Effects of Aspirin and Low Molecular Weight Heparin in IVF Outcome.
Effects of Aspirin and Low Molecular Weight Heparin in IVF Outcome.
The purpose of the study is to determine whether low-dose aspirin and low molecular weight
 heparin improve the implantation and pregnancy rates in patients with repeated implantation
 failures in IVF cycle.
The investigators hypothesize that cotreatment of low dose aspirin & low molecular weight
 heparin may improve implantation & clinical pregnancy rates.
Inclusion Criteria:

 -  Aged between 19 to 35 years;

 -  Basal follicle-stimulating hormone (FSH) levels of ≤8 IU/l

 -  Body mass index (BMI) between 19 kg/m2 and 25 kg/m2

 -  Presence of both ovaries; ≥2 previous IVF failures

 -  Good quality embryos for transfer

 -  Endometrial thickness between 10 mm and 14 mm

 Exclusion Criteria:

 -  Polycystic ovary syndrome

 -  Endometriosis