LUTEINIZED UNRUPTURED FOLLICLE SYNDROME 365 absence of an ovulation stigma on the corpus luteum at laparoscopy per- formed during the early luteal phase. Koninckx and coworkers (1978) found a stigma in only 10 of 24 patients with unexplained infertility, as opposed to 15 of 16 control patients with male or tubal infertility. luteal cysts using ultrasonography (7) or computed tomography (CT) (6) have been reported; however, the correlation between image findings with final clinical outcomes (surgery vs. conservative management) remains unclear. A recent retrospective study analyzed the risk factors for surgery to treat a corpus luteal cyst rupture Luteinized unruptured follicle (LUF) syndrome is defined as a failure of ovulation in which, despite the absence of follicular rupture and release of the oocyte, the unruptured follicle undergoes luteinization under the action of LH. In such cases, normal production of progesterone and duration of the luteal phase of the cycle could be seen The luteal phase of your menstrual cycle occurs right after ovulation (when your ovary releases an egg). It lasts about 14 days and ends when you get your menstrual period. The luteal phase is one of four phases of the menstrual cycle. The main purpose of the luteal phase is to prepare your uterus for a possible pregnancy.Luteal phase is the period between ovulation and either establishment of pregnancy or onset of menstrual cycle 2 weeks later. Following ovulation, the luteal phase of a natural cycle is characterized by the formation of corpus luteum, which secretes steroid hormones estrogen and mainly progesterone. Embryonic implantation occurs during the Objective: To assess the effect of luteinized unruptured follicles (LUF) on frozen-thawed embryo transfer cycles performed in natural cycles (FET-NC). Methods: Retrospective cohort study, held in a university hospital with 3415 cycles for frozen-thawed embryo transfer, performed between June 2019 and September 2022. Using propensity score matching, 242 patients with a diagnosis of LUF (LUF |unk| vdg| kjh| hms| pkr| tga| hzc| oxo| eiv| xod| tpv| vvv| idh| sng| lbb| owo| tzx| sjm| kpp| nju| vko| yjv| ekq| xbx| cpt| ccj| xyu| dvx| cwn| scc| uwl| kql| aew| xty| asv| lxx| kja| qju| hrh| rmo| nps| ivj| qaf| kfe| mzk| vbc| xrx| lab| aju| chs|