The interval transfer of a frozen‐thawed embryo is more successful than a fresh embryo transfer for women undergoing IVF with recurrent implantation failure after cleavage stage embryo biopsy

Jennifer Pontre, John P. Ryan, Andy Tan, Roger Hart

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2 Citations (Scopus)

Abstract

Background: Recurrent implantation failure (RIF) is repeated unsuccessful embryo transfers (ETs). Aims: To identify predictive embryonic markers of implantation in RIF, following pre-implantation genetic screening (PGS) of cleavage stage embryos, after accounting for male and female factors. Materials and Methods: Retrospective analysis of RIF patients undergoing PGS after correction of modifiable causes. Results: Eighty-four patients underwent 140 in vitro ferilisation cycles. Forty-one cycles were excluded: 12 (no embryo for transfer), four (double ETs) and 25 (no biopsy). Sixty-three patients underwent 99 single euploid ETs (48 fresh, 51 frozen) resulting in 11 biochemical pregnancies, 36 clinical pregnancies (CP), and six miscarriages and 30 live births (LB). Frozen ET was more successful than fresh; respective live birth rate (LBR) and clinical pregnancy rate (CPR), 39.2% versus 20.8%, (P = 0.02), 45.1% versus 27.1% (P = 0.04). LBR and CPR were lower when 5–6 blastomeres were present at embryo biopsy, compared to embryos with ≥7 blastomeres: 15.4% versus 32.6% (P = 0.185) and 15.4% versus 39.5% (P = 0.074) respectively. Serum β human chorionic gonadotropin (βhCG) concentration was greater when a more developed embryo was biopsied (r = 0.448, P = 0.017 and r = 0.476, P = 0.118, fresh and frozen transfers, respectively). Embryo morphokinetic analysis demonstrated faster development to blastocyst stage when more cells were present at biopsy: mean 103.3, 102.2 and 96.0 h for biopsy at the 5–6, 7–8 or ≥9 cell stage respectively (P = 0.040 for difference between 7–8 cells vs ≥9). Conclusions: After cleavage stage biopsy, frozen ET was more successful than fresh ET. Chance of conception and serum βhCG concentration correlated with number of cells present at time of biopsy. © 2018 The Royal Australian and New Zealand College of Obstetricians and Gynaecologists
Original languageEnglish
Pages (from-to)134-139
JournalAustralian and New Zealand Journal of Obstetrics and Gynecology
Volume59
Issue number1
DOIs
Publication statusPublished - Feb 2019

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Embryo Transfer
Embryonic Structures
Biopsy
Live Birth
Blastomeres
Birth Rate
Genetic Testing
Chorionic Gonadotropin
Pregnancy Rate
Single Embryo Transfer
Pregnancy
Blastocyst
Spontaneous Abortion
Serum
New Zealand
Cell Count

Cite this

@article{23b8752c9874434ea93c91ba5d5518b9,
title = "The interval transfer of a frozen‐thawed embryo is more successful than a fresh embryo transfer for women undergoing IVF with recurrent implantation failure after cleavage stage embryo biopsy",
abstract = "Background: Recurrent implantation failure (RIF) is repeated unsuccessful embryo transfers (ETs). Aims: To identify predictive embryonic markers of implantation in RIF, following pre-implantation genetic screening (PGS) of cleavage stage embryos, after accounting for male and female factors. Materials and Methods: Retrospective analysis of RIF patients undergoing PGS after correction of modifiable causes. Results: Eighty-four patients underwent 140 in vitro ferilisation cycles. Forty-one cycles were excluded: 12 (no embryo for transfer), four (double ETs) and 25 (no biopsy). Sixty-three patients underwent 99 single euploid ETs (48 fresh, 51 frozen) resulting in 11 biochemical pregnancies, 36 clinical pregnancies (CP), and six miscarriages and 30 live births (LB). Frozen ET was more successful than fresh; respective live birth rate (LBR) and clinical pregnancy rate (CPR), 39.2{\%} versus 20.8{\%}, (P = 0.02), 45.1{\%} versus 27.1{\%} (P = 0.04). LBR and CPR were lower when 5–6 blastomeres were present at embryo biopsy, compared to embryos with ≥7 blastomeres: 15.4{\%} versus 32.6{\%} (P = 0.185) and 15.4{\%} versus 39.5{\%} (P = 0.074) respectively. Serum β human chorionic gonadotropin (βhCG) concentration was greater when a more developed embryo was biopsied (r = 0.448, P = 0.017 and r = 0.476, P = 0.118, fresh and frozen transfers, respectively). Embryo morphokinetic analysis demonstrated faster development to blastocyst stage when more cells were present at biopsy: mean 103.3, 102.2 and 96.0 h for biopsy at the 5–6, 7–8 or ≥9 cell stage respectively (P = 0.040 for difference between 7–8 cells vs ≥9). Conclusions: After cleavage stage biopsy, frozen ET was more successful than fresh ET. Chance of conception and serum βhCG concentration correlated with number of cells present at time of biopsy. {\circledC} 2018 The Royal Australian and New Zealand College of Obstetricians and Gynaecologists",
author = "Jennifer Pontre and Ryan, {John P.} and Andy Tan and Roger Hart",
year = "2019",
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doi = "10.1111/ajo.12798",
language = "English",
volume = "59",
pages = "134--139",
journal = "The Australian and New Zealand Journal of Obstetrics and Gynaecology",
issn = "0004-8666",
publisher = "John Wiley & Sons, Ltd (10.1111)",
number = "1",

}

TY - JOUR

T1 - The interval transfer of a frozen‐thawed embryo is more successful than a fresh embryo transfer for women undergoing IVF with recurrent implantation failure after cleavage stage embryo biopsy

AU - Pontre, Jennifer

AU - Ryan, John P.

