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pulmonary hypertension in infants

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https://www.readbyqxmd.com/read/29137270/human-mesenchymal-stem-cells-ameliorate-experimental-pulmonary-hypertension-induced-by-maternal-inflammation-and-neonatal-hyperoxia-in-rats
#1
Chung-Ming Chen, Willie Lin, Liang-Ti Huang, Hsiu-Chu Chou
Pulmonary hypertension is a critical problem in infants with bronchopulmonary dysplasia. This study determined the therapeutic effects of human mesenchymal stem cells (MSCs) on pulmonary hypertension in an animal model. Pregnant Sprague-Dawley rats were intraperitoneally injected with lipopolysaccharide (LPS, 0.5 mg/kg/day) on gestational days 20 and 21. The pups were randomly assigned to two treatment conditions: room air (RA) or an O2-enriched atmosphere. On postnatal day 5, they were intratracheally transplanted with human MSCs (3 × 10(5) and 1 × 10(6) cells) in 0...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136712/-long-term-outcome-and-prognostic-factors-in-pregnant-women-with-pulmonary-arterial-hypertension-associated-with-congenital-heart-disease
#2
Q T Ou, J K Lu, J Zhang, Y Chen, Q Li, J L Zhang
Objective: To investigate the perinatal outcome, risk factors and long-term outcome of pregnancy complicated with pulmonary arterial hypertension(PAH) and congenital heart diseases (CHD). Methods: Clinical data of 110 pregnant women who were diagnosed as PAH-CHD were retrospectively analyzed in the Department of Obstetrics and Gynecology and Surgical Intensive Care Unit at Beijing Anzhen Hospital from 2004 to 2013. The survival and treatment status were followed up. Results: 110 subjects consisted of 11 mild PAH, 33 moderate and 66 severe ones...
November 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29131022/an-echocardiographic-screening-program-helps-to-identify-pulmonary-hypertension-in-extremely-low-birthweight-infants-with-and-without-bronchopulmonary-dysplasia-a-single-center-experience
#3
Katrin Mehler, Floris E Udink Ten Cate, Titus Keller, Ursula Bangen, Angela Kribs, André Oberthuer
BACKGROUND: Pulmonary hypertension (PH) affects 1 in 6 infants with a birthweight <1,000 g (extremely low birthweight; ELBW) and is frequently associated with bronchopulmonary dysplasia (BPD). If untreated, the mortality rates of the disease are high. OBJECTIVES: The aim of this study was to characterize risk factors for PH in ELBW infants and to describe the timing of onset of the disease by setting up a screening program. METHODS: ELBW infants treated at the Department of Neonatology (level III neonatal intensive care unit at the University of Cologne Medical Centre, Germany) between January 2010 and March 2015 were included...
November 8, 2017: Neonatology
https://www.readbyqxmd.com/read/29126435/human-amnion-cells-reverse-acute-and-chronic-pulmonary-damage-in-experimental-neonatal-lung-injury
#4
Dandan Zhu, Jean Tan, Amina S Maleken, Ruth Muljadi, Siow T Chan, Sin N Lau, Kirstin Elgass, Bryan Leaw, Joanne Mockler, Daniel Chambers, Kristen T Leeman, Carla F Kim, Euan M Wallace, Rebecca Lim
BACKGROUND: Despite advances in neonatal care, bronchopulmonary dysplasia (BPD) remains a significant contributor to infant mortality and morbidity. While human amnion epithelial cells (hAECs) have shown promise in small and large animal models of BPD, there is scarce information on long-term benefit and clinically relevant questions surrounding administration strategy remain unanswered. In assessing the therapeutic potential of hAECs, we investigated the impact of cell dosage, administration routes and timing of treatment in a pre-clinical model of BPD...
November 10, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29125447/multiple-echocardiography-abnormalities-associated-with-endoscopic-third-ventriculostomy-failure
#5
Ashish H Shah, George M Ibrahim, Jun Sasaki, John Ragheb, Sanjiv Bhatia, Toba N Niazi
OBJECTIVE Although endoscopic third ventriculostomy (ETV) with choroid plexus cauterization (CPC) has gained increasing prominence in the management of hydrocephalus caused by intraventricular hemorrhage of prematurity, the rates of long-term shunt independence remain low. Furthermore, limited evidence is available to identify infants who might benefit from the procedure. The authors tested the hypothesis that elevated venous pressure that results from comorbid cardiac disease might predispose patients to ETV/CPC failure and shunt dependence...
