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Apnea of prematurity

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https://www.readbyqxmd.com/read/28330778/intratracheal-lps-administration-attenuates-the-acute-hypoxic-ventilatory-response-role-of-brainstem-il-1%C3%AE-receptors
#1
A P Ribeiro, C A Mayer, C G Wilson, R J Martin, P M MacFarlane
Perinatal inflammation and infection are commonly associated with various respiratory morbidities in preterm infants including apnea of prematurity. In this study, we investigated whether pulmonary inflammation via intra-tracheal micro-injection of lipopolysaccharide (LPS) into neonatal rats modifies respiratory neural control via an IL-1β receptor-dependent mechanism. Prior to an intra-tracheal micro-injection of LPS (1mg/kg), 10day old (Postnatal age, P10) rats received an intraperitoneal (i.p.) or intracisternal (i...
March 19, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28224405/complications-of-acromegaly-cardiovascular-respiratory-and-metabolic-comorbidities
#2
REVIEW
Rosario Pivonello, Renata S Auriemma, Ludovica F S Grasso, Claudia Pivonello, Chiara Simeoli, Roberta Patalano, Mariano Galdiero, Annamaria Colao
Acromegaly is associated with an enhanced mortality, with cardiovascular and respiratory complications representing not only the most frequent comorbidities but also two of the main causes of deaths, whereas a minor role is played by metabolic complications, and particularly diabetes mellitus. The most prevalent cardiovascular complications of acromegaly include a cardiomyopathy, characterized by cardiac hypertrophy and diastolic and systolic dysfunction together with arterial hypertension, cardiac rhythm disorders and valve diseases, as well as vascular endothelial dysfunction...
February 21, 2017: Pituitary
https://www.readbyqxmd.com/read/28215596/sex-specific-respiratory-effects-of-acute-and-chronic-caffeine-administration-in-newborn-rats
#3
REVIEW
Hayet Kouchi, NagaPraveena Uppari, Vincent Joseph, Aida Bairam
Caffeine is widely used for the treatment of apnea of prematurity (AoP) but whether this effect varies with sex is unknown. To shed some light on this question, we present a summary of data obtained on the effects of caffeine on the respiratory chemoreflexes and apnea frequency in 1- and 12-days old male and female rats. Caffeine was either administered as a single acute injection (10mg/kg, i.p.) or for 10 consecutive days (7.5mg/kg/day between 3 and 12days of life by gavage, simulating its clinical use). Acute caffeine had little effects on breathing in 1-day old male and female rats...
February 16, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28215268/periodic-limb-movements-and-restless-legs-syndrome-in-children-with-a-history-of-prematurity
#4
Christopher M Cielo, Lourdes M DelRosso, Ignacio E Tapia, Sarah N Biggs, Gillian M Nixon, Lisa J Meltzer, Joel Traylor, Ji Young Kim, Carole L Marcus
INTRODUCTION: Little is known about the pediatric population at an increased risk of restless legs syndrome (RLS) and periodic limb movement disorder (PLMD). Polysomnographic data from the Caffeine for Apnea of Prematurity-Sleep (CAPS) study showed a high prevalence of elevated periodic limb movement index (PLMI) in a cohort of ex-preterm children, but the clinical importance of this finding, such as association with RLS, is unknown. We hypothesized that ex-preterm children would have a high prevalence of RLS and PLMD...
February 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28213294/a-low-cost-simplified-and-scaleable-pneumotachograph-and-face-mask-for-neonatal-mouse-respiratory-measurements
#5
Jenny J Sun, Roshan Nanu, Russell S Ray
INTRODUCTION: Neonatal respiratory disorders are a leading cause of perinatal mortality due to complications resulting from premature births and prenatal exposure to drugs of abuse, but optimal treatments for these symptoms are still unclear due to a variety of confounds and risk factors. Mouse models present an opportunity to study the underlying mechanisms and efficacy of potential treatments of these conditions with controlled variables. However, measuring respiration in newborn mice is difficult and commercial components are expensive and often require modification, creating a barrier and limiting our understanding of the short and long-term effects of birth complications on respiratory function...
