Active clinical trials for "Ovarian Hyperstimulation Syndrome"

The aim of this study is to compare the efficacy of calcium gluconate infusion versus cabergoline in the prevention of ovarian hyperstimulation syndrome (OHSS) in patients pretreated with GnRH agonist long protocol who are at high risk for OHSS.

The use of antagonist controlled ovarian stimulation protocols has allowed the use of GnRH agonist to be used for final oocyte maturation. The use of GnRH agonist as ovulation trigger has been shown to reduce the risks for ovarian hyperstimulation syndrome (OHSS), but its sole use results in reduced embryo implantation due to luteal phase insufficiency. The combination of GnRH agonist and variable doses of hCG for final oocyte maturation has been shown to overcome the luteal phase insufficiency effecting endometrial receptivity. In this study the investigators will test the hypothesis that using GnRH agonist (0.2mg Triptorelin) and a full dose of hCG (6500IU Ovitrelle) for final oocyte maturation in normoresponders will increase oocyte maturity, embryo quality and embryo implantation and reduce ovarian hyperstimulation syndrome, as compared to the traditional hCG (full dose) alone trigger.

There are many protocols for prevention of ovarian hyperstimulation syndrome, intravenous calcium is a novel protocol. But still there is lack of evidence of it is real effect in prevention of OHSS & the mechanism of its action is still questionable . In the study the investigators try to search for the evidence for its effect & the real mechanism for its action.

The purpose of this study is to compare the effect of oral Diosmin to oral Cabergoline in the prevention of ovarian hyperstimulation syndrome (OHSS) in high-risk women underwent intracytoplasmic sperm injection (ICSI).

The present study was designed to provide clinical confirmation of Cb2's value as a new approach in the prevention of increased vascular permeability and hemoconcentration, both signs of OHSS in humans, and in order to explore its mechanism of action. To this end, a prospective, randomized, placebo-controlled study was designed in which Cb2 was employed in women at risk of OHSS after gonadotropin administration for ART. Simultaneously, ovarian perfusion was assessed in these patients using MR pharmacokinetic modeling.

It has been suggested that in IVF cycles where GNRH agonist is utilized for final oocyte maturation in patients at risk of ovarian hyperstimulation, pregnancy rates are reduced. We hypothesize that the use of GNRH antagonist reduces pregnancy rates through an effect on the endometrium and not oocyte quality, therefore better results may be obtained by not returning these embryos in a fresh cycle but rather cryopreserving them and returning them to the uterus and a later stage.

Cabergoline prevents ovarian hyperstimulation syndrome in high risk patients by disrupting follicular fluid hormone microenvironmentally altering the follicular fluid levels of insulin like growth hormone -I (IGF-I), antimullerian hormone (AMH), inhibin B and hepatocyte growth factor (HGF) levels in women with PCOS and high risk of ovarian hyperstimulation syndrome (OHSS).

The aim of this study was to evaluate the efficacy and safety of domestic recombinant human follicle stimulating hormone (rhFSH) stimulating ovarian to promote follicular development before assisted reproductive technology, which was non-inferiority than that of the imported rhFSH.

This prospective, randomized, controlled clinical trial will evaluate the effect and security of dexamethasone prevention for Patients of Ovarian Hyperstimulation Syndrome.

Gonadotropin Releasing Hormone agonist (GnRHa) triggering is used as an alternative to human chorionic gonadotropin (hCG) in GnRH antagonist protocol to eliminate the risk of ovarian hyperstimulation syndrome (OHSS). However, its main disadvantage is a significantly lower pregnancy rate, hypothesized to result from a process called "luteolysis" (demise of the corpora lutea). In order to preserve a high pregnancy rates, several luteal support regimens were investigated, including an intensive estrogen and progesterone supplementation and a daily GnRHa treatment. However, no study, so far, compared the efficacy of these two regimens. Our aim is to compare the efficacy of GnRHa versus estrogen and progesterone supplementation for luteal phase support in high responders following GnRHa triggering.