November 10, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29118953/the-role-of-preoperative-sildenafil-therapy-in-controlling-of-postoperative-pulmonary-hypertension-in-children-with-ventricular-septal-defects
#6
Hamid Bigdelian, Mohsen Sedighi
Introduction: Most of the ventricular septal defects (VSD) are complicated with pulmonary arterial hypertension (PAH) which is the major cause of pulmonary hypertensive crisis and right ventricular failure. Methods: We reviewed clinical outcomes of 63 infants who underwent cardiac surgery and were divided into three groups. Control group (n=20) did not received sildenafil while group A (n = 22) received drug (0.3 mg/kg) before and after surgery. Group B (n=21) received drug at the initiation of surgery. Demographic data, preoperative and postoperative variables were compared among the patients...
2017: Journal of Cardiovascular and Thoracic Research
https://www.readbyqxmd.com/read/29118720/altered-right-ventricular-mechanical-properties-are-afterload-dependent-in-a-rodent-model-of-bronchopulmonary-dysplasia
#7
Jitandrakumar R Patel, Gregory P Barton, Rudolf K Braun, Kara N Goss, Kristin Haraldsdottir, Alexandria Hopp, Gary Diffee, Timothy A Hacker, Richard L Moss, Marlowe W Eldridge
Infants born premature are at increased risk for development of bronchopulmonary dysplasia (BPD), pulmonary hypertension (PH), and ultimately right ventricular (RV) dysfunction, which together carry a high risk of neonatal mortality. However, the role alveolar simplification and abnormal pulmonary microvascular development in BPD affects RV contractile properties is unknown. We used a rat model of BPD to examine the effect of hyperoxia-induced PH on RV contractile properties. We measured in vivo RV pressure as well as passive force, maximum Ca(2+) activated force, calcium sensitivity of force (pCa50) and rate of force redevelopment (ktr) in RV skinned trabeculae isolated from hearts of 21-and 35-day old rats pre-exposed to 21% oxygen (normoxia) or 85% oxygen (hyperoxia) for 14 days after birth...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29108501/occult-massive-visceral-fat-necrosis-following-therapeutic-hypothermia-for-neonatal-encephalopathy
#8
Salwa Khedr, Anna Piskorski, Adrienne R Bingham, Justin Goldstein, Abbot R Laptook, Monique E De Paepe
Therapeutic hypothermia (head or whole-body cooling) improves survival and neurodevelopmental outcome in term newborns with moderate-to-severe encephalopathy. Hypothermia treatment is well tolerated; the most common side effect is thrombocytopenia. In about 1% of infants, focal subcutaneous fat necrosis has been reported. We describe a case of clinically unsuspected massive visceral fat necrosis in a term infant with Apgar score 0 at 1 min ("resuscitated apparently stillborn" infant) who was treated with therapeutic hypothermia for 72 h and expired on the 25th day of life following a neonatal course complicated by severe encephalopathy, pulmonary artery hypertension, persistent thrombocytopenia, hypoglycemia, and severe basal ganglia-thalamic abnormalities on magnetic resonance imaging...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/29108421/neonatal-arterial-ischemic-stroke-risk-related-to-family-history-maternal-diseases-and-genetic-thrombophilia
#9
Juan Arnaez, Gemma Arca, Ana Martín-Ancel, Thais Agut, Alfredo Garcia-Alix
The objective of this study was to evaluate the heritability of neonatal arterial ischemic stroke (NAIS) in relation to family history of thromboembolic event, maternal diseases, and thrombophilia in both parents ( F5G1691A, F2G20210A, and MTHFRC677 T mutations). Forty-two consecutive infants ≥36 weeks of gestation <28 days of life with acute symptomatic NAIS and their parents, as well as 129 controls, were prospectively recruited. Information on maternal data (age, body mass index, oral contraception, migraine, epilepsy, hypertension, and immune disease) and a 3-generation pedigree regarding myocardial infarction, pulmonary embolism, cerebrovascular event, and deep vein thrombosis were obtained...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/29104139/retinal-vascular-changes-in-preterm-infants-heart-and-lung-diseases-and-plus-disease
#10
Andrea Elizabeth Arriola-Lopez, M Elena Martinez-Perez, Maria Ana Martinez-Castellanos
PURPOSE: To report the retinal vascular features of preterm infants with congenial heart disease (CHD), lung disease (pulmonary hypertension [PH] and bronchopulmonary dysplasia [BPD]), and ROP with plus disease to determine whether these disease entities are distinguishable on the basis of retinal morphology. METHODS: The medical records of preterm infants with CHD, lung disease, and ROP with plus disease were reviewed retrospectively. Qualitative vascular findings were validated using computer-based software to analyze 25 representative images, each corresponding to one infant's eye...
