51
|
Siefkes HM, Lakshminrusimha S. Management of systemic hypotension in term infants with persistent pulmonary hypertension of the newborn: an illustrated review. Arch Dis Child Fetal Neonatal Ed 2021; 106:446-455. [PMID: 33478959 PMCID: PMC8217132 DOI: 10.1136/archdischild-2020-319705] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 12/22/2020] [Accepted: 12/29/2020] [Indexed: 01/03/2023]
Abstract
In persistent pulmonary hypertension of the newborn (PPHN), the ratio of pulmonary vascular resistance to systemic vascular resistance is increased. Extrapulmonary shunts (patent ductus arteriosus and patent foramen value) allow for right-to-left shunting and hypoxaemia. Systemic hypotension can occur in newborns with PPHN due to variety of reasons, such as enhanced peripheral vasodilation, impaired left ventricular function and decreased preload. Systemic hypotension can lead to end organ injury from poor perfusion and hypoxaemia in the newborn with PPHN. Thus, it must be managed swiftly. However, not all newborns with PPHN and systemic hypotension can be managed the same way. Individualised approach based on physiology and echocardiographic findings are necessary to improve perfusion to essential organs. Here we present a review of the physiology and mechanisms of systemic hypotension in PPHN, which can then guide treatment.
Collapse
|
52
|
Deshpande S, Suryawanshi P, Holkar S, Singh Y, Yengkhom R, Klimek J, Gupta S. Pulmonary hypertension in late onset neonatal sepsis using functional echocardiography: a prospective study. J Ultrasound 2021; 25:233-239. [PMID: 33991307 DOI: 10.1007/s40477-021-00590-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 04/27/2021] [Indexed: 11/28/2022] Open
Abstract
PURPOSE Pulmonary hypertension (PH) in the newborn period is associated with significant morbidity and mortality. Sepsis has been identified as an independent risk factor for PH in newborns. Data on the proportion and severity of PH in association with neonatal sepsis are scarce. This study was aimed to measure the pulmonary artery systolic pressure (PASP) in neonates with late onset sepsis (LOS) and to estimate the proportion of PH in neonatal sepsis using functional echocardiography (FnECHO). METHODS This prospective observational study was conducted at a tertiary neonatal intensive care unit (NICU). All neonates admitted in the NICU with suspected LOS underwent FnECHO within 6 hours of onset of clinical signs and PASP was recorded. Pulmonary hypertension was defined as PASP of > 35 mmHg. PASP of neonates with positive culture results (proven LOS) was compared with that of gestational age-matched stable controls without sepsis. RESULTS Thirty three neonates with proven LOS were analysed (study group). Sixteen neonates (49%) in the study group had PH. Mean PASP of the study group was significantly higher than that of the control group (35.3 ± 10.13 mmHg and 12.58 ± 3.92 mmHg, respectively; P < 0.0001). None of the neonates in the control group had PH. CONCLUSION Pulmonary artery pressure was higher in neonates with late onset neonatal sepsis as compared to that of stable babies without sepsis. Pulmonary hypertension was seen in nearly half of term as well as preterm neonates with late onset sepsis.
Collapse
Affiliation(s)
- Sujata Deshpande
- Department of Neonatology, Bharati Vidyapeeth University Medical College and Hospital, Dhankawadi, Pune, 411043, India
| | - Pradeep Suryawanshi
- Department of Neonatology, Bharati Vidyapeeth University Medical College and Hospital, Dhankawadi, Pune, 411043, India.
| | - Shrikant Holkar
- Department of Neonatology, Bharati Vidyapeeth University Medical College and Hospital, Dhankawadi, Pune, 411043, India
| | - Yogen Singh
- Cambridge University Hospitals, Cambridge, United Kingdom
| | - Rameshwor Yengkhom
- Department of Neonatology, Bharati Vidyapeeth University Medical College and Hospital, Dhankawadi, Pune, 411043, India
| | | | - Samir Gupta
- Division of Neonatology, Sidra Medicine, Doha, Qatar.,Durham University, Durham, United Kingdom
| |
Collapse
|
53
|
Mandell E, Kinsella JP, Abman SH. Persistent pulmonary hypertension of the newborn. Pediatr Pulmonol 2021; 56:661-669. [PMID: 32930508 DOI: 10.1002/ppul.25073] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 09/09/2020] [Accepted: 09/10/2020] [Indexed: 11/07/2022]
Abstract
Persistent pulmonary hypertension of the newborn (PPHN) is a significant clinical problem characterized by refractory and severe hypoxemia secondary to elevated pulmonary vascular resistance resulting in right-to-left extrapulmonary shunting of deoxygenated blood. PPHN is associated with diverse cardiopulmonary disorders and a high early mortality rate for infants with severe PPHN. Surviving infants with PPHN have an increased risk of long-term morbidities. PPHN physiology can be categorized by (1) maladaptation: pulmonary vessels have normal structure and number but have abnormal vasoreactivity; (2) excessive muscularization: increased smooth muscle cell thickness and increased distal extension of muscle to vessels that are usually not muscularized; and (3) underdevelopment: lung hypoplasia associated with decreased pulmonary artery number. Treatment involves adequate lung recruitment, optimization of cardiac output and left ventricular function, and pulmonary vasodilators such as inhaled nitric oxide. Infants who fail to respond to conventional therapy should be evaluated for lethal lung disorders including alveolar-capillary dysplasia, T-box transcription factor 4 gene, thyroid transcription factor-1, ATP-binding cassette A3 gene, and surfactant protein diseases.
Collapse
Affiliation(s)
- Erica Mandell
- Department of Pediatrics, The Pediatric Heart Lung Center, Children's Hospital Colorado, University of Colorado Anschutz Medical Center, Aurora, Colorado, USA
- Section of Neonatology, Department of Pediatrics, Children's Hospital Colorado, University of Colorado Anschutz Medical Center, Aurora, Colorado, USA
| | - John P Kinsella
- Department of Pediatrics, The Pediatric Heart Lung Center, Children's Hospital Colorado, University of Colorado Anschutz Medical Center, Aurora, Colorado, USA
- Section of Neonatology, Department of Pediatrics, Children's Hospital Colorado, University of Colorado Anschutz Medical Center, Aurora, Colorado, USA
| | - Steven H Abman
- Department of Pediatrics, The Pediatric Heart Lung Center, Children's Hospital Colorado, University of Colorado Anschutz Medical Center, Aurora, Colorado, USA
- Section of Pulmonary Medicine, Department of Pediatrics, Children's Hospital Colorado, University of Colorado Anschutz Medical Center, Aurora, Colorado, USA
| |
Collapse
|
54
|
Karvonen KL, Baer RJ, Rogers EE, Steurer MA, Ryckman KK, Feuer SK, Anderson JG, Franck LS, Gano D, Petersen MA, Oltman SP, Chambers BD, Neuhaus J, Rand L, Jelliffe-Pawlowski LL, Pantell MS. Racial and ethnic disparities in outcomes through 1 year of life in infants born prematurely: a population based study in California. J Perinatol 2021; 41:220-231. [PMID: 33514879 DOI: 10.1038/s41372-021-00919-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 12/08/2020] [Accepted: 01/14/2021] [Indexed: 11/09/2022]
Abstract
OBJECTIVES To investigate racial/ethnic differences in rehospitalization and mortality rates among premature infants over the first year of life. STUDY DESIGN A retrospective cohort study of infants born in California from 2011 to 2017 (n = 3,448,707) abstracted from a California Office of Statewide Health Planning and Development database. Unadjusted Kaplan-Meier tables and logistic regression controlling for health and sociodemographic characteristics were used to predict outcomes by race/ethnicity. RESULTS Compared to White infants, Hispanic and Black early preterm infants were more likely to be readmitted; Black late/moderate preterm (LMPT) infants were more likely to be readmitted and to die after discharge; Hispanic and Black early preterm infants with BPD were more likely to be readmitted; Black LMPT infants with RDS were more likely to be readmitted and die after discharge. CONCLUSIONS Racial/ethnic disparities in readmission and mortality rates exist for premature infants across several co-morbidities. Future studies are needed to improve equitability of outcomes.
Collapse
Affiliation(s)
- Kayla L Karvonen
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA.
| | - Rebecca J Baer
- California Preterm Birth Initiative, San Francisco, CA, USA.,Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Elizabeth E Rogers
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA.,California Preterm Birth Initiative, San Francisco, CA, USA
| | - Martina A Steurer
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA.,California Preterm Birth Initiative, San Francisco, CA, USA
| | - Kelli K Ryckman
- California Preterm Birth Initiative, San Francisco, CA, USA.,Department of Epidemiology, University of Iowa, Iowa City, IA, USA
| | - Sky K Feuer
- California Preterm Birth Initiative, San Francisco, CA, USA.,Department of Obstetrics, Gynecology & Reproductive Sciences, University of California San Francisco, San Francisco, CA, USA
| | - James G Anderson
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA.,California Preterm Birth Initiative, San Francisco, CA, USA
| | - Linda S Franck
- California Preterm Birth Initiative, San Francisco, CA, USA.,Department of Family Health Care Nursing, University of California, San Francisco, CA, USA
| | - Dawn Gano
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA.,California Preterm Birth Initiative, San Francisco, CA, USA
| | - Mark A Petersen
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA.,California Preterm Birth Initiative, San Francisco, CA, USA
| | - Scott P Oltman
- California Preterm Birth Initiative, San Francisco, CA, USA.,Department of Epidemiology and Statistics, University of California San Francisco, San Francisco, CA, USA
| | - Brittany D Chambers
- California Preterm Birth Initiative, San Francisco, CA, USA.,Department of Epidemiology and Statistics, University of California San Francisco, San Francisco, CA, USA
| | - John Neuhaus
- Department of Epidemiology and Statistics, University of California San Francisco, San Francisco, CA, USA
| | - Larry Rand
- California Preterm Birth Initiative, San Francisco, CA, USA.,Department of Epidemiology and Statistics, University of California San Francisco, San Francisco, CA, USA
| | - Laura L Jelliffe-Pawlowski
- California Preterm Birth Initiative, San Francisco, CA, USA.,Department of Epidemiology and Statistics, University of California San Francisco, San Francisco, CA, USA
| | - Matthew S Pantell
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA.,California Preterm Birth Initiative, San Francisco, CA, USA
| |
Collapse
|
55
|
González A, Bancalari A, Osorio W, Luco M, González A, Pérez H, Kattan J. Early use of combined exogenous surfactant and inhaled nitric oxide reduces treatment failure in persistent pulmonary hypertension of the newborn: a randomized controlled trial. J Perinatol 2021; 41:32-38. [PMID: 32792635 DOI: 10.1038/s41372-020-00777-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/16/2020] [Accepted: 08/03/2020] [Indexed: 11/10/2022]
Abstract
OBJECTIVE To evaluate whether combined surfactant with inhaled nitric oxide (iNO) use will prevent newborns with hypoxemic respiratory failure (HRF) from developing an Oxygenation Index (OI) > 40. METHODS 100 term newborns with acute HRF (OI ≥ 20) were randomized to: Surfactant+iNO: received iNO plus up to two doses of surfactant or iNO-Controls: received iNO+placebo. Main outcome was the development of severe HRF (OI > 40) despite iNO use. RESULTS Baseline mean ± SD OI was 37.4 ± 14 for the Surfactant+iNO group and 38.2 ± 16 for the controls. Infants receiving surfactant+iNO improved their oxygenation faster, resulting in lower OI at 24 h: 12.9 ± 9 vs 18.7 ± 11 of controls, p < 0.05; and a lower proportion developing OI > 40: 24%(12/50) vs 50%(25/50) of controls, p < 0.02. Fewer infants receiving surfactant+iNO presented the combined outcome of death or ECMO: 16%(8/50) compared to 36%(18/50) of controls, p < 0.05. CONCLUSIONS Early use of combined surfactant+iNO improves oxygenation preventing the progression to severe HRF. This may reduce mortality and ECMO need. TRIAL REGISTRATION NUMBER ISRCTN13727958.
