Document Detail

Transfer of embryos into the uterus: how much do technical factors affect pregnancy rates?
MedLine Citation:
PMID:  8499676     Owner:  NLM     Status:  MEDLINE    
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.
T al-Shawaf; R Dave; J Harper; D Linehan; P Riley; I Craft
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of assisted reproduction and genetics     Volume:  10     ISSN:  1058-0468     ISO Abbreviation:  J. Assist. Reprod. Genet.     Publication Date:  1993 Jan 
Date Detail:
Created Date:  1993-06-29     Completed Date:  1993-06-29     Revised Date:  2008-03-18    
Medline Journal Info:
Nlm Unique ID:  9206495     Medline TA:  J Assist Reprod Genet     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  31-6     Citation Subset:  IM    
London Fertility & Gynaecology Centre, England.
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MeSH Terms
Abdomen / ultrasonography
Catheterization / instrumentation
Embryo Transfer / methods*
Fertilization in Vitro*
Prospective Studies
Supine Position
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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