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pulmonary hypertension newborn

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https://www.readbyqxmd.com/read/28771211/the-fetus-can-teach-us-oxygen-and-the-pulmonary-vasculature
#1
REVIEW
Payam Vali, Satyan Lakshminrusimha
Neonates suffering from pulmonary hypertension of the newborn (PPHN) continue to represent an important proportion of patients requiring intensive neonatal care, and have an increased risk of morbidity and mortality. The human fetus has evolved to maintain a high pulmonary vascular resistance (PVR) in utero to allow the majority of the fetal circulation to bypass the lungs, which do not participate in gas exchange, towards the low resistance placenta. At birth, oxygen plays a major role in decreasing PVR to enhance pulmonary blood flow and establish the lungs as the organ of gas exchange...
August 3, 2017: Children
https://www.readbyqxmd.com/read/28768234/human-mesenchymal-stem-cells-ameliorate-experimental-pulmonary-hypertension-induced-by-maternal-inflammation-and-neonatal-hyperoxia-in-rats
#2
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 × 105 and 1 × 106 cells) in 0...
July 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28755186/liver-transplantation-for-hereditary-tyrosinaemia-type-1-in-the-united-kingdom
#3
Patrick McKiernan
Fourteen children have undergone liver transplantation for hereditary tyrosinaemia type 1 (HT1) at Birmingham Children's hospital (BCH) since 1989; six were treated prior to the availability of Nitisinone in 1993 and eight in the post Nitisinone era. Prior to 1993 essentially all children with HT1 were referred for transplantation. In the Nitisinone era only those with unresponsive liver failure or suspected malignancy were considered for transplantation. Those who were treated pre-emptively following newborn screening have no evidence of liver disease and none have required transplantation...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28742524/early-postnatal-echocardiographic-assessment-of-pulmonary-blood-flow-in-newborns-with-congenital-diaphragmatic-hernia
#4
Florian Kipfmueller, Katrin Heindel, Lukas Schroeder, Christoph Berg, Oliver Dewald, Heiko Reutter, Peter Bartmann, Andreas Mueller
OBJECTIVE: Echocardiography is the most important tool to assess infants with congenital diaphragmatic hernia (CDH) for pulmonary hypertension (PH). The pattern of blood flow in the pulmonary artery [described as time to peak velocity (TPV)/right ventricular ejection time (RVET) ratio] provides distinct information about pulmonary arterial pressure. The aim of our study was to investigate the correlation of TPV/RVET measurements with the most commonly used classification system for PH in CDH newborns and the association of these measurements with outcome parameters...
July 25, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28737730/sildenafil-in-infants-and-children
#5
REVIEW
Larisa Simonca, Robert Tulloh
Pulmonary arterial hypertension (PAH) management has been transformed in recent times with the advent of cheap and effective diagnostic tools and therapy. Sildenafil, a phosphodiesterase-V inhibitor, has been at the centre of this treatment, and its success in treating PAH has led to its widespread uptake in adult and paediatric pulmonary hypertension (PH), as a first line treatment choice. This might apply to persistent pulmonary hypertension of the newborn (PPHN) or bronchopulmonary dysplasia, as well as to more complex diseases, such as idiopathic pulmonary hypertension...
July 24, 2017: Children
https://www.readbyqxmd.com/read/28735030/effect-of-bosentan-therapy-in-persistent-pulmonary-hypertension-of-the-newborn
#6
Gunlawadee Maneenil, Anucha Thatrimontrichai, Waricha Janjindamai, Supaporn Dissaneevate
BACKGROUND: Persistent pulmonary hypertension of the newborn (PPHN) contributes to neonatal hypoxemia and is associated with a high mortality. Some PPHN patients are unresponsive to inhaled nitric oxide (iNO). Bosentan, an oral endothelin-1 receptor antagonist, reduces pulmonary vascular resistance and hence may play a role in the treatment of PPHN. METHODS: A retrospective medical records review was performed in newborns who received oral bosentan as an adjunctive therapy for treatment of PPHN between January 2013 and February 2016 at the neonatal intensive care unit of Songklanagarind Hospital...
