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Premature labor

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https://www.readbyqxmd.com/read/28545834/the-relationship-of-the-subtypes-of-preterm-birth-with-retinopathy-of-prematurity
#1
Anne M Lynch, Brandie D Wagner, Jennifer K Hodges, Tamara S Thevarajah, Emily A Mccourt, Ashlee M Cerda, Naresh Mandava, Ronald S Gibbs, Alan G Palestine
BACKGROUND: Retinopathy of prematurity (ROP) is an adverse outcome of preterm birth (PTB) and is a leading cause of childhood blindness. The relationship between the subtypes of PTB with ROP is understudied. OBJECTIVE: To investigate if there is a difference in the incidence of type 1 or type 2 ROP in infants with PTB resulting from spontaneous preterm labor (SPTL), a medical indication (MIPTB), or preterm-premature rupture of the membranes (PPROM). STUDY DESIGN: A retrospective cohort study of 827 infants screened for ROP who delivered at a single tertiary care center in Colorado...
May 22, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28528756/necrotizing-enterocolitis-in-low-birth-weight-infants-in-china-mortality-risk-factors-expressed-by-birth-weight-categories
#2
Tian Qian, Rong Zhang, Li Zhu, Peng Shi, Jie Yang, Chang-Yi Yang, Dong-Mei Chen, Jing-Yun Shi, Xiao-Guang Zhou, Yin-Ping Qiu, Yong Yang, Ling He, Shao-Ru He, Yun-Tao Cao, Qiu-Fen Wei, Manoj Kumar, Chao Chen
BACKGROUND: We retrospectively investigated incidence, morbidity, and mortality of neonatal necrotizing enterocolitis in China, with special emphasis on determining the predictors of necrotizing enterocolitis associated mortality. METHODS: We identified neonates as having necrotizing enterocolitis if they met the accepted diagnostic criterion. Data pertaining to antenatal period, labor and birth, and the postnatal course of illness were collected. Multivariate analysis and logistic regression were used to analyze the risk factors...
April 12, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28527266/-risk-factors-associated-with-the-development-of-perinatal-asphyxia-in-neonates-at-the-hospital-universitario-del-valle-cali-colombia-2010-2011
#3
Javier Torres-Muñoz, Christian Rojas, Diana Mendoza-Urbano, Darly Marín-Cuero, Sandra Orobio, Carlos Echandía
INTRODUCTION: Perinatal asphyxia is one of the main causes of perinatal mortality and morbidity worldwide and it generates high costs for health systems; however, it has modifiable risk factors. OBJECTIVE: To identify the risk factors associated with the development of perinatal asphyxia in newborns at Hospital Universitario del Valle, Cali, Colombia. MATERIALS AND METHODS: Incident cases and concurrent controls were examined. Cases were defined as newborns with moderate to severe perinatal asphyxia who were older than or equal to 36 weeks of gestational age, needed advanced resuscitation and presented one of the following: early neurological disorders, multi-organ commitment or a sentinel event...
April 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28526452/gestational-age-at-initiation-of-17-alpha-hydroxyprogesterone-caproate-and-recurrent-preterm-birth
#4
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/28479288/a-randomized-trial-of-foley-bulb-for-labor-induction-in%C3%A2-premature-rupture-of-membranes-in-nulliparas-flip
#5
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/28471964/prenatal-perinatal-and-postnatal-factors-associated-with-autism-a-meta-analysis
#6
Chengzhong Wang, Hua Geng, Weidong Liu, Guiqin Zhang
BACKGROUND: The aim of this meta-analysis was to investigate the prenatal, perinatal, and postnatal risk factors for children autism. METHODS: PubMed, Embase, Web of Science were used to search for studies that examined the prenatal, perinatal, and postnatal risk factors for children autism. A fixed-effects model or random-effects model was used to pool the overall effect estimates. RESULTS: Data from 37,634 autistic children and 12,081,416 nonautistic children enrolled in 17 studies were collated...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28452086/the-effects-of-nifedipine-and-atosiban-on-perinatal-brain-injury-a-secondary-analysis-of-the-apostel-iii-trial
#7
T A J Nijman, M M Goedhart, C N Naaktgeboren, T R de Haan, D C Vijlbrief, B W Mol, M J N Benders, A Franx, M A Oudijk
OBJECTIVE: Brain injury in prematurely born neonates is strongly associated with poor neurodevelopmental outcome. The aim of our study is to evaluate if nifedipine reduces overall brain injury compared to atosiban in women with threatened preterm birth. METHODS: We performed a secondary analysis of the APOSTEL III-trial (Dutch Clinical Trial Registry, number NTR2947). This was a randomized clinical trial that allocated women with threatened preterm labor between 25-34 weeks of gestation to nifedipine or atosiban...
