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Uterine doppler

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https://www.readbyqxmd.com/read/28436166/perinatal-loss-at-term-the-role-of-uteroplacental-and-fetal-doppler-assessment
#1
Caitriona Monaghan, Julia Binder, Baskaran Thilaganathan, José Morales-Roselló, Asma Khalil
OBJECTIVE: To examine the association of uterine artery (UtA) Doppler indices and cerebroplacental ratio (CPR) on perinatal outcome at term. METHODS: This retrospective cohort study conducted in a single tertiary referral centre included all singleton pregnancies undergoing ultrasound assessment in the third trimester, which subsequently delivered at term. Fetal biometry and Dopplers including the umbilical artery (UA), middle cerebral artery (MCA) and uterine artery were recorded...
April 24, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28416375/automatic-and-manual-doppler-velocimetry-measurements-of-the-uterine-artery-in-pregnant-ewes
#2
Renato Travassos Beltrame, Lucas Buss Littig, Carolina Covre, Amanda de Barros Martins, Celia Raquel Quirino, R L D Costa
We aimed to compare measurements of speed and blood flow parameters obtained manually and automatically in the uterine arteries of pregnant ewes. Eighteen Santa Inês ewes, confirmed to be pregnant, were followed every 2 weeks until parturition. The systolic peak (PS), end diastolic velocity (ED), maximum and average speed in the cardiac cycle (TAMAX and TAMEAN, respectively), pulsatility index (PI), resistance index (RI) and the systole/diastole (S/D) ratio and body flow volume (BFV) was measured. We began the wave evaluation automatically, then the observer manually marked the beginning and end of the wave...
March 31, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28412995/development-and-validation-of-prediction-models-for-risks-of-complications-in-early-onset-pre-eclampsia-prep-a-prospective-cohort-study
#3
Shakila Thangaratinam, John Allotey, Nadine Marlin, Ben W Mol, Peter Von Dadelszen, Wessel Ganzevoort, Joost Akkermans, Asif Ahmed, Jane Daniels, Jon Deeks, Khaled Ismail, Ann Marie Barnard, Julie Dodds, Sally Kerry, Carl Moons, Richard D Riley, Khalid S Khan
BACKGROUND: The prognosis of early-onset pre-eclampsia (before 34 weeks' gestation) is variable. Accurate prediction of complications is required to plan appropriate management in high-risk women. OBJECTIVE: To develop and validate prediction models for outcomes in early-onset pre-eclampsia. DESIGN: Prospective cohort for model development, with validation in two external data sets. SETTING: Model development: 53 obstetric units in the UK...
April 2017: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/28409499/use-of-placental-vascularization-indices-and-uterine-artery-peak-systolic-velocity-in-early-detection-of-pregnancies-complicated-by-gestational-diabetes-chronic-or-gestational-hypertension-and-preeclampsia-at-risk
#4
Ábel T Altorjay, Andrea Surányi, Tibor Nyári, Gábor Németh
AIM: We aimed to investigate correlations between uterine artery peak systolic velocity (AUtPSV), and placental vascularization in groups of normal blood pressure (NBP) and hypertensive disorders of pregnancy (chronic hypertension (CHT), gestational hypertension (GHT) and preeclampsia (PE)) alone or in combination with gestational diabetes mellitus (GDM), and hypothesized that AUtPSV rises when GDM complicates pregnancy hypertension. METHODS: Placental 3-dimensional power Doppler indices, such as vascularization index (VI), flow index (FI), and vascularization-flow index (VFI), and uterine artery peak systolic velocity (AUtPSV) were measured in CHT (N=43), CHT+GDM (N=15), GHT (N=57), GHT+GDM (N=23) and PE (N=17) pregnancies, and compared to NBP (N=109)...
