This is a prospective observational study. Eligible women undergo ART treatment in our centre will be recruited for the study and each woman will only be included in the study once. Informed written consent will be obtained. Blood serum for hCG level is performed 14 days after the embryo transfer i.e. week 4. If the serum hCG level is \>10IU/L, the women are considered pregnant and blood will be saved and checked for kisspeptin level, Another blood test is repeated 1 week later i.e. week 5. A transvaginal ultrasound and blood test will be performed 1 week later i.e. week 6 to confirm the fetal viability and the number of gestational sacs and locate the pregnancy. Blood for hCG and kisspeptin levels are checked at weeks, 4, 5 and 6. Ultrasound will be performed at gestational 8 weeks and 11 weeks. They will be referred for antenatal care when the pregnancy is confirmed on-going at 11 weeks. The purpose is to determine whether serum kisspeptin level in women who conceive in IVF is associated with an increased risk in first trimester miscarriage and compare with serum hCG level in the prediction of the first trimester miscarriage.
Study Type
OBSERVATIONAL
Enrollment
182
ShangHai JIAI Genetics&IVF Institute
Shanghai, China
Early miscarriage loss
defined as intrauterine pregnancy loss at less than 10 weeks' gestation as identified by ultrasound, including identification of empty sac, miscarriage, yolk sac miscarriage and embryonic miscarriage
Time frame: 10 weeks
Biochemical pregnancy
defined as pregnancy demise based on decreasing serum or urinary beta-HCG levels, without ultrasound visualization
Time frame: 8 weeks
Positive hCG level
conception is defined with the result of serum β-hCG ≥10 mIU/mL.
Time frame: 4 weeks
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.