Aim The Japan Society of Obstetrics and Gynecology implemented a registry report system for the clinical practice of assisted reproductive technology in 1986. The aggregated results from 1992 to 2014 are reported herein. Methods and Results The total number of registered treatments was 393 745 cycles, of which 66 550 were pregnancy cycles and 46 008 were cycles with a live birth. Compared to ...

AIMS To estimate the risk of congenital heart defects (CHD) associated with assisted reproductive technologies (ART). METHODS AND RESULTS We used data from the Paris Registry of Congenital Malformations on 5493 cases of CHD and 3847 malformed controls for which no associations with ART were reported in the literature. Assisted reproductive technologies included inductors of ovulation only, in...

the rate of multiple pregnancy has dramatically increased during the past decades, along with the diffusion of assisted reproduction technology (art). multiple pregnancy entail an increased risk of, at times life threatening, maternal complications i.e. pre-eclampsia, eclampsia or abruptio placenta, of serious neonatal hazards, i.e. extreme prematurity or growth retardation, as well as deleteri...

OBJECTIVE To compare obstetrical and neonatal outcomes of twin pregnancies conceived via assisted reproductive technology (ART) with those of naturally conceived ones and to investigate the influence of the ART procedure type on these parameters. PATIENTS AND METHODS This observational study included 450 ART and 647 spontaneous twin pregnancies delivered over 15 years at a single university-b...

Heterotopic pregnancy occurs when intrauterine and ectopic pregnancy are concomitant; overall rate rises from 1/30.000 to 1.5/1000 in assisted reproductive technology pregnancies. HIV (human immunodeficiency virus) patients are at increased risk of heterotopic pregnancies due to the greater frequency of assisted reproductive technology and pelvic inflammatory disease. We report the first case o...

Aim To evaluate the use of frozen embryos on the outcome of assisted reproductive technology (ART), a retrospective study of the Japanese Assisted Reproductive Technology Registry data during the years 2007-2012 was conducted. Methods A total of 124 946 singleton neonates who reached term gestation following ART from 2007-2012, with 80 660 achieved through frozen-thawed embryo transfer (ET) a...