February 15, 2017: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/28169045/sleep-surgery-tool-a-medical-checklist-to-review-prior-to-operating
#6
Macario Camacho, Robert W Riley, Robson Capasso, Peter O'Connor, Edward T Chang, Lauren K Reckley, Christian Guilleminault
OBJECTIVE: The objective of this study was to systematically review the international literature for studies providing a preoperative checklist for medical disorders to be evaluated or treated before performing sleep surgery. If no checklist exists, then studies providing recommendations would be used to develop a checklist de novo. STUDY DESIGN: Systematic review combined with expert opinion. METHODS: Four databases, including PubMed/Medline were searched through August 10, 2016...
March 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28141790/caffeine-administration-modulates-tgf-%C3%AE-signaling-but-does-not-attenuate-blunted-alveolarization-in-a-hyperoxia-based-mouse-model-of-bronchopulmonary-dysplasia
#7
Philipp Rath, Claudio Nardiello, David E Surate Solaligue, Ronald Agius, Ivana Mižíková, Sebastian Hühn, Konstantin Mayer, István Vadász, Susanne Herold, Frank Runkel, Werner Seeger, Rory E Morty
BACKGROUND: Caffeine is widely used to manage apnea of prematurity, and reduces the incidence of bronchopulmonary dysplasia (BPD). Deregulated transforming growth factor (TGF)-β signaling underlies arrested post-natal lung maturation in BPD. It is unclear whether caffeine impacts TGF-β signaling or post-natal lung development in affected lungs. METHODS: The impact of caffeine on TGF-β signaling in primary mouse lung fibroblasts and alveolar epithelial type II cells was assessed in vitro...
January 31, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28141547/efficacy-of-and-potential-morbidities-associated-with-the-use-of-antacid-medications-in-preterm-neonates
#8
Uday P Patil, Sean M Bailey, Elena V Wachtel, Evan Orosz, Rebecca Zarchin, Pradeep V Mally
OBJECTIVES: Antacid medications are frequently administered to preterm infants. These medications can change gastric pH levels and can affect regular gastrointestinal function and gut micro-bacterial flora. We hypothesized that preterm infants exposed to antacid medications are at a greater risk of necrotizing enterocolitis (NEC) and sepsis, and set out to determine any association, as well as to assess the clinical efficacy of these medications. MATERIALS AND METHODS: Retrospective chart review of preterm infants ≤30 weeks' gestational age or birth weight ≤1250 g over a 2-year period at New York University Langone Medical Center...
January 31, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28078997/lipoprotein-a-and-cardiovascular-risk-the-show-must-go-on
#9
Niki Katsiki, Khalid Al-Rasadi, Dimitri P Mikhailidis
Lipoprotein (a) [Lp(a)] is an independent but moderate, predictor for coronary heart disease (CHD) prevalence and severity. Several established and emerging cardiovascular (CV) risk factors including age, gender, ethnicity, smoking, dyslipidemia, hypertension, obesity, type 2 diabetes mellitus, alcohol consumption, arterial stiffness and hyperuricemia have been linked to Lp(a) metabolism. Apart from CHD, Lp(a) has been also associated with non-cardiac vascular diseases and diseases associated with increased CV risk such as chronic kidney disease, metabolic syndrome, non-alcoholic fatty liver disease, erectile dysfunction, obstructive sleep apnea syndrome, inflammatory bowel diseases and human immunodeficiency virus infection...
January 12, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28009338/atrial-arrhythmia-after-newborn-eye-exam-to-caffeine-or-not-to-caffeine
#10
A Ahmad, T Mondal, B Klein
Mydriatic drops are routinely administered to premature neonates to screen for retinopathy of prematurity. Adverse anticholinergic side effects, particularly convulsions and tachycardia have been reported in the pediatric age group following instillation of mydriatics for diagnostic fundus examination [1, 2]. Caffeine is frequently used for apnea of prematurity. In the neonatal intensive care unit, the combined use of caffeine and mydriatic drops is a common practice. Here we report two cases of atrial arrhythmias after neonatal eye exam that improved with conservative management...
