Endometrial thickness: a predictor of implantation in ovum recipients?

Abstract
In a retrospective study, the relationship between endometrial thickness and pregnancy rate has been studied in 59 ovum recipient women. Transvaginal ultrasound assessment of endometrial thickness was performed immediately prior to ovum transfer: 19 pregnant recipients had a mean endometrial thickness of 10.24 mm ± 2.63 SD, 40 nonpregnant recipients had an endometrial thickness of 8.62 mm ± 3.49 SD (t = 1.805, P = 0.0382). Only two pregnancies occurred in 15 recipients with an endometrial thickness <7.5 mm, and none when the endometrial thickness was <7.5mm, and none when the endometrial thickness was <5mm. Our results indicate that endometrial thickness is related to the functional receptivity of the endometrium.

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