Collapse
Affiliation(s)
- Alvaro González
- Department of Neonatology, Division of Pediatrics, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Aldo Bancalari
- Hospital Guillermo Grant Benavente and Department of Pediatrics, Faculty of Medicine, Universidad de Concepción, Concepción, Chile
| | | | - Matías Luco
- Department of Neonatology, Division of Pediatrics, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | - Héctor Pérez
- Department of Neonatology, Division of Pediatrics, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.,Hospital Sótero del Río, Santiago, Chile
| | - Javier Kattan
- Department of Neonatology, Division of Pediatrics, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| |
Collapse
|
56
|
Breinig S, Dicky O, Ehlinger V, Dulac Y, Marcoux MO, Arnaud C. Echocardiographic Parameters Predictive of Poor Outcome in Persistent Pulmonary Hypertension of the Newborn (PPHN): Preliminary Results. Pediatr Cardiol 2021; 42:1848-1853. [PMID: 34331558 PMCID: PMC8324438 DOI: 10.1007/s00246-021-02677-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 06/30/2021] [Indexed: 12/01/2022]
Abstract
The aim is to conduct a pilot study to prospectively describe echocardiographic parameters in neonates with pulmonary hypertension (PH) managed according to current recommendations and to identify those parameters that could predict worsening of short-term outcomes. All neonates less than 28 days old with a diagnosis of PH were prospectively enrolled in a tertiary care center for 1 year. Two echocardiograms were performed by a trained neonatologist. The first echocardiogram was performed at the time of diagnosis, whereas the second was performed just after basic therapeutic optimization. The cohort included 27 neonates. Mean gestational age at birth was 36.1 weeks gestational age (WGA) (SD: 4) and mean birth weight was 2658 g (SD: 907). Six neonates (22%) died before day 28, with a median age at death of 48 h (IQR [33; 89]). Although the first echocardiogram showed no difference, the second highlighted a strong link between the persistence of right-to left-shunt and death (p = 0.002). We showed a link between right-to-left shunt and a poor outcome (death or morbidity) after therapeutic optimization among premature and full-term neonates suffering from PH. We recommend repeating echocardiography after basic therapeutic optimization and for prognostic purposes, taking into account only the second examination. Larger cohorts are needed to confirm these results.
Collapse
Affiliation(s)
- Sophie Breinig
- Neonatal and Pediatric Intensive Care Unit, Children's Hospital, 330 Avenue de Grande-Bretagne, Toulouse Cedex 9, France. .,INSERM, UMR 1027, SPHERE Team, Hôpital Paule de Viguier, 330 Avenue de Grande-Bretagne, TSA 70034, Toulouse, France.
| | - Odile Dicky
- grid.414260.50000 0004 0638 3516INSERM, UMR 1027, SPHERE Team, Hôpital Paule de Viguier, 330 Avenue de Grande-Bretagne, TSA 70034, Toulouse, France ,Neonatal Intensive Care Unit, Children’s Hospital, 330 Avenue de Grande-Bretagne, Toulouse Cedex 9, France
| | - Virginie Ehlinger
- grid.414260.50000 0004 0638 3516INSERM, UMR 1027, SPHERE Team, Hôpital Paule de Viguier, 330 Avenue de Grande-Bretagne, TSA 70034, Toulouse, France
| | - Yves Dulac
- Pediatric Cardiology, Children’s Hospital, 330 Avenue de Grande-Bretagne, Toulouse Cedex 9, France
| | - Marie-Odile Marcoux
- Neonatal and Pediatric Intensive Care Unit, Children’s Hospital, 330 Avenue de Grande-Bretagne, Toulouse Cedex 9, France
| | - Catherine Arnaud
- grid.414260.50000 0004 0638 3516INSERM, UMR 1027, SPHERE Team, Hôpital Paule de Viguier, 330 Avenue de Grande-Bretagne, TSA 70034, Toulouse, France ,grid.411175.70000 0001 1457 2980Clinical Epidemiology Unit, University Hospital Toulouse, 37 Allées Jules Guesde, 31000 Toulouse, France
| |
Collapse
|
57
|
Mat Bah MN, Tan RYH, Razak H, Sapian MH, Abdullah N, Alias EY. Survival and associated risk factors for mortality among infants with persistent pulmonary hypertension of the newborn in Malaysia. J Perinatol 2021; 41:786-793. [PMID: 33589728 PMCID: PMC7883964 DOI: 10.1038/s41372-021-00962-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 11/27/2020] [Accepted: 01/22/2021] [Indexed: 11/16/2022]
Abstract
OBJECTIVE This study aims to determine the immediate outcome of persistent pulmonary hypertension of the newborn (PPHN) and risk factors for mortality in the era of inhaled nitric oxide (iNO). STUDY DESIGN This observational cross-sectional study includes 195 confirmed PPHN with a gestational age of ≥34 weeks without congenital heart disease. Multivariable logistic regression was used to identify risk factors for mortality. RESULTS The mortality rate was 16.4%, with the highest mortality with pulmonary hypoplasia. Of 195, 65% received iNO; 18% were iNO non-responders with the majority having pulmonary hypoplasia. Independent risk factors for mortality were the presence of reversal of flow at the descending aorta, pulmonary hypoplasia, APGAR scores ≤ 5 at 5 min, and idiopathic PPHN with an adjusted odds ratio of 15.9, 7.5, 6.7, and 6.4, respectively. CONCLUSIONS Despite the usage of iNO, mortality due to PPHN remains high and is related to etiology and cardiac function.
Collapse
Affiliation(s)
- Mohd Nizam Mat Bah
- Department of Pediatrics, Hospital Sultanah Aminah, Ministry of Health, Johor Bahru, Malaysia.
| | - Racine Yuh Hwa Tan
- grid.413461.50000 0004 0621 7083Department of Pediatrics, Hospital Sultanah Aminah, Ministry of Health, Johor Bahru, Malaysia
| | - Hasliza Razak
- grid.413461.50000 0004 0621 7083Department of Pediatrics, Hospital Sultanah Aminah, Ministry of Health, Johor Bahru, Malaysia
| | - Mohd Hanafi Sapian
- grid.413461.50000 0004 0621 7083Department of Pediatrics, Hospital Sultanah Aminah, Ministry of Health, Johor Bahru, Malaysia
| | - Nisah Abdullah
- grid.413461.50000 0004 0621 7083Department of Pediatrics, Hospital Sultanah Aminah, Ministry of Health, Johor Bahru, Malaysia
| | - Emieliyuza Yusnita Alias
- grid.413461.50000 0004 0621 7083Department of Pediatrics, Hospital Sultanah Aminah, Ministry of Health, Johor Bahru, Malaysia
| |
Collapse
|
58
|
Surf early to higher tides: surfactant therapy to optimize tidal volume, lung recruitment, and iNO response. J Perinatol 2021; 41:1-3. [PMID: 32792634 PMCID: PMC8220734 DOI: 10.1038/s41372-020-0764-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 06/25/2020] [Accepted: 07/22/2020] [Indexed: 11/08/2022]
Abstract
Inhaled nitric oxide is approved by FDA for the management of hypoxemic respiratory failure in term and near-term infants. However, approximately a third of patients treated with inhaled nitric oxide fail to have a sustained improvement in oxygenation. Recruitment of the lung with surfactant enables optimal delivery of nitric oxide to the alveolar space leading to effective pulmonary vasodilation.
Collapse
|
59
|
Zhang W, Wu YE, Yang XY, Shi J, van den Anker J, Song LL, Zhao W. Oral drugs used to treat persistent pulmonary hypertension of the newborn. Expert Rev Clin Pharmacol 2020; 13:1295-1308. [PMID: 33180564 DOI: 10.1080/17512433.2020.1850257] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Introduction:Persistent Pulmonary Hypertension of the Newborn (PPHN) is a life-threatening neonatal condition, mostly treated with inhaled nitric oxide (iNO), intravenous prostaglandins, oral bosentan, sildenafil and tadalafil. However, the utility of non-oral agents is limited in PPHN for their side effects and inconvenient deliveries. Therefore, oral agents such as bosentan, sildenafil and tadalafil are becoming appealing for their satisfactory efficacy, easy mode of administration and acceptable side effects. Areas covered: We conducted a comprehensive search on Pubmed, Scopus, Web of Sciences concerning the use of bosentan, sildenafil and tadalafil to treat PPHN and summarized their efficacy, safety and pharmacokinetics. Expert opinion: Current randomized controlled trials (RCTs) have demonstrated the favorable responses and tolerable side effects of bosentan and sildenafil. Nevertheless, those RCTs are small and only one study has described the pharmacokinetics of sildenafil in neonates. Accordingly, bosentan, sildenafil and tadalafil remain off-label in clinical use. More well-designed RCTs with large samples and long-term follow-up and pharmacometrics studies are needed to demonstrate the efficacy, safety and pharmacokinetics of bosentan, sildenafil and tadalafil in PPHN.
Collapse
Affiliation(s)
- Wei Zhang
- Department of Clinical Pharmacy, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University , Jinan, China
| | - Yue-E Wu
- Department of Clinical Pharmacy, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University , Jinan, China
| | - Xiao-Yan Yang
- Department of Pediatrics, West China Second University Hospital, Sichuan University , Chengdu, China
| | - Jing Shi
- Department of Pediatrics, West China Second University Hospital, Sichuan University , Chengdu, China
| | - John van den Anker
- Division of Clinical Pharmacology, Children's National Hospital , Washington, DC, USA.,Departments of Pediatrics, Pharmacology & Physiology, Genomics & Precision Medicine, The George Washington University School of Medicine and Health Sciences , Washington, DC, USA.,Department of Paediatric Pharmacology and Pharmacometrics, University of Basel Children's Hospital , Basel, Switzerland
| | - Lin-Lin Song
- Department of Clinical Pharmacy, Clinical Trial Center, Shandong Provincial Qianfoshan Hospital, the First Affiliated Hospital of Shandong First Medical University , Jinan, China
| | - Wei Zhao
- Department of Clinical Pharmacy, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University , Jinan, China.,Department of Clinical Pharmacy, Clinical Trial Center, Shandong Provincial Qianfoshan Hospital, the First Affiliated Hospital of Shandong First Medical University , Jinan, China
| |
Collapse
|
60
|
Smith AM, Levy PT, Franklin O, Molloy E, El-Khuffash A. Pulmonary hypertension and myocardial function in infants and children with Down syndrome. Arch Dis Child 2020; 105:1031-1034. [PMID: 32160992 DOI: 10.1136/archdischild-2019-318178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 02/12/2020] [Accepted: 02/17/2020] [Indexed: 12/15/2022]
Abstract
Down Syndrome (DS) is the most common chromosomal abnormality of live born babies. Individuals with DS are at increased risk of cardiopulmonary morbidities in the early neonatal period, infancy and childhood that manifest with elevated pulmonary arterial pressures and altered myocardial performance. Pulmonary hypertension (PH) during the early neonatal period remains under-recognised in this population. PH may occur with or without a congenital heart defect in children with DS and is more common than in the general population. Early detection and continued screening of PH throughout infancy and childhood for these at-risk children is crucial for prompt intervention and potential prevention of long-term sequelae on cardiac function. This review summarises the main physiological concepts behind the mechanisms of PH in children with DS and provides a summary of the current available literature on PH and its impact on myocardial performance.
Collapse
Affiliation(s)
| | - Philip T Levy
- Paediatrics, Boston Childrens Hospital, Boston, Massachusetts, USA.,Harvard Medical School, Boston, Massachusetts, USA
| | - Orla Franklin
- Paediatric Cardiology, Our Lady's Children's Hospital, Crumlin, Dublin, Ireland
| | - Eleanor Molloy
- Paediatrics and Child Health, Trinity College Dublin, Dublin, Ireland.,Neonatology, Coombe Women and Infants University Hospital, Dublin, Ireland
| | - Afif El-Khuffash
- Neonatology, Rotunda Hospital, Dublin, Ireland.,School of Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| |
Collapse
|
61
|
Taner A, Tekle S, Hothorn T, Adams M, Bassler D, Gerth‐Kahlert C. Higher incidence of retinopathy of prematurity in extremely preterm infants associated with improved survival rates. Acta Paediatr 2020; 109:2033-2039. [PMID: 31991001 DOI: 10.1111/apa.15197] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 01/23/2020] [Accepted: 01/24/2020] [Indexed: 11/30/2022]
Abstract
AIM This study assessed possible reasons for the increasing incidence of retinopathy of prematurity (ROP) since mid-2015 at our institution. METHODS Retrospective analysis of all preterm infants born July 2013 to June 2017 with a gestational age (GA) <29 completed weeks admitted to the neonatal intensive care unit at the University Hospital Zurich during the first 28 days of life. The primary outcome measures were severest ROP stage. Statistical analysis was performed using generalised additive models in R. RESULTS During the study period, survival increased in extremely preterm infants. Significant predictors for severest ROP stage were GA, days of mechanical ventilation and multiple gestation (P = .0322). A composite of severe comorbidities had no significant effect on severest ROP stage. GA was identified as the only significant risk factor the for severest ROP stage (P = .0045). CONCLUSION Increased survival rate of extremely preterm infants was associated with an increased incidence of ROP at our institution. Despite the increase, the incidence is still very low compared with other countries. No other additive factors were identified.
