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https://www.readbyqxmd.com/read/28433870/automated-detection-of-premature-delivery-using-empirical-mode-and-wavelet-packet-decomposition-techniques-with-uterine-electromyogram-signals
#1
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/28429366/analysis-of-transcriptional-activities-of-angiogenic-biomarkers-during-intrauterine-complications-leading-to-preterm-birth
#2
M Rabajdová, R Dudič, P Urban, V Dudičová, P Urdzík, M Mareková
OBJECTIVE: Pre-eclampsia, growth retardation and preterm delivery are the most common reasons leading to increased maternal and perinatal mortality. The increased expression of hypoxia induced factors, such as HIF-1, triggers the overexpression of anti-angiogenic genes. The aim of this study was to determine the transcriptional activity of individual pro- and anti-angiogenic markers (VEGF, HIF-1, sEng, Flt-1, PlGF-1) in maternal blood samples from patients with spontaneous preterm labor, preterm labor in combination with pre-eclampsia and fetal growth restriction in comparison with physiologically terminated pregnancies...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28426126/actinomyces-in-pregnancy-a-review-of-the-literature
#3
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/28426125/cerclage-use-a-review-of-3-national-guidelines
#4
Jeffrey D Sperling, Joshua D Dahlke, Juan M Gonzalez
Importance: Preterm birth is a major contributor to perinatal morbidity and mortality. The most common intervention performed to improve perinatal outcomes for a woman experiencing cervical dilation in the second trimester without signs or symptoms of preterm labor is the cerclage. Objective: We sought to review and compare available national guidelines on cerclage use. Evidence Acquisition: We performed a descriptive review of 3 national guidelines on cerclage: The American Congress of Obstetricians and Gynecologists Practice Bulletin on "Cerclage for the Management of Cervical Insufficiency," Green-top Guideline from the Royal College of Obstetricians and Gynaecologists entitled "Cervical Cerclage," and the Society of Obstetricians and Gynaecologists of Canada Clinical Practice Bulletin entitled "Cervical Insufficiency and Cervical Cerclage...
April 2017: Obstetrical & Gynecological Survey
https://www.readbyqxmd.com/read/28425250/retrospective-analysis-of-maternal-fetal-and-neonatal-outcomesof-intrahepatic-cholestasis-of-pregnancy-at-gazi-university
#5
Berrin Günaydin, Merih Bayram, Melis Altuğ, Semra Cevher, Nuray Bozkurt
BACKGROUND/AIM: Maternal, fetal, and neonatal outcomes in parturients with intrahepatic cholestasis of pregnancy (ICP) have been retrospectively documented. We aimed to present pregnancy outcomes of parturients with ICP who underwent delivery. The study was conducted during a 1-year period. MATERIALS AND METHODS: After ethics committee approval, data from 1 January to 31 December 2015 were collected to identify parturients with ICP. RESULTS: Ten out of 37 patients underwent normal spontaneous vaginal delivery (NSVD), and the remaining 27 parturients underwent cesarean section (CS)...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28422709/preterm-birth-among-women-living-within-600-meters-of-high-voltage-overhead-power-lines-a-case-control-study
#6
Taktom Sadeghi, Amirmasoud Ahmadi, Maryam Javadian, Sayyed Asghar Gholamian, Mouloud Agajani Delavar, Sedigheh Esmailzadeh, Bahare Ahmadi, Mozhgan Sadat Hassanpour Hadighi
AIM: The issue of preterm birth due to exposure to magnetic fields from power lines is unclear. Exposure to electromagnetic field in uterus has been hypothesized as possible preterm birth. The aim of the present study was to determine whether living closer to high voltage power lines increased the risk of preterm labor. METHODS: In a nested case-control study, 135 cases of singleton live spontaneous preterm birth in Rohani hospital, Babol, Iran, during the period between 2013 and 2014 were studied...
April 18, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28420506/prediction-of-spontaneous-preterm-delivery-in-asymptomatic-twin-pregnancies-using-cervical-length-and-granulocyte-elastase
#7
Kei Tanaka, Kenji Yamada, Miho Matsushima, Tomoko Izawa, Seishi Furukawa, Yoichi Kobayashi, Mitsutoshi Iwashita
OBJECTIVE: The purpose of this study was to evaluate sonographic cervical length (CL) and granulocyte elastase (GE) in cervical secretion as predictors of preterm delivery in asymptomatic twin pregnancies. MATERIALS AND METHODS: This study prospectively enrolled asymptomatic twin pregnancies with CL < 25 mm at 22-29 weeks of gestation. All women were hospitalized for preterm labor, and the cervical secretion was obtained for GE testing on admission. The results of CL measurement and GE testing were reviewed, and the relationship between each variables and preterm delivery prior to 34 weeks of gestation was assessed...
