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preterm births

Krystin A Engelhardt, Elizabeth Hisle-Gorman, Gregory H Gorman, Nicole R Dobson
Background: The Military Health System (MHS) provides universal access to medical care to active duty service members, retirees, and their dependents. Observational data from small studies suggest lower preterm birth rates in the MHS compared with U.S. national averages. The objectives of this study are to determine the rate of preterm birth in the MHS from 2006 to 2012 compared with national rates and to analyze the impact of demographic factors on preterm birth in a universal access health care system...
March 14, 2018: Military Medicine
Rada M Savic, Prasanna Jagannathan, Richard Kajubi, Liusheng Huang, Nan Zhang, Moses Were, Abel Kakuru, Mary K Muhindo, Norah Mwebaza, Erika Wallender, Tamara D Clark, Bishop Opira, Moses Kamya, Diane V Havlir, Philip J Rosenthal, Grant Dorsey, Francesca T Aweeka
Background: Dihydroartemsinin-piperaquine is highly efficacious as intermittent preventive therapy for malaria during pregnancy (IPTp). Determining associations between piperaquine exposure, malaria risk, and adverse birth outcomes informs optimal dosing strategies. Methods: HIV-uninfected pregnant women were enrolled in a placebo-controlled trial of IPTp at 12-20 weeks gestation and randomized to: sulfadoxine-pyrimethamine every 8 weeks (n=106), dihydroartemsinin-piperaquine every 8 weeks (n=94), or dihydroartemsinin-piperaquine every 4 weeks (n=100) during pregnancy...
March 14, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Ramiro Manzano Núñez, James Alejandro Zapata, Herney A García-Perdomo, Diego A Gomez, Mónica A Solís Velasco
INTRODUCTION: Few reports are available about perinatal dengue, with controversial results in regards the risk of perinatal outcome. OBJECTIVE: To report a case of perinatal dengue as a differential diagno sis with neonatal sepsis, which must be considered in endemic areas. CLINICAL CASE: Male newborn of a 23 year-old female, who presented a Non-Structural Protein 1 (NS1) antigen positive to dengue at 36 weeks of gestation and negative anti-dengue antibodies...
December 2017: Revista Chilena de Pediatría
M Baraa Allaf, Maria Andrikopoulou, Natalie Crnosija, Jolene Muscat, Martin R Chavez, Anthony M Vintzileos
OBJECTIVES: To determine the feasibility in visualizing placental cord insertion (PCI) during second-trimester fetal anatomical survey and the association between marginal cord insertion (MCI) and preterm delivery (PTD) and low birth weight (LBW). Our secondary objectives were to evaluate the association of MCI with adverse composite obstetrical and neonatal outcomes. METHODS: A prospective cohort study was performed over a 28-month period. Women with singleton pregnancies presenting for routine anatomical survey between 18-22 weeks' gestation were included...
March 16, 2018: Journal of Maternal-fetal & Neonatal Medicine
Jildou Hoekstra, Aafke H C van Roon, Frank C Bekkering, Antonie J P van Tilburg, Rachel L West
INTRODUCTION: The aim of this study was to evaluate information provided on pregnancy, personal decision making, disease course, and outcome of pregnancy from a patient's perspective in a population of patients with inflammatory bowel disease (IBD) attending two general hospitals. PATIENTS AND METHODS: A questionnaire was sent to all female patients with IBD in two general hospitals in the Netherlands. The questionnaire comprised four sections: (i) demographic data and medication use (ii) details on previous pregnancies and reasons for not becoming pregnant, (iii) outcome of pregnancies before IBD diagnosis, and (iv) outcome of pregnancies after IBD diagnosis...
March 14, 2018: European Journal of Gastroenterology & Hepatology
Kacey Y Eichelberger, Julianna G Alson, Kemi M Doll
Racial variations in preterm birth (PTB) outcomes are well described, but causal mechanisms linking race and PTB are not. In clinical research, race is typically treated as representing fixed biological traits. In reality, race is a social construct that approximates lived experiences of historical and ongoing systematic discrimination and, in the case of PTB, particular stressors of black womanhood and reproduction. These experiences are embodied as adverse multigenerational health outcomes. Race thus presents a dilemma for researchers...
March 1, 2018: AMA Journal of Ethics
Valentina Morsan, Carlo Fantoni, Maria Anna Tallandini
AIM: To verify whether it is appropriate to use age correction for infants born preterm in all the developmental domains (cognitive, linguistic, and motor) considered by the Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III). METHOD: Seventy-three infants born preterm (26-35wks) without major neurological sequelae and 67 infants born at term were assessed at 12 months (corrected age for infants born preterm). The performance of the infants born preterm was assessed with two different evaluations: scores based on uncorrected age and scores based on corrected age...
