Subcutaneous estradiol pellets for endometrial preparation in donor oocyte recipients with a poor endometrial response

The purpose of this study was to evaluate the clinical effectiveness of subcutaneous estradiol pellets in donor oocyte recipients with an inadequate endometrial response. The subjects were 13 women with ovarian failure and a maximal endometrial thickness < 10 mm on standard estrogen regimens, as...

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Bibliographic Details
Published in:Journal of assisted reproduction and genetics 1997-03, Vol.14 (3), p.139-144
Main Authors: DMOWSKI, W. P, MICHALOWSKA, J, RANA, N, FRIBERG, J, MCGILL-JOHNSON, E, DEORIO, L
Format: Article
Language:English
Subjects:
Abortion, Spontaneous
Adult
Biological and medical sciences
Birth control
Clinical Assisted Reproduction
Embryo Implantation
Embryo Transfer - methods
Endometrium - drug effects
Endometrium - physiology
Endometrium - physiopathology
Estradiol - administration & dosage
Estradiol - blood
Estradiol - therapeutic use
Estrone - blood
Female
Gynecology. Andrology. Obstetrics
Humans
Medical sciences
Middle Aged
Oocyte Donation
Pregnancy
Pregnancy Outcome
Primary Ovarian Insufficiency
Progesterone - therapeutic use
Sterility. Assisted procreation
Treatment Outcome
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Summary:The purpose of this study was to evaluate the clinical effectiveness of subcutaneous estradiol pellets in donor oocyte recipients with an inadequate endometrial response. The subjects were 13 women with ovarian failure and a maximal endometrial thickness < 10 mm on standard estrogen regimens, as demonstrated during mock and/or prior oocyte donation cycles. They underwent pellet implantation (100-250 mg of estradiol) 6-13 weeks before oocyte donation. maximal (mean +/- SD) endometrial thickness was 8.7 +/- 1.5 mm on standard regimens, in contrast to 11.7 +/- 1.8 mm on pellets, while estradiol levels were 674 +/- 844 and 815 +/- 706 pg/ml, respectively. The estradiol:estrone ratio on pellets was > 1. There was 1 pregnancy with early loss during 10 cycles on other estrogen regimens and 12 pregnancies during 19 cycles on pellets. The pregnancy and implantation rates were, respectively, 63 and 27% on pellets and 41 and 14% on standard regimens in historical controls. We conclude that estradiol pellets after a single administration provide constant estradiol levels extending into the first trimester of pregnancy, a physiologic estradiol:estrone ratio, and a better endometrial response than standard estrogen regimens. Implantation and pregnancy rates are higher. This approach may be especially suitable for recipients with a poor endometrial response.
ISSN:1058-0468
1573-7330
DOI:10.1007/BF02766129