April 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28419732/a-phase-1-randomized-placebo-controlled-study-assessing-the-pharmacokinetics-safety-and-tolerability-of-retosiban-in-healthy-nonpregnant-japanese-subjects
#8
Stephen Caltabiano, Mindy He Magee, Feng Liu, Kathleen J Beach
This study characterized the pharmacokinetics, safety, and tolerability of retosiban in healthy, nonpregnant Japanese women prior to the enrollment of Japanese women in preterm labor in phase 3 trials. This study had 2 cohorts. Cohort 1 was a double-blind, sponsor-open, randomized study in Japanese women. Cohort 2 was an open-label study in white women to compare the pharmacokinetics with those of Japanese women. Retosiban was administered as a 6 mg/h infusion for 24 hours, followed by a 12 mg/h infusion over the next 24 hours; each infusion was preceded by a 6 mg loading dose administered over 5 minutes...
April 17, 2017: Clinical Pharmacology in Drug Development
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
#9
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/28416778/steroid-pulse-therapy-for-de-novo-minimal-change-disease-during-pregnancy
#10
Hiroshi Sato, Yuna Asami, Reona Shiro, Masato Aoki, Miki Yasuda, Saeko Imai, Rie Sakai, Kenji Oida, Kanako Kawaharamura, Hiroko Yano, Nao Taguchi, Takako Suzuki, Masaya Hirose
BACKGROUND Nephrotic syndrome occurs very rarely, in only about 0.01%-0.02% of all pregnancies, and de novo minimal change disease during pregnancy is especially rare. Nephrotic syndrome and, especially, minimal change disease are highly responsive to steroids, and preterm labor may be avoidable if the maternal condition is improved with steroid therapy. Therefore, prompt diagnosis and proper management are critical to maternal and fetal outcome when severe proteinuria occurs during pregnancy. CASE REPORT A 30-year-old pregnant Japanese woman presented with systemic edema, oliguria, and severe proteinuria and hypoalbuminemia at 25 weeks of gestation, although she was normotensive...
April 18, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28409493/obesity-in-pregnancy-a-novel-concept-on-the-roles-of-adipokines-in-uterine-contractility
#11
REVIEW
Judit Hajagos-Tóth, Eszter Ducza, Reza Samavati, Sandor G Vari, Robert Gaspar
Obesity is a global health problem even among pregnant women. Obesity alters quality of labor, such as preterm labor, prolonged labor, and higher oxytocin requirements in pregnant women. The most important factors to play a role in the altered gestational period and serve as drug targets to treat the consequences are female sexual hormones, calcium channels, adrenergic system, oxytocin, and prostaglandins. However, we have limited information about the impact of obesity on the pregnant uterine contractility and gestation time...
April 14, 2017: Croatian Medical Journal
https://www.readbyqxmd.com/read/28403428/maternal-and-fetal-outcomes-of-admission-for-delivery-in-women-with-congenital-heart-disease
#12
Robert M Hayward, Elyse Foster, Zian H Tseng
Background: Women with congenital heart disease (CHD) may be at increased risk for adverse events during pregnancy and delivery. Objective: To compare delivery outcomes between women with and without CHD. Design, Setting, and Participants: This retrospective study of inpatient delivery admissions in the Healthcare Cost and Utilization Project's California State Inpatient Database compared maternal and fetal outcomes between women with and without CHD by using multivariate logistic regression...
April 12, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28403049/clinical-and-microbiologic-characteristics-of-early-onset-sepsis-among-very-low-birth-weight-infants-opportunities-for-antibiotic-stewardship
#13
Sagori Mukhopadhyay, Karen M Puopolo
BACKGROUND: Most very low birth weight (VLBW, birth weight <1500 g) infants receive empiric antibiotics for risk of early-onset sepsis (EOS). The objective of this study was to determine the characteristics of VLBW infants with culture-confirmed EOS at a single center during 25 years and to identify opportunities for antibiotic stewardship. METHODS: Retrospective cohort study includes VLBW infants admitted from 1990 to 2015. EOS was defined as isolation of a pathogen in blood or cerebrospinal fluid culture obtained at <72 hours of age...