March 14, 2018: Developmental Medicine and Child Neurology
Francesca Ciuffini, Colin F Robertson, David G Tingay
Chronic respiratory morbidity is a common complication of premature birth, generally defined by the presence of bronchopulmonary dysplasia, both clinically and in trials of respiratory therapies. However, recent data have highlighted that bronchopulmonary dysplasia does not correlate with chronic respiratory morbidity in older children born preterm. Longitudinally evaluating pulmonary morbidity from early life through to childhood provides a more rational method of defining the continuum of chronic respiratory morbidity of prematurity, and offers new insights into the efficacy of neonatal respiratory interventions...
March 31, 2018: European Respiratory Review: An Official Journal of the European Respiratory Society
Tina Djernis Gundersen, Lone Krebs, Ellen Christine Leth Loekkegaard, Steen Christian Rasmussen, Julie Glavind, Tine Dalsgaard Clausen
OBJECTIVES: To examine the association between postpartum urinary tract infection and intended mode of delivery as well as actual mode of delivery. DESIGN: Retrospective cohort study. SETTING AND PARTICIPANTS: All live births in Denmark between 2004 and 2010 (n=450 856). Births were classified by intended caesarean delivery (n=45 053) or intended vaginal delivery (n=405 803), and by actual mode of delivery: spontaneous vaginal delivery, operative vaginal delivery, emergency or planned caesarean delivery in labour or prelabour...
March 14, 2018: BMJ Open
Ji Young Lee, Hyun Mi Kim, Mi Ju Kim, Hyun-Hwa Cha, Won Joon Seong
OBJECTIVE: To compare single nucleotide polymorphisms (SNPs) in the 3'-untranslated region (3'UTR) of human leukocyte antigen (HLA)-G in placentas between spontaneous preterm birth and preeclampsia pregnancies. RESULTS: Placental samples matched for gestational age were obtained from 20 cases of spontaneous preterm births and 19 cases of preeclampsia. Genomic deoxyribonucleic acid was extracted from placenta tissue and the 3'UTR region of HLA-G was amplified via polymerase chain reaction...
March 14, 2018: BMC Research Notes
Siddhidatri Mishra, Rashmi Bagga, Jasvinder Kalra, Vanita Jain, Sourabh Dutta
Women (n = 300) at 'low risk' for a preterm birth (PTB), a singleton pregnancy and for a 16-24 week period of gestation (POG) were randomised to undergo cervical length (CL) measurement by transvaginal sonography (TVS) or not. The aim was to see if routine CL measurement and treatment of a short CL reduced the PTB rate. 'Low risk' was defined by an absence of a prior abortion or PTB of a singleton infant (>16 to <37 weeks) due to a spontaneous preterm labour (PTL) or a preterm pre-labour rupture of membranes (pPROM)...
March 14, 2018: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
Tiong Y Lim, Enoka Gonsalkorala, Mary D Cannon, Stella Gabeta, Leonie Penna, Nigel D Heaton, Michael A Heneghan
BACKGROUND: Liver transplantation (LT) is a successful treatment for both acute liver failure and end-stage liver disease. The number of women of reproductive age undergoing LT is increasing. Pregnancy outcomes are favourable but there is still a lack of prognostic markers. We aimed to identify factors predictive of adverse pregnancy outcomes in LT recipients. METHODS: An analysis of all pregnancies occurring in LT recipients from 1989-2016 at King's College Hospital was performed...
March 14, 2018: Liver Transplantation
John A Troutman, Mary C Sullivan, Gregory J Carr, Jeffrey Fisher
Physiologically based pharmacokinetic (PBPK) models are developed from compound-independent information to describe important anatomical and physiological characteristics of an individual or population of interest. Modeling pediatric populations is challenging because of the rapid changes that occur during growth, particularly in the first few weeks and months after birth. Neonates who are born premature pose several unique challenges in PBPK model development. To provide appropriate descriptions for body weight (BW) and height (Ht) for age and appropriate incremental gains in PBPK models of the developing preterm and full term neonate, anthropometric measurements collected longitudinally from 1,063 preterm and 158 full term neonates were combined with 2,872 cross-sectional measurements obtained from the NHANES 2007-2010 survey...
