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In IVF treatment, embryo quality is one of the most critical factors influencing the chance of pregnancy. High-quality oocytes form the basis of embryo development, and even a single good-quality oocyte can be sufficient for pregnancy.
The primary factors affecting oocyte quality include:
* Female age
* Smoking
* FSH levels
* Dose of hormones used in ovarian stimulation
* Timely and appropriate execution of the egg retrieval procedure
* Genetic disorders
Other significant factors directly impacting embryo quality are: selection of quality sperm, advanced sperm selection techniques, the embryologist's experience during the fertilization process (ICSI), laboratory technology, and the use of high technology.
Embryos are generally assessed based on morphological criteria such as cell number, shape, and equality of cell sizes. To increase the success rate of IVF treatment, a Day 5 embryo (blastocyst) transfer is usually preferred. This is because blastocysts that have reached Day 5 statistically have a higher chance of implantation in the uterus compared to Day 3 embryos.
Continuous embryo monitoring systems like Embryoscope and genetic analysis methods such as NGS (Next-Generation Sequencing) are modern techniques that assist in selecting high-quality embryos and increasing success rates.
While the risk of genetic abnormalities is low in embryos with good morphology, it is not entirely absent. Therefore, for couples experiencing recurrent implantation failures despite the transfer of good-quality embryos, genetic analysis of the embryo (PGT-A/NGS) before transfer should be considered a method to improve success.
Furthermore, the health of the uterus and fallopian tubes is crucial for treatment success. Laparoscopic removal of blocked or hydrosalpinx-affected (fluid accumulation) fallopian tubes, or severing their connection to the uterus, can increase the chance of pregnancy. Removing adhesions, fibroids, or polyps detected in a hysteroscopy before embryo transfer will positively affect treatment outcomes. Similarly, hysteroscopic removal of intrauterine polyps that become prominent during ovarian stimulation also increases pregnancy rates.
What factors affect embryo quality?
The primary factors affecting oocyte quality include:
* Female age
* Smoking
* FSH levels
* Dose of hormones used in ovarian stimulation
* Timely and appropriate execution of the egg retrieval procedure
* Genetic disorders
Other significant factors directly impacting embryo quality are: selection of quality sperm, advanced sperm selection techniques, the embryologist's experience during the fertilization process (ICSI), laboratory technology, and the use of high technology.
Embryos are generally assessed based on morphological criteria such as cell number, shape, and equality of cell sizes. To increase the success rate of IVF treatment, a Day 5 embryo (blastocyst) transfer is usually preferred. This is because blastocysts that have reached Day 5 statistically have a higher chance of implantation in the uterus compared to Day 3 embryos.
Continuous embryo monitoring systems like Embryoscope and genetic analysis methods such as NGS (Next-Generation Sequencing) are modern techniques that assist in selecting high-quality embryos and increasing success rates.
While the risk of genetic abnormalities is low in embryos with good morphology, it is not entirely absent. Therefore, for couples experiencing recurrent implantation failures despite the transfer of good-quality embryos, genetic analysis of the embryo (PGT-A/NGS) before transfer should be considered a method to improve success.
Furthermore, the health of the uterus and fallopian tubes is crucial for treatment success. Laparoscopic removal of blocked or hydrosalpinx-affected (fluid accumulation) fallopian tubes, or severing their connection to the uterus, can increase the chance of pregnancy. Removing adhesions, fibroids, or polyps detected in a hysteroscopy before embryo transfer will positively affect treatment outcomes. Similarly, hysteroscopic removal of intrauterine polyps that become prominent during ovarian stimulation also increases pregnancy rates.