BACKGROUND/AIMS Catheter injection speed affects depth and placement of the embryo into the uterine cavity and is shown to be highly variable in, and between, subjects in a manually performed embryo transfer. In an effort to standardize the injection speed during embryo transfer, we developed an automated transfer pump: the pump-regulated embryo transfer (PRET) device. In this randomized contro...

BACKGROUND The objective of the present study was to determine the importance of the site of embryo transfer (upper or lower half endometrial cavity) on implantation and clinical pregnancy rates. METHODS A total of 400 transfers guided by ultrasound were randomly assigned to two groups according to the distance between the uterine fundus and the catheter tip at the time of embryo placement. G...

Dear Sir, Coroleu et al. recently reported that the use of ultrasound guidance during embryo transfer improves pregnancy rates after IVF (Coroleu et al., 2000). In their randomized clinical trial, the pregnancy rate was 50% after ultrasound guided transfer, versus 33% after transfer using the clinical touch. Although we want to stress the importance of randomized trials to document improvements...

The aim of the study was to determine the level of awareness and acceptance of in vitro fertilization pre-embryo transfer (IVF-ET) patients for freeze-all embryo transfer, improve relevant technical specifications, and optimize treatment results based on medical experience.Questionnaires were completed by women who received in vitro fertilization embryo transfer. A total of 377 valid samples we...

OBJECTIVE To report a case of a triplet heterotopic caesarean scar pregnancy (CSP) with two gestational sacs implanted in the caesarean scar after in vitro fertilization-embryo transfer. DESIGN Case report. SETTINGS Private reproductive medicine center and obstetric department of a university hospital. PATIENT(S) A 31-year-old woman with previous caesarean section affected by secondary in...

Embryo transfer (ET) is universally recognized as the final and most critical stage in an in vitro fertilization (IVF) outcome (Neithardt et al., 2005; Ghazzawi et al., 1999). The majority of couples (approximately 80%) who undergo IVF reach the embryo transfer stage, yet few pregnancies occur (Mansour & Aboulghar, 2002; Adamson et al., 2006). Although embryo genetic abnormalities (Munne et al....

AIMS Caesarean section is the most common obstetric operation associated with short and long term risks, one of which is uterine scar dehiscence. In this case report we describe four cases of in vitro fertilization and embryo transfer (IVF+ET) treatment where the embryo was transferred into the uterus with known scar dehiscence in the lower uterine segment after a previous Caesarean section (SC...

Aim It was examined whether the single embryo transfer policy makes the treatment period longer for couples to achieve their first live birth by assisted reproductive technology. Methods This study retrospectively analyzed women who started assisted reproductive technology at younger than 40 years of age in the authors' organization. The treatment periods for couples to achieve the first live...