Jung Ryeol Lee

Despite widespread rhFSH use in infertile women undergoing ART, real-world comparative data on its effectiveness and safety across different rhFSH types remain limited. Using the HIRA claims database, we included 10,684 women aged 20-39 wit…

Background: Effective management of endometriosis necessitates a comprehensive, multidisciplinary approach. Networks or centres of expertise play a pivotal role in enhancing clinical care, fostering collaboration, and promoting innovative r…

This article reports the live birth of a healthy newborn using vitrified-warmed oocytes from fertility preservation before ovarian surgery. The patient in our case underwent two cycles of controlled ovarian stimulation before laparoscopic b…

BackgroundFemale infertility is a crucial problem with significant implications for individuals and society. In this study, we explore risk factors for infertility in Korean women.MethodsA total of 986 female patients who visited six major …

Background: Reduced-port robotic myomectomy (RPRM) using Da Vinci® Xi™ is a good fertility-saving surgical option, but the surgical and fertility outcomes are unknown. Methods: This was a retrospective cohort study evaluating the feasibilit…

Background and Aims: Endometriosis is known to have detrimental effects on fertility, but there is no consensus on the optimal stimulation protocol for IVF-ET in patients with endometriosis. The study aimed to compare the IVF outcomes of go…

Background and Aims: Laparoscopic ovarian cystectomy has been the mainstay of surgical methods for endometriosis. Recently, robot-assisted ovarian cystectomy using Da Vinci Ⓡ Xi ™ surgical system has been successfully introduced into clinic…

ObjectiveThe aim of this study was to assess the correlation of oocyte number with serum anti-Müllerian hormone (AMH) levels measured by two automated methods (Access or Elecsys) in fresh stimulated in vitro fertilization (IVF) cycles.Metho…

This study investigated the genetic association between recurrent pregnancy loss (RPL) and microRNA (miRNA) polymorphisms in miR-10aA>T, miR-30cA>G, miR-181aT>C, and miR-499bA>G in Korean women. Blood samples were collected from 381 RPL pat…

PurposeThe present study aimed to identify microorganisms in follicular fluids and to investigate their association with in vitro fertilization (IVF) outcomes.Materials and methodsThis study was conducted as a prospective study of 49 infert…

The purpose of this study was to investigate whether polymorphisms in five microRNAs (miRNAs), miR-604A>G, miR-608C>G, 631I/D, miR-938G>A, and miR-1302-3C>T, are associated with the risk of idiopathic recurrent pregnancy loss (RPL). Blood s…

ObjectiveThis study aimed to investigate sperm motility and its changes after preparation as predictors of pregnancy in intrauterine insemination (IUI) cycles.MethodsIn total, 297 IUI cycles from January 2012 to December 2017 at a single te…

Endometrioma is known to reduce the ovarian reserve and the extent of the decrease is more severe when ovarian surgery is performed. Therefore, to prevent this decline in fertility, patients with endometrioma are considered candidates for p…

This corrects the article "Management of endometriosis-related infertility: Considerations and treatment options" in Volume 47 on page 1.

Endometriosis is a common inflammatory disease in women of reproductive age and is one of the major causes of infertility. Endometriosis causes a sustained reduction of ovarian reserve through both physical mechanisms and inflammatory react…

Research-questionWhat is the clinical usefulness of oocyte cryopreservation for fertility preservation in women with ovarian endometriosis?DesignClinical characteristics were retrospectively analysed in 34 women with endometrioma before a p…

This study aimed to analyze the effects of a new protocol with letrozole on the outcomes of in vitro fertilization (IVF) cycles in women with endometriosis. This retrospective cohort study was conducted for women diagnosed with endometriosi…

ObjectiveUterine contraction induced by the embryo transfer (ET) process has an adverse effect on embryo implantation. The aim of this study was to determine the effect of oxytocin antagonist supplementation on the day of ET on in vitro fer…

Study objectiveTo compare the operative outcomes of patients undergoing either single-port or multiport laparoscopic hysterectomy (LH).MethodsTwo hundred fifty-six women scheduled for LH for symptomatic myoma and/or adenomyosis from 8 terti…

This prospective study investigated the relationship between anti-Müllerian hormone (AMH) level in the follicular fluid (FF) and the quality of the oocyte and embryo. A total of 65 FF samples from 54 women were included in this study. FF wa…

ObjectiveThis study was performed to assess the prognostic value of serum hCG, progesterone, and inhibin A levels measured at 11 days post-ET for predicting pregnancy outcome in women participating in IVF.MethodsBetween May 2005 and April 2…