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https://www.readbyqxmd.com/read/29454185/preterm-infants-undergoing-laparotomy-for-necrotizing-enterocolitis-or-spontaneous-intestinal-perforation-display-evidence-of-impaired-cerebrovascular-autoregulation
#1
Sara J Kuik, Michelle E van der Laan, Margot T Brouwer-Bergsma, Jan B F Hulscher, Anthony R Absalom, Arend F Bos, Elisabeth M W Kooi
BACKGROUND: Preterm infants requiring surgery are at risk of impaired neurocognitive development caused, possibly, by cerebral ischemia associated with impaired cerebrovascular autoregulation (CAR). We evaluated CAR before, during, and after laparotomy. STUDY DESIGN: This was a hypothesis generating prospective observational cohort study. SUBJECTS: We included preterm infants requiring surgery for necrotizing enterocolitis (NEC) or spontaneous intestinal perforation (SIP)...
February 14, 2018: Early Human Development
https://www.readbyqxmd.com/read/29450194/avoiding-arterial-hypotension-in-preterm-neonates-ahip-a-single-center-randomised-controlled-study-investigating-simultaneous-near-infrared-spectroscopy-measurements-of-cerebral-and-peripheral-regional-tissue-oxygenation-and-dedicated-interventions
#2
Gerhard Pichler, Nina Höller, Nariae Baik-Schneditz, Bernhard Schwaberger, Lukas Mileder, Jasmin Stadler, Alexander Avian, Jasmin Pansy, Berndt Urlesberger
Introduction: Up to 50% of preterm infants admitted to intensive care units require cardiocirculatory support. The aim of the present study was to assess whether simultaneous monitoring of cerebral tissue oxygenation index (cTOI) and peripheral tissue oxygenation index (pTOI) using near-infrared spectroscopy (NIRS) in combination with dedicated intervention guidelines may help avoiding arterial hypotension and catecholamine administration in preterm neonates. Study design: Preterm neonates <37 weeks of gestation were included in a single center randomized controlled study...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29428336/genetic-variations-of-mthfr-gene-and-their-association-with-preterm-birth-in-korean-women
#3
In Wook Hwang, Yun Dan Kang, Bit Na Kwon, Jun Ho Hong, Seung Hun Han, Jong Soo Kim, Jin Wan Park, Han Jun Jin
BACKGROUND AND OBJECTIVE: The MTHFR gene encodes the methylenetetrahydrofolate reductase known to be involved in the homocysteine-methionine pathway. It has been reported that the deficiency of MTHFR activity may cause hyperhomocysteinemia which results in adverse pregnancy outcomes. Previous studies reported a correlation between the MTHFR gene polymorphisms (677 T/C and 1298 A/C) and lower MTHFR activity and its association with preterm birth in various populations. Since these results were conflicting, we analyzed the genetic association of MTHFR gene 677 T/C and 1298 A/C polymorphisms with preterm birth in Korean women...
February 3, 2018: Medicina
https://www.readbyqxmd.com/read/29413869/association-between-cognition-and-the-retinal-microvasculature-in-11-year-old-children-born-preterm-or-at-term
#4
Fang-Fei Wei, Anke Raaijmakers, Zhen-Yu Zhang, Theun Pieter van Tienoven, Qi-Fang Huang, Wen-Yi Yang, Lutgarde Thijs, Harry A J Struijker-Boudier, Peter Verhamme, Karel Allegaert, Jan A Staessen
BACKGROUND: Retinal microvessels can be visualized non-invasively and mirror the status of the cerebral microvasculature. AIMS: To investigate whether in young children born prematurely or at term cognitive performance is related to retinal microvascular traits. STUDY DESIGN, SUBJECTS: In 93 prematurely born infants (birth weight < 1000 g) and 87 controls born at term, we measured head circumference (HC) and determined intelligence quotient (IQ) by combining matrix reasoning and spatial span (Wechsler Non-Verbal test, Dutch version) and post-processed retinal photographs using Singapore I Vessel Assessment software (version 3...
February 3, 2018: Early Human Development
https://www.readbyqxmd.com/read/29398426/the-influence-of-fluid-management-on-outcomes-in-preeclampsia-a-systematic-review-and-meta-analysis
#5
T Pretorius, G van Rensburg, R A Dyer, B M Biccard
BACKGROUND: The optimal fluid management strategy to ensure best outcomes in preeclamptic patients remains a controversial issue, with little evidence to support any one approach. OBJECTIVE: The aim of this systematic review was to investigate the effect of various fluid management strategies on clinical outcomes, haemodynamic indices and biochemical markers in preeclamptic women and their babies. Primary outcome measures were the occurrence of pulmonary oedema and/or the development of renal impairment...
