S13.6 <i>(Oral Abstract Presentation)</i> : Anti‐thyroid autoantibodies may cause embryo demise: Experimental and clinical study on Recurrent Implantation Failure (RIF) patients

P-195: The Relationship between PAI-1 Polymorphism with Recurrent Implantation Failure (RIF)

Background: RIF is the most common cause of unsuccessful pregnancy after IVF. Among the various causes of RIF, the role of maternal genetic factors is of great significance. PAI-1 polymorphism is one of the notable polymorphisms in this field. In this study, the relationship between this polymorphism and the recurrent spontaneous abortions and infertility in different populations has been inves...

I-24: Recurrent Implantation Failure

Recurrent implantation failure (RIF) has many definitions, but usually authors consider RIF, the failure to achieve a pregnancy fallowing 2-6 IVF cycles in which more than 10 high grade embryos were transferred to the uterus. There are a lot of causes for RIF but two main causes of that are related to embryo and endometrium. Chromosomal abnormalities, zona hardening and problems in culture medi...

Reduced plasma fibrinolytic potential in patients with recurrent implantation failure after IVF and embryo transfer.

BACKGROUND Recurrent implantation failure (RIF) following embryo transfer (ET) is a major continuing problem in IVF. Women with haemostatic defects may be at increased risk of miscarriage and preclinical pregnancy loss. The fibrinolytic system is considered, at present, the key to new thrombotic pathogenic mechanisms. Patients with unexplained recurrent miscarriage have an impairment of fibrino...

Prevalence of chromosomal abnormalities and timing of karyotype analysis in patients with recurrent implantation failure (RIF) following assisted reproduction

AIMS To analyze the prevalence and type of karyotype abnormalities in RIF patients and to evaluate the adequate timing for analysis and the presence of possible risk factors. METHODS 615 patients (317 women and 298 men) with RIF, having undergone at least 3 sequential failed IVF/ICSI cycles prior to karyotype analysis, were included in this study. Anomaly rates found were compared with publis...

Recurrent Implantation Failure Is More Frequently Seen in Female Patients with Poor Prognosis