Retrospective study designed to evaluate outcomes in patients undergoing assisted reproduction. Some of them had thrombophilia, and part of them was treated with enoxaparin, started on the day of embryo transfer, and the other part not. Women without thrombophilia formed the control group.

A retrospective study was performed to evaluate the results in 104 patients undergoing to assisted reproduction. Women without thrombophilia were included as controls (n=20), while women with thrombophilia were either treated with 40 mg daily of enoxaparin (treated group, n=54), initiated on the day of embryo transfer, and continued to the week 36 of gestation, or did not receive this medication (untreated group, n= 30).

Inclusion Criteria:

• Women with female infertility or unexplained infertility
• Normal sperm analysis

Exclusion Criteria:

• Women who did not agree with in vitro fertilization techniques

All included patients underwent in vitro fertilization (IVF) treatment with intracytoplasmic sperm injection (ICSI). Patients were initially submitted to controlled ovarian hyperstimulation under a short protocol with gonadotropins and GnRH antagonist. Women with laboratorial thrombophilia could be treated or not with enoxaparin according to her physician's decision. Women without detectable thrombophilia formed the control group.

The IPD sharing was not approved yet by our ethical committee board