November 2, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/29096166/lung-and-liver-growth-and-retinoic-acid-status-in-human-fetuses-with-congenital-diaphragmatic-hernia
#11
Christine K C Loo, Michael A Pearen, Tamara N Pereira, Joanna Perry-Keene, Diane Payton, Grant A Ramm
BACKGROUND: Abnormal retinoic acid (RA) signalling is considered a major cause of congenital diaphragmatic hernia (CDH). Pulmonary hypoplasia and pulmonary hypertension are the major causes of morbidity and mortality in infants born with CDH. Experimental studies in animals have found that RA signalling is involved in lung and liver development, but animal models of CDH do not directly correlate with CDH in human fetuses. This study investigated if RA status is also linked to lung and liver growth in human fetuses with CDH...
October 30, 2017: Early Human Development
https://www.readbyqxmd.com/read/29089468/protective-effect-of-htk-solution-on-postoperative-pulmonary-function-in-infants-with-chd-and-pah
#12
Jindong Li, Yanhong Wu, Xudong Tian, Jiantang Wang, Mingfeng Dong, Anbiao Wang
Objective In this study, we aimed to investigate the effect of pulmonary arterial perfusion (PAP) with HTK on lung protection in infants with congenital heart disease (CHD) and pulmonary arterial hypertension (PAH) after cardiopulmonary bypass (CPB). Methods Fifty infant patients with CHD and PAH at our hospital from January 2016 to February 2017 were randomly divided into control group and HTK group. The level of IL-6, MDA and ET-1 in serum were detected using ELISA Kit. Oxygen index (OI) and respiratory index (RI) were calculated at each time point...
October 31, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29084001/assessing-the-borderline-ventricle-in-a-term-infant-combining-imaging-and-physiology-to-establish-the-right-course
#13
Meryl S Cohen
PURPOSE OF REVIEW: The purpose of this review is to describe the challenges associated with the diagnosis and treatment of children with borderline ventricles. A borderline ventricle is one in which there is concern that it will not be able to support its circulation. If a biventricular repair is attempted and fails, outcome is often poor. Thus, this early decision is important. RECENT FINDINGS: For the borderline right ventricle, options to add an additional source of pulmonary blood flow make the surgical strategy a bit more flexible than for patients with a borderline left ventricle...
October 27, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/29058384/nitric-oxide-for-the-treatment-of-preterm-infants-with-severe-rds-and-pulmonary-hypertension
#14
Carlo Dani, Iuri Corsini, Jessica Cangemi, Venturella Vangi, Simone Pratesi
BACKGROUND: Inhaled nitric oxide (iNO) cannot be recommended for the routine treatment of respiratory failure in premature neonates, but it has been suggested that the effectiveness of iNO therapy should be further studied in more select preterm infants, such as those with persistent pulmonary hypertension of the newborn (PPHN). OBJECTIVE: To evaluate the frequency of PPHN in very preterm infants with severe respiratory distress syndrome (RDS), to assess the effectiveness of iNO in these patients, and to individuate possible predictive factors for the response to iNO in preterm infants with RDS...
November 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29058246/factors-relating-caesarean-section-to-persistent-pulmonary-hypertension-of-the-newborn
#15
REVIEW
Niralee Babooa, Wen-Jing Shi, Chao Chen
BACKGROUND: Several studies have clearly demonstrated a significantly higher incidence of persistent pulmonary hypertension of the newborn (PPHN) in neonates delivered by caesarean section (CS) compared to those delivered vaginally. The pathophysiological factors underlying the link between CS and PPHN are still poorly understood. In this review, we describe the mechanisms that could explain the association between CS delivery and subsequent PPHN, as well as potential preventive measures...
