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https://www.readbyqxmd.com/read/28330965/greater-sympathoadrenal-activation-with-longer-pre-ventilation-intervals-after-immediate-cord-clamping-increases-hemodynamic-lability-at-birth-in-preterm-lambs
#1
Joseph J Smolich, Kelly R Kenna, Murray David Esler, Sarah E Phillips, Gavin W Lambert
This study tested the hypothesis that varying degrees of hemodynamic fluctuations seen after birth following immediate cord clamping were related to development of asphyxia with longer cord clamp-to-ventilation intervals, resulting in higher perinatal circulating levels of the catecholamines norepinephrine (NE) and epinephrine (Epi), and thus increased heart rate, blood pressures and cardiac contractility after birth. Anesthetized preterm fetal lambs were instrumented with 1) aortic (AoT) and pulmonary trunk (PT) micromanometers to obtain pressures and the maximal rate of pressure rise (dP/dtmax) as a surrogate measure of ventricular contractility, and 2) an AoT catheter to obtain samples for blood gas and catecholamine analyses...
March 22, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28302697/abstention-or-intervention-for-isolated-hypotension-in-the-first-3%C3%A2-days-of-life-in-extremely-preterm-infants-association-with-short-term-outcomes-in-the-epipage-2-cohort-study
#2
Xavier Durrmeyer, Laetitia Marchand-Martin, Raphaël Porcher, Geraldine Gascoin, Jean-Christophe Roze, Laurent Storme, Geraldine Favrais, Pierre-Yves Ancel, Gilles Cambonie
OBJECTIVE: To compare outcomes at hospital discharge for preterm infants born before 29 weeks of gestation who had at least one episode of isolated hypotension during their first 72 hours of life for which they did or did not receive antihypotensive treatment. DESIGN: Etude Epidémiologique sur les Petits Ages Gestationnels 2 (EPIPAGE 2) French national prospective population-based cohort study in 2011. SETTING: 60 neonatal intensive care units...
March 16, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28301846/programming-of-the-hypothalamus-pituitary-adrenal-axis-by-very-preterm-birth
#3
Martijn J J Finken, Bibian van der Voorn, Jonneke J Hollanders, Charlotte A Ruys, Marita de Waard, Johannes B van Goudoever, Joost Rotteveel
BACKGROUND: Many very preterm (i.e., <32 weeks of gestation) newborns fail to mount an adequate adrenocortical response to stress or illness, termed relative adrenal insufficiency. Conversely, later in life these infants show features of increased glucocorticoid bioactivity, such as abdominal adiposity, insulin resistance, raised blood pressure, shorter stature and internalizing problem behavior. SUMMARY: Studies suggested that very preterm newborns have impairments along multiple levels of the hypothalamus-pituitary-adrenal (HPA) axis...
March 17, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28285280/effect-of-delayed-cord-clamping-on-hematocrit-and-thermal-and-hemodynamic-stability-in-preterm-neonates-a-randomized-controlled-trial
#4
Niraj Kumar Dipak, Ruchi Nimish Nanavat, Nand Kishore Kabra, Anita Srinivasan, Anitha Ananthan
OBJECTIVE: To evaluate the short term clinical effects of delayed cord clamping in preterm neonates. DESIGN: Randomized controlled trial. SETTING: A tertiary care neonatal unit from October 2013 to September 2014. PARTICIPANTS: 78 mothers with preterm labor between 27 to 316/7 weeks gestation. INTERVENTION: Early cord clamping (10 s), delayed cord clamping (60 s) or delayed cord clamping (60 s) along with intramuscular ergometrine (500 µg) administered to the mother...
February 15, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/28243581/impact-of-changing-clinical-practices-on-early-blood-gas-analyses-in-very-preterm-infants-and-their-associated-inpatient-outcomes
#5
Hongmei Huang, Po-Yin Cheung, Megan O'Reilly, Sylvia van Os, Anne Lee Solevåg, Khalid Aziz, Georg M Schmölzer
BACKGROUND: Early studies suggest an association of abnormal carbon dioxide (PCO2) or oxygen (PO2) levels with adverse inpatient outcomes in very preterm babies. Recent resuscitation practice changes, such as targeted oxygen therapy, end-expiratory pressure, and rescue surfactant may influence these associations. OBJECTIVE: The aim of this study is to assess the range of the initial partial pressures of PCO2 and PO2 in preterm neonates <33 weeks gestational age after birth and their correlation to inpatient neonatal outcomes...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28236630/growth-attainment-in-german-children-born-preterm-and-cardiovascular-risk-factors-in-adolescence-analysis-of-the-population-representative-kiggs-data
#6
Renate L Bergmann, Karl E Bergmann, Rolf Richter, Martin Schlaud, Wolfgang Henrich, Alexander Weichert
AIM: To compare the growth attainment of preterm children and their cardiovascular risk factors at adolescence with the values measured in term children in Germany. METHODS: About 17,641 children aged 0 to <18 years were studied between 2003 and 2006 in the population representative German KiGGS survey ("German Health Interview and Examination Survey for Children and Adolescents") using questionnaires, physical examinations, standardized anthropometric and blood pressure measurements, and blood sample analyses...
