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Apnea of prematurity

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https://www.readbyqxmd.com/read/28729348/a-new-target-for-caffeine-in-the-developing-lung-endoplasmic-reticulum-stress
#1
Philipp Rath, Claudio Nardiello, Rory E Morty
The utility of caffeine to manage apnea of prematurity is widely accepted, however, much controversy surrounds the potential for caffeine to drive post-natal lung maturation in settings of arrested lung development. Many studies have reported pathways relevant to lung injury and lung development are modulated by caffeine in vitro and in vivo, leading to the application of caffeine in experimental animal models of bronchopulmonary dysplasia (BPD). These studies have generated exciting, but at times confusing data...
July 20, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28707987/neonatal-caffeine-treatment-and-respiratory-function-at-11-years-in-children-1251-g-birth-weight
#2
Lex W Doyle, Sarath Ranganathan, Jeanie L Y Cheong
RATIONALE: Caffeine in the newborn period shortens the duration of assisted ventilation and reduces the incidence of bronchopulmonary dysplasia, but its effects on respiratory function in later childhood are unknown. OBJECTIVES: To determine if children born <1251 g birthweight who were treated with neonatal caffeine had improved respiratory function at 11 years of age compared with children treated with placebo. METHODS: Children enrolled in the Caffeine for Apnea of Prematurity randomized controlled trial and assessed at the Royal Women's Hospital in Melbourne at 11 years of age had expiratory flow rates measured according to the standards of the American Thoracic Society...
July 14, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28692233/-sleep-apnea-in-pregnancy
#3
Wawrzyniec Rieder, Raphaël Heinzer, David Baud
Snoring, chronic rhinitis and fragmentation of sleep are common symptoms in pregnancy, especially in the third trimester. The prevalence of obstructive sleep apnea is also increased in pregnant women and can be associated with pregnancy induced hypertension, preeclampsia and diabetes mellitus. The fetus is as well exposed to a higher risk of prematurity and intra-uterine growth restriction. Given the lack of adequate screening tool, the diagnosis of obstructive sleep apnea is a challenge for the physician and a high degree of clinical suspicion is necessary in order to identify the patients at risk and propose an appropriate management...
October 26, 2016: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28689383/-apnea-of-prematurity-characteristic-and-treatment
#4
Aleksandra Goryniak, Angelika Szczęśniak, Daria Śleboda, Barbara Dołęgowska
Apnea of prematurity (AOP) can affect even 85-100% of premature newborns and is related to lack of full maturity of organs. AOP is manifesting by 15-20 seconds cessations of breathing accompanied by bradycardia and oxygen desaturation, what can lead to hypoxia or death. Therefore it is very important to implement the effective and safe treatment immediately after birth. Widely used caffeine citrate, which stimulates the respiratory system, improving the working of the respiratory muscles. However the metabolism of caffeine citrate is difficult in preterm infants due to the immaturity of the hepatic enzyme system, what can lead to the occurrence of side effects and toxicity...
2017: Postepy Biochemii
https://www.readbyqxmd.com/read/28688570/congenital-nasal-obstruction-in-infants-a-retrospective-study-and-literature-review
#5
REVIEW
Vijay A Patel, Michele M Carr
OBJECTIVES: To identify etiologies of congenital nasal obstruction and describe clinical practice patterns in the evaluation, diagnosis, and treatment of symptomatic infants. METHODS: An electronic chart review from 1/1/2006-10/1/2016 for all patients with a diagnosis of nasal obstruction within the first six months of life using ICD-9 and 10 codes 478.19 and J34.89. RESULTS: A total of 34 patients were evaluated by the Division of Otolaryngology for this chief complaint...
August 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28680824/the-effect-of-the-physical-activity-on-polymorphic-premature-ventricular-complexes-in-chronic-kidney-disease
#6
Márcio G Kiuchi, Shaojie Chen
BACKGROUND: Polymorphic premature ventricular complexes (PVCs) are very common, appearing most frequently in patients with hypertension, obesity, sleep apnea, and structural heart disease. Sympathetic hyperactivity plays a critical role in the development, maintenance, and aggravation of ventricular arrhythmias. Endurance exercise training clearly lowers sympathetic activity in sympatho-excitatory disease states and may be tolerated by patients with chronic kidney disease (CKD). METHODS: We assessed 40 CKD patients with hypertension with polymorphic PVCs...