December 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/29048404/association-of-unit-wide-oxygen-saturation-target-on-incidence-of-pulmonary-hypertension-in-very-low-birthweight-premature-infants
#16
U Kanaan, B Srivatsa, J Huckaby, M Kelleman
OBJECTIVE: Assess the effect of increasing pulse oximetry targets on incidence of pulmonary hypertension in very low birthweight premature infants. STUDY DESIGN: Retrospective cohort study comparing pulmonary hypertension incidence among three cohorts of premature infants exposed to varying oxygen saturation targets (Cohort 1: n=459, 1 May 2009 to 30 April 2011, 85-94%; Cohort 2: n=474, 1 May 2011 to 31 May 2013, 88-94%; Cohort 3: n=387, 1 June 2013 to 31 May 2015, 90-95%)...
October 19, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29047087/effects-of-hyperoxia-on-the-developing-airway-and-pulmonary-vasculature
#17
Christina M Pabelick, Michael A Thompson, Rodney D Britt
Although it is necessary and part of standard practice, supplemental oxygen (40-90% O2) or hyperoxia is a significant contributing factor to development of bronchopulmonary dysplasia, persistent pulmonary hypertension, recurrent wheezing, and asthma in preterm infants. This chapter discusses hyperoxia and the role of redox signaling in the context of neonatal lung growth and disease. Here, we discuss how hyperoxia promotes dysfunction in the airway and the known redox-mediated mechanisms that are important for postnatal vascular and alveolar development...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29046161/inhaled-nitric-oxide-in-preterm-neonates-with-refractory-hypoxemia-associated-to-oligohydramnios
#18
Alvarado Socarras Jorge, Castro M Javier, Fredi Alexander Diaz-Quijano
BACKGROUND: Therapy with inhaled nitric oxide (iNO) is effective in the management of pulmonary hypertension and severe hypoxemia. However, these benefits have not been demonstrated in preterm infants (<34 weeks). The objective of this report is to present the experience of eight cases of preterm neonates with respiratory distress syndrome (RDS) and refractory hypoxemia, with oligohydramnios history. METHODS: We evaluated the clinical feature of 8 preterm neonates with severe hypoxemia who had maternal antecedents of oligoamnios, mainly due to premature rupture of membranes...
October 17, 2017: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/29035757/pulmonary-hypertension-associated-with-bronchopulmonary-dysplasia-in-preterm-infants
#19
REVIEW
Christine B Bui, Merrin A Pang, Arvind Sehgal, Christiane Theda, Jason C Lao, Philip J Berger, Marcel F Nold, Claudia A Nold-Petry
Bronchopulmonary dysplasia (BPD) and BPD-associated pulmonary hypertension (BPD-PH) are chronic inflammatory cardiopulmonary diseases with devastating short- and long-term consequences for infants born prematurely. The immature lungs of preterm infants are ill-prepared to achieve sufficient gas exchange, thus usually necessitating immediate commencement of respiratory support and oxygen supplementation. These therapies are life-saving, but they exacerbate the tissue damage that is inevitably inflicted on a preterm lung forced to perform gas exchange...
October 2, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/29035425/inhaled-versus-systemic-corticosteroids-for-the-treatment-of-bronchopulmonary-dysplasia-in-ventilated-very-low-birth-weight-preterm-infants
#20
REVIEW
Sachin S Shah, Arne Ohlsson, Henry L Halliday, Vibhuti S Shah
BACKGROUND: This is an update of a review published in 2012. A related review "Inhaled versus systemic corticosteroids for preventing bronchopulmonary dysplasia in ventilated very low birth weight preterm neonates" has been updated as well. Bronchopulmonary dysplasia (BPD) is a serious and common problem among very low birth weight infants, despite the use of antenatal steroids and postnatal surfactant therapy to decrease the incidence and severity of respiratory distress syndrome. Due to their anti-inflammatory properties, corticosteroids have been widely used to treat or prevent BPD...
October 16, 2017: Cochrane Database of Systematic Reviews
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