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pulmonary hypertension in infants

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https://www.readbyqxmd.com/read/27895951/persistent-tachypnea-and-alveolar-hemorrhage-in-an-infant-an-unexpected-etiology
#1
John Bishara, Angela Webb, Christina Valsamis, Claudia Halaby, Melodi Pirzada
Persistent tachypnea and failure to thrive during infancy have a broad differential diagnosis which includes pulmonary and cardiovascular disorders. Diffuse alveolar hemorrhage (DAH) is a rare entity in children. DAH requires an extensive work-up as certain conditions may need chronic therapy. Cardiovascular disorders are included in the etiology of DAH. We present a case of an 8-month-old female with a moderate, restrictive patent ductus arteriosus (PDA) admitted to the hospital with respiratory distress and failure to thrive...
2016: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/27895230/an-arginase-1-snp-that-protects-against-the-development-of-pulmonary-hypertension-in-bronchopulmonary-dysplasia-enhances-no-mediated-apoptosis-in-lymphocytes
#2
Jennifer K Trittmann, Yi Jin, Louis G Chicoine, Yusen Liu, Bernadette Chen, Leif D Nelin
Arginase and nitric oxide synthase (NOS) share a common substrate, l-arginine, and have opposing effects on vascular remodeling. Arginase is the first step in polyamine and proline synthesis necessary for cellular proliferation, while NO produced from NOS promotes apoptosis. Previously, we identified a single nucleotide polymorphism (SNP) in the arginase-1 (ARG1) gene, rs2781666 (T-allele) that was associated with a decreased risk for developing pulmonary hypertension (PH) in a cohort of infants with bronchopulmonary dysplasia (BPD)...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27843119/potential-nutrients-for-preventing-or-treating-bronchopulmonary-dysplasia
#3
REVIEW
Liya Ma, Ping Zhou, Josef Neu, Hung-Chih Lin
Bronchopulmonary dysplasia (BPD) is a frequent complication occurring in extremely preterm infants. Despite recent advances in newborn medicine, the incidence of BPD does not appear to have changed markedly, and specific treatments and prevention strategies are still lacking. Nutrition plays an important role in normal lung development and maturation. Malnutrition may delay somatic growth and new alveoli development, thus aggravating pulmonary injury involved in the pathogenesis of BPD. However, few nutrients have been investigated for their potential to mitigate the pathogenesis of BPD...
September 15, 2016: Paediatric Respiratory Reviews
https://www.readbyqxmd.com/read/27837262/outcomes-of-congenital-diaphragmatic-hernia-repair-on-extracorporeal-life-support
#4
Jamie Golden, Nicole Jones, Jessica Zagory, Shannon Castle, David Bliss
PURPOSE: Extracorporeal life support (ECLS) is applied to refractory pulmonary hypertension in congenital diaphragmatic hernia (CDH). We evaluate the single-center outcomes of infants with CDH to determine the utility of late repair on ECLS versus repair post-decannulation. METHODS: Records of infants with CDH (2004-2014) were retrospectively reviewed. RESULTS: CDH was diagnosed in 177 infants. Sixty six (37%) underwent ECLS, of which, 11 died prior to repair, 33 were repaired post-decannulation, and 22 were repaired on ECLS...
November 11, 2016: Pediatric Surgery International
https://www.readbyqxmd.com/read/27801982/risk-factors-for-pulmonary-arterial-hypertension-in-children-and-young-adults
#5
Estelle Naumburg, Lars Söderström, Daniel Huber, Inge Axelsson
OBJECTIVES: Pulmonary hypertension (PH) has been linked to preterm birth explained by congenital heart defects and pulmonary diseases. WORKING HYPOTHESIS: Other factors may influence the risk of PH among adolescences and children born premature. STUDY DESIGN: This national registry-based study assess risk of PH following premature birth adjusted for known risk factors. PATIENT-SUBJECT SELECTION AND METHODOLOGY: All cases born 1993-2010, identified by diagnostic codes applicable to PH and retrieved from the Swedish Registry of Congenital Heart Disease (N = 67)...
