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https://www.readbyqxmd.com/read/28535541/contribution-of-amniotic-fluid-along-gestation-to-the-prediction-of-perinatal-mortality-in-women-with-early-preterm-premature-rupture-of-membranes
#1
Teresa Cobo, Jordina Munrós, José Ríos, Janisse Ferreri, Federico Migliorelli, Núria Baños, Eduard Gratacós, Montse Palacio
INTRODUCTION: To evaluate the largest vertical pocket (LVP) of amniotic fluid as a time-dependent factor to predict perinatal mortality in women with early preterm premature rupture of membranes (EPPROM). MATERIAL AND METHODS: Observational cohort study of singleton pregnancies with EPPROM <24 weeks. Termination of pregnancy (TOP) was considered if the LVP was <2 cm at 7 days. The maternal and neonatal characteristics of ongoing pregnancies were recorded. Prediction of perinatal mortality was estimated based on the influence of the LVP as a time-dependent factor after adjustment for maternal age, prior invasive procedure, and gestational age at EPPROM...
May 24, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28535404/placental-inflammation-and-its-relationship-to-cervicovaginal-fetal-fibronectin-in-preterm-birth
#2
Laura van der Krogt, Alexandra E Ridout, Paul T Seed, Andrew H Shennan
OBJECTIVE: Late miscarriage and preterm birth are frequently thought to be associated with inflammation and infection, although in most cases the underlying cause of early delivery remains unknown. The placenta is the organ that links mother and fetus during pregnancy, and postnatal examination may provide useful information about pathophysiology. The relationship between placental pathological lesions and predictive markers of early delivery has not been explored. We sought to characterize preterm deliveries according to placental pathology and relate these to the performance of reliable predictive markers, fetal fibronectin and cervical length...
May 3, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28532196/fetal-and-neonatal-involvement-in-maternal-rheumatologic-disease
#3
Shigeo Iijima
A pregnancy complicated with rheumatologic diseases can have various influences on the fetus and/or neonate. Maternal systemic lupus erythematosus (SLE) may cause preterm and/or small for gestational age (SGA) delivery and neonatal lupus (NL). Some neonates with NL have congenital heart block (CHB) with increased morbidity and mortality, even requiring pacemakers. Antiphospholipid syndrome may occur with SLE and affect fetal and/or neonatal outcomes. Pregnancy involving primary Sjögren syndrome (pSS) tends to result in preterm delivery and low birthweight infants...
May 22, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28532020/ph-responsive-drug-release-and-real-time-fluorescence-detection-of-porous-silica-nanoparticles
#4
Xu Zhang, Yamin Wang, Yanbao Zhao, Lei Sun
In this work, pH-sensitive "dual-switch" porous silica (pSiO2) nanoparticles (NPs) were constructed for drug delivery. Poly(acrylic acid) (PAA) was grafting onto the internal and external surfaces of amino groups functionalized porous silica (pSiO2-NH2) NPs by the amidation between the amino groups and the carboxyl groups of PAA for pH triggered drug release. The resultant pSiO2/PAA NPs have an average diameter of 50-60nm and high specific surface area (914m(2)·g(-1)). To improve the loading capacity, ZnO quantum dots (QDs) were used to block the partial pores of pSiO2/PAA and the loading capacity reached to 28% for methotrexate (MTX) model drug...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28530792/phosphonated-pillar-5-arene-valved-mesoporous-silica-drug-deliv-ery-systems
#5
Xuan Huang, Shanshan Wu, Xiaokang Ke, Xueyuan Li, Xuezhong Du
To explore the diversity and promising applications of pillararene-based molecular machines, phosphonated pillar[5]arenes (PPA[5]) were synthesized to construct novel supramolecular nanovalves for the first time, based on mesoporous silica nanoparticles (MSNs) functionalized with choline and pyridinium moieties, respectively. PPA[5] encircled the choline or pyridinium stalks to construct supramolecular nanovalves for encapsulation of drugs within the MSN pores. PPA[5] showed a high binding affinity for the quaternary ammonium stalks through the host-guest interactions primarily via ion pairing between the phosphonate and quaternary ammonium moieties, in comparison to carboxylated pillar[5]arene (CPA[5]), to minimize premature drug release...