Collapse
Affiliation(s)
- Aylin Taner
- Department of Ophthalmology University Hospital Zurich and University of Zurich Zurich Switzerland
| | - Senait Tekle
- Institute for Epidemiology, Biostatistics and Prevention Department of Biostatistics University of Zurich Zurich Switzerland
| | - Torsten Hothorn
- Institute for Epidemiology, Biostatistics and Prevention Department of Biostatistics University of Zurich Zurich Switzerland
| | - Mark Adams
- Department of Neonatology University Hospital Zurich and University of Zurich Zurich Switzerland
| | - Dirk Bassler
- Department of Neonatology University Hospital Zurich and University of Zurich Zurich Switzerland
| | - Christina Gerth‐Kahlert
- Department of Ophthalmology University Hospital Zurich and University of Zurich Zurich Switzerland
| |
Collapse
|
62
|
Bidirectional Ductal Shunting and Preductal to Postductal Oxygenation Gradient in Persistent Pulmonary Hypertension of the Newborn. CHILDREN-BASEL 2020; 7:children7090137. [PMID: 32942726 PMCID: PMC7552678 DOI: 10.3390/children7090137] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 09/06/2020] [Accepted: 09/14/2020] [Indexed: 11/16/2022]
Abstract
BACKGROUND The aim was to evaluate the relationship between the direction of the patent ductus arteriosus (PDA) shunt and the pre- and postductal gradient for arterial blood gas (ABG) parameters in a lamb model of meconium aspiration syndrome (MAS) with persistent pulmonary hypertension of the newborn (PPHN). METHODS PPHN was induced by intermittent umbilical cord occlusion and the aspiration of meconium through the tracheal tube. After delivery, 13 lambs were ventilated and simultaneous 129 pairs of pre- and postductal ABG were drawn (right carotid and umbilical artery, respectively) while recording the PDA and the carotid and pulmonary blood flow. RESULTS Meconium aspiration resulted in hypoxemia. The bidirectional ductal shunt had a lower postductal partial arterial oxygen tension ([PaO2] with lower PaO2/FiO2 ratio-97 ± 36 vs. 130 ± 65 mmHg) and left pulmonary flow (81 ± 52 vs. 133 ± 82 mL/kg/min). However, 56% of the samples with a bidirectional shunt had a pre- and postductal saturation gradient of < 3%. CONCLUSIONS The presence of a bidirectional ductal shunt is associated with hypoxemia and low pulmonary blood flow. The absence of a pre- and postductal saturation difference is frequently observed with bidirectional right-to-left shunting through the PDA, and does not exclude a diagnosis of PPHN in this model.
Collapse
|
63
|
Ruoss JL, Rios DR, Levy PT. Updates on Management for Acute and Chronic Phenotypes of Neonatal Pulmonary Hypertension. Clin Perinatol 2020; 47:593-615. [PMID: 32713453 DOI: 10.1016/j.clp.2020.05.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Neonatal pulmonary hypertension is a heterogeneous disease in term and preterm neonates. It is characterized by persistent increase of pulmonary artery pressures after birth (acute) or an increase in pulmonary artery pressures after approximately 4 weeks of age (chronic); both phenotypes result in exposure of the right ventricle to sustained high afterload. In-depth clinical assessment plus echocardiographic measures evaluating pulmonary blood flow, pulmonary vascular resistance, pulmonary capillary wedge pressure, and myocardial contractility are needed to determine the cause and provide individualized targeted therapies. This article summarizes the causes, risk factors, hemodynamic assessment, and management of neonatal pulmonary hypertension.
Collapse
Affiliation(s)
- Jessica Lauren Ruoss
- Division of Neonatology, Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL, USA
| | - Danielle R Rios
- Division of Neonatology, Department of Pediatrics, University of Iowa, Iowa City, IA, USA
| | - Philip T Levy
- Division of Newborn Medicine, Boston Children's Hospital, Boston, MA, USA; Department of Pediatrics, Harvard Medical School, Boston, MA, USA.
| |
Collapse
|
64
|
Lakshminrusimha S, Kinsella JP, Krishnan US, Van Meurs K, Edwards EM, Bhatt DR, Chandrasekharan P, Oei JL, Manja V, Ramanathan R, Abman SH. Just Say No to iNO in Preterms-Really? J Pediatr 2020; 218:243-252. [PMID: 31810629 DOI: 10.1016/j.jpeds.2019.10.063] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/08/2019] [Accepted: 10/24/2019] [Indexed: 12/28/2022]
Affiliation(s)
| | - John P Kinsella
- Department of Pediatrics, University of Colorado, Aurora, CO
| | | | - Krisa Van Meurs
- Department of Pediatrics, Stanford University, Palo Alto, CA
| | | | | | | | - Ju-Lee Oei
- School of Women's and Children's Health, Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Veena Manja
- Department of Pediatrics, University of California at Davis, Sacramento, CA
| | - Rangasamy Ramanathan
- Department of Pediatrics, LAC+USC Medical Center, Keck School of Medicine of USC, Los Angeles, CA
| | - Steven H Abman
- Department of Pediatrics, University of Colorado, Aurora, CO
| |
Collapse
|
65
|
Maternal Diabetes Mellitus and Persistent Pulmonary Hypertension of the Newborn: Accumulated Evidence From Observational Studies. Can J Diabetes 2020; 44:327-334.e3. [PMID: 31902718 DOI: 10.1016/j.jcjd.2019.10.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 10/08/2019] [Accepted: 10/08/2019] [Indexed: 01/12/2023]
Abstract
OBJECTIVES Maternal diabetes mellitus (including pre-existing and gestational diabetes mellitus) is linked with adverse infant outcomes. However, the question of whether maternal diabetes increases the risk of persistent pulmonary hypertension of the newborn (PPHN) is unclear. Herein, we conducted a systematic review and meta-analysis to summarize clinical evidence to determine the association between maternal diabetes mellitus and PPHN. METHODS In this systematic review and meta-analysis, we systematically searched PubMed, Embase, Cochrane Library, Web of Science and Google Scholar to identify relevant studies according to predefined criteria. Data from selected studies were extracted, and meta-analysis was performed using fixed effects modelling. RESULTS In all, we included 7 unique studies with aggregated data on 2 million individuals and >5,000 cases of PPHN. Maternal diabetes was significantly associated with a higher risk of PPHN (risk ratio [RR], 1.37; 95% confidence interval [CI], 1.23 to 1.51). Both case-control and cohort studies exhibited that the presence of maternal diabetes increased the risk of PPHN (case-control: RR, 1.91; 95% CI, 1.02 to 2.79; cohort: RR, 1.36; 95% CI, 1.22 to 1.50). By omitting 1 study at a time, sensitivity analysis made sure that no individual study was entirely responsible for the combined results. CONCLUSIONS Maternal diabetes was associated with increased risk of PPHN. For babies with refractory hypoxemia, with mothers with diabetes, PPHN should be taken into consideration in clinical practice.
Collapse
|
66
|
Martinho S, Adão R, Leite-Moreira AF, Brás-Silva C. Persistent Pulmonary Hypertension of the Newborn: Pathophysiological Mechanisms and Novel Therapeutic Approaches. Front Pediatr 2020; 8:342. [PMID: 32850518 PMCID: PMC7396717 DOI: 10.3389/fped.2020.00342] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 05/26/2020] [Indexed: 12/13/2022] Open
Abstract
Persistent pulmonary hypertension of the newborn (PPHN) is one of the main causes of neonatal morbidity and mortality. It is characterized by sustained elevation of pulmonary vascular resistance (PVR), preventing an increase in pulmonary blood flow after birth. The affected neonates fail to establish blood oxygenation, precipitating severe respiratory distress, hypoxemia, and eventually death. Inhaled nitric oxide (iNO), the only approved pulmonary vasodilator for PPHN, constitutes, alongside supportive therapy, the basis of its treatment. However, nearly 40% of infants are iNO resistant. The cornerstones of increased PVR in PPHN are pulmonary vasoconstriction and vascular remodeling. A better understanding of PPHN pathophysiology may enlighten targeted and more effective therapies. Sildenafil, prostaglandins, milrinone, and bosentan, acting as vasodilators, besides glucocorticoids, playing a role on reducing inflammation, have all shown potential beneficial effects on newborns with PPHN. Furthermore, experimental evidence in PPHN animal models supports prospective use of emergent therapies, such as soluble guanylyl cyclase (sGC) activators/stimulators, l-citrulline, Rho-kinase inhibitors, peroxisome proliferator-activated receptor-γ (PPAR-γ) agonists, recombinant superoxide dismutase (rhSOD), tetrahydrobiopterin (BH4) analogs, ω-3 long-chain polyunsaturated fatty acids (LC-PUFAs), 5-HT2A receptor antagonists, and recombinant human vascular endothelial growth factor (rhVEGF). This review focuses on current knowledge on alternative and novel pathways involved in PPHN pathogenesis, as well as recent progress regarding experimental and clinical evidence on potential therapeutic approaches for PPHN.
Collapse
Affiliation(s)
- Sofia Martinho
- Department of Surgery and Physiology, Cardiovascular Research and Development Center-UnIC, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Rui Adão
- Department of Surgery and Physiology, Cardiovascular Research and Development Center-UnIC, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Adelino F Leite-Moreira
- Department of Surgery and Physiology, Cardiovascular Research and Development Center-UnIC, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Carmen Brás-Silva
- Department of Surgery and Physiology, Cardiovascular Research and Development Center-UnIC, Faculty of Medicine, University of Porto, Porto, Portugal.,Faculty of Nutrition and Food Sciences, University of Porto, Porto, Portugal
| |
Collapse
|
67
|
Mohammad Nijres B, Bokowski J, Mubayed L, Jafri SH, Davis AT, Abdulla RI. Utility of Pulmonary Artery Acceleration Time to Estimate Systolic Pulmonary Artery Pressure in Neonates and Young Infants. Pediatr Cardiol 2020; 41:265-271. [PMID: 31707489 PMCID: PMC7223795 DOI: 10.1007/s00246-019-02251-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 11/02/2019] [Indexed: 02/08/2023]
Abstract
Transthoracic echocardiogram (TTE) is commonly used to screen for pulmonary hypertension (PHTN) in neonates and young infants. However, in the absence of sufficient tricuspid regurgitation (TR), a ventricular septal defect (VSD), or a patent ductus arteriosus (PDA), the estimation of systolic pulmonary artery pressure (SPAP) becomes challenging. Pulmonary artery acceleration time (PAAT) is an alternate parameter that is easy to obtain in almost all patients and does not require the presence of tricuspid valvar regurgitation or an anatomical cardiac defect. We sought to examine the correlation of PAAT with estimated SPAP by TTE and create an equation to estimate the SPAP using PAAT. We performed a retrospective review of TTEs performed on neonates and young infants (4 months of age or younger) at our institution between April 2017 and December 2018, along with the corresponding medical records. We included TTEs that provided estimation for SPAP and at least one PAAT measurement. During the study period, 138 TTEs performed on 82 patients met the inclusion criteria. Strong correlation was delineated between PAAT and SPAP estimated by the maximum velocity of tricuspid valve regurgitation Doppler, correlation coefficient (r) = - 0.83. Moderate correlation was detected between PAAT and SPAP estimated by PDA Doppler, r = - 0.66. Utilizing the following equation "SPAP = 82.6 - 0.58 × PAAT + RA mean pressure", PAAT can be used to estimate SPAP in neonates and young infants. PAAT can be used as an alternative to TR jet to assess SPAP when the latter is absent or insufficient. Further studies are needed to verify the accuracy of this equation.
