title: Effect of mid-follicular phase recombinant LH versus urinary HCG supplementation in poor ovarian responders undergoing IVF - a prospective double-blinded randomized study.
abstract: Luteinizing hormone (LH) is crucial for the development of follicular growth and oocyte maturation, especially in the management of poor ovarian responders (PORs). This study presents the results of a prospective double-blinded randomized study to compare the effect of mid-follicular phase recombinant LH (rLH) supplementation with urinary human chorionic gonadotrophin (uHCG) supplementation when using a fixed gonadotrophin-releasing hormone (GnRH) antagonist protocol in IVF cycles. A total of 49 women with poor ovarian response (POR) according to the Bologna criteria were recruited. This study showed no statistically significant difference in cycle cancellation rates, numbers of oocytes retrieved per cycle initiated, fertilization rates, the numbers of embryos obtained per cycle initiated, implantation, clinical pregnancy and live birth rates, although the live birth rate per cycle initiated in the uHCG group (29.2%) was 3.6 times that of the rLH group (8.0%). Further studies are required to verify if uHCG supplementation produces better clinical outcomes compared with rLH in women with POR.
authors.affiliation: Assisted Reproduction Technology Unit, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Sze Man Jennifer
authors.initials: SM
authors.lastname: Mak
authors.affiliation: Assisted Reproduction Technology Unit, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Wai Yee
authors.initials: WY
authors.lastname: Wong
authors.affiliation: Assisted Reproduction Technology Unit, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Hoi Sze
authors.initials: HS
authors.lastname: Chung
authors.affiliation: Assisted Reproduction Technology Unit, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Pui Wah
authors.initials: PW
authors.lastname: Chung
authors.affiliation: Assisted Reproduction Technology Unit, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong. Electronic address: gracekong@cuhk.edu.hk.
authors.forename: Grace Wing Shan
authors.initials: GW
authors.lastname: Kong
authors.affiliation: Assisted Reproduction Technology Unit, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Tin Chiu
authors.initials: TC
authors.lastname: Li
authors.affiliation: Assisted Reproduction Technology Unit, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Lai Ping
authors.initials: LP
authors.lastname: Cheung
mesh_terms: D000328:Adult; D006063:Chorionic Gonadotropin / Q000627:therapeutic use*; D004311:Double-Blind Method; D010064:Embryo Implantation; D005260:Female; D005307:Fertilization in Vitro; D005498:Follicular Phase; D006801:Humans; D007986:Luteinizing Hormone / Q000008:administration & dosage / Q000627:therapeutic use*; D010062:Ovulation Induction / Q000379:methods*; D011247:Pregnancy; D018873:Pregnancy Rate
chemical_list: D006063:Chorionic Gonadotropin; D007986:Luteinizing Hormone
keywords: IVF; Live birth rate; Luteinizing hormone supplementation; Poor ovarian responder; Recombinant luteinizing hormone; Urinary human chorionic gonadotrophin