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Results 151 - 200 of 945
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Ng Ernest H Y - - 2006
OBJECTIVE: To evaluate the relationship between uterine Doppler flow and endometrial and subendometrial blood flows during stimulated and natural cycles. DESIGN: A prospective observational study. SETTING: A tertiary-assisted reproduction unit. PATIENT(S): Infertile patients undergoing IVF treatment. INTERVENTIONS: A three-dimensional ultrasound examination with power Doppler was performed on the day of ...
de Souza Marco Aur?lio Martins - - 2006
OBJECTIVE: An intrauterine device (IUD) is one of the most frequently used methods of birth control around the world. Although a relationship between its use and menstrual disorders has been well documented, only a few studies have tried to show whether there are any vascular modifications. The aim of our ...
Ng Ernest Hung Yu - - 2006
OBJECTIVE: To compare endometrial and subendometrial blood flows among patients with and without hydrosalpinx (HSP) during in vitro fertilization treatment as measured by a three-dimensional power Doppler ultrasound. DESIGN: A prospective observational study. SETTING: A tertiary assisted-reproduction unit. PATIENT(S): Twenty-one patients with HSP were compared with 42 matched controls without ...
Chan Carina Chi-Wai - - 2006
The effects of two different doses of recombinant hCG on blood flow to the uterus and ovary on the day of oocyte retrieval were studied by three-dimensional Doppler ultrasonography in 60 women during IVF treatment. There were no differences in all the indices of endometrial, subendometrial, and ovarian stromal blood ...
Miyamoto Akio - - 2006
Ultrasonography (US) has been applied to the ovary and the uterus of domestic animals from the late 1980s, and established in 1990s as a practical tool for animal production. US made it possible to detect pregnancy at a very early stage and, most importantly, to observe the real-time dynamics of ...
Regnault Timothy R H - - 2006
This chapter presents experimental methods to measure in vivo uteroplacental nutrient substrate uptake, transfer to the fetus, and metabolism by the uteroplacental unit. The fundamental method involves application of the Fick principle, which requires determination of uterine and umbilical blood flow rates and measurement of nutrient substrate arterial and venous ...
Almodin C G - - 2006
OBJECTIVE: Compare the use of a newly designed and reusable metal trocar for initial uterine entry with the disposable Tulipan-Bruner trocar in creation of a hysterotomy for fetal surgery. METHODS: Six consecutive patients undergoing hysterotomy for intrauterine repair of myelomeningocele were randomized to uterine entry either with the Tulipan-Bruner trocar ...
Chen L K - - 2006
BACKGROUND: The transient effects of epidural bupivacaine 0.25-0.5% on the Doppler velocimetry of umbilical and uterine arteries had been reported, but the effects of continuous lower dose epidural bupivacaine (0.05-0.1%) infusion for labour analgesia have never been reported. In this study, we evaluated the effects of continuous epidural bupivacaine 0.075% ...
Ng Ernest Hung Yu - - 2006
BACKGROUND: No information exists in the literature regarding the factors affecting the blood flow towards the endometrial and subendometrial regions during IVF treatment. METHODS: We examined the effect of women's age, their smoking habits, their type of infertility (i.e. primary or secondary) and parity, causes of infertility and serum estradiol ...
Alvarez-Clau A - - 2005
The canine species is often used as an experimental animal model in medicine. Doppler ultrasound of uterine arteries has important clinical implications in obstetrics and gynecology in women and animal species. To our knowledge, the ultrasonographic features of uterine arteries in the bitch have not been reported. Thus, an ultrasonographic ...
Papp Z - - 2006
OBJECTIVE: To assess the outcomes of bilateral hypogastric (internal iliac) ligation performed to control intractable pelvic hemorrhage and avoid hysterectomy. METHODS: A review of indications and outcomes for 117 cases of bilateral hypogastric artery ligation over 15 years (1990-2004). RESULTS: Apart from a slight lesion to the hypogastric vein, no ...
Laschke Matthias W - - 2005
OBJECTIVE: To establish a novel endometriosis model that allows for repetitive in vivo analyses of angiogenesis in ectopic endometrial tissue. DESIGN: Intravital fluorescence microscopic study. SETTING: Institute for Clinical and Experimental Surgery, University of Saarland. ANIMAL(S): Female Syrian golden hamsters equipped with skinfold chambers. INTERVENTION(S): Large (0.5 mm2) and small ...
