Body mass index: impact on IVF success appears age-related.

Background: The objective of this study was to examine the effect of BMI on IVF outcomes.

Methods: This was a retrospective analysis of all patients undergoing IVF from 1st January 2005 to 1st March 2006 in a large private practice using a single IVF laboratory. The patients underwent standard protocols for controlled ovarian hyperstimulation and embryology parameters.

Age-matched comparison of recombinant and urinary HCG for final follicular maturation.

This age-matched retrospective analysis compared the clinical outcomes of recombinant human chorionic gonadotrophin (rHCG) and urinary HCG (uHCG) in patients undergoing fresh, nondonor IVF cycles. The patients underwent ovarian stimulation by standard gonadotrophin-releasing hormone (GnRH) agonist down-regulation or a GnRH antagonist protocol using recombinant FSH (rFSH) alone or in combination with human menopausal gonadotrophin. When two or more follicles had attained a mean diameter of 20 mm, follicular triggering was achieved with either Ovidrel (rHCG) 250 mug SC or uHCG 10,000 IU IM.