Collapse
Affiliation(s)
- Bassel Mohammad Nijres
- Section of Pediatric Cardiology, Department of Pediatrics, Rush University Medical Center, 1653 W. Congress Parkway, Chicago, IL, 60612, USA. .,Division of Pediatric Cardiology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, 6651 Main Street, Legacy Tower (MC E 1920), Houston, TX, USA.
| | - John Bokowski
- grid.240684.c0000 0001 0705 3621Section of Pediatric Cardiology, Department of Pediatrics, Rush University Medical Center, 1653 W. Congress Parkway, Chicago, IL 60612 USA
| | - Lamya Mubayed
- grid.240684.c0000 0001 0705 3621Section of Pediatric Cardiology, Department of Pediatrics, Rush University Medical Center, 1653 W. Congress Parkway, Chicago, IL 60612 USA
| | - Sabih H. Jafri
- grid.240684.c0000 0001 0705 3621Section of Pediatric Cardiology, Department of Pediatrics, Rush University Medical Center, 1653 W. Congress Parkway, Chicago, IL 60612 USA ,grid.413561.40000 0000 9881 9161Department of Internal Medicine, University of Cincinnati Medical Center, Cincinnati, OH 45219 USA
| | - Alan T. Davis
- grid.430538.90000 0004 0450 5903Spectrum Health OME Scholarly Activity Support, 945 Ottawa Ave. NW, Grand Rapids, MI 49503 USA
| | - Ra-id Abdulla
- grid.240684.c0000 0001 0705 3621Section of Pediatric Cardiology, Department of Pediatrics, Rush University Medical Center, 1653 W. Congress Parkway, Chicago, IL 60612 USA ,grid.413808.60000 0004 0388 2248Section of Pediatric Cardiology, Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital, Chicago, IL 60611 USA
| |
Collapse
|
68
|
Pal S, Sardar S, Mishra R. A Retrospective study on the profile of persistent pulmonary hypertension of newborn in a tertiary care unit of Eastern India. J Clin Neonatol 2020. [DOI: 10.4103/jcn.jcn_68_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
69
|
Galambos C, Mullen MP, Shieh JT, Schwerk N, Kielt MJ, Ullmann N, Boldrini R, Stucin-Gantar I, Haass C, Bansal M, Agrawal PB, Johnson J, Peca D, Surace C, Cutrera R, Pauciulo MW, Nichols WC, Griese M, Ivy D, Abman SH, Austin ED, Danhaive O. Phenotype characterisation of TBX4 mutation and deletion carriers with neonatal and paediatric pulmonary hypertension. Eur Respir J 2019; 54:13993003.01965-2018. [PMID: 31151956 DOI: 10.1183/13993003.01965-2018] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 04/19/2019] [Indexed: 11/05/2022]
Abstract
Rare variants in the T-box transcription factor 4 gene (TBX4) have recently been recognised as an emerging cause of paediatric pulmonary hypertension (PH). Their pathophysiology and contribution to persistent pulmonary hypertension in neonates (PPHN) are unknown. We sought to define the spectrum of clinical manifestations and histopathology associated with TBX4 variants in neonates and children with PH.We assessed clinical data and lung tissue in 19 children with PH, including PPHN, carrying TBX4 rare variants identified by next-generation sequencing and copy number variation arrays.Variants included six 17q23 deletions encompassing the entire TBX4 locus and neighbouring genes, and 12 likely damaging mutations. 10 infants presented with neonatal hypoxic respiratory failure and PPHN, and were subsequently discharged home. PH was diagnosed later in infancy or childhood. Three children died and two required lung transplantation. Associated anomalies included patent ductus arteriosus, septal defects, foot anomalies and developmental disability, the latter with a higher prevalence in deletion carriers. Histology in seven infants showed abnormal distal lung development and pulmonary hypertensive remodelling.TBX4 mutations and 17q23 deletions underlie a new form of developmental lung disease manifesting with severe, often biphasic PH at birth and/or later in infancy and childhood, often associated with skeletal anomalies, cardiac defects, neurodevelopmental disability and other anomalies.
Collapse
Affiliation(s)
- Csaba Galambos
- Dept of Pathology and Laboratory Services, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO, USA.,Contributed equally to this work as joint first authors
| | - Mary P Mullen
- Dept of Cardiology, Boston Children's Hospital and Pediatrics Harvard Medical School, Boston, MA, USA.,Contributed equally to this work as joint first authors
| | - Joseph T Shieh
- Institute for Human Genetics, Medical Genetics, University of California San Francisco, UCSF Benioff Children's Hospital, San Francisco, CA, USA
| | - Nicolaus Schwerk
- Clinic for Pediatric Pulmonology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
| | - Matthew J Kielt
- Division of Pediatric Pulmonology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Nicola Ullmann
- Division of Pediatric Pulmonology, Bambino Gesù Children's Hospital, Rome, Italy
| | - Renata Boldrini
- Dept of Laboratory Medicine, Bambino Gesù Children's Hospital, Rome, Italy
| | | | - Cristina Haass
- Division of Neonatology, San Pietro-Fatebenefratelli Hospital, Rome, Italy
| | - Manish Bansal
- Division of Pediatric Cardiology, University of Iowa Children's Hospital, Iowa City, IA, USA
| | - Pankaj B Agrawal
- Division of Newborn Medicine and Genetics and Genomics, Harvard School of Medicine, Boston Children's Hospital, Boston, MA, USA
| | - Joyce Johnson
- Dept of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Donatella Peca
- Dept of Laboratory Medicine, Bambino Gesù Children's Hospital, Rome, Italy
| | - Cecilia Surace
- Dept of Laboratory Medicine, Bambino Gesù Children's Hospital, Rome, Italy
| | - Renato Cutrera
- Division of Pediatric Pulmonology, Bambino Gesù Children's Hospital, Rome, Italy
| | - Michael W Pauciulo
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Dept of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - William C Nichols
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Dept of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Matthias Griese
- Division of Pediatric Pulmonology, Ludwig-Maximilians-University, Munich, Germany
| | - Dunbar Ivy
- Division of Pediatric Cardiology, Dept of Pediatrics, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO, USA
| | - Steven H Abman
- Division of Pulmonary Medicine, Dept of Pediatrics, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO, USA
| | - Eric D Austin
- Division of Pediatric Pulmonology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Olivier Danhaive
- Division of Neonatology, University of California San Francisco Benioff Children's Hospital, San Francisco, CA, USA .,Division of Neonatology, Catholic University of Louvain, Brussels, Belgium
| |
Collapse
|
70
|
Racial and Ethnic Differences in Pediatric Pulmonary Hypertension: An Analysis of the Pediatric Pulmonary Hypertension Network Registry. J Pediatr 2019; 211:63-71.e6. [PMID: 31176455 PMCID: PMC6776463 DOI: 10.1016/j.jpeds.2019.04.046] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 03/26/2019] [Accepted: 04/23/2019] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To investigate racial and ethnic differences in pulmonary hypertension subtypes and survival differences in a pediatric population. STUDY DESIGN This was a retrospective analysis of a cohort of patients with pulmonary hypertension (aged ≤18 years) enrolled in the Pediatric Pulmonary Hypertension Network registry between 2014 and 2018, comprising patients at eight Pediatric Centers throughout North America (n = 1417). RESULTS Among children diagnosed after the neonatal period, pulmonary arterial hypertension was more prevalent among Asians (OR, 1.83; 95% CI, 1.21-2.79; P = .0045), lung disease-associated pulmonary hypertension among blacks (OR, 2.09; 95% CI, 1.48-2.95; P < .0001), idiopathic pulmonary arterial hypertension among whites (OR, 1.58; 95% CI, 1.06-2.41; P = .0289), and pulmonary veno-occlusive disease among Hispanics (OR, 6.11; 95% CI, 1.34-31.3; P = .0184). Among neonates, persistent pulmonary hypertension of the newborn (OR, 4.07; 95% CI, 1.54-10.0; P = .0029) and bronchopulmonary dysplasia (OR, 8.11; 95% CI, 3.28-19.8; P < .0001) were more prevalent among blacks, and congenital diaphragmatic hernia was more prevalent among whites (OR, 2.29; 95% CI, 1.25-4.18; P = .0070). An increased mortality risk was observed among blacks (HR, 1.99; 95% CI, 1.03-3.84; P = .0396), driven primarily by the heightened mortality risk among those with lung disease-associated pulmonary hypertension (HR, 2.84; 95% CI, 1.15-7.04; P = .0241). CONCLUSIONS We found significant racial variability in the prevalence of pulmonary hypertension subtypes and survival outcomes among children with pulmonary hypertension. Given the substantial burden of this disease, further studies to validate phenotypic differences and to understand the underlying causes of survival disparities between racial and ethnic groups are warranted.
Collapse
|
71
|
Zahari N, Mat Bah MN, A Razak H, Thong MK. Ten-year trend in prevalence and outcome of Down syndrome with congenital heart disease in a middle-income country. Eur J Pediatr 2019; 178:1267-1274. [PMID: 31222391 DOI: 10.1007/s00431-019-03403-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/17/2019] [Accepted: 05/29/2019] [Indexed: 01/02/2023]
Abstract
Limited data are available on the survival of patients with Down syndrome and congenital heart disease (CHD) from middle-income countries. This retrospective cohort study was performed to determine the trends in the prevalence and survival of such patients born from January 2006 to December 2015 in Malaysia. Among 754 patients with Down syndrome, 414 (55%) had CHD, and no significant trend was observed during the 10 years. Of these 414 patients, 30% had lesions that closed spontaneously, 35% underwent surgery/intervention, 9% died before surgery/intervention, and 10% were treated with comfort care. The overall mortality rate was 23%, the median age at death was 7.6 months, and no significant changes occurred over time. The early and late post-surgery/intervention mortality rates were 0.7% and 9.0%, respectively. Most deaths were of non-cardiac causes. The overall 1-, 5-, and 10-year survival rates were 85.5%, 74.6%, and 72.9%, respectively. Patients with severe lesions, persistent pulmonary hypertension of the newborn, atrioventricular septal defect, and pulmonary hypertension had low survival at 1 year of age.Conclusion: The prevalence of CHD in patients with Down syndrome is similar between Malaysia and high-income countries. The lower survival rate is attributed to limited expertise and resources which limit timely surgery. What is Known: • The survival of patients with Down syndrome with congenital heart disease (CHD) has improved in high-income countries. However, little is known about the survival of patients with Down syndrome with CHD from middle-income countries. • In the Caucasian population, atrioventricular septal defect is the most common type of CHD associated with Down syndrome. What is New: • In middle-income countries, the prevalence of CHD is the same as in high-income countries, but with a lower survival rate. • In the Asian population, ventricular septal defect is the most common type of CHD in patients with Down syndrome.
Collapse
Affiliation(s)
- Norazah Zahari
- Department of Pediatrics, Faculty of Medicine, University of Malaya, Jalan Universiti, 50603, Kuala Lumpur, Malaysia.
| | - Mohd Nizam Mat Bah
- Department of Pediatrics, Hospital Sultanah Aminah Johor Bahru, Ministry of Health Malaysia, Johor Bahru, Johor, Malaysia
| | - Hasliza A Razak
- Department of Pediatrics, Hospital Sultanah Aminah Johor Bahru, Ministry of Health Malaysia, Johor Bahru, Johor, Malaysia
| | - Meow-Keong Thong
- Department of Pediatrics, Faculty of Medicine, University of Malaya, Jalan Universiti, 50603, Kuala Lumpur, Malaysia
| |
Collapse
|
72
|
Latham GJ, Yung D. Current understanding and perioperative management of pediatric pulmonary hypertension. Paediatr Anaesth 2019; 29:441-456. [PMID: 30414333 DOI: 10.1111/pan.13542] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/20/2018] [Accepted: 11/02/2018] [Indexed: 11/27/2022]
Abstract
Pediatric pulmonary hypertension is a complex disease with multiple, diverse etiologies affecting the premature neonate to the young adult. Pediatric pulmonary arterial hypertension, whether idiopathic or associated with congenital heart disease, is the most commonly discussed form of pediatric pulmonary hypertension, as it is progressive and lethal. However, neonatal forms of pulmonary hypertension are vastly more frequent, and while most cases are transient, the risk of morbidity and mortality in this group deserves recognition. Pulmonary hypertension due to left heart disease is another subset increasingly recognized as an important cause of pediatric pulmonary hypertension. One aspect of pediatric pulmonary hypertension is very clear: anesthetizing the child with pulmonary hypertension is associated with a significantly heightened risk of morbidity and mortality. It is therefore imperative that anesthesiologists who care for children with pulmonary hypertension have a firm understanding of the pathophysiology of the various forms of pediatric pulmonary hypertension, the impact of anesthesia and sedation in the setting of pulmonary hypertension, and anesthesiologists' role as perioperative experts from preoperative planning to postoperative disposition. This review summarizes the current understanding of pediatric pulmonary hypertension physiology, preoperative risk stratification, anesthetic risk, and intraoperative considerations relevant to the underlying pathophysiology of various forms of pediatric pulmonary hypertension.
Collapse
Affiliation(s)
- Gregory J Latham
- Department of Anesthesiology and Pain Medicine, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, Washington
| | - Delphine Yung
- Department of Pediatric Cardiology, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, Washington
| |
Collapse
|
73
|
Abstract
Intrauterine growth restriction (IUGR) is an important cause of fetal, perinatal and neonatal morbidity and mortality. IUGR occurs because of multiple reasons. Neonates with IUGR experience acute problems in the perinatal and early neonatal period that can be life-threatening. The unfavorable uterine environment causing growth restriction results in programming that predisposes IUGR infants to long-term health issues such as poor physical growth, metabolic syndrome, cardiovascular disease, neurodevelopmental impairment and endocrine abnormalities, warranting careful monitoring. It is imperative to strike the balance between achieving optimal catch-up to promote normal development, while preventing the onset of cardiovascular and metabolic disorders in the long-term.
