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pulmonary hypertension in infants

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https://www.readbyqxmd.com/read/29345197/neonatal-hyperoxia-depletes-pulmonary-vein-cardiomyocytes-in-adult-mice-via-mitochondrial-oxidation
#1
Min Yee, Ethan David Cohen, William Domm, George A Porter, Andrew N McDavid, Michael A O'Reilly
Supplemental oxygen given to preterm infants has been associated with permanently altering postnatal lung development. Now that these individuals are reaching adulthood, there is growing concern that early-life oxygen exposure may also promote cardiovascular disease through poorly understood mechanisms. We previously reported that adult mice exposed to 100% oxygen between postnatal days 0-4 develop pulmonary hypertension defined pathologically by capillary rarefaction, dilation of arterioles and veins, cardiac failure, and a reduced lifespan...
January 18, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29345193/serotonin-2a-receptor-inhibition-protects-against-the-development-of-pulmonary-hypertension-and-pulmonary-vascular-remodeling-in-neonatal-mice
#2
Cassidy Delaney, Laurie Sherlock, Susan Fisher, Joanne K Maltzahn, Clyde J Wright, Eva Nozik-Grayck
Pulmonary hypertension (PH) complicating bronchopulmonary dysplasia (BPD) worsens clinical outcomes in former preterm infants. Increased serotonin (5-hydroxytryptamine, 5-HT) signaling plays a prominent role in PH pathogenesis and progression in adults. We hypothesized that increased 5-HT signaling contributes to the pathogenesis of neonatal PH complicating BPD and neonatal lung injury. Thus, we interrogated 5-HT signaling in neonatal mice exposed to bleomycin, previously demonstrated to induce PH and alveolar simplification...
January 18, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29344379/changes-in-contractile-protein-expression-are-linked-to-ventricular-stiffness-in-infants-with-pulmonary-hypertension-or-right-ventricular-hypertrophy-due-to-congenital-heart-disease
#3
Andrew R Bond, Dominga Iacobazzi, Safa Abdul-Ghani, Mohammed Ghorbel, Kate Heesom, Mariangela Wilson, Christopher Gillett, Sarah J George, Massimo Caputo, Saadeh Suleiman, Robert M R Tulloh
Background: The right ventricle (RV) is not designed to sustain high pressure leading to failure. There are no current medications to help RV contraction, so further information is required on adaption of the RV to such hypertension. Methods: The Right Ventricle in Children (RVENCH) study assessed infants with congenital heart disease undergoing cardiac surgery with hypertensive RV. Clinical and echocardiographic data were recorded, and samples of RV were taken from matched infants, analysed for proteomics and compared between pathologies and with clinical and echocardiographic outcome data...
2018: Open Heart
https://www.readbyqxmd.com/read/29341209/identification-of-gaps-in-the-current-knowledge-on-pulmonary-hypertension-in-extremely-preterm-infants-a-systematic-review-and-meta-analysis
#4
REVIEW
Sanne Arjaans, Elvira A H Zwart, Mark-Jan Ploegstra, Arend F Bos, Elisabeth M W Kooi, Hans L Hillege, Rolf M F Berger
BACKGROUND: Pulmonary hypertension complicates the clinical course of extremely preterm infants and is associated with bronchopulmonary dysplasia (BPD). However, prevalence, risk factors, and outcome of pulmonary hypertension in these infants are insufficiently known. This systematic review and meta-analysis aims to provide an up-to-date overview of available data on prevalence, risk factors, and outcome of pulmonary hypertension and to identify current knowledge gaps. METHODS: Medline, EMBASE, and the Cochrane Library databases were searched in July 2017...
January 17, 2018: Paediatric and Perinatal Epidemiology
https://www.readbyqxmd.com/read/29338874/extracorporeal-membrane-oxygenation-in-infants-with-congenital-diaphragmatic-hernia
#5
REVIEW
Theresa R Grover, Natalie E Rintoul, Holly L Hedrick
Congenital diaphragmatic hernia (CDH) is a severe congenital anomaly which impairs normal pulmonary development leading to acute and chronic respiratory failure, pulmonary hypoplasia, pulmonary hypertension, and mortality. CDH is the most common non-cardiac indication for neonatal ECMO. Prenatal and postnatal predictors of CDH severity aid in patient selection. Centers vary in preferred mode of ECMO and timing of CDH repair. Survivors of severe CDH with ECMO are at risk for long-term sequelae including neurodevelopmental delays...