February 25, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28223467/hypertension-in-pregnancy-and-offspring-cardiovascular-risk-in-young-adulthood-prospective-and-sibling-studies-in-the-hunt-study-nord-tr%C3%A3-ndelag-health-study-in-norway
#7
Ingvild V Alsnes, Lars J Vatten, Abigail Fraser, Johan Håkon Bjørngaard, Janet Rich-Edwards, Pål R Romundstad, Bjørn O Åsvold
Women with hypertensive disorders in pregnancy are at increased lifetime risk for cardiovascular disease. We examined the offspring's cardiovascular risk profile in young adulthood and their siblings' cardiovascular risk profile. From the HUNT study (Nord-Trøndelag Health Study) in Norway, 15 778 participants (mean age: 29 years), including 210 sibling groups, were linked to information from the Medical Birth Registry of Norway. Blood pressure, anthropometry, serum lipids, and C-reactive protein were assessed...
February 21, 2017: Hypertension
https://www.readbyqxmd.com/read/28211916/role-of-endothelial-nitric-oxide-synthase-and-endothelin-1-polymorphism-genes-with-the-pathogenesis-of-intraventricular-hemorrhage-in-preterm-infants
#8
Dawid Szpecht, Janusz Gadzinowski, Agnieszka Seremak-Mrozikiewicz, Grażyna Kurzawińska, Marta Szymankiewicz
In the pathogenesis of neonatal intraventricular hemorrhage (IVH) in preterm infants, an important role is played by changes in venous and arterial cerebral flows. It has been shown that the ability of autoregulation of cerebral flows in response to variations in arterial blood pressure in preterm infants is impaired. This impaired autoregulation causes an increased risk of germinal matrix rupture and IVH occurrence. We examined three polymorphisms of genes, related to regulation of blood flow, for an association with IVH in 100 preterm infants born from singleton pregnancy, before 32 + 0 weeks of gestation, exposed to antenatal steroids therapy, and without congenital abnormalities...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28203337/comparison-of-the-efficacy-of-three-natural-surfactants-curosurf-survanta-and-alveofact-in-the-treatment-of-respiratory-distress-syndrome-among-neonates-a-randomized-controlled-trial
#9
Mirhadi Mussavi, Keyvan Mirnia, Khairollah Asadollahi
BACKGROUND: Although several different types of natural surfactants are available, including Alveofact, Curosurf, and Survanta, the preferred type and the magnitude of their effects are unknown. OBJECTIVES: This study was designed to compare the effects of these three surfactants on the gas exchange and clinical outcomes of neonates with respiratory distress syndrome (RDS). METHODS: This triple-blind randomized clinical trial studied all preterm neonates ≤ 37 weeks with RDS who were admitted to the neonatal intensive care unit (NICU) of Taleghani hospital (Tabriz, Iran) between 2012 and 2013...
October 2016: Iranian Journal of Pediatrics
https://www.readbyqxmd.com/read/28203328/blood-pressure-profile-in-the-7th-and-11th-year-of-life-in-children-born-prematurely
#10
Maja Gilarska, Malgorzata Klimek, Dorota Drozdz, Andrzej Grudzien, Przemko Kwinta
BACKGROUND: Several research trials have analyzed the impact of prematurity on the prevalence of hypertension (HT). However, prospective long-term studies are lacking. OBJECTIVES: The aim of this study was to evaluate the prevalence of HT at the age of 7 and 11 years in a regional cohort of preterm infants with a birth weight of ≤ 1000 g. PATIENTS AND METHODS: This study included 67 children with a birth weight of ≤ 1000 g who were born in Malopolska between September 2002 and August 2004...
