The objective of this study was to assess the reproductive competence of oocytes obtained by follicular flushing in poor responder patients. This prospective comparative study, at the University of Paris XI, Assistance Publique des Hopitaux de Paris, INSERM Unit 782, was performed on 165 infertile IVF embryo transfer candidates. A total of 271 consecutive minimal stimulation IVF cycles were studied. Oocyte retrieval was performed 34 h after human chorionic gonadotrophin administration and oocytes were allocated into two groups according to their retrieval method: oocytes obtained in the first follicular aspiration (FA, n = 127); and oocytes retrieved in the subsequent follicular flushing (FF, n = 102). The principal outcome was to evaluate clinical pregnancy and embryo implantation rates. Thus, patient characteristics, fertilization rate and clinical pregnancy rate per oocyte were comparable in both of groups. In contrast, embryo morphology (41 versus 59%, P < 0.01) and implantation rates (20.4 versus 34.8%, P < 0.04) were better in the FF group. In conclusion, an optimal reproductive competence was observed in oocytes retrieved by follicular flushing in minimal stimulation IVF in poor responder patients.
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http://dx.doi.org/10.1016/s1472-6483(10)60564-0 | DOI Listing |
Taiwan J Obstet Gynecol
January 2025
Reproductive Medicine Center, Department of Obstetrics and Gynecology, Changhua Christian Hospital, Changhua, Taiwan; Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan. Electronic address:
Objective: To evaluate the effectiveness of oocyte retrieval using a single-lumen aspiration needle compared to a double-lumen aspiration needle in IVF (in vitro fertilization) patients.
Materials And Methods: This retrospective cohort study included all IVF cycles between 1st January, 2020 and 31st December, 2022 in Changhua Christian Hospital, Taiwan. Pairwise comparisons were conducted through propensity score matching analysis at a 1:3 ratio according to patients' age, anti-Müllerian hormone levels, and body weight.
Reprod Fertil Dev
November 2024
Women's Centre, John Radcliffe Hospital, Oxford University Hospitals, Headington OX3 9DU, UK; and Department of Obstetrics and Gynaecology, University of Melbourne, Parkville, Melbourne, Vic 3010, Australia.
Context The number of developmentally competent cumulus-oocyte complexes (COCs) retrieved during Ovum Pick-Up (OPU) determines success in both bovine and human assisted reproduction. Follicular flushing for COC retrieval is practicsed widely in humans but not in cattle. Aims To determine the benefits of follicular flushing in cattle and assess the merits of a novel 16G double-lumen needle ('OxIVF') that flushes laterally to the needle shaft.
View Article and Find Full Text PDFFront Vet Sci
October 2024
Animal Reproduction Division, ICAR-Indian Veterinary Research Institute (ICAR-IVRI), Bareilly, India.
The study aimed to evaluate the effect of antral follicle count (AFC) on follicular and luteal development during the estrous cycle and superovulatory period, as well as on superovulatory response and embryo quality within the MOET program. A total of 48 estrus-induced (500 μg PGF2α, Single dose, IM) Sahiwal cows () with a BCS between 3.5 and 4.
View Article and Find Full Text PDFOpen Vet J
August 2024
Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
Background: Commercial embryo flushing of horses has required hormonal management of both the donor and recipient mares throughout the breeding season.
Aim: This study aimed to find out the effect of using human chorionic gonadotropin (hCG) and prostaglandin F2α (PG) on the ovarian and uterine dynamics and hemodynamics, estradiol (E2), progesterone, oxidants-antioxidants, and blood biochemicals in embryo donor mares during the hottest months of the year in a subtropical climate.
Methods: Three Control estrous cycles of native mares (10-20 years; = 10) followed by two treated cycles with hCG and PGF2α were examined daily from May to August using Doppler ultrasound with blood sampling.
N Z Vet J
November 2024
Department of Conservation, Auckland, New Zealand.
Case History: In 2023, the New Zealand Department of Conservation seized 63 endemic reptiles that were being held without a permit. This group included three adult female West Coast green geckos ( that had been illegally removed from the wild 2 years earlier. They had been held in an outdoor enclosure with a pair of goldstripe geckos ().
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