Coasting, embryo development and outcomes of blastocyst transfer: a case–control study

Abstract This study compared the effect on blastocyst development and clinical outcome of coasting in women at increased risk of moderate–severe ovarian hyperstimulation syndrome (OHSS; n  = 389) with a control group matched for age and basal FSH that did not undergo coasting ( n  = 386) in IVF/intr...

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Veröffentlicht in:Reproductive biomedicine online 2014-08, Vol.29 (2), p.231-238
Hauptverfasser: Talebi Chahvar, Solmas, Zosmer, Ariel, Caragia, Alina, Balestrini, Simona, Sabatini, Luca, Tranquilli, Andrea Luigi, Al-Shawaf, Talha
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container_end_page 238
container_issue 2
container_start_page 231
container_title Reproductive biomedicine online
container_volume 29
creator Talebi Chahvar, Solmas
Zosmer, Ariel
Caragia, Alina
Balestrini, Simona
Sabatini, Luca
Tranquilli, Andrea Luigi
Al-Shawaf, Talha
description Abstract This study compared the effect on blastocyst development and clinical outcome of coasting in women at increased risk of moderate–severe ovarian hyperstimulation syndrome (OHSS; n  = 389) with a control group matched for age and basal FSH that did not undergo coasting ( n  = 386) in IVF/intracytoplasmic sperm injection (ICSI) cycles. The main outcome measures were rate of blastocyst development and live birth. More cycles progressed to the blastocyst stage in the coasted group ( n  = 169) compared with the control group ( n  = 83; 43.4% versus 21.5%; P  
doi_str_mv 10.1016/j.rbmo.2014.04.014
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The main outcome measures were rate of blastocyst development and live birth. More cycles progressed to the blastocyst stage in the coasted group ( n  = 169) compared with the control group ( n  = 83; 43.4% versus 21.5%; P  &lt; 0.001). The biochemical pregnancy, clinical pregnancy and live birth rates were similar (46.5% versus 42.0%; 40.6% versus 37.8%; 31.6% versus 30.1%). The duration of coasting up to 4 days did not affect progression to blastocyst stage. The multivariate model showed that coasting (OR 1.73, P  = 0.004) and the number of oocytes retrieved (OR 1.17, P  = 0.001) were positively correlated with blastocyst formation. Coasting, a measure to reduce the risk of OHSS, does not impair blastocyst development or clinical outcome. Coasting should remain an effective measure to prevent OHSS.</description><identifier>ISSN: 1472-6483</identifier><identifier>EISSN: 1472-6491</identifier><identifier>DOI: 10.1016/j.rbmo.2014.04.014</identifier><identifier>PMID: 24912420</identifier><language>eng</language><publisher>Netherlands: Elsevier Ltd</publisher><subject>Adult ; Blastocyst ; blastocysts ; Case-Control Studies ; coasting ; Embryo Transfer ; Female ; Follicle Stimulating Hormone - blood ; Humans ; IVF ; live birth ; Obstetrics and Gynecology ; OHSS ; Ovarian Hyperstimulation Syndrome - physiopathology ; Pregnancy ; Retrospective Studies</subject><ispartof>Reproductive biomedicine online, 2014-08, Vol.29 (2), p.231-238</ispartof><rights>Reproductive Healthcare Ltd.</rights><rights>2014 Reproductive Healthcare Ltd.</rights><rights>Copyright © 2014 Reproductive Healthcare Ltd. Published by Elsevier Ltd. 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source MEDLINE; ScienceDirect Journals (5 years ago - present)
subjects Adult
Blastocyst
blastocysts
Case-Control Studies
coasting
Embryo Transfer
Female
Follicle Stimulating Hormone - blood
Humans
IVF
live birth
Obstetrics and Gynecology
OHSS
Ovarian Hyperstimulation Syndrome - physiopathology
Pregnancy
Retrospective Studies
title Coasting, embryo development and outcomes of blastocyst transfer: a case–control study
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