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placent previa

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https://www.readbyqxmd.com/read/29747968/prenatal-diagnosis-of-abnormal-invasive-placenta-by-ultrasound-measurement-of-highest-peak-systolic-velocity-of-subplacental-blood-flow
#1
Junling Zhang, Hezhou Li, Fang Wang, Hongyan Qin, Qiaohong Qin
The aim of the study described here was to identify an efficient criterion for the prenatal diagnosis of abnormal invasive placenta. We evaluated 129 women with anterior placenta previa who underwent trans-abdominal ultrasound evaluation in the third trimester. Spectral Doppler ultrasonography was performed to assess the subplacental blood flow of the anterior lower uterine segment by measuring the highest peak systolic velocity and resistive index. These patients were prospectively followed until delivery and evaluated for abnormal placental invasion...
May 7, 2018: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29747267/-application-of-uterine-lower-part-breakwater-like-suture-operation-in-placenta-previa
#2
Y Zhao, J W Zhu, D Wu, Q H Wang, S S Lu, X X Liu, L Zou
Objective: To explore the efficacy and safety of uterine lower posterior wall breakwater-like suture technique in controlling the intraoperative bleeding of placenta previa. Methods: From June 2016 to June 2017, 47 patients were diagnosed placenta previa in Union Hospital, Tongji Medical College of Huazhong University of Science and Technology. Posterior wall breakwater-like suture technique was used preferentially, as for cases with poor myometrium layer, lower anterior wall stitch suture was used at the same time...
April 25, 2018: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/29692677/comparative-study-of-obstetric-and-neonatal-outcomes-of-live-births-between-poor-and-good-quality-embryo-transfers
#3
Kozue Akamine, Keiko Mekaru, Keiya Gibo, Chinatsu Nagata, Sugiko Oishi, Maho Miyagi, Chiaki Heshiki, Tadatugu Kinjo, Hitoshi Masamoto, Yoichi Aoki
Purpose: To evaluate the effect of embryo quality on pregnancy outcomes. Methods: This retrospective analysis included 80 live singleton births, resulting from morphologically good-quality embryo transfers, and 25 live singleton births that resulted from morphologically poor-quality embryo transfers between January, 2008 and December, 2014. Cleavage embryos that were graded as ≥2, according to the Veeck classification system, and blastocysts that were graded as ≥3BB, according to the Gardner classification system, were defined as good quality...
April 2018: Reproductive Medicine and Biology
https://www.readbyqxmd.com/read/29686936/complete-placenta-previa-ultrasound-biometry-and-surgical-outcomes
#4
Alison C Wortman, Stephanie L Schaefer, Donald D McIntire, Jeanne S Sheffield, Diane M Twickler
Objective  To evaluate the relationship between surgical outcomes and ultrasound measurement of placental extension beyond the cervical os in women with placenta previa. Study Design  This is a retrospective cohort study of singleton pregnancies with placenta previa undergoing third-trimester ultrasound and delivering at our institution from 2002 through 2011. For study purposes, an investigator measured placental extension, defined as the placental distance from the internal os across the placenta continuing out to the lowest placental edge...
April 2018: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/29662708/emergency-peripartum-hysterectomy-in-the-dubai-health-system-a-fifteen-year-experience
#5
Muna Abdulrazzaq Tahlak, Mahera Abdulrahman, Nawal Mahmood Hubaishi, Mushtaq Omar, Fatima Cherifi, Shazia Magray, Frederick Robert Carrick
Objective: To determine the incidence, demographic data, risk factors, indications, outcome and complications of emergency peripartum hysterectomy (EPH) performed in two major tertiary care hospitals in Dubai, and to compare the results with the literature. Materials and Methods: The records of all women who underwent EPH from January 2000 to December 2015 in two major tertiary care hospitals in Dubai were accessed and reviewed. Maternal characteristics, hysterectomy indications, outcomes, and postoperative complications were recorded using descriptive statistics to describe the cohort...