Collapse
Affiliation(s)
- Kalpashri Kesavan
- Division of Neonatology & Developmental Biology, Department of Pediatrics, David Geffen School of Medicine at UCLA, UCLA Mattel Children's Hospital, 10833 Le Conte Avenue, B2-413 MDCC, Los Angeles, CA 90095, USA.
| | - Sherin U Devaskar
- Department of Pediatrics, David Geffen School of Medicine at UCLA, UCLA Mattel Children's Hospital, 10833 Le Conte Avenue, 22-412 MDCC, Los Angeles, CA 90095, USA
| |
Collapse
|
74
|
Amer R, Elsayed YN, Graham MR, Sikarwar AS, Hinton M, Dakshinamurti S. Effect of vasopressin on a porcine model of persistent pulmonary hypertension of the newborn. Pediatr Pulmonol 2019; 54:319-332. [PMID: 30644649 DOI: 10.1002/ppul.24248] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 12/08/2018] [Indexed: 01/16/2023]
Abstract
BACKGROUND Persistent pulmonary hypertension of the newborn (PPHN) is due to a failure of pulmonary vascular relaxation. Vasopressin, a systemic vasoconstrictor acting on smooth muscle AVPR1a receptors, is used in treatment of PPHN. We sought to determine acute effects of vasopressin infusion on pulmonary hemodynamics in a large animal model of hypoxic PPHN. METHODS PPHN was induced in 6 newborn piglets by 72 h normobaric hypoxia (FiO2 = 0.10); controls were 7 age-matched 3-day-old piglets. Animals were anesthetized and ventilated with central venous and arterial lines, and after stabilization, randomized using a crossover design to normoxic or hypoxic ventilation, then 30 min infusion of 0.0012 U/kg/min vasopressin, followed by 45 min vasopressin washout period. Echocardiographic parameters and oxygen consumption were measured before and after vasopressin. Relaxation to vasopressin was tested in isolated PPHN and control pulmonary arteries by isometric myography. Expression of AVPR1a receptor mRNA was quantified in arterial and myocardial tissues. RESULTS Vasopressin did not alleviate hypoxia-responsiveness of PPHN pulmonary circuit. There were no significant differences in pulmonary hypertension, cardiac function indices, or oxygenation indices after vasopressin infusion. Vasopressin did not dilate control or PPHN pulmonary arteries, and AVPR1 was minimally expressed. CONCLUSIONS Vasopressin does not have a direct pulmonary vasodilator effect in PPHN, within the timeframe studied.
Collapse
Affiliation(s)
- Reem Amer
- Section of Neonatology, Department of Pediatrics, University of Manitoba, Winnipeg, Canada
| | - Yasser N Elsayed
- Section of Neonatology, Department of Pediatrics, University of Manitoba, Winnipeg, Canada.,Biology of Breathing Group, Children's Hospital Research Institute of Manitoba, Winnipeg, Canada
| | - Marjory Ruth Graham
- Biology of Breathing Group, Children's Hospital Research Institute of Manitoba, Winnipeg, Canada.,Departments of Anesthesia, University of Manitoba, Winnipeg, Canada
| | - Anurag S Sikarwar
- Departments of Oral Biology, University of Manitoba, Winnipeg, Canada
| | - Martha Hinton
- Biology of Breathing Group, Children's Hospital Research Institute of Manitoba, Winnipeg, Canada
| | - Shyamala Dakshinamurti
- Section of Neonatology, Department of Pediatrics, University of Manitoba, Winnipeg, Canada.,Biology of Breathing Group, Children's Hospital Research Institute of Manitoba, Winnipeg, Canada.,Departments of Physiology, University of Manitoba, Winnipeg, Canada
| |
Collapse
|
75
|
Bhattacharya S, Sen S, Levy PT, Rios DR. Comprehensive Evaluation of Right Heart Performance and Pulmonary Hemodynamics in Neonatal Pulmonary Hypertension : Evaluation of cardiopulmonary performance in neonatal pulmonary hypertension. CURRENT TREATMENT OPTIONS IN CARDIOVASCULAR MEDICINE 2019; 21:10. [PMID: 30767138 DOI: 10.1007/s11936-019-0713-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW Pulmonary hypertension is characterized by an elevation of pulmonary artery pressures and prolonged exposure of the right ventricle to high afterload that collectively contribute to morbidity and mortality in both the term and preterm infants. This review summarizes the pathogenesis, etiologies, and hemodynamic profiles of the conditions that result in pulmonary hypertension in neonates. We explore the application of echocardiographic techniques for the assessment of right ventricular performance and pulmonary hemodynamics that enhance and guide the diagnosis and management strategies in neonates. RECENT FINDINGS Clinical assessments based on the determinants of mean pulmonary artery pressures (pulmonary vascular resistance, pulmonary blood flow, and pulmonary capillary wedge pressure) provide a physiologic approach in determining the acute and chronic etiologies of pulmonary hypertension in neonates. In addition, advances in neonatal echocardiography now afford the capability to obtain quantitative information that often precedes the qualitative information acquired by conventional methods and also provide sensitive markers of right ventricle performance for prognostic information based on the determinants of mean pulmonary artery pressures. Neonatal pulmonary hypertension represents a physiologic spectrum that accounts for the variance in clinical presentation and response to therapies. Physiology-based approaches to etiological identification, coupled with the emerging echocardiographic methods for the assessment of pulmonary hypertension in neonates will likely help to identify cardiovascular compromise earlier, guide therapeutic intervention, monitor therapeutic effectiveness, and improve overall outcome.
Collapse
Affiliation(s)
- Soume Bhattacharya
- Division of Neonatology, Department of Paediatrics, Western University, London, ON, Canada
| | - Shawn Sen
- Divisions of Neonatology and Pediatric Cardiology, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Philip T Levy
- Division of Newborn Medicine, Boston Children's Hospital and Department of Pediatrics, Harvard Medical School, 300 Longwood Avenue, Hunnewell 436, Boston, MA, 02115, USA.
| | - Danielle R Rios
- Section of Neonatology, Department of Pediatrics, Texas Children's Hospital and Baylor College of Medicine, Houston, TX, USA
| |
Collapse
|
76
|
Pandya S, Baser O, Wan GJ, Lovelace B, Potenziano J, Pham AT, Huang X, Wang L. The Burden of Hypoxic Respiratory Failure in Preterm and Term/Near-term Infants in the United States 2011-2015. JOURNAL OF HEALTH ECONOMICS AND OUTCOMES RESEARCH 2019; 6:130-141. [PMID: 32685586 PMCID: PMC7299458 DOI: 10.36469/9682] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
OBJECTIVES This study quantified the burden of hypoxic respiratory failure (HRF)/persistent pulmonary hypertension of newborn (PPHN) in preterm and term/near-term infants (T/NTs) by examining health care resource utilization (HRU) and charges in the United States. METHODS Preterms and T/NTs (≤34 and >34 weeks of gestation, respectively) having HRF/PPHN, with/without meconium aspiration in inpatient setting from January 1, 2011-October 31, 2015 were identified from the Vizient database (first hospitalization=index hospitalization). Comorbidities, treatments, HRU, and charges during index hospitalization were evaluated among preterms and T/NTs with HRF/PPHN. Logistic regression was performed to evaluate mortality-related factors. RESULTS This retrospective study included 504 preterms and 414 T/NTs with HRF/PPHN. Preterms were more likely to have respiratory distress syndrome, neonatal jaundice, and anemia of prematurity than T/NTs. Preterms had significantly longer inpatient stays (54.1 vs 29.0 days), time in a neonatal intensive care unit (34.1 vs 17.5 days), time on ventilation (4.7 vs 2.2 days), and higher total hospitalization charges ($613 350 vs $422 558) (all P<0.001). Similar rates were observed for use of antibiotics (96.2% vs 95.4%), sildenafil (9.5% vs 8.2%), or inhaled nitric oxide (93.8% vs 94.2%). Preterms had a significantly higher likelihood of mortality than T/NTs (odds ratio: 3.6, 95% confidence interval: 2.3-5.0). CONCLUSIONS The findings of more severe comorbidities, higher HRU, hospitalization charges, and mortality in preterms than in T/NTs underscore the significant clinical and economic burden of HRF/PPHN among infants. The results show significant unmet medical need; further research is warranted to determine new treatments and real-world evidence for improved patient outcomes.
Collapse
Affiliation(s)
| | - Onur Baser
- Department of Internal Medicine, the University of Michigan, Ann Arbor, MI
| | | | | | | | - An T Pham
- School of Pharmacy, University of California San Francisco, San Francisco, CA
| | | | - Li Wang
- STATinMED Research, Plano, TX
| |
Collapse
|
77
|
Del Rey Hurtado de Mendoza B, Sánchez-de-Toledo J, Bobillo Perez S, Girona M, Balaguer Gargallo M, Rodríguez-Fanjul J. Lung Ultrasound to Assess the Etiology of Persistent Pulmonary Hypertension of the Newborn (LUPPHYN Study): A Pilot Study. Neonatology 2019; 116:140-146. [PMID: 31096216 DOI: 10.1159/000499047] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 02/18/2019] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Persistent pulmonary hypertension of the newborn (PPHN) is a neonatal syndrome associated with significant morbidity and mortality that is caused by the failure of postnatal drop in pulmonary vascular resistance. In extreme cases, patients may require extracorporeal membrane oxygenation therapy (ECMO). The aim of this study was to explore lung ultrasound (LUS) patterns in newborns with PPHN requiring ECMO. PATIENTS AND METHODS From January 2014 to January 2018, LUS was performed on patients with PPHN admitted for ECMO treatment. PPHN diagnosis was based on clinical and echocardiographic findings. LUS was performed before patients underwent ECMO cannulation. An underlying diagnosis was made taking into account the patient's complete medical history, excluding LUS information. A blinded physician, unaware of the patient's clinical condition, analyzed the stored ultrasound images. Results were then compared with chest x-ray (CXR) diagnoses. RESULTS Seventeen patients were recruited; 12 were male (70.6%). The median gestational age was 38.7 weeks, with 13 term newborns (76.5%). Twelve were cannulated for VA ECMO, with a median ECMO run of 111.2 h. Six patients (35%) survived. Patients with alveolar capillary dysplasia with misaligned pulmonary veins, fetal ductus arteriosus constriction, or sepsis had normal LUS patterns (A-lines with lung sliding). LUS showed a better sensitivity (88.9%) and specificity (85%) than CXR (55.6 and 77.5%, respectively) in identifying patients with nonparenchymal lung disease. CONCLUSIONS LUS can provide essential information to help diagnose the underlying cause of PPHN in an earlier and more effective way than CXR. LUS is suitable for routine utilization in the intensive care unit.
Collapse
Affiliation(s)
| | - Joan Sánchez-de-Toledo
- Cardiology Department, Hospital Sant Joan de Déu-Clínic, University of Barcelona, Barcelona, Spain.,Critical Care Medicine Department, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Sara Bobillo Perez
- Pediatric Intensive Care Unit, Institut Recerca Hospital Sant Joan de Déu, Hospital Sant Joan de Déu, Barcelona, Spain
| | - Mónica Girona
- Pediatric Service Transport, Servei Emergències Mèdiques (SEM), Hospital Sant Joan de Déu and University of Barcelona, Barcelona, Spain.,Pediatric Intensive Care Unit, Hospital Sant Joan de Déu-Clínic, University of Barcelona, Barcelona, Spain
| | - Mónica Balaguer Gargallo
- Pediatric Intensive Care Unit, Hospital Sant Joan de Déu-Clínic, University of Barcelona, Barcelona, Spain
| | - Javier Rodríguez-Fanjul
- Pediatric Service Transport, Servei Emergències Mèdiques (SEM), Hospital Sant Joan de Déu and University of Barcelona, Barcelona, Spain, .,Pediatric Intensive Care Unit, Pediatric Service, Hospital Universitari de Tarragona Joan XXIII, Tarragona, Spain,
| |
Collapse
|
78
|
Nakwan N, Jain S, Kumar K, Hosono S, Hammoud M, Elsayed YY, Ariff S, Hasan B, Khowaja W, Poon WB. An Asian multicenter retrospective study on persistent pulmonary hypertension of the newborn: incidence, etiology, diagnosis, treatment and outcome. J Matern Fetal Neonatal Med 2018; 33:2032-2037. [PMID: 30318951 DOI: 10.1080/14767058.2018.1536740] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Objectives: To explore the incidence, etiologies, diagnostic methods, treatment options and outcomes in neonates with persistent pulmonary hypertension of the newborn (PPHN) and to identify mortality risk factors in a study from six Asian countries.Methods: A retrospective chart review of patients with documented PPHN from seven centers in six Asian countries (Japan, Kuwait, India, Pakistan, Singapore, and Thailand) between 1 January, 2014 and 31 December, 2016, was performed.Results: A total of 369 PPHN infants were identified. The incidence of PPHN ranged from 1.2 to 4.6 per 1000 live births. The all-cause mortality rate was 20.6% (76 of 369). Meconium aspiration syndrome was the primary cause of PPHN (24.1%). In most cases (84.8%) echocardiography was used to establish the diagnosis of PPHN. Sildenafil was the most commonly used pulmonary vasodilator (51.2%). Multivariate multiple regression analysis indicated gestational age <34 weeks (adjusted odds ratio (OR) = 3.27; 95% CI 1.56-6.74), congenital diaphragmatic hernia (CDH)/lung hypoplasia (LH) (adjusted OR = 6.13 (95% CI 2.28-16.42)), treatment with high frequency oscillation ventilation (HFOV) with or without inhaled nitric oxide (iNO) (adjusted OR = 3.11 (95% CI 1.52-6.34)), and inotropic agents (adjusted OR = 9.43 (95% CI 2.71-32.83)) were independently associated with increased risk of death.Conclusions: The incidence of PPHN in the current study was higher than in western settings. Birth weight, gestational age, CDH/LH, HFOV/iNO, and inotropic agents were significant mortality risk factors.
