Results 321 to 330 of about 1,077,944 (364)

Age and pregnancy rates in in vitro fertilization

Journal of In Vitro Fertilization and Embryo Transfer, 1991
The influence of women's age on the results of in vitro fertilization (IVF) was analyzed in 1801 women undergoing the procedure. Advancing age was found to be related to significant reduced success rates from an average of 30.1% per transfer below the age of 36 years to 15.9% per transfer at 37 years or more (P less than 0.001).
D, Dicker, J A, Goldman, J, Ashkenazi, D, Feldberg, M, Shelef, T, Levy   +5 more
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GnRHa flare and IVF pregnancy rates

International Journal of Gynecology & Obstetrics, 2003
AbstractObjectives: GnRH agonist administered early in the menstrual cycle (flare) causes an endogenous discharge of FSH and LH. Flare has been used in conjunction with gonadotropin ovarian stimulation for IVF ‘poor responders’. There is an ongoing controversy regarding whether flare protocols improve pregnancy rates in ‘poor responders’.
E, Confino, X, Zhang, R R, Kazer
openaire   +2 more sources

Obesity and lower teenage pregnancy rates

BMJ, 2014
It seems heartening that unplanned conception and pregnancy rates in teenagers are decreasing in England,1 New Zealand,2 and the United States.3 However, we should be cautious in thinking that our social programmes and availability of new family planning technologies are the only solutions to this problem.
openaire   +2 more sources

Transmyometrial oocyte retrieval and pregnancy rates

Fertility and Sterility, 2002
To determine whether transvaginal, ultrasound-guided oocyte retrieval performed through the myometrium has a negative impact on IVF pregnancy rates.Retrospective cohort study.Academic hospital and research center.A total of 5,115 IVF cycles performed at the Brigham and Women's Hospital between 1998 and 2001 were evaluated.
Lynn Bentley, Davis, Elizabeth Sarah, Ginsburg   +1 more
openaire   +2 more sources

Pregnancy rates after laparoscopy for infertility

European Journal of Obstetrics & Gynecology and Reproductive Biology, 1984
To obtain prognostic data on the likelihood of pregnancy in infertile women with no observable abnormalities at diagnostic laparoscopy, the occurrence of pregnancy was studied in a series of 229 patients. The cumulative conception rate during a follow-up period of at most 5 yr was 50%.
G C, Trimbos-Kemper, J B, Trimbos, E V, van Hall   +2 more
openaire   +2 more sources

Pregnancy Rates after Testicular Torsion

Journal of Urology, 2016
To our knowledge the effect of testicular torsion on the pregnancy rate is unknown. In this study we focused on the pregnancy rate, which is the ultimate index of fertility status.We reviewed the records of 273 patients who presented to our emergency room with testicular torsion between 1994 and 2014.
Ilan, Gielchinsky, Efrat, Suraqui, Guy, Hidas, Mohammad, Zuaiter, Ezekial H, Landau, Alexander, Simon, Mordechai, Duvdevani, Ofer N, Gofrit, Dov, Pode, Shilo, Rosenberg   +9 more
openaire   +2 more sources

Pregnancy loss rate in equine uterine body pregnancies

Equine Veterinary Education, 2005
There is scant information on the outcome of uterine body pregnancies in the mare, but anecdotal evidence indicates that most result in abortion. In a retrospective study of 3527 pathology records from the Livestock Disease and Diagnostic Center, University of Kentucky, 10 aborted fetuses were associated with body pregnancies.
M. L. Jobert, M. M. LeBlanc, S. W. Pierce   +2 more
openaire   +1 more source

Strategies to Increase Pregnancy Rates

American Association of Bovine Practitioners Conference Proceedings, 1999
To achieve a timely first-service conception rate, dairymen must have an efficient method of heat detection. It is difficult to precisely control time to first service based on spontaneous expression and detection of estrous behavior on a herd basis. The most efficient way to reduce days open would be to reduce the number of missed heats and increase ...
Drost, M., Risco, C. A., Thatcher, W. W.
openaire   +1 more source

A hypothesis on the increasing rates of ectopic pregnancy

Paediatric and Perinatal Epidemiology, 1989
Summary. Rates of ectopic pregnancy have been increasing in the developed world in recent decades. The cause of this increase is not established. There is evidence that women with ectopic pregnancies have low oestrogen levels and that tubal contractions are under oestrogenic control. Low diets and vigorous exercise both lower women's oestrogen levels.
openaire   +2 more sources

Rates of pregnancy outcomes in France

BJOG: An International Journal of Obstetrics & Gynaecology, 1994
E, Couturier, Y, Obadia, D, Rey, J B, Brunet   +3 more
openaire   +2 more sources