Objectives were to characterize changes in concentrations of LH, FSH, and estradiol-17beta (estradiol) in blood and populations of ovarian follicles of prepubertal cattle during waves of follicular development and to evaluate interactions between day after follicular aspiration and month prepuberty for these variables. During each month (month prepuberty), ovarian follicles of prepubertal cattl...

Follicular re-aspiration yielded similar oocyte recovery compared to direct aspiration (RR: 0.7; 95% CI: −0.9, 2.4; p=0.38), but entailed a longer procedure time (180 seconds; p<0.001) among low responding patients. A randomized comparison trial was performed to evaluate whether follicular re-aspiration using a double-lumen retrieval needle improves oocyte recovery when compared to direct folli...

ovarian hyperstimulation syndrome (ohss) is a unique iatrogenic complication of controlled ovarian stimulation (coh)/in vitro fertilization (ivf) in reproductive endocrinology occurring during the luteal phase or early pregnancy. it can have a serious impact on the patient�s health. with the expansion of the assisted reproductive techniques (art) from 1978, the incidence of ohss is increasing w...

To elucidate the effects of ultrasound-guided transvaginal follicular aspiration, plasma concentrations of FSH, LH, inhibin, estradiol-17beta and progesterone, and folliculogenesis were examined in Holstein cows. Four clinically healthy cows with regular estrous cycles were scanned by ultrasound per rectum once a week for 9 weeks before the commencement of follicular aspiration. All visible fol...

BACKGROUND Ultrasound guided transvaginal aspiration of oocytes has replaced other methods of oocyte retrieval for in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI). However, there is controversy over whether flushing yields a larger number of oocytes and a higher potential for pregnancy than aspiration only. OBJECTIVES To determine whether follicular aspiration and flu...

OBJECTIVE We wanted to evaluate the degree of conformity of papillary carcinoma and follicular carcinoma to the reported ultrasonographic findings of malignant thyroid tumor. MATERIALS AND METHODS Between January 2003 and December 2004, fine needle aspiration biopsy was performed in 1,036 patients with palpable and nonpalpable thyroid lesions. We retrospectively reviewed the ultrasonographic ...

This experiment was performed to clarify relationships between conditions of bovine ovaries and developmental capacity of the follicular oocytes recovered from them and to compare two methods of oocyte collection, aspiration and mincing. Follicular oocytes with surrounding intact, unexpanded cumulus recovered by follicular aspiration or by mincing of tissue from 24 pairs of ovaries were matured...