April 28, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28433870/automated-detection-of-premature-delivery-using-empirical-mode-and-wavelet-packet-decomposition-techniques-with-uterine-electromyogram-signals
#8
U Rajendra Acharya, Vidya K Sudarshan, Soon Qing Rong, Zechariah Tan, Choo Min Lim, Joel Ew Koh, Sujatha Nayak, Sulatha V Bhandary
An accurate detection of preterm labor and the risk of preterm delivery before 37 weeks of gestational age is crucial to increase the chance of survival rate for both mother and the infant. Thus, the uterine contractions measured using uterine electromyogram (EMG) or electro hysterogram (EHG) need to have high sensitivity in the detection of true preterm labor signs. However, visual observation and manual interpretation of EHG signals at the time of emergency situation may lead to errors. Therefore, the employment of computer-based approaches can assist in fast and accurate detection during the emergency situation...
April 18, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28426126/actinomyces-in-pregnancy-a-review-of-the-literature
#9
Sarah M Estrada, Everett F Magann, Peter G Napolitano
Importance: Actinomyces is commonly found in many areas of the body where it derives a benefit without harming the host. When it does infect the host during pregnancy, is that infection a threat to the obstetric patient and does that infection cause adverse pregnancy outcomes? Objective: The aim of this study was to review what is known about Actinomyces infections and the impact of an Actinomyces infection on pregnancy outcomes. Evidence Acquisition: A PubMed search was undertaken with the search years unlimited to April 1, 2016, and restricted to articles in English...
April 2017: Obstetrical & Gynecological Survey
https://www.readbyqxmd.com/read/28419299/pregnancy-and-labor-complications-in-female-survivors-of-childhood-cancer-the-british-childhood-cancer-survivor-study
#10
Raoul C Reulen, Chloe J Bright, David L Winter, Miranda M Fidler, Kwok Wong, Joyeeta Guha, Julie S Kelly, Clare Frobisher, Angela B Edgar, Roderick Skinner, W Hamish B Wallace, Mike M Hawkins
Background: Female survivors of childhood cancer treated with abdominal radiotherapy who manage to conceive are at risk of delivering premature and low-birthweight offspring, but little is known about whether abdominal radiotherapy may also be associated with additional complications during pregnancy and labor. We investigated the risk of developing pregnancy and labor complications among female survivors of childhood cancer in the British Childhood Cancer Survivor Study (BCCSS). Methods: Pregnancy and labor complications were identified by linking the BCCSS cohort (n = 17 980) to the Hospital Episode Statistics (HES) for England...
November 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28418339/fetal-nasal-bone-length-as-a-novel-marker-for-prediction-of-adverse-perinatal-outcomes-in-the-first-trimester-of-pregnancy
#11
Mehmet Tunç Canda, Namık Demir, Orçun Sezer
BACKGROUND: Adverse outcomes of pregnancy are a challenging health-care problem. Prediction of adverse pregnancy outcomes is important to prevent the morbidities of the foetus and the mother. AIMS: To study the clinical interest of fetal nasal bone length in predicting adverse pregnancy outcomes in the first trimester of pregnancy. STUDY DESIGN: A population-based retrospective cohort study. METHODS: Data from 868 women with first-trimester fetal nasal bone length and birth records available were enrolled...
April 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28399640/associations-of-maternal-testosterone-and-cortisol-levels-with-health-outcomes-of-mothers-and-their-very-low-birth-weight-infants
#12
June Cho, Xiaogang Su, Diane Holditch-Davis
OBJECTIVE: Although the roles of testosterone and cortisol in various health problems have been extensively investigated, little is known about their associations with health outcomes in mothers and their very-low-birth weight (VLBW) infants when maternal testosterone and cortisol are examined together during the postpartum period. METHOD: The 101 mother-VLBW infant pairs were recruited from the neonatal intensive care unit of a tertiary medical center in the southeastern United States...
January 1, 2017: Biological Research for Nursing
https://www.readbyqxmd.com/read/28399439/maternal-and-pregnancy-related-factors-affecting-human-milk-cytokines-among-peruvian-mothers-bearing-low-birth-weight-neonates
#13
Mara Zambruni, Alex Villalobos, Anoma Somasunderam, Sarah Westergaard, Maitreyee Nigalye, Christie G Turin, Jaime Zegarra, Sicilia Bellomo, Erik Mercado, Theresa J Ochoa, Netanya S Utay
Several cytokines have been detected in human milk but their relative concentrations differ among women and vary over time in the same person. The drivers of such differences have been only partially identified, while the effect of luminal cytokines in the fine-regulation of the intestinal immune system is increasingly appreciated. The aim of this study was to investigate the associations between obstetrical complications and human milk cytokine profiles in a cohort of Peruvian women giving birth to Low Birth Weight (LBW) infants...
April 6, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28395330/contributions-to-the-dynamics-of-cervix-remodeling-prior-to-term-and-preterm-birth
#14
Steven M Yellon
Major clinical challenges for obstetricians and neonatologists result from early cervix remodeling and preterm birth. Complications related to cervix remodeling or delivery account for significant morbidity in newborns and peripartum mothers. Understanding morphology and structure of the cervix in pregnant women is limited mostly to the period soon before and after birth. However, evidence in rodent models supports a working hypothesis that a convergence of factors promotes a physiological inflammatory process that degrades the extracellular collagen matrix and enhances biomechanical distensibility of the cervix well before the uterus develops the contractile capabilities for labor...
