does the ovarian stimulation phase length predict in vitro fertilization outcomes

Does the Ovarian Stimulation Phase Length Predict In vitro Fertilization Outcomes

Does the Ovarian Stimulation Phase Length Predict In vitro Fertilization Outcomes?

BACKGROUND Bi-directional communication between the follicle and oocyte is necessary to regulate follicle and oocyte development. Currently, it is not practical to monitor the serial growth of individual follicles during assisted reproduction. The ovarian stimulation phase length (SPL) is an indirect measure of mean follicular growth rate. The objective of this study was to test the hypothesis ...

Controlled ovarian hyperstimulation: does prolonged stimulation justify cancellation of in vitro fertilization cycles?

BACKGROUND In daily practice, assisted reproductive technology (ART) cycles are often cancelled under the assumption that a prolonged stimulation period lowers the likelihood of an appropriate ovarian response. The aim of the present study was to determine whether a prolonged cycle has an adverse effect on achievement of pregnancy. METHODS The study sample included consecutive women enrolled ...

Comparison of outcomes and direct cost between minimal stimulation and conventional protocols on ovarian stimulation in in vitro fertilization.

AIM To determine whether minimal stimulation with clomiphene and gonadotropin provides outcomes and direct costs comparable with those of a conventional GnRHa-gonadotropin stimulation protocol for infertile patients undergoing in vitro fertilization. METHODS A non-randomized clinical trial was conducted from 1 July 1996 to 31 March 2003 at the Infertility and Assisted Reproductive Unit, Ramat...

Allelic estrogen receptor 1 (ESR1) gene variants predict the outcome of ovarian stimulation in in vitro fertilization.

The outcome of in vitro fertilization (IVF) depends substantially on the effectiveness of controlled ovarian hyperstimulation (COH) induced by administration of follicle-stimulating hormone (FSH). In COH, endogenously produced estrogens extend the action of FSH in stimulating folliculogenesis. We determined the associations between genetic variations in estrogen receptor ESR1 and ESR2 genes and...

Does a woman's educational attainment influence in vitro fertilization outcomes?

The association between educational level and cycle outcomes was quantified by applying multivariable logistic and linear regression within a prospective cohort of 2,569 women commencing their first in vitro fertilization (IVF) cycle. Although a woman's educational attainment was not associated with the likelihood of implantation failure, chemical pregnancy, spontaneous abortion, or live birth,...