November 1, 2016: Pediatric Pulmonology
https://www.readbyqxmd.com/read/27777530/venous-myocardial-infarction-in-an-infant-with-obstructed-totally-anomalous-pulmonary-venous-drainage-and-coronary-sinus-ostial-atresia
#6
Deepa Prasad, James P Strainic, Khyati Pandya, Peter C Kouretas, Ravi C Ashwath
We report a rare causal association between obstructed supracardiac totally anomalous pulmonary venous drainage and coronary sinus ostial atresia. Our 12-week-old patient developed venous myocardial infarction secondary to coronary venous hypertension because her sole route of coronary venous drainage was obstructed. She recovered after the obstruction was relieved by balloon dilation. Surgical repair then included anastomosis of the pulmonary venous confluence to the left atrium, ligation of the vertical vein, and unroofing of the coronary sinus...
October 2016: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/27777426/survival-and-neurodevelopmental-outcomes-of-very-low-birth-weight-infants-in-a-regional-core-hospital-in-kochi-japan
#7
Hidehiko Maruyama, Yusei Nakata, Akane Kanazawa, Kiyoshi Kikkawa
We sought to clarify the survival and neurodevelopmental outcomes of very low birth weight infants (VLBWIs) and to identify risk factors for death or neurodevelopmental impairment (NDI) in VLBWIs at our hospital. The total study population was 217 infants born in 2005-2012 weighing 1,500 g. We compared their outcomes with those from previous reports analyzed the causes of death. Risk factors for death after discharge or NDI were evaluated by a multivariate logistic regression analysis. The incidences of death or NDI reported revealed in this study and the database of Neonatal Research Network of Japan were 25...
October 2016: Acta Medica Okayama
https://www.readbyqxmd.com/read/27760764/bnp-troponin-i-and-ykl-40-as-screening-markers-in-extremely-preterm-infants-at-risk-for-pulmonary-hypertension-associated-with-bronchopulmonary-dysplasia
#8
Kai König, Katelyn J Guy, Claudia A Nold-Petry, Charles P Barfield, Geraldine Walsh, Sandra M Drew, Alex Veldman, Marcel F Nold, Dan M Casalaz
Bronchopulmonary dysplasia (BPD) is often complicated by pulmonary hypertension (PH). We investigated three biomarkers potentially suitable as screening markers for extremely preterm infants at risk of BPD-associated PH. In this prospective observational cohort study conducted in a tertiary neonatal intensive care unit, 83 preterm infants with BPD born <28 weeks gestation and still inpatients at 36 weeks corrected age received an echocardiogram and blood tests of B-type natriuretic peptide (BNP), troponin I, and YKL-40...
October 19, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27760762/endothelin-1-rho-kinase-interactions-impair-lung-structure-and-cause-pulmonary-hypertension-after-bleomycin-exposure-in-neonatal-rat-pups
#9
Jason Gien, Nancy Tseng, Gregory J Seedorf, Katherine Kuhn, Steven H Abman
Bronchopulmonary dysplasia (BPD) is the chronic lung disease associated with premature birth, characterized by impaired vascular and alveolar growth. In neonatal rats bleomycin decreases lung growth and causes pulmonary hypertension (PH), which is poorly responsive to nitric oxide. In the developing lung, through rho-kinase (ROCK) activation, ET-1 impairs endothelial cell function, however, whether ET-1-ROCK interactions contribute to impaired vascular and alveolar growth in experimental BPD is unknown. Neonatal rats were treated daily with intra-peritoneal bleomycin with and without selective ETA (BQ123/BQ610) and ETB (BQ788) receptor blockers, non-selective ET receptor blocker (ETRB) (bosentan) or fasudil (ROCK inhibitor)...
October 19, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27746092/catheter-based-palliation-in-an-infant-with-obstructed-cor-triatriatum
#10
Michael Khoury, Juan Pablo Sandoval, Lars Grosse-Wortmann, Edgar Jaeggi, Rajiv R Chaturvedi
A 33-day-old infant with obstructed cor triatriatum sinister and partial anomalous pulmonary venous drainage presented with respiratory distress and fever. Her suprasystemic pulmonary hypertension was relieved by opening the connection to the right atrium using balloon atrial septoplasty and septostomy, and to the inferior chamber using balloon dilation of a fenestration in the dividing membrane. This enabled extubation and discharge, with elective surgical repair at 2 months. To our knowledge, this is the youngest patient to receive a catheter intervention for obstructed cor triatriatum sinister, providing relief of pulmonary hypertension and postponement of surgical repair...