May 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28527297/hyaluronic-acid-nanogels-prepared-via-ortho-ester-linkages-show-ph-triggered-behavior-enhanced-penetration-and-antitumor-efficacy-in-3-d-tumor-spheroids
#6
Guanqing Yang, Shengxiang Fu, Weijing Yao, Xin Wang, Qian Zha, Rupei Tang
A new type of pH-triggered hyaluronic acid nanogel system (HA-NGs) was successfully developed for tumor-targeted delivery of drugs. HA-NGs were obtained by copolymerization between methacrylate HA and a new cross-linker containing ortho ester groups in an aqueous solution. The therapeutic drug (DOX) was loaded into the HA-NGs (DOX@HA-NGs) and exhibited appropriate loading of about 17.3% with a size of around 200nm. Such new pH-triggered HA-NGs are found to be highly desirable for targeted cancer therapy because it could significantly minimize the amount of premature drug release in neutral pH, and also provide a sufficient amount of drug to effectively kill the cancer cells caused by the degradation of ortho ester groups at acid pH values...
May 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28526452/gestational-age-at-initiation-of-17-alpha-hydroxyprogesterone-caproate-and-recurrent-preterm-birth
#7
Angela Ning, Catherine J Vladutiu, Sarah K Dotters-Katz, William H Goodnight, Tracy A Manuck
BACKGROUND: Preterm birth (PTB) is the leading cause of neonatal morbidity and mortality in non-anomalous neonates in the US. Women with a previous early spontaneous PTB are at highest risk for recurrence. Weekly intramuscular 17-alpha hydroxyprogesterone caproate (17-OHPC) reduces the risk of recurrent prematurity. Though current guidelines recommend 17-OHPC initiation between 16-20 weeks', in clinical practice, 17-OHPC is started across a spectrum of gestational ages. OBJECTIVE: To examine the relationship between the gestational age at 17-OHPC initiation and recurrent PTB among women a prior spontaneous PTB 16-28 weeks' gestation...
May 16, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28521581/association-between-the-use-of-magnesium-sulfate-as-neuroprotector-in-prematurity-and-the-neonatal-hemodynamic-effects
#8
Rodrigo Dias Nunes, Flávia Duarte Schutz, Jefferson Luiz Traebert
PURPOSE: Cerebral palsy is often associated with prematurity and magnesium sulfate (MgSO4), has been used as neuroprotector, with favorable results. However, its mechanism of action has not been fully elucidated. This study aimed to evaluate the association between MgSO4 at the imminent premature delivery and neonatal hemodynamic effects. MATERIALS AND METHODS: A cross-sectional study involving 94 newborns (NB) between 24 and 32 weeks at a Brazilian hospital was performed...
May 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28505223/association-of-short-antenatal-corticosteroid-administration-to-birth-intervals-with-survival-and-morbidity-among-very-preterm-infants-results-from-the-epice-cohort
#9
Mikael Norman, Aurelie Piedvache, Klaus Børch, Lene Drasbek Huusom, Anna-Karin Edstedt Bonamy, Elizabeth A Howell, Pierre-Henri Jarreau, Rolf F Maier, Ole Pryds, Liis Toome, Heili Varendi, Tom Weber, Emilija Wilson, Arno Van Heijst, Marina Cuttini, Jan Mazela, Henrique Barros, Patrick Van Reempts, Elizabeth S Draper, Jennifer Zeitlin
Importance: Administration-to-birth intervals of antenatal corticosteroids (ANS) vary. The significance of this variation is unclear. Specifically, to our knowledge, the shortest effective administration-to-birth interval is unknown. Objective: To explore the associations between ANS administration-to-birth interval and survival and morbidity among very preterm infants. Design, Setting, and Participants: The Effective Perinatal Intensive Care in Europe (EPICE) study, a population-based prospective cohort study, gathered data from 19 regions in 11 European countries in 2011 and 2012 on 4594 singleton infants with gestational ages between 24 and 31 weeks, without severe anomalies and unexposed to repeated courses of ANS...
