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J Hum Reprod Sci. 2019 Jan-Mar;12(1):59-66. doi: 10.4103/jhrs.JHRS_74_18.

Personalized Embryo Transfer Helps in Improving In vitro Fertilization/ICSI Outcomes in Patients with Recurrent Implantation Failure.

Author information

1
Consultant, Nova IVI Fertility, Kankaria, Ahmedabad, Gujarat, India.
2
Third Year Resident Obs & Gynec, Shrimati Bhikhi ben Kanjibhai Shah (SBKS), Medical Institute and Research Center, Vadodara, Gujarat, India.
3
Senior Consultant, Nova IVI Fertility, Navrangpura, Ahmedabad, Gujarat, India.
4
Director, Nova IVI Fertility, Navrangpura, Ahmedabad, Gujarat, India.

Abstract

Aims:

This study aims to compare clinical outcomes in patients of recurrent implantation failure (RIF), who had embryo transfer (ET) following a receptive (R) endometrial receptivity array (ERA) and a personalized embryo transfer (pET) after a nonreceptive (NR) ERA.

Settings and Design:

This was a retrospective observational study.

Study Period:

July 2013-September 2017.

Subjects and Methods:

Two hundred and forty-eight patients having unexplained RIF who underwent ERA test were included in the study. Clinical outcomes were compared between patients having a receptive (R) ERA and those having a NR ERA who underwent a pET-based on ERA.

Statistical Analysis Used:

Chi-square and t-test.

Results:

ERA predicted receptive (R) endometrium at P + 5 in 82.3% (204/248) patients and NR in 17.7% (44/248) patients. Average failed previous in vitro fertilization cycles were 3.67 ± 1.67 among receptive ERA patients and 4.09 ± 1.68 among NR ERA patients. Pregnancy rate (PR), clinical PR, implantation rate (IR), abortion rate (AR), ongoing pregnancy rate (OPR), and cumulative PR were comparable between patients having receptive ERA who had a routine Embryo Transfer (ET) and those with an NR ERA who underwent a pET.

Conclusions:

ERA is helpful in identifying the window of implantation (WOI) through genetic expressions of the endometrium to pinpoint embryo transfer timing. pET guided by ERA in patients of RIF with displaced WOI improves IRs and OPRs.

KEYWORDS:

Endometrial receptivity array; personalized embryo transfer; recurrent implantation failure; window of implantation

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