July 15, 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/27744568/noradrenaline-in-preterm-infants-with-cardiovascular-compromise
#11
Kirsten Rowcliff, Koert de Waal, Abdel-Latif Mohamed, Tejasvi Chaudhari
: Noradrenaline (NA) is beneficial in the treatment of term newborns with cardiovascular compromise due to sepsis or pulmonary hypertension, but experiences with NA in preterm infants are limited. The aim of this study is to describe the efficacy and safety of NA in preterm infants. Patient records of preterm infants ≤32 weeks' gestation admitted to two hospitals between 2004 and 2015 and who received NA were reviewed for perinatal morbidities and mortality. Clinical details were collected at the time of NA use, and response on blood pressure, perfusion and oxygenation was documented as well as possible side effects...
October 15, 2016: European Journal of Pediatrics
https://www.readbyqxmd.com/read/27723858/evaluation-of-variability-in-inhaled-nitric-oxide-use-and-pulmonary-hypertension-in-patients-with-congenital-diaphragmatic-hernia
#12
Luke R Putnam, Kuojen Tsao, Francesco Morini, Pamela A Lally, Charles C Miller, Kevin P Lally, Matthew T Harting
Importance: Inhaled nitric oxide (iNO) is an expensive, commonly used therapy among patients with congenital diaphragmatic hernia (CDH); however, data to support its ongoing use in this patient population are lacking. Objective: To describe the spectrum of iNO use among patients with CDH and its association with pulmonary hypertension (pHTN) and mortality. Design, Setting, and Participants: A review was conducted of prospectively collected patient data in the Congenital Diaphragmatic Hernia Study Group registry between January 1, 2007, and December 31, 2014, from 70 participating centers in 13 countries...
October 10, 2016: JAMA Pediatrics
https://www.readbyqxmd.com/read/27718120/ceftriaxone-associated-biliary-and-cardiopulmonary-adverse-events-in-neonates-a-systematic-review-of-the-literature
#13
Patrick C Donnelly, Rebecca M Sutich, Ryan Easton, Oluwatunmise A Adejumo, Todd A Lee, Latania K Logan
BACKGROUND: Ceftriaxone is a third-generation cephalosporin with broad-spectrum activity against both Gram-positive and Gram-negative bacteria. Despite its effectiveness, its use for the treatment of infections in neonatal patients has been limited because of concern about its potential toxicity. OBJECTIVE: Our aim was to review the literature for an association between ceftriaxone and cardiopulmonary events, hyperbilirubinemia, and pseudolithiasis among neonates...
October 7, 2016: Paediatric Drugs
https://www.readbyqxmd.com/read/27716811/risk-factors-and-clinical-outcomes-in-preterm-infants-with-pulmonary-hypertension
#14
Joseph M Collaco, Gul H Dadlani, Melanie K Nies, Jenny Leshko, Allen D Everett, Sharon A McGrath-Morrow
BACKGROUND: Pulmonary hypertension (PH) is a significant cause of morbidity in preterm infants, but no screening guidelines exist. We sought to identify risk factors and clinical outcomes associated with PH in preterm infants to develop a PH risk score. METHODS: Retrospective analysis of two separate populations of preterm infants (NICU cohort n = 230; Clinic registry n = 580). RESULTS: 8.3% of the NICU cohort had PH after 4 weeks of age, while 14...
2016: PloS One
https://www.readbyqxmd.com/read/27713810/the-clinical-course-of-patients-with-atrial-septal-defects
#15
Mostafa Behjati-Ardakani, Mohammad Golshan, Sedigheh Akhavan-Karbasi, Seyed-Masood Hosseini, Mohammad-Amin Behjati-Ardakani, Mohammadtaghi Sarebanhassanabadi
BACKGROUND: Atrial septal defect (ASD) is a common congenital heart disease. OBJECTIVES: The aim of this study was to assess the clinical course of ASD, as well as its frequency of spontaneous closure and regression of diameter. METHODS: In a study conducted from 2000 to 2011, 192 consecutive patients with an isolated ASD were followed up regularly with periodic echocardiographic evaluations according to a standardized protocol. The study was conducted in two series of patients: infants and children and adults...
