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Ventilation AND preterm

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https://www.readbyqxmd.com/read/28437301/dexmedetomidine-a-solution-to-the-dilemma-of-pain-and-agitation-in-the-mechanically-ventilated-preterm-neonate
#1
Sara E Rostas
No abstract text is available yet for this article.
April 2017: Journal of Perinatal & Neonatal Nursing
https://www.readbyqxmd.com/read/28424764/diffusion-tensor-imaging-colour-mapping-threshold-for-identification-of-ventilation-induced-brain-injury-after-intrauterine-inflammation-in-preterm-lambs
#2
Dhafer M Alahmari, Beatrice Skiöld, Samantha K Barton, Ilias Nitsos, Courtney McDonald, Suzanne L Miller, Valerie Zahra, Robert Galinsky, Qizhu Wu, Michael John Farrell, Timothy J Moss, Stuart B Hooper, James T Pearson, Graeme R Polglase
PURPOSE: The aim of this study is to examine whether advanced magnetic resonance imaging (MRI) techniques can detect early brain injury caused by intrauterine inflammation and inappropriate initial respiratory support in preterm lambs. HYPOTHESIS: Neuropathology caused by intrauterine inflammation is exacerbated by mechanical ventilation at birth and is detectable with advanced MRI techniques. METHODS: Pregnant ewes received intra-amniotic lipopolysaccharide (LPS) 7 days prior to delivery at ~125 days of gestation (85% of gestation), whereupon lambs were delivered and randomised to receive an injurious (LPS + INJ, n = 6) or protective (LPS + PROT, n = 6) ventilation strategy...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28421173/cerebral-autoregulation-brain-injury-and-the-transitioning-premature-infant
#3
REVIEW
Zachary A Vesoulis, Amit M Mathur
Improvements in clinical management of the preterm infant have reduced the rates of the two most common forms of brain injury, such as severe intraventricular hemorrhage and white matter injury, both of which are contributory factors in the development of cerebral palsy. Nonetheless, they remain a persistent challenge and are associated with a significant increase in the risk of adverse neurodevelopment outcomes. Repeated episodes of ischemia-reperfusion represent a common pathway for both forms of injury, arising from discordance between systemic blood flow and the innate regulation of cerebral blood flow in the germinal matrix and periventricular white matter...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28410573/risk-factors-for-necrotizing-enterocolitis-in-neonates-a-systematic-review-of-prognostic-studies
#4
Noor Samuels, Rob A van de Graaf, Rogier C J de Jonge, Irwin K M Reiss, Marijn J Vermeulen
BACKGROUND: Necrotizing enterocolitis (NEC) is a severe multifactorial disease in preterm neonates associated with high morbidity and mortality. Better insight into prognostic values of the many reported factors associated with NEC is needed to enable identification of neonates at risk for NEC. The aim was to systematically review the literature to identify independent risk factors for NEC from the literature. METHODS: Medline, Cochrane, Embase, Pubmed and Google Scholar were searched systematically for cohort studies reporting prognostic factors for NEC in neonates using multivariable analysis...
April 14, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28399457/cumulative-pain-related-stress-and-developmental-outcomes-among-low-risk-preterm-infants-at-one-year-corrected-age
#5
Iris Morag, Ifat Rotem, Mor Frisch, Israel Hendler, Michal J Simchen, Leah Leibovitz, Ayala Maayan-Metzger, Tzipora Strauss
BACKGROUND: Extensive exposure of preterm infants to pain-related stress (PRS) at a time of physiological immaturity and rapid brain development may contribute to altered neurodevelopment. OBJECTIVE: To examine the relationship between early PRS and neurodevelopmental outcomes among low-risk very preterm infants at the age of one year corrected age (CA). METHODS: Participants included 107 infants born <32weeks gestational age (GA) and monitored prospectively at 12...
April 8, 2017: Early Human Development
https://www.readbyqxmd.com/read/28399118/feasibility-and-physiological-effects-of-non-invasive-neurally-adjusted-ventilatory-assist-niv-nava-in-preterm-infants
#6
Christopher Gibu, Phillip Cheng, Raymond J Ward, Benjamin Castro, Gregory P Heldt
BACKGROUND: Non-invasive Neurally Adjusted Ventilator Assist (NIV-NAVA) was introduced to our clinical practice via a pilot and a randomized observational study to assess its safety, feasibility, and short term physiological effects. METHODS: The pilot protocol applied NIV-NAVA to 11 infants on nasal CPAP, high-flow nasal cannula (HFNC), or nasal IMV (NIMV), in multiple 2-4 h periods of NIV-NAVA for comparison. This provided the necessary data to design a randomized, controlled observational cross-over study in 8 additional infants to compare the physiological effects of NIV-NAVA to NIMV during 2-hour steady state conditions...