July 11, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28734808/-congenital-cytomegalovirus-infection-manifesting-as-neonatal-respiratory-distress-in-an-hiv-exposed-uninfected-newborn
#7
A Pham, H El Mjati, N Nathan, F Kieffer, D Mitanchez
BACKGROUND: Cytomegalovirus (CMV) is one of the most common intrauterine infections, affecting approximately 1% of all live births. There are few reports on congenital CMV infections manifesting as isolated pneumonitis. CASE REPORT: We report a case of congenital CMV with neonatal respiratory distress affecting an HIV-exposed uninfected infant. This infant required noninvasive ventilation beginning within the first 15min of life. The initial chest X-ray showed diffuse bilateral ground-glass opacifications...
July 19, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28714905/effects-of-eicosapentaenoic-acid-epa-and-docosahexaenoic-acid-dha-on-fetal-pulmonary-circulation-an-experimental-study-in-fetal-lambs
#8
Dyuti Sharma, Estelle Aubry, Thavarak Ouk, Ali Houeijeh, Véronique Houfflin-Debarge, Rémi Besson, Philippe Deruelle, Laurent Storme
Background: Persistent pulmonary hypertension of the newborn (PPHN) causes significant morbidity and mortality in neonates. n-3 Poly-unsaturated fatty acids have vasodilatory properties in the perinatal lung. We studied the circulatory effects of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in fetal sheep and in fetal pulmonary arterial rings. Methods: At 128 days of gestation, catheters were placed surgically in fetal systemic and pulmonary circulation, and a Doppler probe around the left pulmonary artery (LPA)...
July 16, 2017: Nutrients
https://www.readbyqxmd.com/read/28714608/selective-serotonin-reuptake-inhibitors-during-pregnancy-do-we-have-now-more-definite-answers-related-to-prenatal-exposure
#9
REVIEW
Asher Ornoy, Gideon Koren
Despite extensive studies, there still seems to be uncertainty as to the possible reproductive risk of selective serotonin reuptake inhibitors (SSRIs) and selective serotonin norepinephrine reuptake inhibitors (SNRIs) in pregnancy. We, therefore, assess the current data on the risk/benefit of SSRI use in pregnancy. As the neurodevelopmental effects of SSRIs are discussed in another paper in this issue, we will not address the possible neurodevelopmental effects. Special emphasis is given to the newer, large population-based studies...
July 17, 2017: Birth defects research
https://www.readbyqxmd.com/read/28704848/red-cell-distribution-width-as-a-predictor-of-persistent-pulmonary-hypertension-of-the-newborn
#10
Setareh Sagheb, Mahdi Sepidarkish, Sayyed Ourmazd Mohseni, Amirhossein Movahedian, Ziba Mosayebi
No abstract text is available yet for this article.
July 13, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28704835/high-prevalence-of-pulmonary-hypertension-complicates-the-care-of-infants-with-omphalocele
#11
Shandee Hutson, Joanne Baerg, Douglas Deming, Shawn D St Peter, Andrew Hopper, Donna A Goff
BACKGROUND: Omphalocele is one of the most common abdominal wall defects. Many newborn infants born with omphalocele present with significant respiratory distress at birth, requiring mechanical ventilatory support, and have clinical evidence of pulmonary hypertension. Little information exists on the prevalence of and risk factors associated with pulmonary hypertension in this cohort of infants. OBJECTIVES: To describe the prevalence of and risk factors associated with pulmonary hypertension among infants with omphalocele...
