Journal
REPRODUCTIVE BIOMEDICINE ONLINE
Volume 34, Issue 6, Pages 598-604Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.rbmo.2017.03.004
Keywords
FORT; ICSI; IVF; Ovarian response; Unexplained infertility
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This study aimed to determine whether follicular output rate (FORT) can predict the clinical pregnancy rate in women with unexplained infertility undergoing IVF/ICSI. This was a prospective study conducted at Dar El Teb subfertility centre in Cairo between June 2014 and July 2016. A total of 303 women with unexplained infertility, who were undergoing IVF/ICSI, were divided into three groups according to FORT tertile values. FORT was calculated as pre-ovulatory follicle count/antral follicle count x 100. There was a progressive and significant increase from the low to the high FORT groups in the clinical pregnancy rate (29.9%, 43.3% and 57.8%; P < 0.001), number of retrieved oocytes 15.4 +/- 1.5, versus 6.8 +/- 2.8, and 7.4 +/- 2.1; P < 0.0011, and fertilization rate (48.4 +/- 21.8 versus 55.3 +/- 20.3 and 57.4 +/- 19.2; P = 0.006). Multivariate logistic regression analysis revealed that the correlation between FORT and pregnancy was independent of potential confounding factors (P = 0.008). We concluded that FORT is an independent variable affecting the clinical pregnancy rate in IVF/ICSI cycles. Higher FORT values had better oocyte yield and clinical pregnancy rates in women with unexplained infertility undergoing IVF/ICSI with potentially normal ovarian response. (C) 2017 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.
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