June 2017: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/28678385/release-of-atp-by-pre-b%C3%A3-tzinger-complex-astrocytes-contributes-to-the-hypoxic-ventilatory-response-via-a-ca-2-dependent-p2y1-receptor-mechanism
#7
Vishaal Rajani, Yong Zhang, Venkatesh Jalubula, Vladimir Rancic, Shahriar SheikhBahaei, Jennifer D Zwicker, Silvia Pagliardini, Clayton T Dickson, Klaus Ballanyi, Sergey Kasparov, Alexander V Gourine, Gregory D Funk
KEY POINTS: The ventilatory response to reduced oxygen (hypoxia) is biphasic, comprising an initial increase in ventilation followed by a secondary depression. Our findings indicate that, during hypoxia, astrocytes in the pre-Bötzinger complex (preBötC), a critical site of inspiratory rhythm generation, release a gliotransmitter that acts via P2Y1 receptors to stimulate ventilation and reduce the secondary depression. In vitro analyses reveal that ATP excitation of the preBötC involves P2Y1 receptor-mediated release of Ca(2+) from intracellular stores...
July 5, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28634363/long-term-health-outcomes-in-patients-with-prader-willi-syndrome-a-nationwide-cohort-study-in-denmark
#8
E Hedgeman, S P Ulrichsen, S Carter, N C Kreher, K P Malobisky, M M Braun, J Fryzek, M S Olsen
BACKGROUND: Prader-Willi syndrome (PWS) is a rare congenital disease that affects growth, sexual development, cognitive function and behavior. Individuals exhibit food preoccupation and hyperphagia, which may lead to obesity with premature morbidity and mortality. The aim of this work was to evaluate the risk of venous thromboembolisms (VTE), myocardial infarction, pulmonary hypertension, sleep apnea, depression, anxiety and all-cause mortality among persons with PWS as compared to an age- and sex-matched general population cohort...
June 21, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28587528/a-prospective-observational-cohort-study-of-exposure-to-womb-like-sounds-to-stabilize-breathing-and-cardiovascular-patterns-in-preterm-neonates
#9
Joanna J Parga, Ravi R Bhatt, Kalpashri Kesavan, Myung-Shin Sim, Harvey N Karp, Ronald M Harper, Lonnie Zeltzer
PURPOSE: We exposed premature infants to womb-like sounds to evaluate such exposure on breathing and cardiovascular patterns. We hypothesized that these sounds would reduce apnea and intermittent hypoxemia, enhance parasympathetic outflow, and improve cardiovascular patterns. METHODS: A total of 20 cases and 5 control infants at ≤32-36 weeks corrected gestational age participated in a prospective observational cohort study. Twenty-four hours of continuous ECG, respiratory and oxygen saturation data were collected in all infants...
June 22, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28534047/polysomnographic-heart-rate-variability-indices-and-atrial-ectopy-associated-with-incident-atrial-fibrillation-risk-in-older-community-dwelling-men
#10
Dileep Raman, Farhad Kaffashi, Li-Yung Lui, William H Sauer, Susan Redline, Peter Stone, Peggy M Cawthon, Katie L Stone, Kristine E Ensrud, Sonia Ancoli-Israel, Kenneth Loparo, Reena Mehra
BACKGROUND: Autonomic dysfunction contributes to atrial fibrillation (AF). OBJECTIVE: We hypothesized that polysomnogram (PSG)-based heart rate variability (HRV) autonomic function biomarkers are associated with incident AF and these associations are modified by measures of sleep disordered breathing (SDB). METHODS: 2350 participants of a multi-center prospective study (Outcomes of Sleep Disorders in Older Men Study) without baseline AF underwent sleep studies with incident adjudicated AF follow up (8...
