Endometrial pattern on the day of oocyte retrieval is more predictive of implantation success than the pattern or thickness on the day of hCG administration.

Abstract:

PURPOSE:Multiple studies have confirmed a lower implantation (IR) and pregnancy rate (PR) in women who exhibit a homogeneous pattern (pattern II) of the endometrium compared to a triple-line pattern (pattern I) on the day of hCG administration. However, no data are available to evaluate if patients alter their endometrial thickness and pattern between the day of hCG administration (DhCG) and the day of oocyte retrieval (DRET) and whether these changes adversely affect endometrial receptivity. METHODS:We prospectively evaluated 86 women (mean age, 32.9 +/- 3.8 years; range, 24-40 years) undergoing 103 IVF/ET cycles. RESULTS:Pattern II was noted in 7 cycles (6.8%) on DhCG, compared to 96 cycles with pattern I (93.2%). However, 20 cycles (19.4%) had pattern II on DRET. The ongoing IR was 13.0% (3/23) in the pattern II group compared to 20.8% (76/365) in the pattern I group on DhCG (P = NS). However, a significant decrease in the ongoing IR, to 9.9% (7/71), was noted in pattern II, compared to 23.3% (71/305) in pattern I, on DRET (P = 0.019). There was no difference in age, basal FSH, peak E2, P4 on the day of hCG, number of oocytes, number of ET, or endometrial thickness between pregnant and nonpregnant patients, or between patients with pattern I and those with pattern II. A trend toward higher progesterone levels on DhCG was noted in women with pattern II (P = 0.078). CONCLUSIONS:Endometrial pattern, rather than thickness, on the day of oocyte retrieval appears to be an important prognosticator of endometrial receptivity.

journal_name

J Assist Reprod Genet

authors

Sharara FI,Lim J,McClamrock HD

doi

10.1023/a:1020545120256

keywords:

subject

Has Abstract

pub_date

1999-11-01 00:00:00

pages

523-8

issue

10

eissn

1058-0468

issn

1573-7330

journal_volume

16

pub_type

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