January 12, 2018: Seminars in Perinatology
https://www.readbyqxmd.com/read/29336386/retrospective-study-of-complete-atrioventricular-canal-defects-anesthetic-and-perioperative-challenges
#6
Aniruddha Ramesh Janai, Wilfried Bellinghausen, Edwin Turton, Carmine Bevilacqua, Waseem Zakhary, Martin Kostelka, Farhad Bakhtiary, Joerg Hambsch, Ingo Daehnert, Florian Loeffelbein, Joerg Ender
OBJECTIVE: The objective of this study was to highlight anesthetic and perioperative management and the outcomes of infants with complete atrioventricular (AV) canal defects. DESIGN: This retrospective descriptive study included children who underwent staged and primary biventricular repair for complete AV canal defects from 1999 to 2013. SETTING: A single-center study at a university affiliated heart center. PARTICIPANTS: One hundred and fifty-seven patients with a mean age at surgery of 125 ± 56...
January 2018: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/29335086/-research-progress-in-drug-therapy-for-bronchopulmonary-dysplasia-in-preterm-infants
#7
Yu-Chen Yang, Jian Mao, Juan Li
Bronchopulmonary dysplasia (BPD) is the most common long-term complication in surviving extremely preterm infants. This may lead to pulmonary hypertension, increase late neonatal mortality, and cause abnormal neural development. There is still controversy over the efficacy, as well as advantages and disadvantages, of drug therapy for BPD in preterm infants. This article reviews the research progress in the drug therapy for BPD.
January 2018: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29333219/clinical-utility-of-echocardiography-for-early-and-late-pulmonary-hypertension-in-preterm-infants-relation-with-bronchopulmonary-dysplasia
#8
Yo Han Seo, Hee Joung Choi
Background: We evaluated early and late pulmonary hypertension (PH) in preterm infants and its relation with bronchopulmonary dysplasia (BPD). Methods: Sixty-seven preterm infants < 30 weeks' gestation underwent echocardiography within 14 days after birth for early PH and over 28 days after birth for late PH. We measured tricuspid regurgitation (TR) peak velocity, pulse Doppler-derived myocardial performance index (MPI) of right ventricle (RV) (RV MPI), eccentricity index (EI), and tricuspid annular plane systolic excursion (TAPSE)...
December 2017: Journal of Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29332910/successful-infant-pneumonectomy-with-unilateral-pulmonary-artery-occlusion-test
#9
Koji Kato, Taichi Kato, Satoshi Hayano, Yoshie Fukasawa, Atsushi Numaguchi, Tetsuo Hattori, Akiko Saito, Yoshiaki Sato, Masahiro Hayakawa
The use of unilateral pulmonary artery occlusion (UPAO) test for the preoperative evaluation of pneumonectomy was reported in adult patients. On the contrary, in infants, no strategies have yet been recommended to predict hemodynamics after pneumonectomy, nor has use of the UPAO test been reported. We describe the first case of infant with abnormal pulmonary circulation in whom successful pneumonectomy was performed after preoperative evaluation using UPAO test. Right pneumonectomy was planned for an 8-month-old girl, because of decreased right pulmonary function, high risk of pneumothorax, and impaired left lung expansion due to overexpansion caused by severe left bronchial stenosis and bronchomalacia...
January 15, 2018: International Heart Journal
https://www.readbyqxmd.com/read/29329432/cardiac-surgical-strategy-for-extremely-low-birthweight-infants-with-pulmonary-overcirculation
#10
Takashi Kido, Kyoichi Nishigaki, Yoichi Kawahira, Koji Kagisaki, Kazuki Tanimoto, Eiji Ehara, Yosuke Murakami
OBJECTIVES: This study aimed to review the clinical outcomes of staged cardiac surgery in extremely low-birthweight infants with congenital heart disease and pulmonary overcirculation. METHODS: Six extremely low-birthweight infants with congenital heart disease and pulmonary overcirculation underwent staged cardiac surgery between 2005 and 2017. The median birthweight was 895 g (range 620-990 g), and the median gestational age was 28 weeks (range 23-31 weeks)...
