IMR Press / CEOG / Volume 31 / Issue 2 / pii/2004024

Clinical and Experimental Obstetrics & Gynecology (CEOG) is published by IMR Press from Volume 47 Issue 1 (2020). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with S.O.G.

Original Research

Neither sildenafil nor vaginal estradiol improves endometrial thickness in women with thin endometria after taking oral estradiol in graduating dosages

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1 The University Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School at Camden, Cooper/Hospital University Medical Center, Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology & Infertility, Camden, NJ (USA)
Clin. Exp. Obstet. Gynecol. 2004, 31(2), 99–102;
Published: 10 June 2004
Abstract

Purpose: To determine if sildenafil improves endometrial thickness better than vaginal estradiol (E2) in women with a history of thin endometria. Methods: Women failing to attain an 8 mm endometrial thickness on either the oocyte retrieval cycle or their first frozen embryo transfer (ET) despite an oral graduated E2 regimen were treated again with graduated oral E2 and were also randomly assigned to vaginal sildenafil or vaginal E2 therapy. Endometrial thickness was compared between the groups. Results: Neither vaginal E2 nor sildenafil significantly improved endometrial thickness or blood flow in the subsequent frozen ET-cycle. Conclusions: These data fail to corroborate previous claims that 25 mg sildenafil four times daily intravaginally can improve endometrial thickness.

Keywords
Endometrial blood flow
Endometrial thickness
Estradiol
Frozen embryo transfer
Sildenafil
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