Endometrial vascularity: Its relation to implantation rates

Abstract

Aim: The aim of this study was to find out if endometrial vascularity can be used as a predictive factor for implantation. Materials and methods: This is a retrospective study of 500 ovum donation-embryo transfer cycles, with basal S FSH > 25. Those with endometrial thickness of >8 mm with intact junctional zone and uterine artery PI < 3.2 were taken for embryo-transfer. Vaginal micronized progesterone was started from the day of ovum pick up of the ovum donor. Two fresh grade 1, 4-6 cell embryos, were transferred on day 3. Progesterone support was continued till the day of β-hCG. β-hCG was checked in all patients followed by USG 2 weeks later. Results were observed for four groups, depending on vascularity zones 1, 2, 3, 4.2 Follow-up with ultrasound was done till 8 weeks for ongoing pregnancy. Results: The biochemical pregnancy rates and ultrasound evidenced pregnancy rates were very high when vascularity was seen in zone 3 and 4 of endometrium with low abortion rates. Conclusion: We believe that endometrial vascularity is an important parameter to assess the implantation potential of the endometrium.