Objective: To evaluate, in a large cohort of patients, oocyte quality and IVF outcome after coasting used to prevent ovarian hyperstimulation.
Setting: Retrospective study.
Patients: IVF cycles which had reached estradiol serum levels of at least 4,000 pg/mL without being coasted (control group, n = 208), or where coasting was applied (coasted group, n = 157).