January 9, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29322607/stenting-of-the-inter-atrial-septum-in-infants-and-small-children-indications-techniques-and-outcomes
#11
Gur Mainzer, Sebastian Goreczny, Gareth J Morgan, Shakeel Qureshi, Thomas Krasemann, Pawel Dryzek, Jadwiga A Moll, Tomasz Moszura, Eric Rosenthal
OBJECTIVES: To evaluate the procedural success and outcome of inter-atrial stenting. BACKGROUND: Inter-atrial stenting has been shown to be an effective way to maintain inter-atrial blood flow, however it is considered a high risk procedure, usually performed urgently in patients with significant hemodynamic compromise. METHODS: Between September 2004 and August 2016, inter-atrial stenting was attempted in 29 children. Procedural, clinical, and follow-up data were collected retrospectively...
January 11, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29319632/extracorporeal-membrane-oxygenation-for-pertussis-predictors-of-outcome-including-pulmonary-hypertension-and-leukodepletion
#12
Michele Domico, Deborah Ridout, Graeme MacLaren, Ryan Barbaro, Gail Annich, Luregn J Schlapbach, Katherine L Brown
OBJECTIVE: The recent increase of pertussis cases worldwide has generated questions regarding the utility of extracorporeal membrane oxygenation for children with pertussis. We aimed to evaluate factors associated with extracorporeal membrane oxygenation outcome. DESIGN: The study was designed in two parts: a retrospective analysis of the Extracorporeal Life Support Organization Registry to identify factors independently linked to outcome, and an expanded dataset from individual institutions to examine the association of WBC count, pulmonary hypertension, and leukodepletion with survival...
January 9, 2018: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/29316539/cyanosis-and-stroke-due-to-functional-cor-triatriatum-dexter-in-a-neonate
#13
Rachel L León, Nicholas B Zaban, Marcus S Schamberger, Chang Y Ho, Ulrike Mietzsch
Small remnants of the right valve of the sinus venosus are commonly found in adults, but the incidence and risk associated with these embryonic remnants in neonates are not well studied. The following report describes a cyanotic neonate with a large Eustachian valve remnant creating a functional cor triatriatum dexter who was initially diagnosed with persistent pulmonary hypertension of the newborn. The cyanosis in this infant improved over the first postnatal week with conservative management, but she suffered multifocal subcortical stroke, likely related to her intracardiac shunt...
January 10, 2018: Neonatology
https://www.readbyqxmd.com/read/29316358/continuous-intravenous-sildenafil-as-an-early-treatment-in-neonates-with-congenital-diaphragmatic-hernia
#14
Florian Kipfmueller, Lukas Schroeder, Christoph Berg, Katrin Heindel, Peter Bartmann, Andreas Mueller
BACKGROUND: Pulmonary hypertension (PH) is an important contributor of morbidity and mortality in infants with congenital diaphragmatic hernia (CDH). Treatment options are limited, but sildenafil might improve oxygenation and PH in neonates with CDH. OBJECTIVE: Aim of this study is to assess effects of intravenous sildenafil on oxygenation and PH in neonates with CDH. METHODS: A retrospective chart review was performed in all neonates with CDH born in our institution between September 2012 and December 2014...
January 5, 2018: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29310361/severe-pertussis-infection-a-clinicopathological-study
#15
Fernando Palvo, Alexandre Todorovic Fabro, Maria Célia Cervi, Davi Casale Aragon, Fernando Silva Ramalho, Ana Paula de Carvalho Panzeri Carlotti
We aimed to investigate the clinicopathological features of pertussis in children admitted to a tertiary-care university hospital in Brazil.This was a retrospective cohort study of all pediatric hospital admissions with pertussis from January 1, 2008 to December 31, 2014. We also reported the autopsy findings in children who died.Fifty-five patients admitted to the hospital over the study period had laboratorial confirmation of Bordetella pertussis infection, 17 (30.9%) needed pediatric intensive care unit (PICU) admission and 6 (10...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29302380/a-case-of-fatal-pulmonary-hypoplasia-with-congenital-diaphragmatic-hernia-thoracic-myelomeningocele-and-thoracic-dysplasia
#16
Ai Ito, Hideshi Fujinaga, Sachiko Matsui, Kumiko Tago, Yuka Iwasaki, Shuhei Fujino, Junko Nagasawa, Shoichiro Amari, Masao Kaneshige, Yuka Wada, Shigehiro Takahashi, Keiko Tsukamoto, Osamu Miyazaki, Takako Yoshioka, Akira Ishiguro, Yushi Ito
Background  Congenital diaphragmatic hernia (CDH) is fatal in severe cases of pulmonary hypoplasia. We experienced a fatal case of pulmonary hypoplasia due to CDH, thoracic myelomeningocele (MMC), and thoracic dysplasia. This constellation of anomalies has not been previously reported. Case Report  A male infant with a prenatal diagnosis of thoracic MMC with severe hydrocephalus and scoliosis was born at 36 weeks of gestation. CDH was found after birth and the patient died of respiratory failure due to pulmonary hypoplasia and persistent pulmonary hypertension of the newborn at 30 hours of age despite neonatal intensive care...