December 20, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/29381407/premature-birth-and-circadian-preference-in-young-adulthood-evidence-from-two-birth-cohorts
#6
Johan Björkqvist, Anu-Katriina Pesonen, Liisa Kuula, Hanna-Maria Matinolli, Aulikki Lano, Marika Sipola-Leppänen, Marjaana Tikanmäki, Dieter Wolke, Marjo-Riitta Järvelin, Johan G Eriksson, Sture Andersson, Marja Vääräsmäki, Kati Heinonen, Katri Räikkönen, Petteri Hovi, Eero Kajantie
A preference for eveningness (being a "night owl") and preterm birth (<37 weeks of gestation) are associated with similar adversities, such as elevated blood pressure, impaired glucose regulation, poorer physical fitness, and lower mood. Yet, it remains unclear if and how preterm birth is associated with circadian preference. The aim of this study was to assess this association across the whole gestation range, using both objective and subjective measurements of circadian preference. Circadian preference was measured among 594 young adults (mean age 24...
January 30, 2018: Chronobiology International
https://www.readbyqxmd.com/read/29377552/cardiorespiratory-fitness-exercise-hemodynamics-and-birth-outcomes-the-coronary-artery-risk-development-in-young-adults-cardia-study
#7
Abbi D Lane-Cordova, Mercedes R Carnethon, Janet M Catov, Samantha Montag, Cora E Lewis, Pamela J Schreiner, Annie Dude, Barbara Sternfeld, Sylvia E Badon, Philip Greenland, Erica P Gunderson
OBJECTIVE: Determine associations of cardiorespiratory fitness, exercise systolic blood pressure (SBP), and heart rate recovery (HRR) following a maximal exercise test performed years preceding pregnancy with odds of preterm birth (PTB; <37 weeks gestation) and small for gestational age (SGA; birthweight <10th percentile) delivery. DESIGN: Prospective, longitudinal. SETTING: Multi-site, observational cohort study initially consisting of 2,787 Black and White women aged 18-30 at baseline (1985-86) and followed for 25 years (Y25; 2010-11)...
January 29, 2018: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29374830/correlations-between-near-infrared-spectroscopy-perfusion-index-and-cardiac-outputs-in-extremely-preterm-infants-in-the-first-72%C3%A2-h-of-life
#8
Marie Janaillac, Thierry P Beausoleil, Keith J Barrington, Marie-Josée Raboisson, Oliver Karam, Mathieu Dehaes, Anie Lapointe
Haemodynamic assessment during the transitional period in preterm infants is challenging. We aimed to describe the relationships between cerebral regional tissue oxygen saturation (CrSO2), perfusion index (PI), echocardiographic, and clinical parameters in extremely preterm infants in their first 72 h of life. Twenty newborns born at < 28 weeks of gestation were continuously monitored with CrSO2 and preductal PI. Cardiac output was measured at H6, H24, H48, and H72. The median gestational age and birth weight were 25...
January 27, 2018: European Journal of Pediatrics
https://www.readbyqxmd.com/read/29353231/the-preterm-heart-in-childhood-left-ventricular-structure-geometry-and-function-assessed-by-echocardiography-in-6-year-old-survivors-of-periviable-births
#9
Lilly-Ann Mohlkert, Jenny Hallberg, Olof Broberg, Annika Rydberg, Cecilia Pegelow Halvorsen, Petru Liuba, Vineta Fellman, Magnus Domellöf, Gunnar Sjöberg, Mikael Norman
BACKGROUND: Preterm birth has been associated with increased risk of cardiovascular morbidity in adult life. We evaluated whether preterm birth is associated with deviating cardiac structure and function before school start. METHODS AND RESULTS: In total, 176 children aged 6 years and born extremely preterm (EXPT; gestational age of 22-26 weeks) and 134 children born at term (control [CTRL]) were studied. We used echocardiography to assess left heart dimensions, geometry, and functions...
January 20, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29330635/hypotension-due-to-spinal-anesthesia-influences-fetal-circulation-in-primary-caesarean-sections
#10
K Lato, I Bekes, Peter Widschwendter, T W P Friedl, W Janni, F Reister, G Froeba, U Friebe-Hoffmann
PURPOSE: Hypotension due to spinal anesthesia is a well-known side effect in pregnant women receiving caesarean section. Little is known about its impact on fetal blood circulation. METHODS: 40 women with uncomplicated singleton term pregnancies prepared for caesarean section were prospectively evaluated by Doppler sonography before and immediately after spinal anesthesia. RESULTS: In 90% of the women, blood pressure significantly decreased after spinal anesthesia and 42...
