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Less is More: Increased Gonadotropin Use for Ovarian Stimulation Adversely Influences Clinical Pregnancy and Live Birth After in Vitro Fertilization

Overview
Journal Fertil Steril
Date 2008 Apr 29
PMID 18440515
Citations 28
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Abstract

Objective: To determine if attempts to maximize oocyte yield during ovarian stimulation translates into improved outcome of in vitro fertilization (IVF) cycles.

Design: Retrospective study.

Setting: Academic tertiary care IVF center.

Patient(s): 806 de-identified nondonor IVF cycles.

Intervention(s): Evaluation of fresh nondonor IVF cycles (n = 806) for the period January 1, 1999, to December 30, 2001.

Main Outcome Measure(s): Cycle cancellation, clinical pregnancy, spontaneous miscarriage, and live birth after IVF.

Result(s): Advancing age, independent of ovarian reserve status (reflected by early follicular phase FSH and estradiol) augured a worse prognosis for all outcomes. Higher gonadotropin use lowered cycle cancellations but was associated with a statistically significantly reduced likelihood of clinical pregnancy and live birth and a trend toward a higher likelihood for spontaneous miscarriage after IVF.

Conclusion(s): Our data add to the accruing literature suggesting adverse influences of excess gonadotropin use on IVF outcomes. Although an aggressive approach to controlled ovarian hyperstimulation results in a statistically significant reduction in cycle cancellations, the excessive use of gonadotropins detrimentally influences live birth after IVF.

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