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Preimplantation Genetic Testing for Aneuploidy | PGTA Testing

PGTA testing helps in screening the embryos for genetic abnormalities by identifying chromosomal abnormalities or specific inherited disorders. If you are struggling with unplanned miscarriages, IVF failures, and have parents or siblings with hereditary conditions, consult the experts at Pristyn Care.

PGTA testing helps in screening the embryos for genetic abnormalities by identifying chromosomal ... Read More

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Preimplantation Genetic Testing

Preimplantation genetic testing is one of the most advanced methods for detecting genetic defects in embryos produced through in vitro fertilization (IUI or ICSI). This process entails taking a small number of cells from an embryo’s trophectoderm, or outer layer, in order to examine them for chromosomal abnormalities or to determine the prevalence of a specific genetic mutation linked to a number of diseases. The purpose of PGT is to enable your doctor to choose embryos for transfer that are anticipated to be free of chromosome abnormalities or a particular genetic issue. Before becoming pregnant, this test gives patients the ability to lower their child’s risk of inheriting a genetic condition.

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Types of PGTA Testing

There are three different kinds of PGTA testing. Each type searches for distinct kinds of genetic structural alterations in an embryo:

  • PGT-A, or aneuploidy:  missing or extra chromosomes
  • PGT-M, or Monogenic: specific alterations in individual genes
  • PGT-SR(structural rearrangements): Changes to the chromosomes’ structure

The choice to decide upon the PGTA testing is influenced by your family or personal history of health conditions. For instance, you might choose PGT-M if you are aware that you or your biological partner are carrier for a single-gene disorder like cystic fibrosis. Consult your physician and/or genetic counsellor about your objectives and concerns before selecting PGT and the particular types you wish to have done.

What is Preimplantation Genetic Diagnosis?

Pre-implantation genetic diagnosis is the traditional name for pre-implantation genetic testing. It is a laboratory technique used in conjunction with In vitro fertilization (IVF) to lower the chance of transferring hereditary disorders. Some of the most common reasons for undergoing the PGD are structural chromosome abnormalities in one or both parents and some single-gene disorders (including sickle cell anemia, cystic fibrosis, and polycystic kidney disease).

PGTA vs PGTM

Features PGTA PGTM
Purpose Diagnosing missing or an extra number of chromosomes Screening for inherited single-gene disorders
Recommended For Older women, or IVF failures  Couple with a family history of genetic diseases
Detects  Aneuploidy Single gene disorders
Additional Testing  Not required  Required 

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Who Needs to Take PGT-A Testing?

Also known as IVF genetic testing, it is not a mandatory test for patients undergoing IVF.

  • This test is recommended for those who are choosing IVF after numerous rounds of infertility therapy
  • Someone who frequently experiences unplanned miscarriages
  • Someone who may have parents or siblings with hereditary illnesses
  • An individual who is above 35 and undergoing IVF
  • An individual who has already experienced chromosomal abnormalities during pregnancy

Talk to your fertility specialist about your health history and find out if you need preimplantation genetic testing for IVF.

Advantages of PGT

  • Decreased risk of genetic disorders: PGT lowers the chance of inheriting illnesses by identifying embryos with genetic defects.

  • Higher IVF success rates: PGT increases the likelihood of a successful pregnancy and lowers the risk of miscarriage by transferring only genetically viable embryos.

  • Increased IVF success rate: By transferring only genetically viable embryos, PGT can lessen the chance of miscarriage and enhance the possibility of a successful pregnancy.

  • Decreased risk of multiple pregnancies: The probability of twins or triplets is decreased since only the best-quality embryos are chosen, requiring fewer transfers.

  • Comfort: Couples who have a family history of genetic illnesses can now relax knowing that their embryos have been examined for possible problems prior to implantation. 

Factors Affecting PGTA Testing Cost

PGT-A test costs may vary greatly from patient to patient. The number of embryos to test, the frequency of IVF cycles required (egg extraction, fertilization, testing, and embryo transfer), the pattern of inheritance of the genetic condition, and the equipment needed for PGT-A testing affect the treatment cost.  Additionally, the overall package becomes more expensive if further tests are needed or if testing multiple family members is necessary to obtain a meaningful result. The cost of preimplantation genetic testing varies according to your age and the number of embryos you have.

PGTA Genetic Testing Process

PGT test IVF is performed through the following steps

  • Ovarian Stimulation
  • Egg Retrieval 
  • Sperm Injection
  • Fertility Assessment
  • Embryo Biopsy
  • Embryo Testing
  • Embryo Transfer

Frequently Asked Questions

How much does embryo genetic testing cost in India?

The embryo genetic testing cost varies depending on several factors, including the type of PgtA testing, lab and technology used, location of clinic(Delhi, Mumbai), skills and expertise of the doctor, etc. Consult our experts for an individualized cost plan.

How is IVF genetic screening done?

Genetic screening in IVF works through a process of testing the embryos created through the IVF procedure against chromosomal abnormalities or particular genetic mutations.

What is the success rate of PGTA IVF?

PGTA identifies the chromosomal abnormality and helps in transferring only the genetically normal embryos. The testing reduces the risk of miscarriages and the chance of inheriting illnesses, eventually increasing the chances of pregnancy.