October 2016: Iranian Journal of Pediatrics
https://www.readbyqxmd.com/read/28196391/pentoxifylline-treatment-of-very-low-birth-weight-neonates-with-nosocomial-sepsis
#11
Şahin Hamilçıkan, Emrah Can, Övgü Büke, Meltem Erol, Özlem Bostan Gayret
Objective The objective of this study was to assess the result of intravenous pentoxifylline as an adjunct to antibiotic therapy on mortality and morbidity in very low birth weight (VLBW) preterm neonates with nosocomial sepsis. Methods For the 18 VLBW preterm neonates, as an adjunct therapy to antibiotics regimens, pentoxifylline (5 mg/kg/h for 6 hours) was administered to premature infants with sepsis on 3 successive days. Clinical and laboratory parameters were recorded before and after treatment. Results Following pentoxifylline therapy, the immature-to-total neutrophil ratio and C-reactive protein (CRP) levels were significantly decreased, while the blood pH and base excess were significantly increased (p < 0...
February 14, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28193574/effects-of-preterm-birth-and-fetal-growth-retardation-on-life-course-cardiovascular-risk-factors-among-schoolchildren-from-colombia-the-fuprecol-study
#12
Robinson Ramírez-Vélez, Jorge Enrique Correa-Bautista, Emilio Villa-González, Javier Martínez-Torres, Anthony C Hackney, Antonio García-Hermoso
BACKGROUND: Both fetal growth restriction and prematurity have been associated with cardiometabolic risk in youth and adults, however, data on their combined effects on cardiometabolic health in youth are scarce. AIMS: This study aimed at assessing the effects of birth weight and gestational age combined on life-course cardiovascular risk factors and obesity among schoolchildren from Colombia. STUDY DESIGN: A cross-sectional study. SUBJECTS: Participants comprised 2510 Colombian schoolchildren (54...
February 10, 2017: Early Human Development
https://www.readbyqxmd.com/read/28164084/comparison-of-phenylephrine-and-ephedrine-in-treatment-of-spinal-induced-hypotension-in-high-risk-pregnancies-a-narrative-review
#13
REVIEW
Sasima Dusitkasem, Blair H Herndon, Monsicha Somjit, David L Stahl, Emily Bitticker, John C Coffman
PURPOSE: To compare maternal and fetal effects of intravenous phenylephrine and ephedrine administration during spinal anesthesia for cesarean delivery in high-risk pregnancies. SOURCE: An extensive literature search was conducted using the US National Library of Medicine, MEDLINE search engine, Cochrane review, and Google Scholar using search terms "ephedrine and phenylephrine," "preterm and term and spinal hypotension," "preeclampsia and healthy parturients," or "multiple and singleton gestation and vasopressor...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28137987/diagnostic-performance-of-placental-growth-factor-in-women-with-suspected-preeclampsia-attending-antenatal-facilities-in-maputo-mozambique
#14
U Vivian Ukah, Francisco Mbofana, Beatriz Manriquez Rocha, Osvaldo Loquiha, Chishamiso Mudenyanga, Momade Usta, Marilena Urso, Sharla Drebit, Laura A Magee, Peter von Dadelszen
In well-resourced settings, reduced circulating maternal-free placental growth factor (PlGF) aids in either predicting or confirming the diagnosis of preeclampsia, fetal growth restriction, stillbirth, preterm birth, and delivery within 14 days of testing when preeclampsia is suspected. This blinded, prospective cohort study of maternal plasma PlGF in women with suspected preeclampsia was conducted in antenatal clinics in Maputo, Mozambique. The primary outcome was the clinic-to-delivery interval. Other outcomes included: confirmed diagnosis of preeclampsia, transfer to higher care, mode of delivery, intrauterine fetal death, preterm birth, and low birth weight...
March 2017: Hypertension
https://www.readbyqxmd.com/read/28120286/adverse-perinatal-outcomes-and-postpartum-multi-systemic-dysregulation-adding-vitamin-d-deficiency-to-the-allostatic-load-index
#15
Eynav Elgavish Accortt, James Mirocha, Christine Dunkel Schetter, Calvin J Hobel
Background Allostatic load (AL) is an index of multi-system physiological "wear-and-tear," operationalizing emergent chronic disease risk and predicting morbidity and mortality. AL has been proposed as an organizing framework for studying pregnancy outcomes and additional AL biomarkers for the study of maternal health would be valuable. Objectives To test whether adverse perinatal outcomes are associated with postpartum AL and if including vitamin D deficiency (serum 25(OH)D < 20 ng/ml) as an additional marker of postpartum AL increases the association...
