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Sankaran D, Li JRA, Lakshminrusimha S. Meconium Aspiration Syndrome, Hypoxic-Ischemic Encephalopathy and Therapeutic Hypothermia-A Recipe for Severe Pulmonary Hypertension? CHILDREN (BASEL, SWITZERLAND) 2024; 11:673. [PMID: 38929252 PMCID: PMC11202216 DOI: 10.3390/children11060673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/21/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024]
Abstract
Hypoxic-ischemic encephalopathy (HIE) is the leading cause of mortality among term newborns globally. Infants born through meconium-stained amniotic fluid are at risk of developing meconium aspiration syndrome (MAS) and HIE. Simultaneous occurrence of MAS and HIE is a perilous combination for newborns due to the risk of persistent pulmonary hypertension of the newborn (PPHN). Moreover, therapeutic hypothermia (TH), which is the current standard of care for the management of HIE, may increase pulmonary vascular resistance (PVR) and worsen PPHN. Infants with MAS and HIE require close cardiorespiratory and hemodynamic monitoring for PPHN. Therapeutic strategies, including oxygen supplementation, ventilation, use of surfactant, inhaled nitric oxide and other pulmonary vasodilators, and systemic vasopressors, play a critical role in the management of PPHN in MAS, HIE, and TH. While TH reduces death or disability in infants with HIE, infants with MAS and HIE undergoing TH need close hemodynamic monitoring for PPHN.
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Affiliation(s)
- Deepika Sankaran
- Division of Neonatology, University of California, Davis, Sacramento, CA 95817, USA;
- Department of Pediatrics, University of California, Davis, Sacramento, CA 95817, USA;
| | - Jessa Rose A. Li
- Department of Pediatrics, University of California, Davis, Sacramento, CA 95817, USA;
| | - Satyan Lakshminrusimha
- Division of Neonatology, University of California, Davis, Sacramento, CA 95817, USA;
- Department of Pediatrics, University of California, Davis, Sacramento, CA 95817, USA;
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Tsoi SM, Steurer M, Nawaytou H, Cheung S, Keller RL, Fineman JR. Defining the Typical Course of Persistent Pulmonary Hypertension of the Newborn: When to Think Beyond Reversible Causes. J Pediatr 2024; 273:114131. [PMID: 38823627 DOI: 10.1016/j.jpeds.2024.114131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/17/2024] [Accepted: 05/27/2024] [Indexed: 06/03/2024]
Abstract
OBJECTIVES To describe the typical clinical course of reversible persistent pulmonary hypertension of the newborn (PPHN) from perinatal etiologies and compare that with the clinical course of PPHN due to underlying fetal developmental etiologies. STUDY DESIGN This was a single-center, retrospective cohort study of liveborn newborns either born or transferred to our facility for higher level of care between 2015 and 2020 with gestational age ≥35 weeks and a clinical diagnosis of PPHN in the electronic health record. Newborns with complex congenital heart disease and congenital diaphragmatic hernia were excluded. Using all data available at time of collection, newborns were stratified into 2 groups by PPHN etiology - perinatal and fetal developmental causes. Primary outcomes were age at initiation, discontinuation, and total duration of extracorporeal life support, mechanical ventilation, supplemental oxygen, inhaled nitric oxide, inotropic support, and prostaglandin E1. Our secondary outcome was age at echocardiographic resolution of pulmonary hypertension. Groups were compared by t-test. Time-to-event Kaplan Meier curves described and compared (log-rank test) discontinuation of each therapy. RESULTS Sixty-four (72%) newborns had perinatal etiologies whereas 24 (28%) had fetal developmental etiologies. The resolution of perinatal PPHN was more rapid compared with fetal developmental PPHN. By 10 days of age, more neonates were off inotropes (98% vs 29%, P < .01), decannulated from extracorporeal life support (100% vs 0%, P < .01), extubated (75% vs 37%, P < .01), and had echocardiographic resolution of PH (35% vs 7%, P = .02). CONCLUSIONS An atypical PPHN course, characterized by persistent targeted therapies in the second week of life, warrants further work-up for fetal developmental causes.
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Affiliation(s)
- Stephanie M Tsoi
- Division of Critical Care Medicine, Department of Pediatrics, University of California San Francisco, San Francisco, CA.
| | - Martina Steurer
- Division of Critical Care Medicine, Department of Pediatrics, University of California San Francisco, San Francisco, CA; Division of Neonatology, Department of Pediatrics, University of California, San Francisco, San Francisco, CA; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA
| | - Hythem Nawaytou
- Division of Cardiology, Department of Pediatrics, University of California San Francisco, San Francisco, CA
| | - Shannon Cheung
- Division of Critical Care Medicine, Department of Pediatrics, University of California San Francisco, San Francisco, CA
| | - Roberta L Keller
- Division of Neonatology, Department of Pediatrics, University of California, San Francisco, San Francisco, CA
| | - Jeffrey R Fineman
- Division of Critical Care Medicine, Department of Pediatrics, University of California San Francisco, San Francisco, CA; Cardiovascular Research Institute, University of California San Francisco, San Francisco, CA
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Timberline S, Bhatt A, Sunderji S, Tancredi DJ, Lakshminrusimha S, Siefkes H. Novel scoring tool of hypoxemic respiratory failure and pulmonary hypertension for defining severity of persistent pulmonary hypertension of newborn. J Perinatol 2023; 43:1281-1287. [PMID: 37626160 PMCID: PMC10541330 DOI: 10.1038/s41372-023-01762-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/02/2023] [Accepted: 08/21/2023] [Indexed: 08/27/2023]
Abstract
OBJECTIVE To obtain preliminary validity data for a hypoxemic respiratory failure/pulmonary hypertension (HRF/PH) score for classifying persistent pulmonary hypertension of the newborn (PPHN). STUDY DESIGN Retrospective chart review of 100 consecutive neonates admitted to a Children's hospital from 2016-2021 with PPHN, gestational age ≥34 weeks, and echocardiograms in the first week. We assessed the correlation between HRF/PH score and short-term outcomes using linear and logistic regressions. RESULTS HRF/PH scores ranged 2-12 (mean 8.5), and were classified mild (0-5), moderate (6-10), and severe (11-15), with 6%, 77% and 17% infants in respective categories. HRF/PH score category correlated with invasive ventilation, nitric oxide, high frequency ventilation, vasoactive infusions, extracorporeal life support and death. HRF/PH score category did not correlate with duration of support or length of stay. CONCLUSION The HRF/PH score offers a promising representation of disease severity for PPHN. The tool requires further validation in prospective studies and evaluation for long-term outcomes.