April 11, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28395175/oxygen-and-oxidative-stress-in-the-perinatal-period
#7
REVIEW
Isabel Torres-Cuevas, Anna Parra-Llorca, Angel Sánchez-Illana, Antonio Nuñez-Ramiro, Julia Kuligowski, Consuelo Cháfer-Pericás, María Cernada, Justo Escobar, Máximo Vento
Fetal life evolves in a hypoxic environment. Changes in the oxygen content in utero caused by conditions such as pre-eclampsia or type I diabetes or by oxygen supplementation to the mother lead to increased free radical production and correlate with perinatal outcomes. In the fetal-to-neonatal transition asphyxia is characterized by intermittent periods of hypoxia ischemia that may evolve to hypoxic ischemic encephalopathy associated with neurocognitive, motor, and neurosensorial impairment. Free radicals generated upon reoxygenation may notably increase brain damage...
March 12, 2017: Redox Biology
https://www.readbyqxmd.com/read/28391538/efficacy-of-palivizumab-prophylaxis-on-the-frequency-of-rsv-associated-lower-respiratory-tract-infections-in-preterm-infants-determination-of-the-ideal-target-population-for-prophylaxis
#8
M Cetinkaya, T K Oral, S Karatekin, B Cebeci, A Babayigit, Y Yesil
Respiratory syncytial virus (RSV) prophylaxis in high-risk infants is an effective intervention for the prevention of severe disease. The aim of this study was to determine the ideal target preterm population that might benefit from palivizumab prophylaxis by establishing the main risk factors for acute RSV-related infections. Former premature infants born with a gestational age ≤37 weeks and ≤1 year of age at the beginning of the RSV season and admitted with respiratory infection were included. RSV status was evaluated by RSV strip test in all infants...
April 8, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28371672/determinants-of-pulmonary-dead-space-in-ventilated-newborn-infants
#9
Theodore Dassios, Ourania Kaltsogianni, Anne Greenough
BACKGROUND: Pulmonary dead space (VD) is an index of ventilation inhomogeneity and one of the determinants of the magnitude of tidal volume to maintain optimal blood gases. AIMS: To identify the determinants of VD in ventilated newborns and to investigate differences in VD between prematurely born and term infants and those prematurely born infants who did or did not develop bronchopulmonary dysplasia (BPD). METHODS: Sixty-one mechanically ventilated infants (15 term, 46 preterm) were studied at a median age of 8 (IQR 2-31) days; 32 of the preterm infants developed BPD...
March 31, 2017: Early Human Development
https://www.readbyqxmd.com/read/28370347/velocity-vector-imaging-shows-normal-cardiac-systolic-function-in-survivors-of-severe-bronchopulmonary-dysplasia-at-6-16-years-of-age
#10
Piia Suursalmi, Tiina Ojala, Tuija Poutanen, Anneli Eerola, Päivi Korhonen, Tarja Kopeli, Outi Tammela
AIM: This study evaluated global myocardial function and associations between cardiac function and lung function in very low birth weight (VLBW) children, with and without severe radiographic bronchopulmonary dysplasia (BPD), at 6-14 years of age. METHODS: We studied 34 VLBW and 19 term-born controls and the VLBW group was further divided into a BPD group with severe radiographic BPD and those without radiographic BPD in infancy. Detailed right and left ventricular myocardial function was analysed by velocity vector imaging and the left ventricular mass was calculated...
March 31, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28367357/resuscitation-with-intact-placental-circulation-in-a-preterm-infant-with-hydrops-fetalis
#11
Simone Pratesi, Iuri Corsini, Caterina Coviello, Silvia Perugi, Carlo Dani
A preterm infant with prenatal diagnosis of hydrops fetalis was spontaneously delivered at 30 weeks of gestational age in a tertiary level hospital. Prenatal echography pointed out severe bilateral pleural effusions and diffused subcutaneous edema. A neonatologist team, alerted at the expulsion stage of labor, assisted the neonate immediately after birth and bilateral hydrothorax was drained with intact placental circulation to avoid a nonrespiratory period and its possible detrimental hemodynamic effects. The newborn was well stabilized in the delivery room before cutting the umbilical cord and starting mechanical ventilation...
January 2017: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/28367295/development-of-pulmonary-air-leak-in-an-extremely-low-birth-weight-infant-without-mechanical-ventilation-a-case-report
#12
Eun Mi Kim, Ji Yeon Kim
A 34-year-old woman at 25 weeks 3 days was diagnosed with preterm labor and underwent an emergency cesarean section. The neonate did not cry or show any activity. The heart rate was 80 beats/min and the oxygen saturation on pulse oximetry (SpO2) was 77%. Immediately, positive pressure ventilation was delivered by T piece resuscitator, and then anesthesiologist performed endotracheal intubation. The neonate demonstrated severe cyanosis and the SpO2 dropped to 30%. Ventilation was not successful even after intubation, and we found neck crepitus, chest wall distension, and severe cyanosis on physical examination...
April 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/28359356/nutritional-approach-to-preterm-infants-on-noninvasive-ventilation-an-update
#13
REVIEW
Valentina Bozzetti, Chiara De Angelis, Paolo E Tagliabue
Nutrition and pulmonary function in very-low-birth-weight infants (VLBWIs) are strictly related. Preterm infants on noninvasive ventilation may have respiratory instability that can interfere with feeding tolerance. Moreover, feeding may impair pulmonary function. These infants have nutritional requirements different from nonventilated infants. The main challenge of the nutritional support in such patients is to guarantee adequate caloric intake while avoiding episodes of feeding intolerance. The aim of this study was to review the issues and strategies of enteral feeding of preterm infants on noninvasive ventilation...
