OBJECTIVE: Our objective was to identify the effect on outcome of (a) ultrasound-assisted embryo transfer, (b) the use of different embryo transfer catheters, and (c) the length of time the patients remain in the supine position after embryo transfer. SETTING: The setting was a private fertility center. SUBJECTS: This was a prospective study of 178 in vitro fertilization and embryo transfers (IVF-ET) and 63 frozen embryo replacements (FER). RESULTS: The pregnancy rate was 28.7% following IVF-ET and 31.8% for FER. Ultrasound-assisted transfer did not affect the outcome (29 vs 30.3%). There was no difference in the performance of the Wallace and Frydman catheters with regard to outcome (30.3 vs 30.7%). Although there was an increase in pregnancy rate as the time interval in the supine position after ET increased, this needs a larger study. CONCLUSION: The parameter studies did not affect the outcome of IVF/ET or FER. Some factors encouraged us to recommend ultrasound-assisted transfer in some cases, and the use of a Frydman catheter for transfer and to encourage the supine position after transfer for longer periods.
OBJECTIVE: Our objective was to identify the effect on outcome of (a) ultrasound-assisted embryo transfer, (b) the use of different embryo transfer catheters, and (c) the length of time the patients remain in the supine position after embryo transfer. SETTING: The setting was a private fertility center. SUBJECTS: This was a prospective study of 178 in vitro fertilization and embryo transfers (IVF-ET) and 63 frozen embryo replacements (FER). RESULTS: The pregnancy rate was 28.7% following IVF-ET and 31.8% for FER. Ultrasound-assisted transfer did not affect the outcome (29 vs 30.3%). There was no difference in the performance of the Wallace and Frydman catheters with regard to outcome (30.3 vs 30.7%). Although there was an increase in pregnancy rate as the time interval in the supine position after ET increased, this needs a larger study. CONCLUSION: The parameter studies did not affect the outcome of IVF/ET or FER. Some factors encouraged us to recommend ultrasound-assisted transfer in some cases, and the use of a Frydman catheter for transfer and to encourage the supine position after transfer for longer periods.
Authors: T al-Shawaf; A Nolan; P Nadkarni; J Harper; J Brown; R Guirgis; G Emerson; M Bayly; I Craft Journal: J In Vitro Fert Embryo Transf Date: 1991-08
Authors: Anice Maria Vieira de Camargo Martins; Ricardo L R Baruffi; Ana L Mauri; Claudia Petersen; João Batista Alcantara Oliveira; Paula Contart; Anagloria Pontes; José G Franco Journal: J Assist Reprod Genet Date: 2004-12 Impact factor: 3.412
Authors: G De Placido; M Wilding; I Stina; A Mollo; E Alviggi; A Tolino; N Colacurci; Matteo L De; M Marino; B Dale Journal: J Assist Reprod Genet Date: 2002-01 Impact factor: 3.412