Preimplantation Genetic Screening

Helping you have a successful pregnancy and a healthy baby by selecting chromosomally normal embryos



It's very important to identify embryos with the correct number 
of chromosomes for successful fertility treatment.


Complete analysis of all 24 chromosomes


12-hour procedure


Results in more than 99% of cases


More than 20 years' experience in genetics

Advanced Reproductive Genetic Services


PGS is a genetic study of the embryo produced during IVF treatment and can help you have a healthy baby. The PGS test:

  • Is performed on the embryo before it is transferred.
  • Allows the identification and transfer of embryos free from aneuploidies to the mother.
  • Significantly increases pregnancy rates per transfer.
  • Reduces the time needed to achieve pregnancy.
Who should use PGS test?

Who should use PGS test?

PGS is especially recommended for:

  • ADVANCED MATERNAL AGE: 35 years and above.
  • RECURRENT MISCARRIAGES: women with two or more miscarriages.
  • IVF failures: two or more IVF failures .
  • MALE FACTOR: considering a low quantity and/or quality of sperm.


  • Reduced miscarriage rates.
  • Higher pregnancy rates per transfer.
  • Fewer cycles of IVF treatment needed (less time and money).
  • Greater chance of having a healthy child.
  • Fewer wasted transfers (implantation failure).
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Optional Single Embryo Transfer (SET)

Optional Single Embryo Transfer (SET)

Multiple pregnancies after an IVF treatment were usual, as clinicians transferred two or more embryos in an attempt to maximize the chances of implantation.

However, multiple pregnancy has increased risks for the mother and the babies:

  • Hypertensive disorders of pregnancy
  • Cord prolapse
  • Malpresentation
  • Premature rupture of membrane
  • Low Apgar scores
  • Cesarean section rate
  • Perinatal death

Twin pregnancy is associated with more pregnancy complications and poorer pregnancy outcome than singleton pregnancy.

The development of the IVF techniques and recent studies demonstrate no statistical difference in pregnancy achieved by Single Embryo Transfer and a reduction in multiple gestations.

More info

Selection of single blastocysts for fresh transfer via standard morphology assessment alone and with array CGH for good prognosis IVF patients: results from a randomized pilot study. Yang Z(1), Liu J, Collins GS, Salem SA, Liu X, Lyle SS, Peck AC, Sills ES, Salem RD. 1. Mol Cytogenet. 2012 May 2;5(1):24.

How it works

How it works

Turn Around Time after receiving the samples in our laboratory:
Fresh cases 24 hours
Frozen cases 7-10 days

Downloads & publications

Scientific publications and documents.

PGS publications

PGS publications



Step by Step Patient

Step by Step Patient

Report Example

Report Example

1: Rubio et al: In vitro fertilization with preimplantation genetic diagnosis for aneuploidies in advanced maternal age: a randomized, controlled study.
Fertil Steril. 2017 May;107(5):1122-1129.

2: Rubio et al: Preimplantation genetic screening using fluorescence in situ hybridization inpatients with repetitive implantation failure and advanced maternal age: two randomized trials.
Fertil Steril. 2013 Apr;99(5):1400-7.

3. Yang Z, Liu J, Collins GS, Salem SA, Liu X, Lyle SS, et al. Selection of single blastocysts for fresh transfer via standard morphology assessment alone and with array CGH for good prognosis IVF patients: results from a randomized pilot study.
Mol Cytogenet 2012 May 2; 5(1):24.

4. Coates A, Kung A, Mounts E, Hesla J, Bankowski B, Barbieri E, Ata B, Cohen J, Munné S. Optimal euploid embryo transfer strategy, fresh versus frozen, after preimplantation genetic screening with next generation sequencing: a randomized controlled trial.
Fertil Steril. 2017 Mar;107(3):723-730.e3.

5. Coates A, Bankowski BJ, Kung A, Griffin DK, Munne S. Differences in pregnancy outcomes in donor egg frozen embryo transfer (FET) cycles following preimplantation genetic screening (PGS): a single center retrospective study.
J Assist Reprod Genet. 2017 Jan;34(1):71-78.


Success stories

“You all helped me to make my dream of being a mother come true"

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