March 2018: Turkish Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29602980/placenta-previa-and-placental-abruption-after-assisted-reproductive-technology-in-patients-with-endometriosis-a-systematic-review-and-meta-analysis
#6
Maria Luisa Gasparri, Konstantinos Nirgianakis, Katayoun Taghavi, Andrea Papadia, Michael D Mueller
INTRODUCTION: Recent evidence suggests that assisted reproductive technology (ART) increases the risk of adverse pregnancy outcomes, including placental disorders. Similarly, endometriosis resulted detrimental on placenta previa. However, up to 50% of women with endometriosis suffer from infertility, thus requiring ART. The aim of our metanalysis is to compare women with and without endometriosis undergoing ART in terms of placenta disorders events, to establish if ART itself or endometriosis, as an indication to ART, increases the risk of placenta previa...
March 30, 2018: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29540895/emergency-peripartum-hysterectomy-a-retrospective-study-in-a-tertiary-care-hospital-in-turkey-from-2007-to-2015
#7
Dilek Uysal, Hakan Cokmez, Cetin Aydin, Tolga Ciftpinar
Postpartum haemorrhage is the most important cause of maternal morbidity and mortality, especially when all conservative measures, including syntometrine oxytocin and Bakri balloons have failed to accomplish haemostasis and expeditious surgical procedures, such as uterine artery ligation and emergency peripartum hysterectomy (EPH) are required. This retrospective study analysed 31 cases of EPH performed between January 2007 and January 2016 in the Department of Gynecology and Obstetrics of Izmir Ataturk Teaching and Research Hospital...
March 2018: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/29532529/diagnostic-accuracy-of-first-trimester-ultrasound-in-detecting-abnormally-invasive-placenta-in-high-risk-women-with-placenta-previa
#8
REVIEW
Giuseppe Cali, Francesco Forlani, Francesca Foti, Gabriella Minneci, Lamberto Manzoli, Maria Elena Flacco, Danilo Buca, Marco Liberati, Giovanni Scambia, Francesco D'Antonio
OBJECTIVES: To ascertain the diagnostic accuracy of ultrasound in detecting AIP during the first trimester (11-14 weeks of gestation) of pregnancy in women at risk of these conditions. METHODS: Retrospective analysis on prospectively collected data on women at risk for AIP based upon the presence of at least one prior CS and/or uterine surgery and placenta previa who had an ultrasound assessment for AIP since the 11-14 weeks scan. The ultrasound signs explored in the present study were: loss of clear zone, placental lacunae, bladder wall interruption, uterovescical hypervascularity...
March 13, 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29486851/placental-pathologic-changes-and-perinatal-outcomes-in-placenta-previa
#9
Eun Jung Jung, Hwa Jin Cho, Jung Mi Byun, Dae Hoon Jeong, Kyung Bok Lee, Moon Su Sung, Ki Tae Kim, Young Nam Kim
INTRODUCTION: Placenta previa is a condition in which the placenta implants in the poorly vascularized lower uterine segment, which may result in inadequate uteroplacental perfusion, in turn, adversely affect the neonatal outcome. Abnormal placentation may also lead to severe postpartum hemorrhage as placenta separation proceeds. We aimed to evaluate the differences in placental histopathology and perinatal outcomes in pregnancies complicated with placenta previa and controls. METHOD: We undertook a retrospective case-control study of 93 pregnancies with placenta previa and 81 controls between 2011 and 2017...
March 2018: Placenta
https://www.readbyqxmd.com/read/29469945/extravillous-trophoblast-invasion-in-placenta-accreta-is-associated-with-differential-local-expression-of-angiogenic-and-growth-factors-a-cross-sectional-study
#10
C M Duzyj, I A Buhimschi, C A Laky, G Cozzini, G Zhao, M Wehrum, C S Buhimschi
OBJECTIVE: Placenta accreta is clinically associated with maternal uterine scar. Our objective was to investigate the biochemical contribution of maternal scarring to hyperinvasive trophoblast. We hypothesised that trophoblast over-invasion in placenta accreta is associated with aberrant invasion-site signalling of growth and angiogenic factors known to be involved in wound healing and promotion of cell invasion through the epithelial to mesenchymal cellular programme. DESIGN: Cross-sectional series...