January 12, 2018: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29324603/pregnancy-associated-hypertension-and-offspring-cardiometabolic-health
#11
Madeline Murguia Rice, Mark B Landon, Michael W Varner, Brian M Casey, Uma M Reddy, Ronald J Wapner, Dwight J Rouse, Alan T N Tita, John M Thorp, Edward K Chien, George Saade, Alan M Peaceman, Sean C Blackwell
OBJECTIVE: To evaluate whether pregnancy-associated hypertension (gestational hypertension and preeclampsia) was associated with the cardiometabolic health of young offspring. METHODS: This was a prospective observational follow-up study from 2012 to 2013 of children born to women previously enrolled in a mild gestational diabetes mellitus treatment trial or nongestational diabetes mellitus observational study. At 5-10 years after birth, children were examined and fasting blood samples obtained to determine the following cardiometabolic risk factors: blood pressure (BP), high-density lipoprotein cholesterol, triglycerides, glucose, homeostatic model assessment of insulin resistance, waist circumference, and body mass index (BMI)...
February 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29305253/chronic-hypertension-first-trimester-blood-pressure-control-and-likelihood-of-severe-hypertension-preeclampsia-and-small-for-gestational-age
#12
Diane Nzelu, Dan Dumitrascu-Biris, Kypros H Nicolaides, Nikos A Kametas
BACKGROUND: There is extensive evidence that pre-pregnancy chronic hypertension is associated with high risk of development of severe hypertension and preeclampsia and birth of small for gestational age neonates. However, previous studies have not reported whether anti-hypertensive use, blood pressure control or normalization of blood pressure during early pregnancy influence the rates of these pregnancy complications. OBJECTIVE: To stratify women with pre-pregnancy chronic hypertension according to the use of antihypertensive medications and level of blood pressure control at the first hospital visit during the first-trimester of pregnancy and examine the rates of severe hypertension, preeclampsia and birth of small for gestational age neonates according to such stratification...
January 2, 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29288157/history-of-adverse-pregnancy-outcomes-blood-pressure-and-subclinical-vascular-measures-in-late-midlife-swan-study-of-women-s-health-across-the-nation
#13
Yamnia I Cortés, Janet M Catov, Maria Brooks, Siobán D Harlow, Carmen R Isasi, Elizabeth A Jackson, Karen A Matthews, Rebecca C Thurston, Emma Barinas-Mitchell
BACKGROUND: Adverse pregnancy outcomes, such as preterm birth (PTB), have been associated with elevated risk of maternal cardiovascular disease, but their effect on late midlife blood pressure (BP) and subclinical vascular measures remains understudied. METHODS AND RESULTS: We conducted a cross-sectional analysis with 1220 multiethnic parous women enrolled in SWAN (Study of Women's Health Across the Nation) to evaluate the impact of self-reported history of adverse pregnancy outcomes (PTB, small-for-gestational-age, stillbirth), on maternal BP, mean arterial pressure, and subclinical vascular measures (carotid intima-media thickness, plaque, and pulse wave velocity) in late midlife...
December 29, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29259659/pregnancy-related-conditions-and-premature-coronary-heart-disease-in-adult-offspring
#14
Andriany Qanitha, Bastianus A J M de Mol, David P Burgner, Peter Kabo, Dara R Pabittei, Irawan Yusuf, Cuno S P M Uiterwaal
Objective: To investigate the association between complications during pregnancy and premature coronary heart disease in adult offspring. Methods: We conducted a population-based case-control study of 153 Indonesian patients with a first acute coronary syndrome (ACS) (age ≤55 years) and 153 age-matched and sex-matched controls. Data on complications during pregnancy (high blood pressure, preterm delivery) and maternal infections in pregnancy were obtained, together with sociodemographic data, clinical profiles, laboratory measurements and adulthood cardiovascular disease (CVD) risk factors at hospital admission or enrolment...
2017: Heart Asia
https://www.readbyqxmd.com/read/29229321/the-role-of-aspirin-heparin-and-other-interventions-in-the-prevention-and-treatment-of-fetal-growth-restriction
#15
REVIEW
Katie M Groom, Anna L David
Fetal growth restriction and related placental pathologies such as preeclampsia, stillbirth, and placental abruption are believed to arise in early pregnancy when inadequate remodeling of the maternal spiral arteries leads to persistent high-resistance and low-flow uteroplacental circulation. The consequent placental ischaemia, reperfusion injury, and oxidative stress are associated with an imbalance in angiogenic/antiangiogenic factors. Many interventions have centered on the prevention and/or treatment of preeclampsia with results pertaining to fetal growth restriction and small-for-gestational-age pregnancy often included as secondary outcomes because of the common pathophysiology...
