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Clinical and Experimental Obstetrics & Gynecology  2008, Vol. 35 Issue (3): 190-193    DOI:
Original Research Previous articles | Next articles
Ultrasound assessment of endometrial thickness: correlation with ovarian stimulation and pregnancy rates in IVF cycles
D. Giannaris1, *(), A. Zourla1, C. Chrelias1, C. Loghis1, D. Kassanos1
1Assisted Reproduction Unit, 3rd Department of Obstetrics and Gynecology, University of Athens, “Attikon” Hospital (Greece)
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Abstract  
Purpose: To study the correlation between endometrial thickness and IVF outcome and factors affecting this relation. Methods: Transvaginal ultrasound evaluation of endometrial thickness on hCG administration day in 112 IVF-ET cycles and comparison to indices of ovarian stimulation. Outcome was considered positive when fetal sac and fetal heart pulse were present at ultrasound. GnRH-agonist and antagonist protocols were also compared. Statistical analysis was performed by the SPSS system, chi-square and t-test. Results: 38 cycles displayed clinical pregnancy. In cases of higher endometrial thickness, pregnancy rates, mean serum estradiol levels, oocyte and mature oocyte numbers as well as mean large follicle numbers were higher, while the mean age was lower. Conclusions: In 38 cycles resulting in pregnancy, mean endometrial thickness was higher compared to cycles with negative outcomes. Higher serum estradiol is associated with higher endometrial thickness and pregnancy rates. Women achieving pregnancy and pregnant women with endometrium thicker than 9 mm were younger. Follicle stimulation was better with higher endometrial thickness. After adjustments for age, no statistical difference was found in endometrial thickness between agonist and antagonist protocols.
Key words:  Endometrial thickness      Transvaginal ultrasound      IVF outcome      Ovarian stimulation     
Published:  10 September 2008     
*Corresponding Author(s):  D. GIANNARIS     E-mail:  dimgiann@panafonet.gr

Cite this article: 

D. Giannaris, A. Zourla, C. Chrelias, C. Loghis, D. Kassanos. Ultrasound assessment of endometrial thickness: correlation with ovarian stimulation and pregnancy rates in IVF cycles. Clinical and Experimental Obstetrics & Gynecology, 2008, 35(3): 190-193.

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https://ceog.imrpress.com/EN/     OR     https://ceog.imrpress.com/EN/Y2008/V35/I3/190

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