April 14, 2017: Croatian Medical Journal
https://www.readbyqxmd.com/read/28400997/congenital-uterine-arteriovenous-malformation-presenting-as-postcoital-bleeding-a-rare-presentation-of-a-rare-clinical-condition
#5
Neha Agarwal, Seema Chopra, Neelam Aggarwal, Ujjwal Gorsi
Congenital uterine arteriovenous malformation (AVM) is an extremely rare condition with <100 cases documented in literature. We report multiparous women presenting to us with a history of postcoital bleed. Initial Doppler ultrasonography was consistent with features suggestive of AVM. Subsequently, computed tomography (CT) angiography confirmed the diagnosis. Embolization was chosen as the treatment because of the large extension of AVM and the risk of hemorrhage during hysterectomy. The patient was discharged in a stable condition with a plan of repeat embolization in the next setting...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28397667/-uterine-artery-pseudoaneurysm-is-a-rare-delayed-complication-after-caesarean-section
#6
Julie Lyngsø, Janne Kainsbak, Marianne Østergård
Uterine artery pseudoaneurysm is a rare complication after caesarean section and may be the cause of acute and potentially life-threatening secondary post-partum haemorrhage. In this case report, we present the clinical presentation and management of a case of uterine artery pseudoaneurysm manifesting as delayed post-partum bleeding after caesarean section. The case report emphasizes the importance of performing Doppler-flow when diagnosing the existence of a uterine artery pseudoaneurysm ultrasonically.
January 30, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28395328/cystic-endometrial-hyperplasia-pyometra-syndrome-in-bitches-identification-of-hemodynamic-inflammatory-and-cell-proliferation-changes%C3%A2
#7
Gisele Almeida Lima Veiga, Ricardo Henrique Miziara, Daniel Souza Ramos Angrimani, Paula Carvalho Papa, Bruno Cogliati, Camila Infantosi Vannucchi
Cystic endometrial hyperplasia (CEH)-pyometra syndrome is one of the most common diseases of noncastrated female dogs. However, determination of etiological mechanisms and differential diagnosis of CEH-pyometra syndrome are undefined. The aim of this study is to compare immunohistochemically the expression of cyclooxygenase-2 (COX-2) inflammatory mediator, Ki-67 antigen proliferation marker, vascular endothelial growth factor (VEGF-A) angiogenesis mediator and its FLT-1 and KDR receptors, and correlate with Doppler velocimetry of uterine artery and endometrial vascularization in bitches with CEH-pyometra syndrome...
January 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28374437/re-impact-of-aspirin-on-trophoblastic-invasion-in-women-with-abnormal-uterine-artery-doppler-at-11-14-weeks-a-randomized-controlled-study-e-scazzocchio-d-oros-d-diaz-j-c-ramirez-m-ricart-e-meler-r-gonz%C3%A3-lez-de-ag%C3%A3-ero-e-gratacos-and-f-figueras-ultrasound-obstet
#8
https://www.readbyqxmd.com/read/28345432/utero-placental-perfusion-doppler-indices-in-growth-restricted-fetuses-effect-of-sildenafil-citrate
#9
Mohamed Adel El-Sayed, Said Abdel-Aty Saleh, Mohammad Ahmed Maher, Asmaa Mohamed Khidre
OBJECTIVE: To assess efficacy and tolerability of sildenafil citrate on utero-placental blood flow and fetal growth in pregnancies complicated by fetal growth restriction (FGR). METHODS: From March 2015, a randomized controlled trial of 54 patients at 24 weeks or more complicated by FGR and abnormal Doppler indices were randomly allocated 1:1 into an intervention arm (receive sildenafil citrate, 50 mg) or a control arm (receive placebo). The primary outcomes were changes occurred in the Doppler parameters 2 h following drug administration...
March 27, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28335685/preterm-delivery-as-a-unique-pathophysiologic-state-characterized-by-maternal-soluble-fms-like-tyrosine-kinase-1-and-uterine-artery-resistance-during-pregnancy
#10
Jennifer K Straughen, Dawn P Misra, Laura Helmkamp, Vinod K Misra
BACKGROUND: Preterm delivery (PTD) may be characterized by altered interrelationships among angiogenic factors and measures of placental function. We analyzed the longitudinal relationship between maternal serum concentrations of soluble fms-like tyrosine kinase 1 (sFlt1), an important antiangiogenic factor, and uterine artery resistance in pregnancies resulting in preterm and term deliveries. METHODS: Data were collected in a longitudinal cohort study involving 278 women monitored at 6 to 10, 10 to 14, 16 to 20, 22 to 26, and 32 to 36 weeks of gestation...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28328938/tissue-factor-pathway-inhibitor-for-prediction-of-placenta-mediated-adverse-pregnancy-outcomes-in-high-risk-women-angiopred-study
#11
Aurélie Di Bartolomeo, Céline Chauleur, Jean-Christophe Gris, Céline Chapelle, Edouard Noblot, Silvy Laporte, Tiphaine Raia-Barjat
OBJECTIVE: The study aimed to evaluate if the rate of tissue factor pathway inhibitor during pregnancy and following delivery could be a predictive factor for placenta-mediated adverse pregnancy outcomes in high-risk women. METHODS: This was a prospective multicentre cohort study of 200 patients at a high risk of occurrence or recurrence of placenta-mediated adverse pregnancy outcomes conducted between June 2008 and October 2010. Measurements of tissue factor pathway inhibitor resistance (normalized ratio) and tissue factor pathway inhibitor activity were performed for the last 72 patients at 20, 24, 28, 32, and 36 weeks of gestation and during the postpartum period...
