BACKGROUND Serum biochemical markers [free betahCG (fbetahCG); pregnancy-associated plasma protein-A (PAPP-A)] used in first trimester Down's syndrome screening have not been fully investigated in pregnancies achieved by assisted reproduction techniques. We present data on pregnancies conceived by all types of assisted reproduction techniques, including pregnancies following ovum donation (OD) ...

BACKGROUND An efficient oocyte cryopreservation method is mandatory to establish a successful egg-banking programme. Although there are increasing reports showing good clinical outcomes after oocyte cryopreservation, there is still a lack of large controlled studies evaluating the effectiveness of oocyte cryo-banking. In this study, we aimed to compare the outcome of vitrified-banked oocytes wi...

Pregnancies achieved from oocyte, sperm or embryo donation are unique, since they have resulted from donor gametes that are immunologically foreign to the mother. Thus, studying the obstetric outcome of such pregnancies may shed some light on the pathophysiology of preeclampsia, particularly in women conceiving with donated embryos, since the entire fetal genome is allogenic in these pregnancie...

Pregnancy was successfully established in an agonadal woman using donated oocytes and in vitro fertilization. The oocyte donor had previously failed to provide an in vivo fertilized pre-embryo to the infertile couple despite several attempts at uterine lavage. Mark V. Sauer, MD, Women’s Hospital, Room L-946, 1240 North Mission Road, Los Angeles, CA 90033 (USA) Introduction Successful impregnati...

Spontaneous abortion (SAb) is the most common complication of early pregnancy. Numerous risk factors are associated with an increased risk of pregnancy loss such as: Blighted ovum. The aim of this study was to determine the frequency of balanced chromosomal translocations in couples with a history of recurrent spontaneous abortions and ultrasound diagnosed blighted ovum. Sixty Eight couples wit...

condition?inflammatory or otherwise?interfering with the passage of the ovum along the tube and into the uterus ; and (2) some anomaly in the fertilised ovum, such as early disappearance of the corona radiata, favouring its immediate embedding in the uterine tube. The commonest site in which the ovum may become implanted is the ampulla, the widest part of the tube ; and this is accompanied by a...

of lectures on the above subject. The importance of the subject warrants the following abstract : Causation? Every pregnancy is the result of the impregnation of the ovum of the female by the spermatozoon of the male, and the normal place for the development of the impregnated ovum is the cavity of the uterus, while the channel through which the ovum must pass from the ovary in order to gain th...