February 22, 2018: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29438480/human-trophoblast-epithelial-mesenchymal-transition-in-abnormally-invasive-placenta
#11
Sonia DaSilva-Arnold, Stacy Zamudio, Abdulla Al-Khan, Jesus Alvarez-Perez, Ciaran Mannion, Christopher Koenig, Davlyn Luke, Anisha Perez, Margaret Petroff, Manuel Alvarez, Nicholas P Illsley
Differentiation of first trimester human placental cytotrophoblast from an anchorage-dependent epithelial phenotype into the mesenchymal-like invasive extravillous trophoblast is crucial in the development of the maternal-fetal interface. We showed previously that differentiation of first trimester cytotrophoblast to extravillous trophoblast involves an epithelial-mesenchymal transition (EMT). Here we compare the epithelial-mesenchymal characteristics of cytotrophoblast (CTB) and extravillous trophoblast (EVT) derived from normal third trimester placenta or placenta previa versus abnormally invasive placenta (AIP)...
February 9, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29409879/soluble-flt-1-rules-placental-destiny
#12
Michiko Yamashita, Keiichi Kumasawa, Hitomi Nakamura, Tadashi Kimura
INTRODUCTION: Placenta previa is an abnormality in which the placenta covers the internal uterine os, and it can cause serious morbidity and mortality in both mother and fetus due to catastrophic hemorrhage. Some pregnant women recover from placenta previa due to a phenomenon called "migration." However, the mechanism of "migration" of the placenta has not been elucidated. METHODS: Human placentas were collected from patients with placenta previa and those with no abnormal placentation (control)...
February 19, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29399861/resolution-of-a-low-lying-placenta-and-placenta-previa-diagnosed-at-the-midtrimester-anatomy-scan
#13
Jennifer K Durst, Methodius G Tuuli, Lorene A Temming, Owen Hamilton, Jeffrey M Dicke
OBJECTIVES: To identify the incidence and resolution rates of a low-lying placenta or placenta previa and to assess the optimal time to perform follow-up ultrasonography (US) to assess for resolution. METHODS: We conducted a retrospective cohort study of women with a diagnosis of a low-lying placenta or placenta previa at routine anatomic screening. Follow-up US examinations were reviewed to estimate the proportion of women who had resolution. A Kaplan-Meier survival curve was generated to estimate the median time to resolution...
February 5, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29371827/case-of-heterotopic-cervical-pregnancy-and-total-placenta-accreta-after-artificial-cycle-frozen-thawed-embryo-transfer
#14
Kazuki Saito, Maki Fukami, Mami Miyado, Ichiro Ono, Keijiro Sumori
Case: A 39-year-old woman presented with a genital hemorrhage at 5 weeks of gestation after an artificial cycle double frozen-thawed embryo transfer. She was diagnosed with a cervical heterotopic pregnancy. Although hormone supplementation was discontinued to terminate the pregnancy at 5 weeks of gestation, the intrauterine and cervical gestational sacs continued to develop. Outcome: The cervical gestational sac was surgically removed and the intrauterine pregnancy continued uneventfully, except for vasa previa...
January 2018: Reproductive Medicine and Biology
https://www.readbyqxmd.com/read/29360829/long-term-risks-and-benefits-associated-with-cesarean-delivery-for-mother-baby-and-subsequent-pregnancies-systematic-review-and-meta-analysis
#15
Oonagh E Keag, Jane E Norman, Sarah J Stock
BACKGROUND: Cesarean birth rates continue to rise worldwide with recent (2016) reported rates of 24.5% in Western Europe, 32% in North America, and 41% in South America. The objective of this systematic review is to describe the long-term risks and benefits of cesarean delivery for mother, baby, and subsequent pregnancies. The primary maternal outcome was pelvic floor dysfunction, the primary baby outcome was asthma, and the primary subsequent pregnancy outcome was perinatal death. METHODS AND FINDINGS: Medline, Embase, Cochrane, and Cumulative Index to Nursing and Allied Health Literature (CINAHL) databases were systematically searched for published studies in human subjects (last search 25 May 2017), supplemented by manual searches...