2017: PloS One
https://www.readbyqxmd.com/read/28301988/the-influence-of-lipid-and-proinflammatory-status-on-maternal-uterine-blood-flow-in-women-with-late-onset-gestational-diabetes
#12
Fernando Bugatto, Rocío Quintero-Prado, Francisco M Visiedo, José M Vilar-Sánchez, Alejandro Figueroa-Quiñones, Cristina López-Tinoco, Rafael Torrejón, José L Bartha
BACKGROUND: Gestational diabetes mellitus (GDM) is associated with increased proinflammatory cytokines and is also associated with adverse cardiovascular disease (CVD) outcomes later in life. We aim to evaluate the relationships between uterine arteries vascularization and endothelial dysfunction markers, proinflammatory cytokines, and glycemic and lipid profile in women with GDM. METHODS: Fifty pregnant women were recruited at the third trimester of pregnancy for a prospective cohort study...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28299220/spontaneous-regression-of-uterine-arteriovenous-malformations-with-conservative-management
#13
Keiko Mekaru, Sugiko Oishi, Kozue Akamine, Chiaki Heshiki, Yoichi Aoki
Uterine arteriovenous malformation (AVM) can cause massive hemorrhage and is often treated with uterine artery embolization (UAE), which may lead to ovarian insufficiency. Thus, avoiding UAE should be considered, particularly in women undergoing fertility treatments. We present three women diagnosed with postmiscarriage AVM on color Doppler by transvaginal ultrasound imaging. They had no genital bleeding and a small mass, measuring 16-22 mm. If estradiol was >300 pg/mL when AVM was diagnosed, then a gonadotropin-releasing hormone agonist was administered...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28296829/ovarian-torsion-in-the-normal-ovary-a-diagnostic-challenge-in-postmenarchal-adolescent-girls-in-the-emergency-department
#14
Erbil Karaman, Burhan Beger, Orkun Çetin, Mehmet Melek, Yasemin Karaman
BACKGROUND Ovarian torsion can be seen in the otherwise-normal ovary and is a challenging issue in the emergency department. The aims were (1) to evaluate and compare the surgically verified ovarian torsion cases in otherwise-normal ovaries and ovaries including a mass or cyst and (2) to investigate whether the normal-appearing ovaries on ultrasound examination affected the diagnosis of ovarian torsion or not. MATERIAL AND METHODS A retrospective cohort study design was used. The medical records of all postmenarchal adolescent girls with surgically verified ovarian torsion treated in a university hospital from 2010 to 2016 were reviewed...
March 15, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28295303/separation-and-characterization-of-maternal-cardiac-and-vascular-sounds-in-the-third-trimester-of-pregnancy
#15
Diana Riknagel, Henrik Zimmermann, Richard Farlie, Dorte Hammershøi, Samuel E Schmidt, Morten Hedegaard, Peter Humaidan, Johannes J Struijk
OBJECTIVE: To characterize the vascular sounds of the uteroplacental blood flow obtained by microphones. METHODS: The present retrospective study took place in an anechoic chamber facility at Aalborg University, Aalborg, Denmark, in 2012, and included pregnant participants aged 18-40 years with a singleton pregnancy at 32-36 weeks and a parity of 0-2. Abdominal Doppler ultrasonography was performed bilaterally on the uterine arteries. Subsequently, in the same positions, sound recordings were performed with microphones...
