A comparison of letrozole to gonadotropins for ovulation induction in subjects with advanced maternal age: a retrospective pilot study.
This retrospective study was performed to compare the success of ovulation induction using letrozole versus gonadotropins in women at least 38 years of age, with normal ovarian reserve. Pregnancy and clinical pregnancy rates (PR) were statistically higher with gonadotropin than with letrozole stimulation.
Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Stanford University, Stanford, California 94305-5317, USA. dahanhaim@hotmail.com
Michael H
MH
Dahan
Rudolfo B
RB
Quintero
Renata
R
Urban
D000328:Adult; D047072:Aromatase Inhibitors / Q000008:administration & dosage; D005260:Female; D006062:Gonadotropins / Q000008:administration & dosage*; D006801:Humans; D007247:Infertility, Female / Q000188:drug therapy*; D000077289:Letrozole; D008875:Middle Aged; D009570:Nitriles / Q000008:administration & dosage*; D010062:Ovulation Induction / Q000379:methods*; D010865:Pilot Projects; D011247:Pregnancy; D018873:Pregnancy Rate; D012189:Retrospective Studies; D016896:Treatment Outcome; D014230:Triazoles / Q000008:administration & dosage*
D047072:Aromatase Inhibitors; D006062:Gonadotropins; D009570:Nitriles; D014230:Triazoles; D000077289:Letrozole