January 2018: PLoS Medicine
https://www.readbyqxmd.com/read/29353034/impact-of-targeted-scanning-protocols-on-perinatal-outcomes-in-pregnancies-at-risk-of-placenta-accreta-spectrum-or-vasa-previa
#16
Yaakov Melcer, Eric Jauniaux, Shlomit Maymon, Anna Tsviban, Marina Pekar-Zlotin, Moshe Betser, Ron Maymon
BACKGROUND: Placenta accreta spectrum and vasa previa (VP) are congenital disorders of placentation associated with high morbidity and mortality for both mothers and newborns when undiagnosed before delivery. Prenatal diagnosis of these conditions is essential to allow multidisciplinary management and thus improve perinatal outcomes. OBJECTIVE: The objective of the study was to compare perinatal outcome in women with placenta accreta spectrum or vasa previa before and after implementation of targeted scanning protocols...
April 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29331236/pregnancy-related-complications-and-perinatal-outcomes-resulting-from-transfer-of-cryopreserved-versus-fresh-embryos-in-vitro-fertilization-a-meta-analysis
#17
Tingting Sha, Xunqiang Yin, Wenwei Cheng, Isaac Yaw Massey
OBJECTIVE: To provide an updated comparison of pregnancy-related complications and adverse perinatal outcomes of pregnancies conceived after frozen embryo transfer (FET) versus fresh embryo transfer (fresh ET). DESIGN: Meta-analysis. SETTING: University. PATIENT(S): Pregnancies resulting from FET versus fresh ET. INTERVENTIONS(S): Pubmed, Embase, Cochrane Library, Google Scholar, and Chinese databases, including the China National Knowledge Infrastructure Database, Wanfang, and Chinese Scientific Journals Full-Text Database were searched by two independent reviewers from January 1980 to September 2017...
February 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29320992/caesarean-delivery-related-blood-transfusion-correlates-in-a-tertiary-hospital-in-southwest-nigeria
#18
Fatimat M Akinlusi, Kabiru A Rabiu, Idayat A Durojaiye, Adeniyi A Adewunmi, Tawaqualit A Ottun, Yusuf A Oshodi
BACKGROUND: Caesarean delivery carries a risk of major intra-operative blood loss and its performance is often delayed by non-availability of blood and blood products. Unnecessary cross-matching and reservation of blood lead to apparent scarcity in centres with limited supply. This study set out to identify the risk factors for blood transfusion in women who underwent caesarean delivery at a tertiary obstetric unit with a view to ensuring efficient blood utilization. METHODS: A prospective cohort analysis of 906 women who had caesarean deliveries at the Lagos State University Teaching Hospital, Nigeria between January and December, 2011...
January 10, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29297951/study-of-the-utility-and-problems-of-common-iliac-artery-balloon-occlusion-for-placenta-previa-with-accreta
#19
Yoshihisa Ono, Yoshihiko Murayama, Sumiko Era, Shigetaka Matsunaga, Tomonori Nagai, Hisato Osada, Yasushi Takai, Kazunori Baba, Satoru Takeda, Hiroyuki Seki
AIMS: We investigated whether common iliac artery balloon occlusion (CIABO) was effective for decreasing blood loss during cesarean hysterectomy (CH) in patients with placenta previa with accreta and was safe for mothers and fetuses. METHODS: Of the 67 patients who underwent CH for placenta previa with accreta at our facility from 1985 to 2014, 57 patients were eligible for the study. The amount of intraoperative bleeding during CH was compared between three groups: surgery without blood flow occlusion (13 patients), internal iliac artery ligation (15 patients) and CIABO (29 patients)...
March 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29288322/bedside-risk-estimation-of-morbidly-adherent-placenta-using-simple-calculator
#20
R Maymon, Y Melcer, M Pekar-Zlotin, O Shaked, H Cuckle, J Tovbin
PURPOSE: To construct a calculator for 'bedside' estimation of morbidly adherent placenta (MAP) risk based on ultrasound (US) findings. MATERIALS AND METHODS: This retrospective study included all pregnant women with at least one previous cesarean delivery attending in our US unit between December 2013 and January 2017. The examination was based on a scoring system which determines the probability for MAP. RESULTS: The study population included 471 pregnant women, and 41 of whom (8...
March 2018: Archives of Gynecology and Obstetrics
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