May 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/28479031/the-effect-of-early-fusion-of-the-spheno-occipital-synchondrosis-on-midface-hypoplasia-and-obstructive-sleep-apnea-in-patients-with-crouzon-syndrome
#11
Caroline Driessen, Bianca F Rijken, Priya N Doerga, Marjolein H Dremmen, Koen F Joosten, Irene M Mathijssen
INTRODUCTION: The investigators hypothesized that patients with Crouzon syndrome and premature fusion of the spheno-occipital synchondrosis (SOS) more often have, or have more severe midface hypoplasia and obstructive sleep apnea (OSA). METHODS: A prospective cohort study was performed among patients with Crouzon syndrome to analyze SOS closure, midface hypoplasia represented by the sella-nasion angle (SNA) and OSA. RESULTS: Forty patients were included in whom the OSA-prevalence was 65%...
April 8, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28474588/comparative-efficacy-and-safety-of-caffeine-and-aminophylline-for-apnea-of-prematurity-in-preterm-%C3%A2-34-weeks-neonates-a-randomized-controlled-trial
#12
RANDOMIZED CONTROLLED TRIAL
M Shivakumar, P Jayashree, Muhammad Najih, Leslie Edward Simon Lewis, Ramesh Bhat Y, Asha Kamath, - Shashikala
OBJECTIVE: To compare the efficacy and safety of standard doses of Caffeine and Aminophylline for Apnea of prematurity. STUDY DESIGN: Randomized controlled trial. SETTING: Tertiary-care referral centre and a teaching institution in Southern India. Trial was conducted from February 2012 to January 2015. PARTICIPANTS: 240 preterm (≤34 wk) neonates with apnea of prematurity. INTERVENTIONS: Neonates randomized into two groups: Caffeine group received loading dose of caffeine citrate (20 mg/kg) followed by 5 mg/kg/day maintenance dose every 24 hour...
April 15, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/28446386/caffeine-citrate-is-it-a-silver-bullet-in-neonatology
#13
REVIEW
Bikash Shrestha, Gaurav Jawa
Caffeine citrate is one of the most prescribed drug in the present day NICU for apnea. Its efficacy, tolerability, wide therapeutic index and safety margin has made it the drug of choice among the methylxanthines. Its therapeutic uses in apnea of prematurity, mechanical ventilation, bronchopulmonary dysplasia has made it a "silver bullet" in neonatology. However, there are still controversies surrounding this drug. This review is aimed to update the reader about the basic pharmacology, current therapeutic uses, adverse effects, controversies as well as present and future research of caffeine...
March 27, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28438477/apnea-in-the-term-infant
#14
REVIEW
Mary Elaine Patrinos, Richard J Martin
Whereas apnea of prematurity has been well defined and its pathophysiology extensively studied, apnea in the term infant remains a greater challenge. Unfortunately, clear diagnostic criteria are lacking and pathogenesis and management vary widely. In this review we have arbitrarily organized the discussion chronologically into earlier and later postnatal periods. In the first days of life, presumed apnea may reflect physiologic events such as positional or feeding etiologies, or may be a manifestation of serious pathophysiology, such as a seizure disorder...
April 21, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28437520/academic-performance-motor-function-and-behavior-11-years-after-neonatal-caffeine-citrate-therapy-for-apnea-of-prematurity-an-11-year-follow-up-of-the-cap-randomized-clinical-trial
#15
RANDOMIZED CONTROLLED TRIAL
Barbara Schmidt, Robin S Roberts, Peter J Anderson, Elizabeth V Asztalos, Lorrie Costantini, Peter G Davis, Deborah Dewey, Judy D'Ilario, Lex W Doyle, Ruth E Grunau, Diane Moddemann, Harvey Nelson, Arne Ohlsson, Alfonso Solimano, Win Tin
Importance: Caffeine citrate therapy for apnea of prematurity reduces the rates of bronchopulmonary dysplasia, severe retinopathy, and neurodevelopmental disability at 18 months and may improve motor function at 5 years. Objective: To evaluate whether neonatal caffeine therapy is associated with improved functional outcomes 11 years later. Design, Setting, and Participants: A follow-up study was conducted at 14 academic hospitals in Canada, Australia, and the United Kingdom from May 7, 2011, to May 27, 2016, of English- or French-speaking children who had been enrolled in the randomized, placebo-controlled Caffeine for Apnea of Prematurity trial between October 11, 1999, and October 22, 2004...