May 15, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28502200/foetal-premature-atrial-contractions-during-the-second-and-third-trimester-are-not-associated-with-foetal-breathing
#10
Geoffrey H Gordon, Joelle Thomas, Barbara Trampe, J I Iruretagoyena
Foetal premature atrial contractions (PACs) are the most commonly encountered and also the most benign foetal arrhythmia. A retrospective cohort study was conducted with the objective to assess whether the presence of foetal breathing was associated with the presence of foetal PACs. A further objective was to evaluate whether this association would affect neonatal outcomes at a high volume referral centre. The diagnosis of PACs was based on the observation of a premature atrial contraction followed by a ventricular contraction on ultrasound myocardial M-mode...
May 14, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28501282/proteinuria-in-preeclampsia-not-essential-to-diagnosis-but-related-to-disease-severity-and-fetal-outcomes
#11
Xin Dong, Wenli Gou, Chunfang Li, Min Wu, Zhen Han, Xuelan Li, Qi Chen
Preeclampsia is a leading cause of maternal and perinatal morbidity and mortality globally and proteinuria can be one of the cardinal features of this disease. However, studies about the association of the amount of proteinuria and the severity of preeclampsia, and perinatal outcomes are limited. Data on 239 women with preeclampsia were retrospectively collected from a university teaching hospital from September 2011 to June 2013 and analysed. Data included all clinical parameters and proteinuria in a 24h urine collection...
April 2017: Pregnancy Hypertension
https://www.readbyqxmd.com/read/28494794/juvenile-idiopathic-arthritis-in-relation-to-perinatal-and-maternal-characteristics-a-case-control-study
#12
Samantha W Bell, Susan Shenoi, J Lee Nelson, Parveen Bhatti, Beth A Mueller
BACKGROUND: Existing data on associations between maternal and early childhood exposures and juvenile idiopathic arthritis (JIA) risk is scant and inconsistent with previous studies showing potential role for prematurity, number of siblings and infections. We explored JIA and International League of Associations for Rheumatology (ILAR) JIA categories in relation to selected infant (birthweight, size-for-gestational-age, gestational age), and maternal (parity, delivery type, prior fetal loss) characteristics that may be markers for exposures related to two pathways (hygiene hypothesis, microchimerism) potentially associated with autoimmune disorder occurrence...
May 11, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28485238/premature-babies-benefit-from-corticosteroids-before-birth
#13
(no author information available yet)
Giving mothers at risk of preterm delivery corticosteroid drugs from as early as 23 weeks of pregnancy is associated with a lower rate of death and serious illness for their babies, according to study published by the BMJ.
May 9, 2017: Nursing Children and Young People
https://www.readbyqxmd.com/read/28482725/umbilical-cord-blood-and-maternal-visfatin-pbef-nampt-concentrations-in-preterm-birth-with-and-without-preterm-premature-rupture-of-membranes
#14
Tereza Pavlová, Filip Zlámal, Zbyněk Šplíchal, Josef Tomandl, Zuzana Hodická, Pavel Ventruba, Julie Bienertová-Vašků
OBJECTIVES: The aim of the study is to investigate differences in visfatin concentrations between mothers with term and preterm birth (PTB) and between mothers who delivered within 7 days and after more than 7 days following admission for PTB/preterm premature rupture of membranes (PPROM). METHODS: Maternal peripheral blood and cord blood was collected from 56 mothers with PTB (31 with PPROM) and 71 mothers with term delivery (3 with PPROM). RESULTS: Maternal visfatin concentration was significantly higher for given gestational age in PTBs compared to term deliveries (p = 0...
May 9, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28481445/optimising-fertility-outcomes-for-women-with-early-stage-cervical-cancer-when-less-is-more
#15
Efterpi Tingi, Emma J Crosbie, Gemma Owens
Radical hysterectomy and pelvic lymphadenectomy is standard management for early-stage cervical cancer. Radical trachelectomy achieves equivalent oncological outcomes to hysterectomy thus providing an alternative for women who wish to preserve their fertility (Xu et al. Acta Obstet Gynecol Scand 2011; 90: 1200-09). Trachelectomy offers the potential for pregnancy but poor obstetric sequelae, including second trimester miscarriage, preterm premature rupture of membranes (PPROM) and preterm delivery are common, likely due to reduced mechanical support from a shortened cervix and ascending infection...