Collapse
Affiliation(s)
- Narongsak Nakwan
- Department of Pediatrics, Hat Yai Medical Education Center, Hat Yai Hospital, Songkhla, Thailand
| | - Suksham Jain
- Department of Pediatrics, Govt. Medical College and Hospital, Chandigarh, India
| | - Kishore Kumar
- Department of Pediatrics, Cloudnine Hospital, Bangalore, India
| | - Shigeharu Hosono
- Division of Neonatology, Department of Perinatal and Neonatal Medicine, Jichi Medical University, Saitama, Japan.,Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo, Japan
| | - Majeda Hammoud
- Department of Pediatrics and Neonatology, Faculty of Medicine, Kuwait University and Al-Sabah Maternity Hospital, Kuwait
| | - Yasser Yahia Elsayed
- Department of Pediatrics and Neonatology, Faculty of Medicine, Kuwait University and Al-Sabah Maternity Hospital, Kuwait
| | - Shabina Ariff
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Babar Hasan
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Waqar Khowaja
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Woei Bing Poon
- Department of Neonatal and Developmental Medicine, Singapore General Hospital, Singapore
| |
Collapse
|
79
|
Collura CA, Mara KC, Weaver AL, Clark RH, Carey WA. Outcomes of early inhaled nitric oxide use in premature African American neonates. J Perinatol 2018; 38:1657-1665. [PMID: 30275545 DOI: 10.1038/s41372-018-0232-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 07/02/2018] [Accepted: 08/15/2018] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Meta-analysis of individual-patient clinical trial data suggests that inhaled nitric oxide (iNO) improves respiratory outcomes in premature African American neonates. We hypothesized that early iNO therapy would be associated with lower mortality and less chronic lung disease (CLD) in extremely premature African American neonates. STUDY DESIGN We conducted a retrospective cohort study of propensity score- and race-matched neonates 22-29 weeks gestation who were mechanically ventilated for treatment of respiratory distress and associated pulmonary hypertension (RDS + PPHN). We evaluated the association of iNO within 7 days of life with in-hospital mortality and CLD, using Cox proportional hazards regression and logistic regression, respectively. RESULT Among 178 matched pairs of African American patients, iNO was not associated with lower mortality (HR = 0.94, 95% CI 0.69-1.30) or less CLD (OR = 0.94, 95% CI 0.47-1.87). CONCLUSIONS Early, off-label iNO use is not associated with improved outcomes in premature African American neonates with RDS + PPHN.
Collapse
Affiliation(s)
| | - Kristin C Mara
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - Amy L Weaver
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - Reese H Clark
- Center for Research, Education & Quality, Pediatrix Medical Group, Sunrise, FL, USA
| | - William A Carey
- Division of Neonatal Medicine, Mayo Clinic, Rochester, MN, USA.
| |
Collapse
|
80
|
Nakanishi H, Suenaga H, Uchiyama A, Kusuda S. Persistent pulmonary hypertension of the newborn in extremely preterm infants: a Japanese cohort study. Arch Dis Child Fetal Neonatal Ed 2018; 103:F554-F561. [PMID: 29298856 DOI: 10.1136/archdischild-2017-313778] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 11/14/2017] [Accepted: 11/19/2017] [Indexed: 12/19/2022]
Abstract
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. MAIN OUTCOME MEASURES Demographic characteristics, morbidity, interventions and mortality were compared for infants with and without PPHN. Multivariable logistic analysis was performed to evaluate the impact of PPHN on long-term neurodevelopmental outcomes (the prevalence rate of cerebral palsy, need for home oxygen therapy, and visual, hearing and cognitive impairment) at 3 years of age. RESULTS The prevalence of PPHN among the 12 954 extremely preterm infants enrolled was 8.1% (95% CI 7.7% to 8.6%), with the trend increasing annually, and a higher proportion as GA decreased: 18.5% (range, 15.2% to 22.4%) for infants born at 22 weeks compared with 4.4% (range, 3.8% to 5.2%) for those born at 27 weeks. Clinical chorioamnionitis and premature rupture of membranes were associated with PPHN. On multivariate analysis of the data from 5923 infants followed up for 3 years, PPHN was a significant independent risk factor for visual impairment (adjusted OR, 1.42, 95% CI 1.03 to 1.97). CONCLUSIONS The prevalence of PPHN in extremely preterm infants has been increasing over the past decade in Japan. Clinicians should be aware of visual impairments as a neurodevelopmental abnormality among infants with PPHN.
Collapse
Affiliation(s)
- Hidehiko Nakanishi
- Maternal and Perinatal Center, Tokyo Women's Medical University, Shinjuku-ku, Japan
| | - Hideyo Suenaga
- Maternal and Perinatal Center, Tokyo Women's Medical University, Shinjuku-ku, Japan
| | - Atsushi Uchiyama
- Maternal and Perinatal Center, Tokyo Women's Medical University, Shinjuku-ku, Japan
| | - Satoshi Kusuda
- Maternal and Perinatal Center, Tokyo Women's Medical University, Shinjuku-ku, Japan
| | | |
Collapse
|
81
|
van Nisselrooij AEL, Rozendaal L, Linskens IH, Clur SA, Hruda J, Pajkrt E, van Velzen CL, Blom NA, Haak MC. Postnatal outcome of fetal isolated ventricular size disproportion in the absence of aortic coarctation. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2018; 52:593-598. [PMID: 28598570 DOI: 10.1002/uog.17543] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 05/02/2017] [Accepted: 05/25/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE Cardiac ventricular size disproportion is a marker for aortic coarctation (CoA) in fetal life, but approximately 50% of fetuses do not have CoA after birth. The aim of this study was to evaluate the postnatal outcome of cases with fetal ventricular size disproportion in the absence of CoA after birth. METHODS All cases with fetal isolated ventricular size disproportion diagnosed between 2002 and 2015 were extracted from a prenatal congenital heart defects regional registry. Cases were stratified according to presence or absence (non-CoA) of aortic arch anomalies after birth. Postnatal outcome of non-CoA cases was evaluated by assessing the presence of cardiac and other congenital malformations, genetic syndromes and other morbidity after birth. Non-CoA cases were further classified according to whether they had cardiovascular pathology requiring medication or intervention. RESULTS Seventy-seven cases with fetal ventricular size disproportion were identified, of which 46 (60%) did not have CoA after birth. Of these, 35 did not require cardiovascular intervention or medication, whereas 11 did. Of the 46 non-CoA cases, six presented with clinical pulmonary hypertension requiring treatment after birth, cardiac defects were present in 24 cases and syndromic features were seen in four. Overall, 43% of all non-CoA children were still under surveillance at the end of the study period. CONCLUSIONS The postnatal course of cases with fetal ventricular size disproportion is complicated by prenatally undetected congenital defects (46%) and pulmonary or transition problems (35%) in a significant number of cases that do not develop CoA. Proper monitoring of these cases is therefore warranted and it is advisable to incorporate the risks for additional morbidity and neonatal complications in prenatal counseling. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.
Collapse
Affiliation(s)
- A E L van Nisselrooij
- Department of Obstetrics and Fetal Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - L Rozendaal
- Department of Pediatric Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - I H Linskens
- Department of Obstetrics and Gynecology, VU University Medical Center, Amsterdam, The Netherlands
| | - S A Clur
- Department of Pediatric Cardiology, Emma Children's Hospital, Academic Medical Center, Amsterdam, The Netherlands
| | - J Hruda
- Department of Pediatric Cardiology, VU University Medical Center, Amsterdam, The Netherlands
| | - E Pajkrt
- Department of Obstetrics and Gynecology, Academic Medical Center, Amsterdam, The Netherlands
| | - C L van Velzen
- Department of Obstetrics and Gynecology, VU University Medical Center, Amsterdam, The Netherlands
| | - N A Blom
- Department of Pediatric Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - M C Haak
- Department of Obstetrics and Fetal Medicine, Leiden University Medical Center, Leiden, The Netherlands
| |
Collapse
|
82
|
Thorsness KR, Watson C, LaRusso EM. Perinatal anxiety: approach to diagnosis and management in the obstetric setting. Am J Obstet Gynecol 2018; 219:326-345. [PMID: 29803818 DOI: 10.1016/j.ajog.2018.05.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 05/09/2018] [Accepted: 05/16/2018] [Indexed: 11/16/2022]
Abstract
Anxiety is common in women during the perinatal period, manifests with various symptoms and severity, and is associated with significant maternal morbidity and adverse obstetric and neonatal outcomes. Given the intimate relationship and frequency of contact, the obstetric provider is positioned optimally to create a therapeutic alliance and to treat perinatal anxiety. Time constraints, absence of randomized controlled trials, mixed quality of data, and concern for potential adverse reproductive outcomes all limit the clinician's ability to initiate informed risk-benefit discussions. Clear understanding of the role of the obstetric provider in the identification, stabilization, and initiation of medication and/or referral to psychotherapy for women with perinatal anxiety disorders is critical to maternal and neonatal wellbeing. Informed by our clinical practice as perinatal psychiatric providers, we have provided a concise summary of current research on the approach to the treatment of perinatal anxiety disorders in the obstetric setting that includes psychotherapy and supportive interventions, primary and adjuvant psychiatric medication, and general prescribing pearls. Medications that we examined include antidepressants, benzodiazepines, sedative-hypnotics, antihistamines, quetiapine, buspirone, propranolol, and melatonin. Further research into management of perinatal anxiety, particularly psychopharmacologic management, is warranted.
Collapse
|
83
|
Sikarwar AS, Hinton M, Santhosh KT, Dhanaraj P, Talabis M, Chelikani P, Dakshinamurti S. Hypoxia inhibits adenylyl cyclase catalytic activity in a porcine model of persistent pulmonary hypertension of the newborn. Am J Physiol Lung Cell Mol Physiol 2018; 315:L933-L944. [PMID: 30234376 DOI: 10.1152/ajplung.00130.2018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Persistent pulmonary hypertension of the newborn (PPHN) features hypoxemia, pulmonary vasoconstriction, and impaired cardiac inotropy. We previously reported low basal and stimulated cAMP in hypoxic pulmonary artery smooth muscle cells (PASMCs). We now examine pulmonary arterial adenylyl cyclase (AC) activity and regulation in hypoxic PPHN. PPHN was induced in newborn swine by normobaric hypoxia (fraction of inspired oxygen 0.10) for 72 h and compared with age-matched normoxic controls. We studied relaxation of pulmonary arterial (PA) rings to AC activator forskolin and cGMP activator sodium nitroprusside (SNP) by isometric myography, ATP content, phosphodiesterase activity, AC content, isoform expression, and catalytic activity in presence or absence of Gαs-coupled receptor agonists, forskolin, or transnitrosylating agents in human and neonatal porcine PASMCs and HEK293T stably expressing AC isoform 6, after 72 h hypoxia (10% O2) or normoxia (21% O2). Relaxation to forskolin and SNP were equally impaired in PPHN PA. AC-specific activity decreased in hypoxia. PASMC from PPHN swine had reduced AC activity despite exposure to normoxia in culture; transient hypoxia in vitro further decreased AC activity. Prostacyclin receptor ligand affinity decreased, but its association with Gαs increased in hypoxia. Total AC content was unchanged by hypoxia, but AC6 increased in hypoxic cells and PPHN pulmonary arteries. Impairment of AC6 activity in hypoxia was associated with nitrosylation. PPHN PA relaxation is impaired because of loss of AC activity. Hypoxic AC is inhibited because of S-nitrosylation; inhibition persists after removal from hypoxia. Downregulation of AC-mediated relaxation in hypoxic PA has implications for utility of Gαs-coupled receptor agonists in PPHN treatment.