July 14, 2017: Neonatology
https://www.readbyqxmd.com/read/28701189/stromal-derived-factor-1-mediates-the-lung-regenerative-effects-of-mesenchymal-stem-cells-in-a-rodent-model-of-bronchopulmonary-dysplasia
#12
Joel Reiter, Shelley Drummond, Ibrahim Sammour, Jian Huang, Victoria Florea, Polliana Dornas, Joshua M Hare, Claudia O Rodrigues, Karen C Young
BACKGROUND: Mesenchymal stem cells (MSCs) attenuate lung injury in experimental models of bronchopulmonary dysplasia (BPD). Stromal derived factor-1 (SDF-1), a chemokine secreted by MSCs, modulates angiogenesis and stem cell recruitment. Here we tested the hypothesis that SDF-1 mediates MSC protective effects in experimental BPD by modulating angiogenesis. METHODS: SDF-1 was knocked down in MSCs using lentiviral vectors carrying anti-SDF-1 short hairpin RNA (MSC-SDF KD)...
July 12, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28669620/prenatal-tdap-immunization-and-risk-of-maternal-and-newborn-adverse-events
#13
J Bradley Layton, Anne M Butler, Dongmei Li, Kim A Boggess, David J Weber, Leah J McGrath, Sylvia Becker-Dreps
Many countries recommend combined tetanus toxoid, reduced diphtheria toxoid and acellular pertussis immunization (Tdap) during pregnancy to stimulate transplacental transmission of pertussis antibodies to newborns. The immune system can be altered during pregnancy, potentially resulting in differing immunization risks in pregnant women. The safety of widespread Tdap immunization during pregnancy needs to be established. Our objective was to assess whether prenatal Tdap immunization was associated with adverse birth outcomes, and to evaluate the effect of timing of Tdap administration on these outcomes...
July 24, 2017: Vaccine
https://www.readbyqxmd.com/read/28658134/treprostinil-for-persistent-pulmonary-hypertension-of-the-newborn-with-early-onset-sepsis-in-preterm-infant-2-case-reports
#14
Bo Young Park, Sung-Hoon Chung
RATIONALE: Persistent pulmonary hypertension of the newborn (PPHN) is a syndrome of failed circulatory adaptation at birth with persisting increased pulmonary vascular resistance that is associated with high mortality rates especially in preterm infants. PATIENT CONCERNS: We reported 2 cases of PPHN in preterm infants with respiratory distress syndrome and early onset sepsis refractory to therapy with vasopressors, inotropes, and inhaled nitric oxide (iNO), in whom treatment with treprostinil was successful...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28629243/effect-of-therapeutic-hypothermia-on-myocardial-dysfunction-in-term-neonates-with-perinatal-asphyxia-a-randomized-controlled-trial
#15
K Rakesh, B Vishnu Bhat, B Adhisivam, P Ajith
OBJECTIVE: To evaluate the effect of therapeutic hypothermia on myocardial dysfunction in term neonates with perinatal asphyxia. MATERIAL AND METHODS: This randomized controlled trial (RCT) conducted in a tertiary care teaching hospital, south India included 120 newborns with perinatal asphyxia that were randomized to two groups (therapeutic hypothermia and normothermia). Cardiac enzyme profile changes between groups were assessed at 0, 24, 72 h CPK-MB and troponin I levels were estimated by immune inhibition and quantitative immunochromatography methods, respectively...
