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Gowda S, Ball MK, Lakshminrusimha S, Rios DR, McNamara PJ. Hemodynamic instability in the transitional period after birth. Semin Perinatol 2024:151986. [PMID: 39438158 DOI: 10.1016/j.semperi.2024.151986] [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] [Indexed: 10/25/2024]
Abstract
It is not uncommon for a patient to experience hemodynamic instability following birth. This is due to the fact that the transitional period requires dramatic cardiorespiratory changes. When it goes well, improved lung compliance and successful transition to the postnatal circulation is seen. However, it is highly beneficial that clinicians have a solid understanding of all of the required changes, the unique aspects of the neonatal myocardium, and the influence of cardiovascular disease on normal adaptive mechanisms. In this manuscript, we will review the physiology of the normal postnatal circulatory adaptation, the unique characteristics of the neonatal myocardium and how it behaves in states of altered loading conditions, and the impact of hemodynamic disease states on health and wellbeing during the immediate postnatal time-period.
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Affiliation(s)
- Sharada Gowda
- Texas Children's Hospital, Houston, TX, United States
| | - Molly K Ball
- The Ohio State University and Nationwide Children's Hospital, Columbus, OH, United States
| | | | - Danielle R Rios
- University of Iowa Stead Family Children's Hospital, 200 Hawkins Dr. 8805 JPP, Iowa City, IA 52242, United States.
| | - Patrick J McNamara
- University of Iowa Stead Family Children's Hospital, 200 Hawkins Dr. 8805 JPP, Iowa City, IA 52242, United States
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2
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Solís-García G, Bravo MC, Pellicer A. Cardiorespiratory interactions during the transitional period in extremely preterm infants: a narrative review. Pediatr Res 2024:10.1038/s41390-024-03451-6. [PMID: 39179873 DOI: 10.1038/s41390-024-03451-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 07/03/2024] [Accepted: 07/18/2024] [Indexed: 08/26/2024]
Abstract
We aimed to review the physiology and evidence behind cardiorespiratory interactions during the transitional circulation of extremely preterm infants with fragile physiology and to propose a framework for future research. Cord clamping strategies have a great impact on initial haemodynamic changes, and appropriate transition can be facilitated by establishing spontaneous ventilation before cord clamping. Mechanical ventilation modifies preterm transitional haemodynamics, with positive pressure ventilation affecting the right and left heart loading conditions. Pulmonary vascular resistances can be minimized by ventilating with optimal lung volumes at functional residual capacity, and other pulmonary vasodilator treatments such as inhaled nitric oxide can be used to improve ventilation/perfusion mismatch. Different cardiovascular drugs can be used to provide support during transition in this population, and it is important to understand both their cardiovascular and respiratory effects, in order to provide adequate support to vulnerable preterm infants and improve outcomes. Current available non-invasive bedside tools, such as near-infrared spectroscopy, targeted neonatal echocardiography, or lung ultrasound offer the opportunity to precisely monitor cardiorespiratory interactions in preterm infants. More research is needed in this field using precision medicine to strengthen the benefits and avoid the harms associated to early neonatal interventions. IMPACT: In extremely preterm infants, haemodynamic and respiratory transitions are deeply interconnected, and their changes have a key impact in the establishment of lung aireation and postnatal circulation. We describe how mechanical ventilation modifies heart loading conditions and pulmonary vascular resistances in preterm patients, and how hemodynamic interventions such as cord clamping strategies or cardiovascular drugs affect the infant respiratory status. Current available non-invasive bedside tools can help monitor cardiorespiratory interactions in preterm infants. We highlight the areas of research in which precision medicine can help strengthen the benefits and avoid the harms associated to early neonatal interventions.