May 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28399439/maternal-and-pregnancy-related-factors-affecting-human-milk-cytokines-among-peruvian-mothers-bearing-low-birth-weight-neonates
#14
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/28397052/pregnancy-outcomes-following-transvaginal-cerclage-for-cervical-insufficiency-results-from-a-single-center-retrospective-study
#15
Sheng Wang, Ying Wang, Ling Feng
To study maternal and perinatal outcomes after cervical cerclage in both singleton and twin pregnancies, we retrospectively reviewed women undergoing cervical cerclage for cervical insufficiency at Tongji Hospital, Wuhan, China from January 1, 2010 to July 31, 2015 to evaluate primary and secondary outcomes for subgroups with cervical length (CL) ≤15, >15 to <25, and ≥25 mm. Of 166 patients who underwent cervical cerclage, after exclusion of patients with missed abortion and continuing pregnancy, 141 patients (121 singleton and 20 twin pregnancies) were included in the analysis...
April 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28391406/association-between-cacna1c-gene-polymorphisms-and-ritodrine-induced-adverse-events-in-preterm-labor-patients
#16
Min Young Baek, Han Sung Hwang, Jin Young Park, Jee Eun Chung, Kyung Eun Lee, Gwan Yung Lee, Jin Won Seong, Jeong Yee, Young Ju Kim, Hye Sun Gwak
PURPOSE: As a tocolytic agent, ritodrine has been used in European and Asian countries but has lost popularity due to safety concerns. This study aimed to investigate the relationship between adverse drug events caused by ritodrine and the CACNA1C polymorphisms in preterm labor patients. METHODS: Data were collected from medical records including maternal age, gestational age, body mass index, dilation score, effacement score, modified Bishop score, maximum infusion rate, and adverse drug events...
April 8, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28388726/the-role-of-epithelial-to-mesenchymal-transition-in-human-amniotic-membrane-rupture
#17
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/28376665/thinking-outside-the-box
#18
Judith Ingles, Chandrashekara N Kyathanahalli, Pancharatnam Jeyasuria, Jennifer C Condon
A broad definition of preconditioning is "the preparation for a subsequent action." Mounting evidence demonstrates that novel remote preconditioning paradigms, in which protective stimuli experienced locally can capacitate systemic tolerance and enhanced cell viability upon exposure to ensuing cellular insults, have been largely successful in the field of cardiovascular ischemia/reperfusion injury. To ensure successful protective preconditioning, some models (including the uterus) have been demonstrated to activate the unfolded protein response (UPR), which is a cellular stress response controlled at the level of the endoplasmic reticulum...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28376638/transabdominal-collection-of-amniotic-fluid-sludge-and-identification-of-candida-albicans-intra-amniotic-infection
#19
Juan P Kusanovic, Roberto Romero, Carolina Martinovic, Karla Silva, Offer Erez, Eli Maymon, Francisco Díaz, Fernando Ferrer, Rafael Valdés, Víctor Córdova, Paula Vargas, María Elena Nilo, Patricio Le Cerf
A G3P2 patient who conceived with an intrauterine contraceptive device (IUD) presented at 20 weeks of gestation with mild irregular uterine contractions and vaginal bleeding. Sonographic examination at admission showed the presence of dense amniotic fluid "sludge" and a long sonographic uterine cervix (42 mms). To assess the microbiologic significance of amniotic fluid "sludge", we performed a transabdominal amniocentesis. The procedure was performed under real-time ultrasound, and fluid resembling pus at gross examination was noted...
April 5, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28370518/cost-effectiveness-of-diagnostic-testing-strategies-including-cervical-length-measurement-and-fibronectin-testing-in-women-with-symptoms-of-preterm-labor
#20
Gert-Jan van Baaren, Jolande Y Vis, Femke F Wilms, Martijn A Oudijk, Anneke Kwee, Martina M Porath, Hubertina Cj Scheepers, Marc Ea Spaanderman, Kitty Wm Bloemenkamp, Monique C Haak, Caroline J Bax, Jérôme Mj Cornette, Johannes J Duvekot, Bas Wa Nij Bijvanck, Jim van Eyck, Maureen Tm Franssen, Krystyna M Sollie, Frank Pha Vandenbussche, Mallory Woiski, Antoinette C Bolte, Joris Am van der Post, Patrick Mm Bossuyt, Brent C Opmeer, Ben Wj Mol
OBJECTIVE: To evaluate the cost-effectiveness of combining cervical length (CL) measurement and fetal fibronectin (fFN) tests for women with symptoms of preterm labor between 24 and 34 weeks gestation. METHODS: We performed a model-based cost-effectiveness analysis to evaluate seven test-treatment strategies based on CL and/or fFN in women with symptoms of preterm labor from a societal perspective, in which we weighted neonatal outcome and costs. Estimates of disease prevalence, test accuracy and costs, were based on two recently performed nationwide cohort studies in The Netherlands...
March 31, 2017: Ultrasound in Obstetrics & Gynecology
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