June 1, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28420694/caffeine-preferentially-protects-against-oxygen-induced-retinopathy
#16
Shuya Zhang, Rong Zhou, Bo Li, Haiyan Li, Yanyan Wang, Xuejiao Gu, Lingyun Tang, Cun Wang, Dingjuan Zhong, Yuanyuan Ge, Yuqing Huo, Jing Lin, Xiao-Ling Liu, Jiang-Fan Chen
Retinopathy of prematurity (ROP) is the leading cause of childhood blindness, but current anti-VEGF therapy is concerned with delayed retinal vasculature, eye, and brain development of preterm infants. The clinical observation of reduced ROP severity in premature infants after caffeine treatment for apnea suggests that caffeine may protect against ROP. Here, we demonstrate that caffeine did not interfere with normal retinal vascularization development but selectively protected against oxygen-induced retinopathy (OIR) in mice...
April 18, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28416458/on-the-origins-of-sex-based-differences-in-respiratory-disorders-lessons-and-hypotheses-from-stress-neuroendocrinology-in-developing-rats
#17
REVIEW
Jean-Philippe Rousseau, Luana Tenorio-Lopes, Cécile Baldy, Tara Adele Janes, Stéphanie Fournier, Richard Kinkead
The environment plays a critical role in shaping development and function of the brain. Stress, especially when experienced early in life, can interfere with these processes. In the context of respiratory control, perinatal stress can therefore alter the ability to achieve the "fine-tuning" necessary for proper detection of chemosensory stimuli and production of an adequate motor (respiratory) command. Depending on the timing, intensity, and duration, the detrimental consequences of perinatal exposure to adverse conditions on the respiratory network become manifest at various life stages and can persist into adulthood...
April 14, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28407825/-effect-of-pregnancy-induced-hypertension-syndrome-on-complications-in-very-low-birth-weight-preterm-infants
#18
Song-Zhou Xu, Xiao-Yan Hu, Fang Zhao, Yu-Xin Zhou, Shuang-Chuan Zhang
OBJECTIVE: To study the effect of pregnancy-induced hypertension syndrome (PIH) on complications in very low birth weight (VLBW) preterm infants. METHODS: The VLBW preterm infants were enrolled as research subjects, and according to the presence or absence of PIH in their mothers, they were divided into PIH group and non- PIH group. The incidence of major complications and length of hospital stay were compared between the two groups. RESULTS: There were no significant differences between the two groups in gestational age, birth weight, sex, incidence rate of maternal diabetes, and use of antepartum hormone...
April 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28356131/treatment-of-infants-with-syndromic-robin-sequence-with-modified-palatal-plates-a-minimally-invasive-treatment-option
#19
Silvia Müller-Hagedorn, Wolfgang Buchenau, Jörg Arand, Margit Bacher, Christian F Poets
BACKGROUND: Infants with Robin sequence (RS) suffer from upper airway obstruction (UAO) and feeding problems. We developed an oral appliance with a velar extension in combination with functional treatment and appropriate feeding techniques, which was proven effective in isolated RS. As the above problems are particularly challenging in syndromic RS, we set out to evaluate our treatment concept also in these patients. METHODS: We searched our electronic departmental database to identify all children admitted to our department between 01/01/2003 and 31/12/2009 because of syndromic RS...
March 30, 2017: Head & Face Medicine
https://www.readbyqxmd.com/read/28352512/effects-of-antecedent-manipulations-and-social-reinforcement-to-increase-lateral-positioning-in-a-premature-infant-with-obstructive-sleep-apnea
#20
Harry Voulgarakis, Solandy Forte, Cheryl Giacomelli, Debra Bendell-Estroff, Henry Krous
Recent research suggests supine positioning for sleeping infants is the safest position to prevent breathing related difficulties; however doing so can significantly increase obstruction in apneic infants resulting in decreased sleep quality. We implemented a multi-component treatment package compromised of antecedent interventions and parent-mediated social reinforcement to increase lateral positioning in a premature infant with obstructive sleep apnea. Results indicate that the intervention increased lateral positioning in the participant by over 80 % in the final phase of the study, indicating efficacy of the intervention...
March 2017: Behavior Analysis in Practice
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