May 2017: Nutrition
https://www.readbyqxmd.com/read/28352342/different-ventilation-modes-combined-with-ambroxol-in-the-treatment-of-respiratory-distress-syndrome-in-premature-infants
#14
Bin Zhou, Jing-Fang Zhai, Jie-Bin Wu, Bao Jin, Yan-Yan Zhang
The aim of the present study was to compare the effectiveness of different modes of mechanical ventilation in combination with secretolytic therapy with ambroxol in premature infants with respiratory distress syndrome. Seventy-three premature infants with hyaline membrane disease (HMD) (stage III-IV), also known as respiratory distress syndrome, who were supported by mechanical ventilation in the neonatal intensive care unit (NICU) of Xuzhou Central Hospital, were involved in the present study, between January 2013 and February 2015...
February 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28346912/optimizing-the-dose-of-erythropoietin-required-to-prevent-acute-ventilation-induced-cerebral-white-matter-injury-in-preterm-lambs
#15
Kyra Y Y Chan, Domenic A LaRosa, Mary Tolcos, Anqi Li, Valerie A Zahra, Graeme R Polglase, Samantha K Barton
Erythropoietin (EPO) is being trialed in preterm neonates for neuroprotection. We have recently demonstrated that a single high bolus dose (5,000 IU/kg) of recombinant human EPO amplified preterm lung and brain ventilation-induced injury. We aimed to determine the optimal dose of EPO to reduce ventilation-induced cerebral white matter inflammation and injury in preterm lambs. Lambs (0.85 gestation) were ventilated with an injurious strategy for 15 min followed by conventional ventilation for 105 min. Lambs were randomized to no treatment (VENT; n = 8) or received a bolus dose of EPO (EPREX®): 300 IU/kg (EPO 300; n = 5), 1,000 IU/kg (EPO 1,000; n = 5), or 3,000 IU/kg (EPO 3,000; n = 5)...
March 28, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28346529/human-amnion-epithelial-cells-modulate-the-inflammatory-response-to-ventilation-in-preterm-lambs
#16
Jacqueline M Melville, Courtney A McDonald, Robert J Bischof, Graeme R Polglase, Rebecca Lim, Euan M Wallace, Graham Jenkin, Timothy J Moss
Ventilation of preterm neonates causes pulmonary inflammation that can contribute to lung injury, propagate systemically and result in long-term disease. Modulation of this initial response may reduce lung injury and its sequelae. We aimed to determine the effect of human amnion epithelial cells (hAECs) on immune activation and lung injury in preterm neonatal lambs. Preterm lambs received intratracheal hAECs (90x106) or vehicle, prior to 2 h of mechanical ventilation. Within 5 min of ventilation onset, lambs also received intravenous hAECs (90x106) or vehicle...
2017: PloS One
https://www.readbyqxmd.com/read/28343335/a-new-infant-hybrid-respiratory-simulator-preliminary-evaluation-based-on-clinical-data
#17
Barbara Stankiewicz, Krzysztof J Pałko, Marek Darowski, Krzysztof Zieliński, Maciej Kozarski
A new hybrid (numerical-physical) simulator of the respiratory system, designed to simulate spontaneous and artificial/assisted ventilation of preterm and full-term infants underwent preliminary evaluation. A numerical, seven-compartmental model of the respiratory system mechanics allows the operator to simulate global and peripheral obstruction and restriction of the lungs. The physical part of the simulator is a piston-based construction of impedance transformer. LabVIEW real-time software coordinates the work of both parts of the simulator and its interaction with a ventilator...
March 25, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28332298/impact-of-maternal-obesity-on-very-preterm-infants
#18
Rubia Khalak, Asha Rijhsinghani, Sarah E McCallum
OBJECTIVE: Infants born at less than  34 weeks' gestational age are at higher risk for morbidity and mortality. Data are limited on the impact of maternal obesity on the very preterm infant. This study reviewed whether maternal obesity further increases the intensive care needs of very preterm infants of less than 34 weeks' gestation. METHODS: Maternal and neonatal data for live-born singleton births of 23 0/7 to 33 6/7 weeks' gestation delivering in upstate New York were reviewed...
March 22, 2017: Obesity
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
#19
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/28329427/what-drives-perceived-work-intensity-in-neonatal-intensive-care-units-empirical-evidence-from-a-longitudinal-study
#20
Sandra Sülz, Kristina Langhammer, Michael Becker-Peth, Bernhard Roth
AIM: To investigate the drivers of perceived work intensity among neonatal intensive care unit nurses. BACKGROUND: The consequences of high work intensity have been studied extensively, yet setting-specific drivers have received less attention. DESIGN: Prospective, longitudinal and monocentric study design. METHODS: The study combined data from standardized diary surveys and passive observations of study nurses. Data were collected over a period of 6 months in 2015...
March 22, 2017: Journal of Advanced Nursing
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