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Affiliation(s)
- Sage Timberline
- Department of Pediatrics, University of Virginia, Charlottesville, VA, USA
| | - Avni Bhatt
- School of Medicine, University of California, Davis, Sacramento, CA, USA
| | - Sherzana Sunderji
- Department of Pediatrics, University of California, Davis, Sacramento, CA, USA
| | - Daniel J Tancredi
- Department of Pediatrics, University of California, Davis, Sacramento, CA, USA
| | | | - Heather Siefkes
- Department of Pediatrics, University of California, Davis, Sacramento, CA, USA.
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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.
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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.
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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
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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.
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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
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Abstract
Many questions surround fluid bolus therapy and subsequent fluid management in neonatal critical care as they do in pediatric and adult critical care. This review explores the known key clinical aspects of fluid bolus therapy and fluid balance in the first 7 days of life and provides suggestions for further work in this area. It draws on the pediatric and adult critical care literature to provide thought-provoking data around the potential harms of excessive intravenous fluids, which may prove relevant to neonatology. Current data suggest that fluid bolus therapy and early-life positive fluid balance in neonates may be associated with harm.
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Affiliation(s)
- Erin Grace
- Department of Neonatal Medicine, Women's and Children's Hospital, North Adelaide, South Australia; SAHMRI Women and Kids, South Australian Health and Medical Research Institute, Adelaide, South Australia; Adelaide Medical School and the Robinson Research Institute, University of Adelaide, Adelaide, South Australia
| | - Amy K Keir
- Department of Neonatal Medicine, Women's and Children's Hospital, North Adelaide, South Australia; SAHMRI Women and Kids, South Australian Health and Medical Research Institute, Adelaide, South Australia; Adelaide Medical School and the Robinson Research Institute, University of Adelaide, Adelaide, South Australia.
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Lin F, Dong H, Song Y, Zhang T, Qi J, Xiao X, Cai Y. Effect of bronchopulmonary dysplasia on early intellectual development in preterm infants. Pediatr Int 2017; 59:691-697. [PMID: 28177185 DOI: 10.1111/ped.13257] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Revised: 01/10/2017] [Accepted: 02/03/2017] [Indexed: 12/30/2022]
Abstract
BACKGROUND The aim of this study was to investigate the effect of bronchopulmonary dysplasia (BPD) on the early intellectual development of preterm infants. METHODS From 2011 to 2015, 83 preterm infants diagnosed with BPD were recruited to the BPD group, and 89 preterm infants without BPD and 98 healthy term infants were randomly recruited to the non-BPD and term group, respectively. Neural and intellectual development according to the Gesell Development Scale were evaluated and compared between groups at 0-3 months, 3-6 months, 6-9 months, and 9-12 months of adjusted age for preterm infants and real age for term infants. Multivariate logistic regression was used to determine the associations between BPD and adverse neurological outcomes at 9-12 months of adjusted age. RESULTS Compared with term infants, preterm infants had significantly lower developmental quotients for adaptability, gross motor, fine motor, language and social skills. At follow up, deficits in one or more neurofunctions related to adaptability, gross motor, fine motor, language and social skills were significantly more frequent in preterm children with BPD than in those with no history of BPD. BPD was independently associated with adverse neurological outcome at 9-12 months of adjusted age in preterm infants. CONCLUSIONS Early intelligence disturbances occurred significantly more frequently in BPD infants than in non-BPD infants. Monitoring of the development of the nervous system in BPD infants should be strengthened.
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Affiliation(s)
- Fatao Lin
- Department of Neonatology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Haipeng Dong
- Department of Child Health Care, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yanyan Song
- Department of Neonatology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Tengwei Zhang
- Department of Neonatology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Junye Qi
- Department of Neonatology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Xuwen Xiao
- Department of Neonatology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yueju Cai
- Department of Neonatology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
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Keir A, Froessler B, Stanworth S. QUESTION 2: Are intravenous fluid boluses beneficial in late preterm or term infants with suspected haemodynamic compromise? Arch Dis Child 2016; 101:201-2. [PMID: 26527487 DOI: 10.1136/archdischild-2015-309182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 10/10/2015] [Indexed: 11/03/2022]
Affiliation(s)
- Amy Keir
- Robinson Research Institute, School of Medicine, University of Adelaide, South Australia, Australia
| | - Bernd Froessler
- Robinson Research Institute, School of Medicine, University of Adelaide, South Australia, Australia
| | - Simon Stanworth
- Robinson Research Institute, School of Medicine, University of Adelaide, South Australia, Australia
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