Výsledky vyhledávání - "R. Douglas Powers"

The impact of acupuncture on in vitro fertilization outcome

Autor: R. Douglas Powers, Joseph Kelliher, Irene Meshay, Alice D. Domar, Michael M. Alper

Publikováno v: Fertility and Sterility. 91:723-726

Objective To replicate previous research on the efficacy of acupuncture in increasing pregnancy rates (PR) in patients undergoing IVF and to determine whether such an increase was due to a placebo effect. Design Prospective, randomized, controlled, s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a98c71e73a560e09d9581cd750c20b52
https://doi.org/10.1016/j.fertnstert.2008.01.018

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Effects of Lifetime Exercise on the Outcome of In Vitro Fertilization

Autor: R Douglas Powers, Patricia M. McShane, Stacey A. Missmer, S.N. Morris, Daniel W. Cramer, Mark D. Hornstein

Publikováno v: Obstetrics & Gynecology. 108:938-945

To estimate whether exercise before the first cycle of in vitro fertilization (IVF) affects cycle outcomes.A total of 2,232 patients were prospectively enrolled before undergoing their first cycle of IVF for the treatment of infertility from 1994-200

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7b9d18f507752907b5aeb23c9248047
https://doi.org/10.1097/01.aog.0000235704.45652.0b

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Human progesterone receptor polymorphisms and implantation failure during in vitro fertilization

Autor: Mark D. Hornstein, R Douglas Powers, Pamela J. Lescault, Allison F. Vitonis, Patricia M. McShane, Immaculata De Vivo, Daniel W. Cramer

Publikováno v: American Journal of Obstetrics and Gynecology. 189:1085-1092

Polymorphic variants of the human progesterone receptor gene have been described, but their potential influence on in vitro fertilization outcome have not been studied.DNA was available from 317 women (cases) who hador=2 embryo transfers without a cl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::882ffedfb8b2c49a467569643f3ca6ac
https://doi.org/10.1067/s0002-9378(03)00517-9

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THE INTERPRETATION AND USE OF STATISTICS IN ASSISTED REPRODUCTIVE TECHNOLOGIES

Autor: R. Douglas Powers, Peter M. Martin

Publikováno v: Obstetrics and Gynecology Clinics of North America. 27:529-540

This article has discussed some of the uses and limitations of currently available statistics for ART programs. A well-known example from statistics states that flipping a coin will produce "heads" 50% of the time and "tails" 50% of the time, provide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37b8bff36be919596989a5d50f88276c
https://doi.org/10.1016/s0889-8545(05)70153-4

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A multifactorial analysis of the pregnancy outcome in a successful embryo cryopreservation program

Autor: Mary E. Schalkoff, Selwyn P. Oskowitz, R. Douglas Powers

Publikováno v: Fertility and Sterility. 59:1070-1074

Objective To determine which factor, or factors, may influence the success of an embryo-freezing program. Design Prospective. Setting An established, private IVF clinic. Patients This study comprises data from 185 consecutive thaw cycles (161 patient

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3ff4163ae268895e01566ea74a29732d
https://doi.org/10.1016/s0015-0282(16)55930-5

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Prognosis for clinical pregnancy and delivery after total fertilization failure during conventional in vitro fertilization or intracytoplasmic sperm injection

Autor: C. Brent Barrett, Donna R. Kinzer, R. Douglas Powers

Publikováno v: Fertility and sterility. 90(2)

Objective To determine the prognosis for clinical pregnancy and delivery after total fertilization failure. Design Retrospective analysis of patient treatment cycles. Setting Private fertility clinic. Patient(s) 555 couples who had total fertilizatio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76978b4553866b16c0ba2fa8037e7947
https://pubmed.ncbi.nlm.nih.gov/17714711

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Sperm morphology and in vitro fertilization outcome: a direct comparison of World Health Organization and strict criteria methodologies

Autor: R. Douglas Powers, May Y. Fung, Doria Harris, Abraham Morgentaler, Michael M. Alper

Publikováno v: Fertility and sterility. 64(6)

To perform a direct comparison of two sperm morphology methodologies with regard to IVF outcome.Blinded comparison of two methods of morphology assessment using the same morphology slides.Data were obtained from 132 couples in a consecutive series of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::447625435b18ff820f1d32e1f4f09934
https://pubmed.ncbi.nlm.nih.gov/7589673

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