March 14, 2018: Birth Defects Research
Michael Tchirikov, Erich Saling, Gauri Bapayeva, Michael Bucher, Oliver Thews, Gregor Seliger
In the first case, the AA and glucose were infused through a perinatal port system into the umbilical vein at 30 weeks' gestation due to severe IUGR. The patient received daily hyperbaric oxygenation (HBO, 100% O2 ) with 1.4 atmospheres absolute for 50 min for 7 days. At 31+4  weeks' gestation, the patient gave birth spontaneously to a newborn weighing 1378 g, pH 7.33, APGAR score 4/6/intubation. In follow-up examinations at 5 years of age, the boy was doing well without any neurological disturbance or developmental delay...
March 2018: Physiological Reports
Athena P Souka, Ioannis Papastefanou, Athanasios Pilalis, Dimitrios Kassanos, George Papadopoulos
OBJECTIVES: To assess the feasibility and the results of introducing a policy of universal screening for preterm delivery. METHODS: Transvaginal sonography for cervical length (CL) measurement was performed at 20-24 weeks of gestation. Vaginal progesterone therapy was offered to women with CL ≤ 15mm. RESULTS: 10,969 singleton pregnancies were assessed. The decline rate was 1.32%. Spontaneous preterm delivery at less than 32 weeks (SPD32), less than 34 weeks (SPD34) and less than 37 weeks (SPD37) occurred in 0...
March 14, 2018: Ultrasound in Obstetrics & Gynecology
Sujith S Pereira, Stephen T Kempley, David F Wertheim, Ajay K Sinha, Joan K Morris, Divyen K Shah
Background: Cerebral electrical activity in extremely preterm infants is affected by various factors including blood gas and circulatory parameters. Objective: To investigate whether continuously measured invasive mean arterial blood pressure (BP) is associated with electroencephalographic (EEG) discontinuity in extremely preterm infants. Study design: This prospective observational study examined 51 newborn infants born <29 weeks gestation in the first 3 days after birth...
2018: Frontiers in Neurology
Nariaki Asada
Kidneys are physiologically hypoxic due to huge oxygen consumption for tubular reabsorption. The physiological hypoxia makes the kidney an appropriate organ for sensitively detecting oxygen levels and producing erythropoietin (EPO). In preterm neonates, immature kidneys cannot produce sufficient EPO, which results in anemia of prematurity (AOP). The cause of EPO insufficiency in AOP has been unclear, therefore current therapeutic options are transfusion and injection of recombinant human EPO. This report shows that the cause of insufficient EPO production in AOP is elevated renal oxygen levels due to poor oxygen consumption by immature tubules...
March 13, 2018: Scientific Reports
Sukanya Srinivasan, Lisa Schlar, Stephanie E Rosener, Daniel J Frayne, Scott G Hartman, Michael A Horst, Jessica L Brubach, Stephen Ratcliffe
BACKGROUND: Preterm birth, birth defects, and unintended pregnancy are major sources of infant and maternal morbidity, mortality, and associated resource use in American health care. Interconception Care (ICC) is recommended as a strategy to improve birth outcomes by modifying maternal risks between pregnancies, but no established model currently exists. The Interventions to Minimize Preterm and Low Birth Weight Infants through Continuous Improvement Techniques (IMPLICIT) Network developed and implemented a unique approach to ICC by assessing mothers during their baby's well-child visits (WCVs) up to 24 months...
March 2018: Journal of the American Board of Family Medicine: JABFM
Changchang Li, Zhijiang Liang, Michael S Bloom, Qiong Wang, Xiaoting Shen, Huanhuan Zhang, Suhan Wang, Weiqing Chen, Yan Lin, Qingguo Zhao, Cunrui Huang
BACKGROUND: Preterm birth is the leading cause of child mortality under 5 years of age. Temporal trends in preterm birth rates are highly heterogeneous among countries and little information exists for China. To address this data gap, we investigated annual changes in preterm birth incidence rate and explored potential determinants of these changes in Shenzhen, China. METHODS: A total of 1.4 million live births, during 2003-2012, were included from the Shenzhen birth registry...
March 13, 2018: Reproductive Health
Huan Yan, Hong Li, Linlin Zhu, Junjun Gao, Pengyun Li, Zhan Zhang
OBJECTIVE: Increased inflammation is considered as a risk factor and a promoter of preterm birth (PTB). Monocytes and neutrophils are the main sources of cytokines in the early inflammatory phase. So far, very few studies have indicated CD14/ TLR4 and TREM-1 on the monocytes and neutrophils as important targets in PTB. MATERIALS AND METHODS: TLR4 and TREM-1 on CD14+ maternal and cord blood monocytes and neutrophils were detected using flow cytometry in 48 normal term women, 48 PTB with chorioamnionitis (CCA) women and 40 PTB without CCA women...
March 13, 2018: Journal of Maternal-fetal & Neonatal Medicine
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