March 13, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28277907/the-effect-of-maternal-hyperoxygenation-on-fetal-circulatory-system-in-normal-growth-and-iugr-fetuses-what-we-can-learn-from-this-impact
#16
Nizar Khatib, Israel Thaler, Ron Beloosesky, Hanin Dabaja, Nadir Ganem, Philippe Abecassis, Yuval Ginsberg, Zeev Weiner
PURPOSE: The study aims were to assess and compare the effects of maternal hyperoxygenation on fetal circulation, in fetuses with intra-uterine growth retardation and normal fetal growth. METHODS: Twelve singleton pregnant women with normal fetal growth and twelve singleton pregnant women with intrauterine growth restriction were recruited. Mean gestational age of 35.2±3.5 and 34.7±3.9 weeks respectively. Doppler blood flow velocity waveforms were obtained from the middle cerebral artery, umbilical, main and proximal right pulmonary arteries...
March 3, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28273332/comparison-between-model-predicted-tumor-oxygenation-dynamics-and-vascular-flow-related-doppler-indices
#17
Antonella Belfatto, Ailyn M Vidal Urbinati, Delia Ciardo, Dorella Franchi, Federica Cattani, Roberta Lazzari, Barbara A Jereczek-Fossa, Roberto Orecchia, Guido Baroni, Pietro Cerveri
PURPOSE: Mathematical modeling is a powerful and flexible method to investigate complex phenomena. It discloses the possibility of reproducing expensive as well as invasive experiments in a safe environment with limited costs. This makes it suitable to mimic tumor evolution and response to radiotherapy although the reliability of the results remains an issue. Complexity reduction is therefore a critical aspect in order to be able to compare model outcomes to clinical data. Among the factors affecting treatment efficacy, tumor oxygenation is known to play a key role in radiotherapy response...
March 8, 2017: Medical Physics
https://www.readbyqxmd.com/read/28268103/cesarean-scar-pregnancy-a-systematic-review
#18
REVIEW
Natalia Gonzalez, Togas Tulandi
A relatively new type of ectopic pregnancy is cesarean scar pregnancy (CSP). This is related to the increasing number of cesarean deliveries and to the advances in imaging. There are 2 types of CSP; CSP with progression to cervicoisthmic space or uterine cavity (type I, endogenic type) or with deep invasion of scar defect with progression towards bladder and abdominal cavity (type II, exogenic type). The endogenic type of CSP could result in a viable pregnancy; yet with a high risk of bleeding at the placental site...
March 4, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28264611/prevalence-and-diagnostic-accuracy-of-doppler-ultrasound-of-placenta-accreta-in-egypt
#19
Ahmed M Maged, Emad Salah, Hany Saad, Hadeer Meshaal, Ashraf Eldaly, Maha A Katta, Wesam S Deeb
OBJECTIVE: To assess the prevalence of placenta accreta among those with placenta implanted over CS scar and to evaluate the accuracy of Doppler ultrasound in diagnosis. METHODS: A cross sectional study included 100 patients with placenta previa anterior with at least one previous CS. Ultrasound and color Doppler was done to all participants and correlated with operative findings. RESULTS: There was a significant difference between accrete and non accrete group regarding maternal age (32...
March 6, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28217667/the-efficacy-of-pre-delivery-prophylactic-trans-catheter-arterial-balloon-occlusion-of-bilateral-internal-iliac-artery-in-patients-with-suspected-placental-adhesion
#20
Yoon Jin Cho, Yong Taek Oh, Suk Young Kim, Ju Young Kim, Sun Young Jung, Seung Joo Chon, Jeong Ho Kim, Sung Su Byun
OBJECTIVE: Prophylactic trans-catheter arterial balloon occlusion (PTABO) before cesarean section of placenta previa totalis has been introduced to prevent massive hemorrhage. The purpose of this study is to evaluate the clinical usefulness of PTABO in cases of suspected placental adhesion and to examine antepartal risk factors and perinatal outcomes in women with placental adhesion. METHODS: Between January 2012 and December 2015, 77 patients who had undergone ultrasonography for evaluation of placenta previa were enrolled in this study...
January 2017: Obstetrics & Gynecology Science
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