July 6, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28627661/altered-expression-of-ppar%C3%A2-%C3%AE-and-trpc-in-neonatal-rats-with-persistent-pulmonary-hypertension
#16
Yanna Du, Jianhua Fu, Li Yao, Lin Qiao, Na Liu, Yujiao Xing, Xindong Xue
Persistent pulmonary hypertension of the newborn (PPHN) is a life‑threatening disease that is commonly observed in the neonatal intensive care unit. PPHN is pathologically characterized by pulmonary vascular remodeling and, in particular, pulmonary artery smooth muscle cell (PASMC) proliferation. Decreased expression levels of peroxisome proliferator‑activated receptor γ (PPAR‑γ), which is a member of the nuclear receptor hormone superfamily, in combination with elevated expressions of transient receptor potential cation channel, subfamily C, member 1 (TRPC1) and TRPC6 contributes to the PASMC proliferation and excessive pulmonary vascular remodeling in adult pulmonary hypertension (PH)...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28609431/polymorphisms-in-urea-cycle-enzyme-genes-are-associated-with-persistent-pulmonary-hypertension-of-the-newborn
#17
Dinushan C Kaluarachchi, Caitlin J Smith, Jonathan M Klein, Jeffrey C Murray, John M Dagle, Kelli K Ryckman
BACKGROUND: Persistent pulmonary hypertension of the newborn (PPHN) is characterized by elevated pulmonary vascular resistance. Endogenous nitric oxide is critical for regulation of pulmonary vascular resistance. Nitric oxide is generated from L -arginine, supplied by the urea cycle (UC). We hypothesized that polymorphisms in UC enzyme genes and low concentrations of UC intermediates are associated with PPHN. METHODS: We performed a family based candidate gene analysis to study 48 single nucleotide polymorphisms (SNPs) in 6 UC enzyme genes...
June 13, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28600701/the-impact-of-exposure-to-antidepressant-medications-during-pregnancy-on-neonatal-outcomes-a-review-of-retrospective-database-cohort-studies
#18
REVIEW
Casey R Tak, Kathleen M Job, Katie Schoen-Gentry, Sarah C Campbell, Patrick Carroll, Maged Costantine, Diana Brixner, Angela K Birnbaum, Catherine M T Sherwin
INTRODUCTION: Concerns with prescription antidepressant use in pregnant women have instigated the examination of potential associations between fetal exposure to antidepressant medication and outcomes including preterm delivery, congenital malformations, perinatal and post-natal adverse events, persistent pulmonary hypertension, and mortality. The retrospective cohort model is an often utilized study design. The objective of this review is to evaluate the literature on antidepressant use in pregnancy conducted as retrospective cohorts in national/regional medical, or claims databases that assess neonatal and infant outcomes for agreement between studies, ultimately providing a methodological and outcomes summary for future scientific endeavors...
September 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28567061/therapeutic-hypothermia-in-asphyxiated-neonates-experience-from-neonatal-intensive-care-unit-of-university-hospital-of-marrakech
#19
F M R Maoulainine, M Elbaz, S Elfaiq, G Boufrioua, F Z Elalouani, M Barkane, Nadia El Idrissi Slitine
INTRODUCTION: Therapeutic hypothermia (TH) is now recommended for the treatment neonates with hypoxic-ischemic encephalopathy (HIE). This treatment protocol is applied in our department since June 2012. The aim of this study is to report the first experience with head cooling in asphyxiated neonates in Morocco. PATIENTS AND METHODS: Prospective study of newborns admitted for HIE from July 18, 2012, to May 15, 2014, in Neonatal Intensive Care Unit (NICU) of Mohamed VI University Hospital...
2017: International Journal of Pediatrics
https://www.readbyqxmd.com/read/28511469/clinical-profile-and-outcome-of-newborns-with-acute-kidney-injury-in-a-level-3-neonatal-unit-in-western-india
#20
Satvik Chaitanya Bansal, Archana Somashekhar Nimbalkar, Amit R Kungwani, Dipen Vasudev Patel, Ankur Rajinder Sethi, Somashekhar Marutirao Nimbalkar
INTRODUCTION: Acute Kidney Injury (AKI) is a serious condition in neonatal care. It complicates the management necessitating the restrictive use of medications. AIM: To evaluate clinical profile, identify associated and prog-nostic factors in newborns with AKI. MATERIALS AND METHODS: This was a case control study done between January 2008 to January 2010. Total 1745 newborns were admitted, of which 74 babies had AKI. It was defined as serum creatinine >1...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
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