Collapse
Affiliation(s)
- A S Sikarwar
- Biology of Breathing Group, Children's Hospital Research Institute of Manitoba , Winnipeg , Canada.,Department of Physiology, University of Manitoba , Winnipeg , Canada.,Department of Oral Biology, University of Manitoba , Winnipeg , Canada
| | - M Hinton
- Biology of Breathing Group, Children's Hospital Research Institute of Manitoba , Winnipeg , Canada
| | - K T Santhosh
- Biology of Breathing Group, Children's Hospital Research Institute of Manitoba , Winnipeg , Canada
| | - P Dhanaraj
- Biology of Breathing Group, Children's Hospital Research Institute of Manitoba , Winnipeg , Canada.,Department of Oral Biology, University of Manitoba , Winnipeg , Canada
| | - M Talabis
- Biology of Breathing Group, Children's Hospital Research Institute of Manitoba , Winnipeg , Canada
| | - P Chelikani
- Biology of Breathing Group, Children's Hospital Research Institute of Manitoba , Winnipeg , Canada.,Department of Oral Biology, University of Manitoba , Winnipeg , Canada
| | - S Dakshinamurti
- Biology of Breathing Group, Children's Hospital Research Institute of Manitoba , Winnipeg , Canada.,Department of Physiology, University of Manitoba , Winnipeg , Canada.,Department of Pediatrics, University of Manitoba , Winnipeg , Canada
| |
Collapse
|
84
|
Favorable course of previously undiagnosed Methylmalonic Aciduria with Homocystinuria (cblC type) presenting with pulmonary hypertension and aHUS in a young child: a case report. Ital J Pediatr 2018; 44:90. [PMID: 30103768 PMCID: PMC6205155 DOI: 10.1186/s13052-018-0530-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 08/01/2018] [Indexed: 02/08/2023] Open
Abstract
Background Cobalamin C (cblC) defect is the most common inborn error of Vitamin B12 metabolism often causing severe neurological, renal, gastrointestinal and hematological symptoms. Onset with pulmonary hypertension (PAH) and atypical hemolytic-uremic syndrome (aHUS) is rare. Case presentation We describe the case of a 2-years old child, previously in good health, admitted to the hospital with severe respiratory symptoms, rapid worsening of clinical conditions, O2 desaturation and palmo-plantar edema. The patient showed PAH and laboratory findings compatible with aHUS. cblC defect, an inborn error of metabolism, was identified as the cause of all the symptoms described (cardiac, respiratory and renal involvement). Results of neonatal screening for inborn errors of metabolism had been negative. Administration of IM OHCbl (intramuscular hydroxocobalamin), oral betaine and symptomatic treatment with diuretics and anti-hypertensive systemic and pulmonary drugs induced dramatic improvement of both cardiac and systemic symptoms. Conclusions In this case of cblC defect the metabolic treatment completely reverted symptoms of aHUS and PAH. The course was favorable, and the prognosis is what we foresee for the future.
Collapse
|
85
|
Lakshminrusimha S, Shankaran S, Laptook A, McDonald S, Keszler M, Van Meurs K, Guillet R, Chawla S, Sood BG, Bonifacio S, Das A, Higgins RD. Pulmonary Hypertension Associated with Hypoxic-Ischemic Encephalopathy-Antecedent Characteristics and Comorbidities. J Pediatr 2018; 196:45-51.e3. [PMID: 29502880 PMCID: PMC6052458 DOI: 10.1016/j.jpeds.2017.12.055] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 11/27/2017] [Accepted: 12/19/2017] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To determine the characteristics of term infants with persistent pulmonary hypertension of the newborn (PPHN) associated with moderate or severe hypoxic ischemic encephalopathy (HIE). METHODS We compared infants with and without PPHN enrolled in 2 randomized trials of therapeutic hypothermia: the induced hypothermia trial of cooling to 33.5°C for 72 hours vs normothermia, and the "usual-care" arm (33.5°C for 72 hours) of the optimizing cooling trial. RESULTS Among 303 infants with HIE from these 2 studies, 67 (22%) had PPHN and 236 (78%) did not. We compared infants with PPHN with those without PPHN. The proportion of patients treated with therapeutic hypothermia was similar in PPHN and no-PPHN groups (66% vs 65%). Medication use during resuscitation (58% vs 44%), acidosis after birth (pH: 7.0 ± 0.2 vs 7.1 ± 0.2), severe HIE (43% vs 28%), meconium aspiration syndrome (39% vs 7%), pulmonary hemorrhage (12% vs 3%), culture-positive sepsis (12% vs 3%), systemic hypotension (65% vs 28%), inhaled nitric oxide therapy (64% vs 3%), and extracorporeal membrane oxygenation (12% vs 0%) were more common in the PPHN group. Length of stay (26 ± 21 vs 16 ± 14 days) and mortality (27% vs 16%) were higher in the PPHN group. CONCLUSIONS PPHN is common among infants with moderate/severe HIE and is associated with severe encephalopathy, lung disease, sepsis, systemic hypotension, and increased mortality. The prevalence of PPHN was not different between those infants receiving therapeutic hypothermia at 33.5°C in these 2 trials (44/197 = 22%) compared with infants receiving normothermia in the induced hypothermia trial (23/106 = 22%).
Collapse
|
86
|
Martin T, Smith A, Breatnach CR, Kent E, Shanahan I, Boyle M, Levy PT, Franklin O, El-Khuffash A. Infants Born with Down Syndrome: Burden of Disease in the Early Neonatal Period. J Pediatr 2018; 193:21-26. [PMID: 29174996 DOI: 10.1016/j.jpeds.2017.09.046] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 07/28/2017] [Accepted: 09/19/2017] [Indexed: 01/01/2023]
Abstract
OBJECTIVE To evaluate the incidence of direct admission of infants with Down syndrome to the postnatal ward (well newborn nursery) vs the neonatal intensive care unit (NICU), and to describe the incidence of congenital heart disease (CHD) and pulmonary hypertension (PH). STUDY DESIGN This retrospective cohort study of Down syndrome used the maternal/infant database (2011-2016) at the Rotunda Hospital in Dublin, Ireland. Admission location, early neonatal morbidities, outcomes, and duration of stay were evaluated and regression analyses were conducted to identify risk factors associated with morbidity and mortality. RESULTS Of the 121 infants with Down syndrome, 54 (45%) were initially admitted to the postnatal ward, but 38 (70%) were later admitted to the NICU. Low oxygen saturation profile was the most common cause for the initial and subsequent admission to the NICU. Sixty-six percent of the infants (80/121) had CHD, 34% (41/121) had PH, and 6% died. Risk factors independently associated with primary NICU admission included antenatal diagnosis of Down syndrome, presence of CHD, PH, and the need for ventilation. CONCLUSIONS Infants with Down syndrome initially admitted to the postnatal ward have a high likelihood of requiring NICU admission. Overall, high rates of neonatal morbidity were noted, including rates of PH that were higher than previously reported. Proper screening of all infants with Down syndrome for CHD and PH is recommended to facilitate timely diagnoses and potentially shorten the duration of the hospital stay.
Collapse
Affiliation(s)
- Therese Martin
- Department of Neonatology, The Rotunda Hospital, Dublin, Ireland
| | - Aisling Smith
- Department of Neonatology, The Rotunda Hospital, Dublin, Ireland
| | - Colm R Breatnach
- Department of Neonatology, The Rotunda Hospital, Dublin, Ireland
| | - Etaoin Kent
- Department of Obstetrics and Gynecology, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Ita Shanahan
- Department of Obstetrics and Gynecology, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Michael Boyle
- Department of Neonatology, The Rotunda Hospital, Dublin, Ireland
| | - Phillip T Levy
- Department of Pediatrics, Washington University School of Medicine, St Louis, MO; Goryeb Children's Hospital, Atlantic Health System, Morristown, NJ
| | - Orla Franklin
- Department of Pediatric Cardiology, Our Lady's Children's Hospital, Dublin, Ireland
| | - Afif El-Khuffash
- Department of Neonatology, The Rotunda Hospital, Dublin, Ireland; School of Medicine (Department of Pediatrics), Royal College of Surgeons in Ireland, Dublin, Ireland.
| |
Collapse
|
87
|
Steurer MA, Oltman S, Baer RJ, Feuer S, Liang L, Paynter RA, Rand L, Ryckman KK, Keller RL, Pawlowski LLJ. Altered metabolites in newborns with persistent pulmonary hypertension. Pediatr Res 2018; 84:272-278. [PMID: 29895840 PMCID: PMC7691760 DOI: 10.1038/s41390-018-0023-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 03/06/2018] [Accepted: 04/03/2018] [Indexed: 11/09/2022]
Abstract
BACKGROUND There is an emerging evidence that pulmonary hypertension is associated with amino acid, carnitine, and thyroid hormone aberrations. We aimed to characterize metabolic profiles measured by the newborn screen (NBS) in infants with persistent pulmonary hypertension of the newborn (PPHN) METHODS: Nested case-control study from population-based database. Cases were infants with ICD-9 code for PPHN receiving mechanical ventilation. Controls receiving mechanical ventilation were matched 2:1 for gestational age, sex, birth weight, parenteral nutrition administration, and age at NBS collection. Infants were divided into derivation and validation datasets. A multivariable logistic regression model was derived from candidate metabolites, and the area under the receiver operator characteristic curve (AUROC) was generated from the validation dataset. RESULTS We identified 1076 cases and 2152 controls. Four metabolites remained in the final model. Ornithine (OR 0.32, CI 0.26-0.41), tyrosine (OR 0.48, CI 0.40-0.58), and TSH 0.50 (0.45-0.55) were associated with decreased odds of PPHN; phenylalanine was associated with increased odds of PPHN (OR 4.74, CI 3.25-6.90). The AUROC was 0.772 (CI 0.737-0.807). CONCLUSIONS In a large, population-based dataset, infants with PPHN have distinct, early metabolic profiles. These data provide insight into the pathophysiology of PPHN, identifying potential therapeutic targets and novel biomarkers to assess the response.
Collapse
Affiliation(s)
- Martina A. Steurer
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA,Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA,California Preterm Birth Initiative, University of California San Francisco, San Francisco, CA, USA
| | - Scott Oltman
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA
| | - Rebecca J. Baer
- California Preterm Birth Initiative, University of California San Francisco, San Francisco, CA, USA,Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Sky Feuer
- California Preterm Birth Initiative, University of California San Francisco, San Francisco, CA, USA
| | - Liang Liang
- Department of Genetics, Stanford University, Palo Alto, CA, USA
| | - Randi A. Paynter
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA,California Preterm Birth Initiative, University of California San Francisco, San Francisco, CA, USA
| | - Larry Rand
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco, San Francisco, CA, USA and
| | - Kelli K. Ryckman
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - Roberta L. Keller
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA
| | - Laura L. Jelliffe Pawlowski
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA,California Preterm Birth Initiative, University of California San Francisco, San Francisco, CA, USA
| |
Collapse
|
88
|
Anderson JG, Rogers EE, Baer RJ, Oltman SP, Paynter R, Partridge JC, Rand L, Jelliffe-Pawlowski LL, Steurer MA. Racial and Ethnic Disparities in Preterm Infant Mortality and Severe Morbidity: A Population-Based Study. Neonatology 2018; 113:44-54. [PMID: 29073624 DOI: 10.1159/000480536] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 08/22/2017] [Indexed: 11/19/2022]
Abstract
BACKGROUND Disparities exist in the rates of preterm birth and infant mortality across different racial/ethnic groups. However, only a few studies have examined the impact of race/ethnicity on the outcomes of premature infants. OBJECTIVE To report the rates of mortality and severe neonatal morbidity among multiple gestational age (GA) groups stratified by race/ethnicity. METHODS A retrospective cohort study utilizing linked birth certificate, hospital discharge, readmission, and death records up to 1 year of life. Live-born infants ≤36 weeks born in the period 2007-2012 were included. Maternal self-identified race/ethnicity, as recorded on the birth certificate, was used. ICD-9 diagnostic and procedure codes captured neonatal morbidities (intraventricular hemorrhage, retinopathy of prematurity, periventricular leukomalacia, bronchopulmonary dysplasia, and necrotizing enterocolitis). Multiple logistic regression was performed to evaluate the impact of race/ethnicity on mortality and morbidity, adjusting for GA, birth weight, sex, and multiple gestation. RESULTS Our cohort totaled 245,242 preterm infants; 26% were white, 46% Hispanic, 8% black, and 12% Asian. At 22-25 weeks, black infants were less likely to die than white infants (odds ratio [OR] 0.76; 95% confidence interval [CI] 0.62-0.94). However, black infants born at 32-34 weeks (OR 1.64; 95% CI 1.15-2.32) or 35-36 weeks (OR 1.57; 95% CI 1.00-2.24) were more likely to die. Hispanic infants born at 35-36 weeks were less likely to die than white infants (OR 0.66; 95% CI 0.50-0.87). Racial disparities at different GAs were also detected for severe morbidities. CONCLUSIONS The impact of race/ethnicity on mortality and severe morbidity varied across GA categories in preterm infants. Disparities persisted even after adjusting for important potential confounders.