August 2016: Iranian Journal of Pediatrics
https://www.readbyqxmd.com/read/27711045/non-invasive-inhaled-nitric-oxide-in-the-treatment-of-hypoxemic-respiratory-failure-in-term-and-preterm-infants
#16
R Sahni, X Ameer, K Ohira-Kist, J-T Wung
OBJECTIVES: Inhaled nitric oxide (iNO) is effective in conjunction with tracheal intubation (TI) and mechanical ventilation (MV) for treating arterial pulmonary hypertension and hypoxemic respiratory failure (HRF) in near-term and term newborns. Non-invasive respiratory support with nasal continuous positive airway pressure (CPAP) is increasingly used to avoid morbidity associated with TI and MV, yet the effectiveness of iNO delivery via nasal CPAP remains unknown. To evaluate the effectiveness of iNO delivered via the bubble nasal CPAP system in term and preterm newborns with HRF...
October 6, 2016: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/27711043/right-ventricular-performance-using-myocardial-deformation-imaging-in-infants-with-bronchopulmonary-dysplasia
#17
U Haque, C Stiver, B K Rivera, B Richards, N Ma, C L Cua, C V Smith, C H Backes
OBJECTIVE: Right ventricular (RV) performance among infants with bronchopulmonary dysplasia (BPD) remains poorly understood. We tested the hypothesis that myocardial deformation imaging (MDI) strain and strain rate would allow for differentiation between infants with severe and milder forms of BPD, independent of tissue Doppler imaging (TDI) and superior to conventional echocardiographic measurements. STUDY DESIGN: Infants with various severities of BPD (11 with none or mild, 13 with moderate and 10 with severe) underwent conventional echocardiography, TDI and MDI assessments at >36 weeks of corrected gestational age...
October 6, 2016: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/27696630/single-center-experience-of-extracorporeal-membrane-oxygenation-in-61-neonates
#18
Eiji Hirakawa, Satoshi Ibara, Takuya Tokuhisa, Yoshinobu Maede, Takako Kuwahara, Chie Ishihara, Hiroyuki Noguchi, Yoshiki Naitou, Masakatsu Yamamoto, Masaya Kibe, Tsuyoshi Yamamoto, Tomonori Kurimoto, Masato Kamitomo, Kazutoshi Cho, Hisanori Minakami
BACKGROUND: There have been few reports regarding outcomes after extracorporeal membrane oxygenation (ECMO) in newborn Japanese infants. METHODS: A review of 61 neonates with ECMO through January 1995 at a single center was performed. ECMO was used in neonates with oxygenation index > 20 after conventional treatments. Background factors, such as etiology, vascular access mode (veno-venous [VV] or veno-arterial [VA]), number of days with ECMO, and early ECMO (within 24 hours after birth), were analyzed in relation to outcome with respect to survival to hospital discharge (SHD)...
October 3, 2016: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/27692860/pulmonary-arterial-hypertension-after-ibuprofen-treatment-for-patent-ductus-arteriosus-in-very-low-birth-weight-infants
#19
Sae Yun Kim, Seung Han Shin, Han-Suk Kim, Young Hwa Jung, Ee-Kyung Kim, Jung-Hwan Choi
OBJECTIVE: To describe the clinical course and risk factors for pulmonary arterial hypertension (PAH) after ibuprofen treatment to close patent ductus arteriosus. STUDY DESIGN: All neonates weighing < 1500 g at birth who received ibuprofen to close patent ductus arteriosus and were admitted to Seoul National University Children's Hospital's neonatal intensive care unit in 2010-2014 were eligible for this study. The study population was divided into the PAH and non-PAH groups, and medical records were retrospectively reviewed...
September 28, 2016: Journal of Pediatrics
https://www.readbyqxmd.com/read/27689102/bronchopulmonary-dysplasia-in-preterm-infants-born-at-less-than-32-weeks-gestation
#20
Yan-Ping Xu
OBJECTIVES: Bronchopulmonary dysplasia (BPD) is a chronic pulmonary disorder affecting preterm infants. We studied the factors and echocardiographic evidence of early pulmonary hypertension (PH) associated with moderate or severe BPD. METHODS: We retrospectively reviewed preterm infants who were born at <32 weeks gestation and admitted to the neonatal intensive care unit at the Children's Hospital of Zhejiang University School of Medicine between July 2013 and July 2015...
2016: Global Pediatric Health
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