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Home  > Clinical services  >  Preimplantation Genetic Screening  > Introduction

1. About the product

Annoroad’s Preimplantation Genetic Screening (PGS) refers to the screening of embryos during development of IVF (in vitro fertilization) embryos. The implantation of embryos without abnormal chromosome number or micro-deletion/micro-duplication helps effectively improve the rate of pregnancy with test-tube baby, lower risks of abortion, and prevent birth defects.


2. Background

2.1 Status of infertility and birth defect inChina

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 2.2 Occurrence rate of chromosome abnormality in relevant diseases

----Chromosome abnormality occupies a fairly large proportion in cases of infertility and birth defect

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2.3 Deficiency of traditional test-tube baby technique

1) Both the implantation success rate and pregnancy rate are low for traditional test-tube babies;

2) There are high incidence of chromosome abnormality and high miscarriage rate for embryos of in vitro development.


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