The goal of this observational study is to understand the processes in the growing follicles development in more detail and to improve In Vitro Fertilisation (IVF) treatments. This involves measuring laboratory values in the blood, in the follicular fluid of the woman and in the sperm of the man as well as questionnaires concerning lifestyle factors. These values are then linked to the success of the fertility treatment to find out which of these values increase the success of the IVF treatment. Furthermore, the investigators want to investigate if there are differences between IVF treatments with or without hormonal stimulation of the ovaries.
This is a one-site prospective exploratory study at the University Clinic for Gynaecological Endocrinology and Reproductive Medicine in Bern. Data of influencing factors on IVF success in women and men will be collected in two types of IVF treatment, i.e. with or without hormonal stimulation of the ovaries. The investigators want to * compare the follicular fluid values between the two IVF treatment groups. * assess the associations and predictive power of follicular fluid / blood and sperm parameters for success of the IVF treatment. * compare the IVF success in the two treatment groups. The study aims to enrol approximately 200 couples. The data will be collected by the physicians and added to the REDcap study registry. Access to the total data set is only permitted for the principal investigator.
Study Type
OBSERVATIONAL
Enrollment
200
In Vitro Fertilisation (IVF) without hormonal stimulation
Test hormone levels in serum
Test hormone levels in follicular fluid Test Oxidation-reduction potential
Oxidation-reduction potential
In Vitro Fertilisation (IVF) with conventional hormonal stimulation
Inselspital Bern, Frauenklinik
Bern, Switzerland
RECRUITINGBlastocyst rate per oocyte
Number of blastocysts out of fertilized oocytes observed 5 days after fertilization
Time frame: 5 days after fertilization
Number of mature oocytes
Number of mature oocytes from punctured follicles
Time frame: 4-6 hours after punction
Cleavage rate per oocyte
Number of cleavage embryos out of fertilized oocytes observed 2 days after fertilization
Time frame: 2 days after fertilization
Morphologic evaluation of blastocyst
Morphologic evaluation according to the Gardner score (Gardner and Schoolcraft, 1999)
Time frame: 5 days after fertilization
Implantation rate
Endocrine pregnancy by measuring hCG in blood sample on day 10-12 after embryo transfer
Time frame: 10-12 days after embryo transfer
Clinical pregnancy rate
Clinical pregnancy confirmed by ultrasound, 5 weeks after embryo transfer.
Time frame: 5 weeks after embryo transfer
Live birth rate
Birth of a living baby nine months after embryo transfer
Time frame: 9 months after embryo transfer
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