2016: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/28003553/economics-of-home-monitoring-for-apnea-in-late-preterm-infants
#11
Brian L Montenegro, Michael Amberson, Lauren Veit, Christina Freiberger, Dmitry Dukhovny, Lawrence M Rhein
BACKGROUND: Apnea of prematurity affects a small proportion but large absolute number of late preterm infants, with out-patient management variably utilized despite relative clinical equipoise and potential for improved cost-effectiveness. METHODS: Over a 5-y period, from 2009 to 2013, infants born at ≥34 weeks gestational age at a level IIIB academic center in Boston, Massachusetts, with discharge-delaying apnea, bradycardia, and desaturation (ABD) events were identified...
January 2017: Respiratory Care
https://www.readbyqxmd.com/read/27899304/caffeine-for-apnea-of-prematurity-effects-on-the-developing-brain
#12
REVIEW
Anzari Atik, Richard Harding, Robert De Matteo, Delphi Kondos-Devcic, Jeanie Cheong, Lex W Doyle, Mary Tolcos
Caffeine is a methylxanthine that is widely used to treat apnea of prematurity (AOP). In preterm infants, caffeine reduces the duration of respiratory support, improves survival rates and lowers the incidence of cerebral palsy and cognitive delay. There is, however, little evidence relating to the immediate and long-term effects of caffeine on brain development, especially at the cellular and molecular levels. Experimental data are conflicting, with studies showing that caffeine can have either adverse or benefical effects in the developing brain...
January 2017: Neurotoxicology
https://www.readbyqxmd.com/read/27865065/how-do-we-recognize-the-child-with-osas
#13
Koen F Joosten, Helena Larramona, Silvia Miano, Dick Van Waardenburg, Athanasios G Kaditis, Nele Vandenbussche, Refika Ersu
Obstructive sleep-disordered breathing includes a spectrum of clinical entities with variable severity ranging from primary snoring to obstructive sleep apnea syndrome (OSAS). The clinical suspicion for OSAS is most often raised by parental report of specific symptoms and/or abnormalities identified by the physical examination which predispose to upper airway obstruction (e.g., adenotonsillar hypertrophy, obesity, craniofacial abnormalities, neuromuscular disorders). Symptoms and signs of OSAS are classified into those directly related to the intermittent pharyngeal airway obstruction (e...
February 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/27849235/randomized-controlled-trial-comparing-nasal-intermittent-positive-pressure-ventilation-and-nasal-continuous-positive-airway-pressure-in-premature-infants-after-tracheal-extubation
#14
RANDOMIZED CONTROLLED TRIAL
Daniela Franco Rizzo Komatsu, Edna Maria de Albuquerque Diniz, Alexandre Archanjo Ferraro, Maria Esther Jurvest Rivero Ceccon, Flávio Adolfo Costa Vaz
Objective: To analyze the frequency of extubation failure in premature infants using conventional mechanical ventilation (MV) after extubation in groups subjected to nasal intermittent positive pressure ventilation (nIPPV) and continuous positive airway pressure (nCPAP). Method: Seventy-two premature infants with respiratory failure were studied, with a gestational age (GA) ≤ 36 weeks and birth weight (BW) > 750 g, who required tracheal intubation and mechanical ventilation...
September 2016: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/27760427/doxapram-treatment-for-apnea-of-prematurity-a-systematic-review
#15
Roseanne J S Vliegenthart, Christine H Ten Hove, Wes Onland, Anton H L C van Kaam
BACKGROUND: Apnea of prematurity (AOP) is a common complication of preterm birth, for which caffeine is the first treatment of choice. In case of persistent AOP, doxapram has been advocated as an additional therapy. OBJECTIVE: To identify and appraise all existing evidence regarding efficacy and safety of doxapram use for AOP in infants born before 34 weeks of gestational age. METHODS: All studies reporting on doxapram use for AOP were identified by searching electronic databases, references from relevant studies, and abstracts from the Societies for Pediatric Research...
