Active clinical trials for "Infertility"

The purpose of this study is to compare pregnancy outcomes of frozen-thawed embryo transfer after endometrial preparation with vaginal estradiol or transdermal estradiol and to evaluate women's satisfaction

The investigators shall study the effect of Sinopharm vaccination on semen parameters and serum testosterone

Infertility is a major problem nowadays

Salivary diagnostic testing is emerging as a less invasive, inexpensive alternative to serum analyte measurements with proven diagnostic accuracy in clinical settings. This study aims to continue analyzing aspects of the performance of salivary hormone competitive immunoassays for monitoring patient's reproductive hormone profiles in the reproductive cycle. Hormone levels will be monitored during treatment cycles for infertility.

The prevalence of infertility has been estimated at 9% worldwide. The steadily increasing use of assisted reproductive technologies (ART) has allowed millions of infertile couples to have children. These children make up for 1 to 4% of the population in developed countries. ART involves the manipulation of early embryos at a time when they may be particularly vulnerable to external disturbances. In line with this concept, studies in mice suggest that ART alters the activity of enzymes involved in the regulation of metabolic and cardiovascular homeostasis. Alternatively, infertility itself or the drugs used to stimulate ovulation may have adverse effects on the outcome of the offspring. The safety of ART for long-term health is, therefore, of utmost importance. Among the potential long-term consequences of ART, cardiovascular disease may represent an important candidate, but there is no information. Investigators show that, children born after in vitro fertilization (IVF) present systemic and pulmonary vascular dysfunction at high-altitude when compared to age- and sex-matched control subjects. A 5 years follow-up study shows that premature vascular aegieng persist and evolve to arterial hypertension. Arterial hypertension may induce cardiac dysfunction. Therefore, the major goal of this proposal is to assess cardiac function in apparently healthy participants born after ART.

Impaired endometrial growth (thin endometrial thickness) is a critical factor for implantation failure. In this study, effects of vitamin E on endometrial growth are studied.

Study Goals: Finding the prevalence of bacteria of the sperm in an innovative and more accurate methode Understanding the effect of microbes on the process of capacitation The impact of microbes in the sperm on IVF success rate Finding the incidence of vaginal bacteria and their relationship to bacteria of the sperm The impact of vaginal flora on IVF success rate

The study is performed to compare the outcomes of two stimulation protocols, the minidose long protocol versus the microdose flare protocol in poor responders undergoing IVF/ICSI.

The investigator suggests that PCOS women with high AMH levels are resistant to ovarian stimulation and may need adjustment of the dose of gonadotrophin.

Thousands of vein punctures are done every day at hospitals worldwide. Vein puncture are performed in connection with blood sampling, peripheral intravenous catheter (PIV) placement or blood donation. The predominantly used venous for blood withdraw are in the cubital region because in this area venous are most superficial placed and most often visible for the human eye. However, when using the usual blind landmark and palpation method in this region, it often proves exceedingly difficult or even impossible to obtain peripheral venous access on patients who are obese, chronically ill, hypovolemic or intravenous drug users. Various studies have shown that the success rate for establishing a vascular access with ultrasound compared to blind landmark technique is higher in patients with difficult access. When ultrasound is used to establish intravascular access, the prerequisite sterile puncture area can be challenging to meet due to ultrasound gel on the area and the fact that the ultrasound transducer cannot be wiped clean with alcohol after being in contact with a patient's skin or blood. A strict sterile procedure is important to reduce complications related to infection.The traditional way of coping with this is by covering the transducer and the wire in a long sterile sheet and using sterile gel. The sheet must be tight with rubber band around the transducer and pulled tightly around the transducer foot to prevent artefacts from appearing on the screen. This is an expensive and time consuming method, and it still leaves the problem with gel in the puncture area. The investigators have developed a method by where all these problems are solved by using, a slightly modified, commercial drape in combination with the Dynamic Needle Tip Positioning technique The investigators hypothesize that it is possible to perform ultrasound-guided venous puncture with a sterile and dry puncture area and that puncture can be performed proximal and distal to the traditional puncture side. It is a procedure presenting study that serves to demonstrate the feasibility of the method in ten healthy volunteers. The study will take place at Aarhus University Hospital, Skejby.