January 24, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/28115515/does-extremely-low-birth-weight-predispose-to-low-renin-hypertension
#16
Anke Raaijmakers, Zhen-Yu Zhang, Jolien Claessens, Nicholas Cauwenberghs, Theun Pieter van Tienoven, Fang-Fei Wei, Lotte Jacobs, Elena Levtchenko, Steven Pauwels, Tatiana Kuznetsova, Karel Allegaert, Jan A Staessen
Low birth weight and prematurity are risk factors for hypertension in adulthood. Few studies in preterm or full-term born children reported on plasma renin activity (PRA). We tested the hypothesis that renin might modulate the incidence of hypertension associated with prematurity. We enrolled 93 prematurely born children with birth weight <1000 g and 87 healthy controls born at term, who were all examined at ≈11 years. Renal length and glomerular filtration rate derived from serum cystatin C were 0.28 cm (95% confidence interval, 0...
March 2017: Hypertension
https://www.readbyqxmd.com/read/28115513/proton-pump-inhibitors-decrease-soluble-fms-like-tyrosine-kinase-1-and-soluble-endoglin-secretion-decrease-hypertension-and-rescue-endothelial-dysfunction
#17
Kenji Onda, Stephen Tong, Sally Beard, Natalie Binder, Masanaga Muto, Sevvandi N Senadheera, Laura Parry, Mark Dilworth, Lewis Renshall, Fiona Brownfoot, Roxanne Hastie, Laura Tuohey, Kirsten Palmer, Toshihiko Hirano, Masahito Ikawa, Tu'uhevaha Kaitu'u-Lino, Natalie J Hannan
Preeclampsia is a severe complication of pregnancy. Antiangiogenic factors soluble fms-like tyrosine kinase-1 (sFlt-1) and soluble endoglin are secreted in excess from the placenta, causing hypertension, endothelial dysfunction, and multiorgan injury. Oxidative stress and vascular inflammation exacerbate the endothelial injury. A drug that can block these pathophysiological steps would be an attractive treatment option. Proton pump inhibitors (PPIs) are safe in pregnancy where they are prescribed for gastric reflux...
March 2017: Hypertension
https://www.readbyqxmd.com/read/28115028/post-transitional-adaptation-of-the-left-heart-in-uncomplicated-very-preterm-infants
#18
Koert De Waal, Nilkant Phad, Anil Lakkundi, Peter Tan
BACKGROUND: The postnatal period in preterm infants involves multiple physiological changes occurring immediately after birth and continuing for days or weeks. To recognise and treat compromise, it is important to measure cardiovascular function. The aim of this study was to describe longitudinal left ventricular function using conventional and novel echocardiography techniques in preterm infants who did not experience significant antenatal or postnatal complications and treatments. METHODS: We prospectively obtained cardiac ultrasound images at days 3, 7, 14, 21, and 28 in 25 uncomplicated, preterm infants <30 weeks of gestation...
January 24, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28099428/biomarkers-of-adiposity-are-elevated-in-preterm-very-low-birth-weight-infants-at-1-2-and-3-years-of-age
#19
Andrea F Duncan, Joshua A Frankfurt, Roy J Heyne, Charles R Rosenfeld
BACKGROUND: Preterm, very-low-birth-weight (PT-VLBW) neonates are at-risk for metabolic syndrome later in life. At 1-3yrs, they exhibit excessive weight-for-length z-scores (Wt-LZ) and elevated systolic blood pressures (SBP). Serum adipokines are biomarkers of adiposity, but expression in PT-VLBW infants is unclear. We examined the correlation between serum adipokine levels, anthropometric measures and SBP in PT-VLBW neonates at follow-up. METHODS: This was a cross-sectional cohort study of PT-VLBW infants at 1, 2 and 3yrs of age (40/cohort)...
January 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28094441/sex-drugs-and-rock-and-roll-tales-from-preterm-fetal-life
#20
Laura Bennet
Premature fetuses and babies are at greater risk of mortality and morbidity than their term counterparts. The underlying causes are multifactorial, but include exposure to hypoxia. Immaturity of organs and their functional control may impair the physiological defence responses to hypoxia and the preterm fetal responses, or lack thereof, to moderate hypoxia appear to support this concept. However, as this review demonstrates, despite immaturity, the preterm fetus responds to asphyxia in a qualitatively similar manner to that seen at term...
March 15, 2017: Journal of Physiology
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