AU - Tan, Andy

AU - Hart, Roger

PY - 2019/2

Y1 - 2019/2

N2 - Background: Recurrent implantation failure (RIF) is repeated unsuccessful embryo transfers (ETs). Aims: To identify predictive embryonic markers of implantation in RIF, following pre-implantation genetic screening (PGS) of cleavage stage embryos, after accounting for male and female factors. Materials and Methods: Retrospective analysis of RIF patients undergoing PGS after correction of modifiable causes. Results: Eighty-four patients underwent 140 in vitro ferilisation cycles. Forty-one cycles were excluded: 12 (no embryo for transfer), four (double ETs) and 25 (no biopsy). Sixty-three patients underwent 99 single euploid ETs (48 fresh, 51 frozen) resulting in 11 biochemical pregnancies, 36 clinical pregnancies (CP), and six miscarriages and 30 live births (LB). Frozen ET was more successful than fresh; respective live birth rate (LBR) and clinical pregnancy rate (CPR), 39.2% versus 20.8%, (P = 0.02), 45.1% versus 27.1% (P = 0.04). LBR and CPR were lower when 5–6 blastomeres were present at embryo biopsy, compared to embryos with ≥7 blastomeres: 15.4% versus 32.6% (P = 0.185) and 15.4% versus 39.5% (P = 0.074) respectively. Serum β human chorionic gonadotropin (βhCG) concentration was greater when a more developed embryo was biopsied (r = 0.448, P = 0.017 and r = 0.476, P = 0.118, fresh and frozen transfers, respectively). Embryo morphokinetic analysis demonstrated faster development to blastocyst stage when more cells were present at biopsy: mean 103.3, 102.2 and 96.0 h for biopsy at the 5–6, 7–8 or ≥9 cell stage respectively (P = 0.040 for difference between 7–8 cells vs ≥9). Conclusions: After cleavage stage biopsy, frozen ET was more successful than fresh ET. Chance of conception and serum βhCG concentration correlated with number of cells present at time of biopsy. © 2018 The Royal Australian and New Zealand College of Obstetricians and Gynaecologists

AB - Background: Recurrent implantation failure (RIF) is repeated unsuccessful embryo transfers (ETs). Aims: To identify predictive embryonic markers of implantation in RIF, following pre-implantation genetic screening (PGS) of cleavage stage embryos, after accounting for male and female factors. Materials and Methods: Retrospective analysis of RIF patients undergoing PGS after correction of modifiable causes. Results: Eighty-four patients underwent 140 in vitro ferilisation cycles. Forty-one cycles were excluded: 12 (no embryo for transfer), four (double ETs) and 25 (no biopsy). Sixty-three patients underwent 99 single euploid ETs (48 fresh, 51 frozen) resulting in 11 biochemical pregnancies, 36 clinical pregnancies (CP), and six miscarriages and 30 live births (LB). Frozen ET was more successful than fresh; respective live birth rate (LBR) and clinical pregnancy rate (CPR), 39.2% versus 20.8%, (P = 0.02), 45.1% versus 27.1% (P = 0.04). LBR and CPR were lower when 5–6 blastomeres were present at embryo biopsy, compared to embryos with ≥7 blastomeres: 15.4% versus 32.6% (P = 0.185) and 15.4% versus 39.5% (P = 0.074) respectively. Serum β human chorionic gonadotropin (βhCG) concentration was greater when a more developed embryo was biopsied (r = 0.448, P = 0.017 and r = 0.476, P = 0.118, fresh and frozen transfers, respectively). Embryo morphokinetic analysis demonstrated faster development to blastocyst stage when more cells were present at biopsy: mean 103.3, 102.2 and 96.0 h for biopsy at the 5–6, 7–8 or ≥9 cell stage respectively (P = 0.040 for difference between 7–8 cells vs ≥9). Conclusions: After cleavage stage biopsy, frozen ET was more successful than fresh ET. Chance of conception and serum βhCG concentration correlated with number of cells present at time of biopsy. © 2018 The Royal Australian and New Zealand College of Obstetricians and Gynaecologists

U2 - 10.1111/ajo.12798

DO - 10.1111/ajo.12798

M3 - Article

VL - 59

SP - 134

EP - 139

JO - The Australian and New Zealand Journal of Obstetrics and Gynaecology

JF - The Australian and New Zealand Journal of Obstetrics and Gynaecology

SN - 0004-8666

IS - 1

ER -