October 2017: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/29298856/persistent-pulmonary-hypertension-of-the-newborn-in-extremely-preterm-infants-a-japanese-cohort-study
#17
Hidehiko Nakanishi, Hideyo Suenaga, Atsushi Uchiyama, Satoshi Kusuda
OBJECTIVE: To investigate the characteristics of persistent pulmonary hypertension of the newborn (PPHN) in extremely preterm infants and its impact on neurodevelopmental outcomes at 3 years of age. DESIGN: A retrospective multicentre cohort study. SETTINGS: 202 tertiary perinatal centres registered in the Neonatal Research Network of Japan (NRNJ). PATIENTS: Infants born at <28 weeks of gestational age (GA), between 2003 and 2012, were extracted from tertiary perinatal centres participating in NRNJ...
January 3, 2018: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/29281864/long-term-effects-of-neonatal-hyperoxia-in-adult-mice
#18
Vasantha Hs Kumar, Huamei Wang, Sergei Kishkurno, Babu S Paturi, Lori Nielsen, Rita M Ryan
BACKGROUND: The outcomes of premature infants have improved greatly, however the health risks in adulthood are still relatively unclear. Bronchopulmonary dysplasia (BPD) in premature infants is a major risk factor producing alteration in lung function and predisposition to later respiratory morbidity, and is associated with hyperoxia. This study explores the effect of neonatal hyperoxia on organ systems in adult mice. METHODS: Newborn mouse litters were randomized to 85%O2 or room air (RA) on P3 for 12 days; mice were sacrificed at P3, P7, P15, 3 months and 9 months...
December 27, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29242417/phase-changing-material-for-therapeutic-hypothermia-in-neonates-with-hypoxic-ischemic-encephalopathy-a-multi-centric-study
#19
Niranjan Thomas, Thangaraj Abiramalatha, Vishnu Bhat, Manoj Varanattu, Suman Rao, Sanjay Wazir, Leslie Lewis, Umamaheswari Balakrishnan, Srinivas Murki, Jaikrishnan Mittal, Ashish Dongara, Y N Prashantha, Somashekhar Nimbalkar
OBJECTIVE: To assess the feasibility and safety of cooling asphyxiated neonates using phase changing material based device across different neonatal intensive care units in India. DESIGN: Multi-centric uncontrolled clinical trial. SETTING: 11 level 3 neonatal units in India from November 2014 to December 2015. PARTICIPANTS: 103 newborn infants with perinatal asphyxia, satisfying pre-defined criteria for therapeutic hypothermia...
December 14, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/29234146/practices-surrounding-pulmonary-hypertension-and-bronchopulmonary-dysplasia-amongst-neonatologists-caring-for-premature-infants
#20
Gabriel Altit, Henry C Lee, Susan Hintz, Theresa A Tacy, Jeffrey A Feinstein, Shazia Bhombal
OBJECTIVE: Pulmonary hypertension (PH) is associated with bronchopulmonary dysplasia (BPD). Screening strategies, a thorough investigation of co-morbidities, and multidisciplinary involvement prior to anti-PH medications have been advocated by recent guidelines. We sought to evaluate current practices of neonatologists caring for premature infants with PH. DESIGN: Electronic survey of American Academy of Pediatrics neonatology members. RESULTS: Among 306 neonatologist respondents, 38% had an institutional screening protocol for patients with BPD; 83% screened at 36 weeks for premature neonates on oxygen/mechanical ventilation...
December 12, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
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