Vrtacnik-Bokal Eda - - 2006
OBJECTIVE: To find whether plasma and follicular prorenin concentrations have any effect on the uterine arterial blood flow in women with polycystic ovarian syndrome (PCOS) compared to those with normal menstrual cycles (NMC). STUDY DESIGN: Controlled prospective clinical study involved 55 women undergoing in vitro fertilization: 24 with PCOS and ...
Kutlar Irfan - - 2005
OBJECTIVE: The aim of the study was to assess pre-operative and post-operative serum levels of ovarian hormones and changes in utero-ovarian arterial blood flow by Doppler ultrasonography in women in whom one of three different sterilization methods was applied. STUDY DESIGN: The Pomeroy method of tubal ligation, fimbriectomy, or laparoscopic ...
Chan Carina C W - - 2005
OBJECTIVE: To investigate changes in the uterine artery and ovarian stromal blood flow in relation to the time of the day after pituitary down-regulation during in vitro fertilization treatment. METHODS: Thirteen women were recruited. The uterine artery blood flow was studied using pulsed color Doppler ultrasonography and the ovarian stromal ...
Ng Ernest Hung Yu - - 2006
BACKGROUND: A good blood supply towards the endometrium is usually considered to be an essential requirement for implantation. We aimed to evaluate the role of endometrial and subendometrial blood flows in the prediction of pregnancy during IVF treatment. METHODS: Patients undergoing the first IVF cycle were recruited. A three-dimensional (3D) ...
Chang Wen-Chun - - 2005
BACKGROUND: To define a rational guideline for the use of either laparoscopically assisted vaginal hysterectomy (LAVH) or transvaginal hysterectomy in dealing with a nonprolapsed uterus. METHODS: A total of 452 patients receiving LAVH or transvaginal hysterectomy were retrospectively studied between October 2002 and October 2004. The operative time, estimated blood ...
Carmina Enrico - - 2005
OBJECTIVE: To determine how common polycystic ovarian morphology may be in women given the clinical diagnosis of polycystic ovary syndrome (PCOS) based on chronic anovulation and hyperandrogenism and whether certain hormonal factors correlate with ovarian morphology and blood flow. DESIGN: Prospective study. SETTING: Two academic endocrinology centers in Italy. PATIENT(S): ...
Adakan Saban - - 2005
The uterine, arcuate, and intraovarian blood flow measurements by transvaginal color doppler ultrasonography on the day of hCG injection in 46 women undergoing treatment by IVF at Aegean University Family Planning and Infertility Research and Treatment Center were evaluated. In the pregnant group, average uterine and arcuate arteries blood flow ...
Lee Chao-Hsi - - 2005
OBJECTIVE: To detect possible changes in main blood vessels within leiomyomas after uterine artery ligation using color Doppler sonography. METHOD: Blood flow in main leiomyoma blood vessels was measured before and after the procedure in 14 women who also had abnormal uterine bleeding, pelvic pain or pressure, and/or anemia. RESULTS: ...
Cicinelli E - - 2005
BACKGROUND: The blood supply to the tubal corner of the uterus may originate from the uterine and ovarian arteries. The border of supply from the arteries has been found to move in young women; the change seemed dependent on ovarian steroid production. The present work investigated whether the border of ...
Stefanczyk-Krzymowska Stanislawa - - 2005
This study was designed to establish (a) whether prostaglandin E2 (PGE2) can reach the ovary and oviduct by a local pathway and what is the contribution of lymphatic vessels to this transfer, and (b) whether PGE2 can permeate from venous and lymphatic vessels of the mesometrium to arterial blood and ...
Rozewicki Stanislaw - - 2005
OBJECTIVE: Endometriosis may originate from implants of endometrium due to retrograde flow of menstrual blood. The flow may be stimulated by anatomical anomalies of uterine tubes or uterus. The aim of the study was to find links between anatomical courses of the intramural portions of the uterine tubes and endometriosis. ...
Dal Jale - - 2005
The menstrual cycle outcome of 71 regularly menstruating women was ovulatory in 60.5% of the cases, luteal phase defect in 25.3%, luteinized unruptured follicle in 11.2%, and anovulatory in 2.8%. Significantly lower resistance indices were seen in the uterine, arcuate, radial, and spiral arteries of the ovulatory group in the ...
Xavier Pedro - - 2005
OBJECTIVE: To use power Doppler ultrasound to assess the effect of endometriosis on intraendometrial and subendometrial blood flow during the menstrual cycle. DESIGN: An observational prospective study. SETTING: Academic teaching hospital. PATIENT(S): Thirty patients with histologically confirmed ovarian endometrioma and 15 control women. INTERVENTION(S): Power Doppler ultrasound examination during the ...