January 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28389222/cesarean-delivery-in-the-second-stage-of-labor-and-the-risk-of-subsequent-premature-birth
#15
Stephen L Wood, Selphee Tang, Susan Crawford
BACKGROUND: Cesarean delivery is being increasingly used by obstetricians for indicated deliveries in the second stage of labor. Unplanned extension of the uterine incision involving the cervix often occurs with these surgeries. Therefore, we hypothesized that cesarean delivery in the second stage of labor may increase the rate of subsequent spontaneous premature birth. OBJECTIVE: We sought to determine if cesarean delivery in the late first stage of labor or in the second stage of labor increases the risk of a subsequent spontaneous preterm birth...
April 4, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28388726/the-role-of-epithelial-to-mesenchymal-transition-in-human-amniotic-membrane-rupture
#16
Carla Janzen, Suvajit Sen, Margarida Y Y Lei, Marina Gagliardi de Assumpcao, John Challis, Gautam Chaudhuri
Context: Biochemical weakening of the amnion is a major factor preceding preterm premature rupture of membranes (PPROMs), leading to preterm birth. Activation of matrix metalloproteinases (MMPs) is known to play a key role in collagen degradation of the amnion; however, epithelial to mesenchymal transition (EMT) that is also induced by MMP activation has not been investigated as a mechanism for amnion weakening. Objective: To measure amniotic EMT associated with vaginal delivery (VD) compared with unlabored cesarean sections (CSs), and to assess changes in amniotic mechanical strength with pharmacologic inhibitors and inducers of EMT, thus testing the hypothesis that EMT is a key biochemical event that promotes amniotic rupture...
April 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28380160/high-risk-pregnancies-and-factors-associated-with-neonatal-death
#17
Marcela de Oliveira Demitto, Angela Andréia França Gravena, Cátia Millene Dell'Agnolo, Marcos Benatti Antunes, Sandra Marisa Pelloso
OBJECTIVE: To identify the factors associated with intra-hospital neonatal mortality based on the individual characteristics of at-risk pregnant mothers, delivery and newborns. METHOD: This was a cross-sectional epidemiological study of live newborns delivered by women attended at the high-risk outpatient unit of a philanthropic hospital in Maringá, Paraná, Brazil between September 2012 and September 2013. RESULTS: Six hundred and eighty-eight women participated in the study...
April 3, 2017: Revista da Escola de Enfermagem da U S P
https://www.readbyqxmd.com/read/28358839/frequency-and-clinical-significance-of-short-cervix-in-patients-with-preterm-premature-rupture-of-membranes
#18
Seung Mi Lee, Kyo Hoon Park, Eun Young Jung, Ji Ae Jang, Ha-Na Yoo
OBJECTIVE: Cervical length measurement has been uggested as a useful tool for predicting intra-amniotic infection/inflammation in preterm labor, but little information is available in the setting of preterm premature rupture of membranes (pPROM). We aimed to determine whether a short cervical length is independently associated with an increased risk of intra-amniotic infection or inflammation and impending preterm delivery in women with pPROM. METHODS: This was a retrospective cohort study involving 171 consecutive singleton pregnant women with pPROM (21+0-33+6 weeks' gestation), who underwent amniocentesis...
2017: PloS One
https://www.readbyqxmd.com/read/28344957/predicting-factors-for-success-of-vaginal-delivery-in-preterm-induction-with-prostaglandin-e2
#19
Yoo Min Kim, Ju Young Park, Ji-Hee Sung, Suk-Joo Choi, Soo-Young Oh, Cheong-Rae Roh, Jong-Hwa Kim
OBJECTIVE: To evaluate the efficacy and safety of prostaglandin (PG) E2 for preterm labor induction and to investigate the predictive factors for the success of vaginal delivery. METHODS: A retrospective cohort study was performed in women (n=155) at 24+0 to 36+6 weeks of gestation who underwent induction of labor using a PGE2 vaginal pessary (10 mg, Propess) from January 2009 to December 2015. Success rates of vaginal delivery according to gestational age at induction and incidence of intrapartum complications such as tachysystole and nonreassuring fetal heart rate were investigated...
March 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28334569/incidence-and-risk-factors-of-caesarean-section-in-preterm-breech-births-a-population-based-cohort-study
#20
Elsa Lorthe, Mathilde Quere, Loïc Sentilhes, Pierre Delorme, Gilles Kayem
OBJECTIVES: To describe the incidence of breech presentation at 22-34 weeks' gestation, estimate the incidence of cesarean section delivery by cause of prematurity, and assess the factors associated with caesarean delivery in preterm breech births with preterm labor or preterm premature rupture of membranes. STUDY DESIGN: EPIPAGE 2 is a French national prospective population-based cohort study of preterm births that occurred in 546 maternity units in 2011. We estimated the overall incidence of breech presentation and the incidence of cesarean delivery by cause of prematurity...
May 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
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