2017: Neonatology
https://www.readbyqxmd.com/read/27749633/etiology-and-outcome-of-severe-apparent-life-threatening-events-in-infants
#16
Tanja Radovanovic, Slobodan Spasojevic, Vesna Stojanovic, Aleksandra Doronjski
INTRODUCTION: An apparent life-threatening event (ALTE) is defined as "an episode that is frightening to the observer and is characterized by some combination of apnea, color change, marked change of muscle tone, choking, or gagging." OBJECTIVE: The aims of this study were to determine etiology and outcome of severe ALTE (requiring resuscitation measures) and to review diagnostic approaches in infants hospitalized after such an episode of ALTE. METHODS: Retrospective analysis included patients hospitalized at the Intensive Care Unit, Institute of Child and Youth Healthcare of Vojvodina, after an episode of severe ALTE over a 4-year period...
September 30, 2016: Pediatric Emergency Care
https://www.readbyqxmd.com/read/27746740/moderate-hyperbilirubinemia-alters-neonatal-cardiorespiratory-control-and-induces-inflammation-in-the-nucleus-tractus-solitarius
#17
Marie-Laure Specq, Mélisande Bourgoin-Heck, Nathalie Samson, François Corbin, Christian Gestreau, Maxime Richer, Hazim Kadhim, Jean-Paul Praud
Hyperbilirubinemia (HB) occurs in 90% of preterm newborns. Moderate HB can induce acute neurological disorders while severe HB has been linked to a higher incidence of apneas of prematurity. The present study aimed to test the hypothesis that even moderate HB disrupts cardiorespiratory control in preterm lambs. Two groups of preterm lambs (born 14 days prior to term), namely control (n = 6) and HB (n = 5), were studied. At day 5 of life, moderate HB (150-250 μmol/L) was induced during 17 h in the HB group after which cardiorespiratory control as well as laryngeal and pulmonary chemoreflexes were assessed during baseline recordings and during hypoxia...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27725928/association-between-apnea-of-prematurity-and-respiratory-distress-syndrome-in-late-preterm-infants-an-observational-study
#18
François Olivier, Sophie Nadeau, Georges Caouette, Bruno Piedboeuf
BACKGROUND: Late preterm infants (34-36 weeks' gestation) remain a population at risk for apnea of prematurity (AOP). As infants affected by respiratory distress syndrome (RDS) have immature lungs, they might also have immature control of breathing. Our hypothesis is that an association exists between RDS and AOP in late preterm infants. OBJECTIVE: The primary objective of this study was to assess the association between RDS and AOP in late preterm infants. The secondary objective was to evaluate if an association exists between apparent RDS severity and AOP...
2016: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/27712960/passive-myofunctional-therapy-applied-on-children-with-obstructive-sleep-apnea-a-6-month-follow-up
#19
Li-Chuan Chuang, Yun-Chia Lian, Michèle Hervy-Auboiron, Christian Guilleminault, Yu-Shu Huang
BACKGROUND/PURPOSE: Myofunctional therapy is one of the recommended treatments for obstructive sleep apnea, but the level of compliance has often been low in children. This study aims to investigate the therapeutic effect of passive myofunctional therapy using an oral appliance during sleep in children suffering from obstructive sleep apnea. METHODS: Twenty-nine children who suffered from obstructive sleep apnea were divided into two groups: premature children and full-term children...
October 3, 2016: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/27684421/clinically-significant-cardiopulmonary-events-and-the-effect-of-definition-standardization-on-apnea-of-prematurity-management
#20
M B F Powell, C R Ahlers-Schmidt, M Engel, B T Bloom
OBJECTIVE: To define the impact of care standardization on caffeine and cardiorespiratory monitoring at neonatal intensive care unit (NICU) discharge. STUDY DESIGN: Electronic records were abstracted for infants aged 24-36 weeks gestation with birth weights appropriate for gestational age. Infants who died, transferred prior to discharge, had major pulmonary anomalies, required a home monitor for mechanical ventilation or had a family history of sudden infant death syndrome were excluded...
January 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
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