Ng Ernest Hung Yu - - 2005
BACKGROUND: This study evaluated the role of ovarian stromal blood flow in the prediction of the ovarian response of infertile women by comparing age of women, body mass index (BMI), basal FSH concentration, antral follicle count (AFC) and ovarian stromal blood flow indices measured by power Doppler in two-dimensional ultrasound. ...
Wranning C Almén - - 2005
BACKGROUND: Transplantation of the uterus has been suggested as a possible future treatment of absolute uterine infertility. The tolerability of human uterine tissue to cold ischaemic storage was tested in the present study. METHODS: Small tissue samples of human uteri were subjected to cold (4 degrees C) ischaemia (6 and ...
Gogarten W - - 2005
BACKGROUND AND OBJECTIVE: Epidural and spinal anaesthesia are the preferred mode of anaesthesia for Caesarean section. Volume preloading is recommended to prevent maternal hypotension and a reduction in uteroplacental blood flow, although positive effects of volume preloading on maternal cardiac output and arterial pressure are debatable. Doppler measurements of the ...
Strümper D - - 2005
BACKGROUND: Chronically compromised uterine perfusion may lead to placental insufficiency and subsequent intrauterine growth restriction (IUGR). Various therapeutic approaches (e.g. vasodilators, low-dose aspirin, intravenous glucose infusion, and hemodilution) are often of limited efficacy. Local anesthetics have been shown to improve placental blood flow in pre-eclamptic women. We hypothesized that epidural ...
Demirci F - - 2005
The aim of this study is to compare the blood flows of bilateral uterine, ovarian and arcuate arteries in patients who underwent bilateral hypogastric ligation (BHL), with the controls having similar characteristics. The S/D, the RI and the PI were measured on uterine, arcuate and ovarian arteries in 7 women ...
Hidalgo C - - 2005
Retinoids have been shown to enhance developmental competence of the oocyte in cattle, sheep and pigs. In this study we investigated whether exogenous retinol stimulates the bovine oocyte during its intrafollicular growth and the time limits of exposure to exogenous retinol. In addition, we also determined the efficiency of ovum ...
Magness Ronald R - - 2005
Oestrogen dramatically increases uterine blood flow (UBF) in ovariectomized (Ovx) ewes. Both the follicular phase and pregnancy are normal physiological states with elevated levels of circulating oestrogen. ICI 182 780 is a pure steroidal oestrogen receptor (ER) antagonist that blocks oestrogenic actions in oestrogen-responsive tissue. We hypothesized that an ER-mediated ...
Mavrou Ariadni - - 2005
This study aimed to determine whether the number of nucleated red blood cells (NRBCs) in maternal circulation during the first trimester of pregnancy could identify pregnancies that will have an anomalous Doppler in the second trimester. A total of 85 blood samples were obtained at 11-14 weeks of gestation with ...
Taylor A - - 2005
OBJECTIVES: To evaluate triple tourniquets in controlled conditions and for the first time to investigate the hypothesis that leaving a semi-permanent tourniquet around the uterine artery reduces post-operative bleeding from the uterine incisions. DESIGN: A randomised controlled trial. SETTING: Two University teaching hospitals. POPULATION: Twenty-eight patients with symptomatic fibroids and ...
Acosta Tomas J - - 2005
Increase in the blood supply to individual follicles appears to be associated with follicular growth rates and the ability to become the dominant follicle, while reduced thecal vascularity appears to be closely associated with follicular atresia. Therefore, this study aimed to determine the real-time changes in the vascularity of the ...
Yilmaz Y - - 2005
Massive ovarian oedema is an unusual clinical entity occurring in teenage girls. It is a rare tumour-like condition of the ovary characterized by marked enlargement of one or both ovaries due to marked accumulation of oedema fluid in the ovarian stroma. Massive ovarian oedema may result from partial or intermittent ...
Ikeda Tomoaki - - 2005
AIM: Profuse bleeding in placenta accreta is life-threatening even under well-prepared cesarean sections. METHODS: We used a tourniquet technique to temporally shut off blood flow through the uterine and ovarian vessels at the level of the uterine cervix. The tourniquet consisted of manual compression followed by a rubber tube. RESULTS: ...
Baskett T F - - 2005
Using a provincial perinatal database for 15 years, 1988-2002. Cases were identified with one or more of the following markers of severe maternal morbidity: blood transfusion > or = 5 units, emergency hysterectomy, uterine rupture, eclampsia, intensive care (ICU) admission. There were 159,896 mothers delivered of whom 313 (2.0/1000) had ...
