Document Detail

Atosiban improves implantation and pregnancy rates in patients with repeated implantation failure.
MedLine Citation:
PMID:  22818095     Owner:  NLM     Status:  Publisher    
This prospective cohort study examined the effects of atosiban on uterine contraction, implantation rate (IR) and clinical pregnancy rate (CPR) in women undergoing IVF/embryo transfer. The study enrolled 71 women with repeated implantation failure (RIF; no pregnancies from an average of 4.8 previous embryo transfers with a mean of 12 top-quality embryos) undergoing IVF/embryo transfer using cryopreserved embryos. The total atosiban dose was 36.75mg. The IR per transfer and CPR per cycle were 13.9% and 43.7%, respectively. Before atosiban, 14% of subjects had a high frequency of uterine contractions (⩾16 in 4min). The frequency of uterine contractions was reduced after atosiban. This reduction of uterine contractions in all cycles was significant overall (from 6.0 to 2.6/4min; P<0.01), in cycles with ⩾16 uterine contractions/4min at baseline (from 18.8 to 5.1; P<0.01) and in cycles with <16 uterine contractions/4min (from 3.9 to 2.2; P<0.01). IR and CPR improved in all subjects, irrespective of baseline uterine contraction frequency. This is the first prospective study showing that atosiban may benefit subjects with RIF undergoing IVF/embryo transfer with cryopreserved embryos. One potential mechanism is the reduction in uterine contractility, but others may also contribute. Many women undergoing IVF/embryo transfer do not achieve the outcome that they wish for. In fact, IVF/embryo transfer repeatedly fails for a subgroup of patients. There are limited options available to help these patients with repeat implantation failure (RIF) to become pregnant. This study looks at one potential new treatment option for women who experience RIF. A drug called atosiban is already being used to delay premature labour by inhibiting contractions of the uterus. In this study, atosiban was given at the time of embryo transfer to women undergoing IVF/embryo transfer. Atosiban reduced the number of uterine contractions in these patients and also increased the implantation and pregnancy rates. The pregnancy rate went from zero to 43.7%. The beneficial effects of atosiban were observed not only in patients who had a high frequency of uterine contractions at baseline but also in those who had a low frequency. These findings suggest that atosiban may have other benefits in addition to its effect on contractions of the uterus. More studies are required to find out exactly how atosiban works and to increase the knowledge of its use in patients with RIF undergoing IVF/embryo transfer.
Vuong Thi Ngoc Lan; Vu Nhat Khang; Giang Huynh Nhu; Ho Manh Tuong
Related Documents :
24047475 - The impact of change in pregnancy body mass index on cesarean delivery.
18401835 - White adipose tissue production and release of il-6 and tnf-alpha do not parallel circu...
22433335 - Uterine rupture with attempted vaginal birth after cesarean delivery: decision-to-deliv...
9347405 - Changes in fat-free mass and fat mass in postpartum women: a comparison of body composi...
15125405 - Prenatal testing and pregnancy termination in sri lanka: views of medical students and ...
24714555 - Added value of angiogenic factors for the prediction of early and late preeclampsia in ...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-6-16
Journal Detail:
Title:  Reproductive biomedicine online     Volume:  -     ISSN:  1472-6491     ISO Abbreviation:  -     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-7-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101122473     Medline TA:  Reprod Biomed Online     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.
Department of OB/GYN, University of Medicine and Pharmacy of Ho Chi Minh City, Ho Chi Minh City, 217 Hong Bang Street, District 5, Ho Chi Minh City, Vietnam.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

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

Previous Document:  Office hysteroscopy improves pregnancy rates following IVF.
Next Document:  Serum HCG measured in the peri-implantation period predicts IVF cycle outcomes.