Collapse
Affiliation(s)
- James G Anderson
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
89
|
Steurer MA, Baer RJ, Keller RL, Oltman S, Chambers CD, Norton ME, Peyvandi S, Rand L, Rajagopal S, Ryckman KK, Moon-Grady AJ, Jelliffe-Pawlowski LL. Gestational Age and Outcomes in Critical Congenital Heart Disease. Pediatrics 2017; 140:peds.2017-0999. [PMID: 28885171 DOI: 10.1542/peds.2017-0999] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/12/2017] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVES It is unknown how gestational age (GA) impacts neonatal morbidities in infants with critical congenital heart disease (CCHD). We aim to quantify GA-specific mortality and neonatal morbidity in infants with CCHD. METHODS Cohort study using a database linking birth certificate, infant hospital discharge, readmission, and death records, including infants 22 to 42 weeks' GA without chromosomal anomalies (2005-2012, 2 988 925 live births). The International Classification of Diseases, Ninth Revision diagnostic and procedure codes were used to define CCHD and neonatal morbidities (intraventricular hemorrhage, retinopathy, periventricular leukomalacia, chronic lung disease, necrotizing enterocolitis). Adjusted absolute risk differences (ARDs) with 95% confidence intervals (CIs) were calculated. RESULTS We identified 6903 out of 2 968 566 (0.23%) infants with CCHD. The incidence of CCHD was highest at 29 to 31 weeks' GA (0.9%) and lowest at 39 to 42 weeks (0.2%). Combined neonatal morbidity or mortality in infants with and without CCHD was 82.8% and 57.9% at <29 weeks and declined to 10.9% and 0.1% at 39 to 42 weeks' GA. In infants with CCHD, being born at 34 to 36 weeks was associated with a higher risk of death or morbidity than being born at 37 to 38 weeks (adjusted ARD 9.1%, 95% CI 5.5% to 12.7%), and being born at 37 to 38 weeks was associated with a higher risk of death or morbidity than 39 to 42 weeks (adjusted ARD 3.2%, 95% CI 1.6% to 4.9%). CONCLUSIONS Infants born with CCHD are at high risk of neonatal morbidity. Morbidity remains increased across all GA groups in comparison with infants born at 39 to 42 weeks. This substantial risk of neonatal morbidity is important to consider when caring for this patient population.
Collapse
Affiliation(s)
| | - Rebecca J Baer
- Department of Pediatrics, University of California, San Diego, La Jolla, California; and
| | | | | | - Christina D Chambers
- Department of Pediatrics, University of California, San Diego, La Jolla, California; and
| | - Mary E Norton
- Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, San Francisco, California
| | | | - Larry Rand
- Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, San Francisco, California
| | | | - Kelli K Ryckman
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa
| | | | | |
Collapse
|
90
|
Seth SA, Soraisham AS, Harabor A. Risk factors and outcomes of early pulmonary hypertension in preterm infants. J Matern Fetal Neonatal Med 2017; 31:3147-3152. [PMID: 28783986 DOI: 10.1080/14767058.2017.1365129] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
PURPOSE Data on early pulmonary arterial hypertension (PAH) in preterm infants is limited and outcomes are conflicting. Our objectives are to examine the risk factors and neonatal outcomes of early onset PAH (EOPAH) diagnosed in the first 2 weeks of age in preterm infants in a large perinatal center. METHODS We performed a case-control study to assess the risk factors and clinical outcomes of preterm infants with EOPAH. Preterm infants (<34 weeks) admitted to NICU between 2009 and 2013 with a diagnosis of PAH in the first 2 weeks of age were matched to two consecutive controls for gestational age, birth weight, and year of birth. We performed univariate and multivariate analyses. RESULTS Of 1798 eligible infants, 60 (3.3%) had EOPAH with 57/60 (95%) diagnosed in the first 7 d of age. Infants with early PAH had higher incidence of prolonged rupture of membrane (47% versus 29%), oligohydramnios (37% versus 16%) and received less antenatal steroids (78% versus 91%). Fifty-one infants received inhaled nitric oxide (iNO) and all responded well. The overall mortality rate was not significantly different between two groups (13.3% versus 8%). After adjusting for potential confounding variables, early PAH is associated with bronchopulmonary dysplasia (BPD) (aOR 3.06, 95% CI 1.43, 6.54) and BPD/death (aOR 2.65, 95% CI 1.25, 5.64) and severe intraventricular hemorrhage (aOR 3.08, 95% CI 1.28, 7.39). CONCLUSION Early onset pulmonary arterial hypertension in preterm is not uncommon and is associated with bronchopulmonary dysplasia and severe intraventricular hemorrhage. Inhaled nitric oxide was used to treat in majority of cases with good response and survival is high.
Collapse
Affiliation(s)
- Saad Ahmed Seth
- a Department of Pediatrics, Section of Neonatology, Cumming School of Medicine , Alberta Children's Hospital Research Institute, University of Calgary , Calgary , Alberta , Canada
| | - Amuchou Singh Soraisham
- a Department of Pediatrics, Section of Neonatology, Cumming School of Medicine , Alberta Children's Hospital Research Institute, University of Calgary , Calgary , Alberta , Canada
| | - Andrei Harabor
- a Department of Pediatrics, Section of Neonatology, Cumming School of Medicine , Alberta Children's Hospital Research Institute, University of Calgary , Calgary , Alberta , Canada
| |
Collapse
|
91
|
Mathew B, Lakshminrusimha S. Persistent Pulmonary Hypertension in the Newborn. CHILDREN-BASEL 2017; 4:children4080063. [PMID: 28788074 PMCID: PMC5575585 DOI: 10.3390/children4080063] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 07/18/2017] [Accepted: 07/25/2017] [Indexed: 11/16/2022]
Abstract
Persistent pulmonary hypertension of the newborn (PPHN) is a syndrome of failed circulatory adaptation at birth due to delay or impairment in the normal fall in pulmonary vascular resistance (PVR) that occurs following birth. The fetus is in a state of physiological pulmonary hypertension. In utero, the fetus receives oxygenated blood from the placenta through the umbilical vein. At birth, following initiation of respiration, there is a sudden precipitous fall in the PVR and an increase of systemic vascular resistance (SVR) due to the removal of the placenta from circulation. There is dramatic increase in pulmonary blood flow with a decrease in, and later reversal of shunts at the foramen ovale and ductus arteriosus. The failure of this normal physiological pulmonary transition leads to the syndrome of PPHN. PPHN presents with varying degrees of hypoxemic respiratory failure. Survival of infants with PPHN has significantly improved with the use of gentle ventilation, surfactant and inhaled nitric oxide (iNO). PPHN is associated with significant mortality and morbidity among survivors. Newer agents that target different enzymatic pathways in the vascular smooth muscle are in different stages of development and testing. Further research using these agents is likely to further reduce morbidity and mortality associated with PPHN.
Collapse
Affiliation(s)
- Bobby Mathew
- Department of Pediatrics, University at Buffalo, Buffalo, NY 14222, USA.
| | | |
Collapse
|
92
|
The Montreux definition of neonatal ARDS: biological and clinical background behind the description of a new entity. THE LANCET RESPIRATORY MEDICINE 2017; 5:657-666. [PMID: 28687343 DOI: 10.1016/s2213-2600(17)30214-x] [Citation(s) in RCA: 180] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 04/22/2017] [Accepted: 04/24/2017] [Indexed: 11/21/2022]
Abstract
Acute respiratory distress syndrome (ARDS) is undefined in neonates, despite the long-standing existing formal recognition of ARDS syndrome in later life. We describe the Neonatal ARDS Project: an international, collaborative, multicentre, and multidisciplinary project which aimed to produce an ARDS consensus definition for neonates that is applicable from the perinatal period. The definition was created through discussions between five expert members of the European Society for Paediatric and Neonatal Intensive Care; four experts of the European Society for Paediatric Research; two independent experts from the USA and two from Australia. This Position Paper provides the first consensus definition for neonatal ARDS (called the Montreux definition). We also provide expert consensus that mechanisms causing ARDS in adults and older children-namely complex surfactant dysfunction, lung tissue inflammation, loss of lung volume, increased shunt, and diffuse alveolar damage-are also present in several critical neonatal respiratory disorders.
Collapse
|
93
|
Ryu IK, Tang CL, Chu SY, Shim GH, Chey MJ. Comparison between Patients with Persistent Pulmonary Hypertension of Neonates Concomitant with Parenchymal Lung Disease and Idiopathic Persistent Pulmonary Hypertension of Neonates. NEONATAL MEDICINE 2017. [DOI: 10.5385/nm.2017.24.4.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Affiliation(s)
- In Kyung Ryu
- Department of Pediatrics, Inje University Sanggye Paik Hospital, Seoul, Korea
| | - Chih Lung Tang
- Department of Pediatrics, Inje University Sanggye Paik Hospital, Seoul, Korea
| | - Shou Yu Chu
- Department of Pediatrics, Inje University Sanggye Paik Hospital, Seoul, Korea
| | - Gyu Hong Shim
- Department of Pediatrics, Inje University Sanggye Paik Hospital, Seoul, Korea
| | - Myoung Jae Chey
- Department of Pediatrics, Inje University Sanggye Paik Hospital, Seoul, Korea
| |
Collapse
|
94
|
An SH, Yi MJ, Yu R, Kim JH, Baek HS, Ban JE, Lim KJ, Yang S, Hwang IT, Kim SY. Tracheal Bronchus with Persistent Pulmonary Hypertension of the Newborn: A Case Report. NEONATAL MEDICINE 2017. [DOI: 10.5385/nm.2017.24.4.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Affiliation(s)
- Se Hwan An
- Department of Pediatrics, Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Min Ju Yi
- Department of Pediatrics, Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Rita Yu
- Department of Pediatrics, Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Ji-Hye Kim
- Department of Pediatrics, Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Hey-Sung Baek
- Department of Pediatrics, Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Ji-Eun Ban
- Department of Pediatrics, Ewha Womans University School of Medicine, Seoul, Korea
| | - Kyoung Ja Lim
- Department of Radiology, Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Seung Yang
- Department of Pediatrics, Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Il-Tae Hwang
- Department of Pediatrics, Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Su Yeong Kim
- Department of Pediatrics, Kangdong Sacred Heart Hospital, Seoul, Korea
| |
Collapse
|
95
|
Gijtenbeek M, Haak MC, Ten Harkel DJ, Te Pas AB, Middeldorp JM, Klumper FJCM, van Geloven N, Oepkes D, Lopriore E. Persistent Pulmonary Hypertension of the Newborn in Twin-Twin Transfusion Syndrome: A Case-Control Study. Neonatology 2017; 112:402-408. [PMID: 28926832 DOI: 10.1159/000478844] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 06/20/2017] [Indexed: 12/29/2022]
Abstract
BACKGROUND Persistent pulmonary hypertension of the newborn (PPHN) is associated with severe morbidity and mortality. Twin-twin transfusion syndrome (TTTS) is suggested to increase the risk of PPHN. OBJECTIVES To describe the incidence of PPHN in TTTS twins and to identify risk factors in TTTS twins for the development of severe PPHN. METHODS Cases with severe PPHN were extracted from our monochorionic twin database (2002-2016). Severe PPHN was defined as severe hypoxaemia requiring mechanical ventilation and inhaled nitric oxide (iNO) treatment, confirmed by strict echocardiographic criteria. A case-control comparison within TTTS survivors was conducted to identify risk factors for PPHN. RESULTS The incidence of PPHN in TTTS twins was 4% (24/598, 95% confidence interval [CI] 2.7-5.9%) and 0.4% (2/493, 95% CI 0.1-1.5%) in uncomplicated monochorionic twins (odds ratio [OR] 10.3, 95% CI 2.4-43.9; p = 0.002). Two risk factors were independently associated with PPHN: severe prematurity (OR 3.3, 95% CI 1.0-11.4) and recipient status (OR 3.9, 95% CI 1.4-11.0). In TTTS recipients, another risk factor for PPHN is anaemia at birth (OR 7.2, 95% CI 1.8-29.6). CONCLUSION Clinicians caring for neonates with TTTS should be aware of the 10-fold increased risk of PPHN compared to uncomplicated monochorionic twins. PPHN occurs more often in case of premature delivery and in recipient twins, particularly in the presence of anaemia at birth. As the development of severe PPHN is difficult to predict, we advise that all TTTS twins should be delivered in a tertiary care centre with iNO treatment options.
Collapse
Affiliation(s)
- Manon Gijtenbeek
- Division of Fetal Medicine, Department of Obstetrics, Leiden University Medical Center, Leiden, The Netherlands
| | | | | | | | | | | | | | | | | |
Collapse
|