May 8, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28480843/prognostic-risk-of-obstetric-and-perinatal-complications-in-pregnant-women-with-thyroid-dysfunction
#16
N Morchiladze, B Tkeshelashvili, T Gagua, D Gagua
Maternal thyroid pathology takes important role in obstetric and peri-neonatal morbidity structure. Despite of the number of studies conducted in the field of thyroid disorders of pregnant females, the definition of influence of thyroid gland dysfunction on maternal and neonatal health still remains actual. The mentioned topics draw specific interest in the aspect of prognosticaiton of complications and unfavorable outcome. Aim of the study - to define the specificities of gestation period and determine the prognostic risk of obstetric and perinatal complications in pregnant females with thyroid pathology...
March 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28479288/a-randomized-trial-of-foley-bulb-for-labor-induction-in%C3%A2-premature-rupture-of-membranes-in-nulliparas-flip
#17
Jennifer M H Amorosa, Joanne Stone, Stephanie H Factor, Whitney Booker, Meredith Newland, Angela Bianco
BACKGROUND: In premature rupture of membranes (PROM), the risk of chorioamnionitis increases with increasing duration of membrane rupture. Decreasing the time from PROM to delivery is associated with lower rates of maternal infection. The American College of Obstetricians and Gynecologists suggests that all women with PROM who do not have a contraindication to vaginal delivery have their labor induced instead of being managed expectantly. Although the use of oxytocin for labor induction has been demonstrated to decrease the time to delivery compared with expectant management, no studies have evaluated the effectiveness of cervical ripening with a Foley bulb to additionally decrease the time to delivery...
May 4, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28477146/inducing-controlled-release-and-increased-tumor-targeted-delivery-of-chlorambucil-via-albumin-liposome-hybrid-nanoparticles
#18
Quan Zhang, Li Zhang, Zemin Li, Xingliang Xie, Xiurong Gao, Xiaohong Xu
Liposomes possess good biocompatibility and excellent tumor-targeting capacity. However, the rapid premature release of lipophilic drugs from the lipid bilayer of liposomes has negative effect on the tumor-targeted drug delivery of liposomes. In this study, a lipophilic antitumor drug-chlorambucil (CHL)-was encapsulated into the aqueous interior of liposomes with the aid of albumin to obtain the CHL-loaded liposomes/albumin hybrid nanoparticles (CHL-Hybrids). The in vitro accumulative release rate of CHL from CHL-Hybrids was less than 50% within 48 h, while the accumulative CHL release was more than 80% for CHL-loaded liposomes (CHL-Lip)...
May 5, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28476473/decrease-in-delivery-room-intubation-rates-after-use-of-nasal-intermittent-positive-pressure-ventilation-in-the-delivery-room-for-resuscitation-of-very-low-birth-weight-infants
#19
Manoj Biniwale, Fiona Wertheimer
BACKGROUND: The literature supports minimizing duration of invasive ventilation to decrease lung injury in premature infants. Neonatal Resuscitation Program recommended use of non-invasive ventilation (NIV) in delivery room for infants requiring prolonged respiratory support. OBJECTIVE: To evaluate the impact of implementation of non-invasive ventilation (NIV) using nasal intermittent positive pressure ventilation (NIPPV) for resuscitation in very low birth infants...
May 2, 2017: Resuscitation
https://www.readbyqxmd.com/read/28472969/perforated-acute-appendicitis-with-no-peritonitis-in-a-premature-baby-a-case-report
#20
Fayza Haider, Barrak Ayoub, Mariam Al Kooheji, Mona Al Juffairi, Safa Al-Shaikh
BACKGROUND: Acute appendicitis in a neonate and premature baby is still considered a rare entity as diagnosis is always made after surgical exploration for acute abdominal findings mimicking necrotizing enterocolitis. Our reported case is a premature baby who had a perforated appendix with no evidence of peritonitis. CASE PRESENTATION: We describe the case of a premature Bahraini girl born at 29 weeks of gestation by spontaneous vaginal delivery to a 39-year-old G6P5 mother...
May 5, 2017: Journal of Medical Case Reports
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