Results 11 to 20 of about 665,097 (197)

Hormonal parameters and embryological outcomes of in vitro fertilisation/intra cytoplasmic sperm injection cycles in women using dydrogesterone for the prevention of premature luteinizing hormone surge during ovarian stimulation [PDF]

Гинекология, 2022
Aim. To evaluate the hormonal parameters and embryological outcomes of an ovarian stimulation protocol using dydrogesterone to prevent the premature LH surge in IVF/ICSI programmes. Materials and methods.
Irina E. Korneeva, Alla I. Kovalchuk, Tatiana A. Nazarenko, Elena V. Mityurina, Svetlana G. Perminova, Aleksei V. Bachurin, Tatiana Yu. Ivanets   +6 more
doaj   +3 more sources

Dose-Dependent Chlormadinone Acetate Can Suppress Premature LH Surge in Parallel with LH Value Reduction

Fertility & Reproduction, 2020
Background: Progestin-primed ovarian stimulation (PPOS) protocol is reported as an alternative method of premature luteinizing hormone (LH) surge suppression. How much dosage of chlormadinone acetate (CMA), a synthetic progestin, is appropriate treatment
Yuya Takeshige, Tomoko Hashimoto, Koichi Kyono   +2 more
doaj   +2 more sources

Nimodipine, a calcium channel blocker, delays the spontaneous LH surge in women with regular menstrual cycles: a prospective pilot study [PDF]

Reproductive Biology and Endocrinology, 2013
Background Currently GnRH analogue injections are used to prevent premature LH surges in women undergoing assisted reproductive technology. This was a pilot study to determine the safety and effectiveness of nimodipine, an oral calcium channel blocker ...
Nayot Dan, Klachook Shany, Casper Robert F   +2 more
doaj   +2 more sources

Short, semi-short or long GnRH agonist treatment regimens in women ICSI candidate; which is proper in

Middle East Fertility Society Journal, 2016
Objectives: Investigation of two discontinuous GnRH agonist (GnRH-a) protocols (Short and semi-short) versus traditional long protocol in preventing premature LH surge in women undergoing Intra-cytoplasmic sperm injection (ICSI).
Popea Rezaeian, Sedighe Esmaeilzadeh, Zahra Tajali, Fateme Nadi Heidari, Masoumeh Golsorkhtabaramiri   +4 more
doaj   +2 more sources

Hypothalamic effects of progesterone on regulation of the pulsatile and surge release of luteinising hormone in female rats [PDF]

Scientific Reports, 2017
Progesterone can block the oestradiol-induced GnRH/LH surge and inhibit LH pulse frequency. Recent studies reported that progesterone prevented premature LH surges during ovarian hyperstimulation in women. As the most potent stimulator of GnRH/LH release,
Wen He, Xiaofeng Li, Daniel Adekunbi, Yali Liu, Hui Long, Li Wang, Qifeng Lyu, Yanping Kuang, Kevin T. O’Byrne   +8 more
doaj   +2 more sources

Therapeutic effects of an oral gonadotropin‐releasing hormone receptor antagonist, relugolix, on preventing premature ovulation in mild ovarian stimulation for IVF

Reproductive Medicine and Biology, 2022
Purpose Can relugolix, a novel oral gonadotropin‐releasing hormone receptor (GnRH) antagonist, function as an alternative ovulation inhibitor to GnRH antagonist injections?
Kazuki Nakao, Keiji Kuroda, Takashi Horikawa, Azusa Moriyama, Hiroyasu Juen, Akiko Itakura, Hideaki Watanabe, Satoru Takamizawa, Yuko Ojiro, Koji Nakagawa, Rikikazu Sugiyama   +10 more
doaj   +2 more sources

Does premature luteinization or early surge of LH impair cycle outcome? Report of two successful outcomes [PDF]

Journal of Assisted Reproduction and Genetics, 2009
To report two successful antagonist IVF cycles; one ending up with pregnancy despite premature luteinization (case 1, aged 35 years), and the other with the retrieval of high quality oocytes despite premature ovulation (case 2, aged 39 years).Serum LH was 36 and 47 IU/L on cycle day 7 before antagonist administration, which was then brought to 6.94 and
Sönmezer, Murat, Pelin Cil, Aylin, Atabekoğlu, Cem, Özkavukçu, Sinan, Özmen, Batuhan   +4 more
openaire   +6 more sources

A premature luteinizing hormone surge without elevated progesterone levels has no adverse effect on cumulative live birth rate in patient undergoing a flexible GnRH antagonist protocol: a retrospective study

Journal of Ovarian Research, 2023
Background A premature luteinizing hormone (LH) surge refers to an endogenous LH peak that occurs before follicle maturation or human chorionic gonadotropin injection in the process of controlled ovarian hyperstimulation. The effect of premature LH surge
Yangyang Zhang, Yang Xu, Jiao Yu, Xi Wang, Qing Xue, Jing Shang, Xiuli Yang, Xuemin Shan   +7 more
doaj   +1 more source

Diminished ovarian reserve predisposes to premature luteinizing hormone surges in gonadotropin-releasing hormone antagonist cycles in In vitro fertilization

Journal of Human Reproductive Sciences, 2020
Context/Background: A premature luteinizing hormone (LH) surge, in in vitro fertilization (IVF) cycles with gonadotropin-releasing hormone (GnRH)-antagonist downregulation, leads to cycle cancellation.
Puneet Kaur Kochhar, Pranay Ghosh
doaj   +1 more source

A novel GnRH-antagonist protocol by switching to medroxyprogesterone when patients being at risk of ovarian hyperstimulation syndrome during ovarian stimulation

Journal of the Formosan Medical Association, 2020
Background/Purpose: To investigate whether switching GnRH antagonist (GnRHant) to medroxyprogesterone acetate (MPA) sequentially in the middle of controlled ovarian stimulation could effectively prevent premature LH surge in a GnRHant protocol in ...
Ting-Chi Huang, Yu-Hung Lin, Song-Po Pan, Yi-An Tu, Chu-Chun Huang, Mei-Jou Chen, Jiann-Loung Hwang, Shee-Uan Chen   +7 more
doaj   +1 more source