December 8, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29209071/inhaled-nicotine-equivalent-to-cigarette-smoking-disrupts-systemic-and-uterine-hemodynamics-and-induces-cardiac-arrhythmia-in-pregnant-rats
#16
Xuesi M Shao, Héctor E López-Valdés, Jing Liang, Jack L Feldman
Maternal smoking with obligatory nicotine inhalation is associated with preterm delivery, low birth weight, fetal growth retardation and developmental defects. We tested the hypothesis that cigarette smoking-relevant nicotine inhalation during pregnancy impairs cardiovascular function and uterine hemodynamics with consequential fetal ischemia. Pregnant rats exposed to episodic inhaled nicotine via a novel lung alveolar region-targeted aerosol method produced nicotine pharmacokinetics resembling cigarette smoking in humans...
December 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29208663/haemodynamic-effects-of-umbilical-cord-milking-in-premature-sheep-during-the-neonatal-transition
#17
Douglas A Blank, Graeme R Polglase, Martin Kluckow, Andrew William Gill, Kelly J Crossley, Alison Moxham, Karyn Rodgers, Valerie Zahra, Ishmael Inocencio, Fiona Stenning, Domeic A LaRosa, Peter G Davis, Stuart B Hooper
OBJECTIVE: Umbilical cord milking (UCM) at birth may benefit preterm infants, but the physiological effects of UCM are unknown. We compared the physiological effects of two UCM strategies with immediate umbilical cord clamping (UCC) and physiological-based cord clamping (PBCC) in preterm lambs. METHODS: At 126 days' gestational age, fetal lambs were exteriorised, intubated and instrumented to measure umbilical, pulmonary and cerebral blood flows and arterial pressures...
December 5, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/29193660/preterm-birth-with-placental-evidence-of-malperfusion-is-associated-with-cardiovascular-risk-factors-after-pregnancy-a-prospective-cohort-study
#18
J M Catov, M F Muldoon, S E Reis, R B Ness, L N Nguyen, J-M Yamal, H Hwang, W T Parks
OBJECTIVE: Preterm birth (PTB) is associated with excess maternal cardiovascular disease risk. We considered that women with PTB and placental evidence of maternal malperfusion would be particularly affected. DESIGN: Pregnancy cohort study. SETTING: Pittsburgh, PA, USA. POPULATION: Women with PTB (n = 115) and term births (n = 210) evaluated 4-12 years after pregnancy. METHODS: Cardiometabolic risk markers were compared in women with prior PTB versus term births; pre-eclampsia and growth restriction cases were excluded...
November 28, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29191812/physiologically-based-cord-clamping-stabilises-cardiac-output-and-reduces-cerebrovascular-injury-in-asphyxiated-near-term-lambs
#19
Graeme R Polglase, Douglas A Blank, Samantha K Barton, Suzanne L Miller, Vanesa Stojanovska, Martin Kluckow, Andrew W Gill, Domenic LaRosa, Arjan B Te Pas, Stuart B Hooper
BACKGROUND: Physiologically based cord clamping (PBCC) has advantages over immediate cord clamping (ICC) during preterm delivery, but its efficacy in asphyxiated infants is not known. We investigated the physiology of PBCC following perinatal asphyxia in near-term lambs. METHODS: Near-term sheep fetuses (139±2 (SD) days' gestation) were instrumented to measure umbilical, carotid, pulmonary and femoral arterial flows and pressures. Systemic and cerebral oxygenation was recorded using pulse oximetry and near-infrared spectroscopy, respectively...
November 30, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/29186314/reproducibility-of-retinal-microvascular-traits-decoded-by-the-singapore-i-vessel-assessment-software-across-the-human-age-range
#20
Qi-Fang Huang, Fang-Fei Wei, Zhen-Yu Zhang, Anke Raaijmakers, Kei Asayama, Lutgarde Thijs, Wen-Yi Yang, Blerim Mujaj, Karel Allegaert, Peter Verhamme, Harry A J Struijker-Boudier, Yan Li, Jan A Staessen
BACKGROUND: Retinal microvascular traits predict adverse health outcomes. The Singapore I Vessel Assessment (SIVA) software improved automated post-processing of retinal photographs. In addition to microvessel caliber, it generates measures of arteriolar and venular geometry. Few studies addressed the reproducibility of SIVA measurements across a wide age range. METHODS: In the current study, two blinded graders read images obtained by nonmydriatic retinal photography twice in twenty 11-year old children, born prematurely (n = 10) or at term (n = 10) and in sixty adults (age range, 18...
November 24, 2017: American Journal of Hypertension
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