Schaaps Jean-Pierre - - 2005
OBJECTIVE: It is supposed that the intervillous space is not perfused by maternal blood during the first trimester, suggesting vascular shunts in the myometrium. We therefore attempted to provide arguments for a functional vascular anastomotic network located in the placental bed during human pregnancy. STUDY DESIGN: Three-dimensional (3D) sonography, laboratory ...
Baloglu A - - 2005
Changes in serum ovarian hormone and gonadotrophine levels and ovarian artery blood flow rate by Doppler ultrasonography following laparoscopic tubal sterilization were evaluated. Forty-seven cases of laparoscopic tubal sterilization by electrocoagulation were included in the study. Forty-two women who used nonhormonal contraceptive methods were randomized as a control group. Serum ...
Gong Xuehao - - 2005
In order To evaluate whether the parameters of spiral artery blood flow, as measured by transvaginal color Doppler, may be used to assess endometrium receptivity prior to embryo transfer (ET), a retrospective study of 94 infertile women who had undergone ART treatments with different outcomes (pregnant or nonpregnant) was done. ...
Chan Carina C W - - 2005
OBJECTIVES: To investigate any change in the ovaries, including early follicular serum follicle-stimulating hormone (FSH) level, total ovarian volume, total antral follicle count, and ovarian stromal blood flow, in patients who had undergone abdominal hysterectomy for benign conditions. METHODS: Fifteen women with abdominal hysterectomy and conservation of ovaries for benign ...
Barszczewska B - - 2005
The aim of this study was to investigate the role of nitric oxide (NO) in the regulation of blood flow in the porcine uterine artery during the course of the oestrous cycle. Experiments were carried out on animals on days 1-5, 8-13 and 17-20 of the oestrous cycle. After induction ...
Lichtinger Moises - - 2005
A Doppler-guided, transvaginally applied paracervical clamp safely and effectively occluded the uterine arteries in 10 women. Following closure of the clamp, blood flow through the uterine arteries stopped; flow returned immediately upon clamp release. Average time of clamp closure was 26 minutes (range 10-59 min). No ureter was obstructed by ...
Einer-Jensen N - - 2005
Heat and substances, including gases, steroids and peptide hormones, can pass from venous blood, interstitial fluid and lymph to the arterial blood; the process is called local counter-current transfer. It has been found in various reproductive organs in many animal species and in man: from the testis to the testis ...
Ng Ernest Hung Yu - - 2005
BACKGROUND: The impact of intramural fibroids on the success of IVF treatment is controversial and the mechanisms leading to poor treatment outcomes remain unknown. We compared endometrial and subendometrial blood flow between women with and without intramural fibroids during IVF treatment. METHODS: Three-dimensional (3D) ultrasound examination with power Doppler was ...
Huissoud C - - 2004
OBJECTIVES: To determine whether the calcium blocker nifedipine alters Doppler velocimetry and impedance parameters in the uterine artery in prematurely menopausal women. METHODS: Uterine artery Doppler examinations were performed transvaginally in seventeen prematurely menopausal women without the use of calcium blocker (T0). Following a 10-mg sublingual dose of nifedipine patients ...
Cevrioglu Arif Serhan - - 2004
OBJECTIVES: To examine the changes caused by tubal sterilization (TS) in ovarian hormone secretion and uterine and ovarian circulation. DESIGN: Tubal sterilization was performed by minilaparotomy and laparoscopy methods in 36 women. Blood samples were taken for hormonal tests on Preoperative Day 3 (D3) of the menstrual cycle, on Postoperative ...
Kim Soo Woong - - 2004
PURPOSE: The effects of subphysiological and physiological levels of estradiol on vaginal blood flow and estrogen receptor were investigated. MATERIALS AND METHODS: Intact or ovariectomized female Sprague-Dawley rats were used. Two weeks after surgery rats were infused with vehicle (polyethyleneglycol), or estradiol at subphysiological (5 microg daily) or physiological (15 ...
Chaddha Vandana - - 2004
Defects in all the trophoblast-differentiating pathways--endovascular, interstitial and chorionic villous--play a role in the pathogenesis of early-onset intra-uterine growth restriction (IUGR). There are two types of extravillous trophoblast: endovascular trophoblast, that forms the definitive placenta by occlusion of the spiral arteriole at the implantation site, and interstitial extravillous trophoblast, responsible ...
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