ultrasound guidance: does catheter choice really influence the pregnancy rates?
abstract: In contrast to the previously published evidence, under ultrasound guidance, individual catheter choice does not statistically significantly affect the clinical pregnancy rate in a modern clinical IVF practice. This may be as a result of decreasing the incidence of difficult transfers and endometrial injury with ET under ultrasound guidance.
authors.affiliation: The International Egyptian IVF Center, Cairo, Egypt; Department of Obstetrics and Gynaecology, Faculty of Medicine, Cairo University, Cairo, Egypt.
authors.forename: Ismail
authors.initials: I
authors.lastname: Aboulfotouh
authors.affiliation: Private clinic, Giza, Egypt. Electronic address: abousetta_md@hotmail.com.
authors.forename: Ahmed M
authors.initials: AM
authors.lastname: Abou-Setta
authors.affiliation: The International Egyptian IVF Center, Cairo, Egypt; Department of Obstetrics and Gynaecology, Faculty of Medicine, Cairo University, Cairo, Egypt.
authors.forename: Sherif
authors.initials: S
authors.lastname: Khattab
authors.affiliation: The International Egyptian IVF Center, Cairo, Egypt; Department of Obstetrics and Gynaecology, Faculty of Medicine, Cairo University, Cairo, Egypt.
authors.forename: Iman Abdel
authors.initials: IA
authors.lastname: Mohsen
authors.affiliation: Department of Obstetrics and Gynaecology, Faculty of Medicine, Cairo University, Cairo, Egypt.
authors.forename: Ahmed
authors.initials: A
authors.lastname: Askalani
authors.affiliation: The International Egyptian IVF Center, Cairo, Egypt.
authors.forename: Rasha E
authors.initials: RE
authors.lastname: El-Din
mesh_terms: D000328:Adult; D002404:Catheterization; D010064:Embryo Implantation; D004624:Embryo Transfer / Q000295:instrumentation* / Q000379:methods*; D004717:Endometrium / Q000000981:diagnostic imaging; D005260:Female; D005307:Fertilization in Vitro / Q000295:instrumentation / Q000379:methods; D006801:Humans; D011247:Pregnancy; D018873:Pregnancy Rate; D012189:Retrospective Studies; D014463:Ultrasonography