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Affiliation(s)
- Gonzalo Solís-García
- Department of Neonatology, La Paz University Hospital and IdiPaz (La Paz Hospital Institute for Health Research), Madrid, Spain.
| | - María Carmen Bravo
- Department of Neonatology, La Paz University Hospital and IdiPaz (La Paz Hospital Institute for Health Research), Madrid, Spain
- Consultant Neonatologist, Rotunda Hospital, Dublin, Ireland
| | - Adelina Pellicer
- Department of Neonatology, La Paz University Hospital and IdiPaz (La Paz Hospital Institute for Health Research), Madrid, Spain
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3
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Sk MH, Singh P, Saha B. Hemodynamically significant patent ductus arteriosus profile in preterm neonates (26-34 weeks' gestation) undergoing surfactant replacement therapy in India: a prospective observational study. J Trop Pediatr 2024; 70:fmae021. [PMID: 39126813 DOI: 10.1093/tropej/fmae021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/12/2024]
Abstract
Surfactant administration significantly improves respiratory outcomes in preterm infants with respiratory distress syndrome (RDS). However, surfactant administration may lead to hemodynamic alterations, particularly in the heart, affecting the patent ductus arteriosus (PDA), the consequences of which are not fully understood. This prospective observational study took place in an Indian neonatal care unit from July 2019 to November 2020, enrolling preterm neonates (26-34 weeks' gestation) with RDS needing non-invasive positive pressure ventilation. They were divided into two groups: those who received surfactant while on respiratory support and those who did not. All newborns in the study had an initial echocardiogram within 24 h to detect PDA flow. Subsequent echocardiograms were conducted between 48 and 72 h or earlier based on symptoms. Of 220 infants requiring respiratory support, 84 were enrolled, with 42 in each group. While demographic variables were similar, the surfactant group had a lower median gestational age (29.0 vs. 31.0 weeks). In the surfactant group, a significantly higher percentage of neonates had hemodynamically significant PDA (hsPDA) compared to the non-surfactant group (54.76% vs. 26.19%, P-value = .008). Multiple logistic regression found no significant association between gestation, birth weight, or shock and hsPDA occurrence. Pulmonary hemorrhage occurred more often in the surfactant group. Bronchopulmonary dysplasia (BPD), intraventricular hemorrhage (IVH) > grade 2, and necrotizing enterocolitis (NEC) ≥ grade 2 did not differ significantly between the groups. Surfactant therapy via the less invasive surfactant administration technique was associated with a higher incidence of hsPDA. While surfactant is crucial for neonatal respiratory care, its potential hemodynamic effects, including hsPDA, should be considered.
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Affiliation(s)
- Md Habibullah Sk
- Department of Neonatology, Institute of Post Graduate Medical Education & Research, SSKM Hospital, Kolkata 700020, India
| | - Prachi Singh
- Department of Neonatology, Institute of Post Graduate Medical Education & Research, SSKM Hospital, Kolkata 700020, India
| | - Bijan Saha
- Department of Neonatology, Institute of Post Graduate Medical Education & Research, SSKM Hospital, Kolkata 700020, India
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4
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Odackal NJ, Crume M, Naik T, Stiver C. Cardiac Development and Related Clinical Considerations. Neoreviews 2024; 25:e401-e414. [PMID: 38945970 DOI: 10.1542/neo.25-7-e401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/27/2024] [Accepted: 03/06/2024] [Indexed: 07/02/2024]
Abstract
The anatomy, physiology, and hemodynamics of the premature heart vary along the range of gestational ages cared for in neonatal intensive care units, from 22 weeks to term gestation. Clinical management of the preterm neonate should account for this heterogenous development. This requires an understanding of the impact of ex utero stressors on immature and disorganized cardiac tissue, the different state of hemodynamics across intracardiac shunts impacting the natural transition from fetal to neonatal life, and the effects of intensive pharmacologic and non-pharmacologic interventions that have systemic consequences influencing cardiac function. This article provides a review of the increasing but still limited body of literature on the anatomy, hemodynamics, and electrophysiology of the preterm heart with relevant clinical considerations.
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Affiliation(s)
- Namrita J Odackal
- Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH
- Division of Neonatology, Nationwide Children's Hospital, Columbus, OH
| | - Mary Crume
- Division of Neonatology, Nationwide Children's Hospital, Columbus, OH
| | - Tanvi Naik
- Center for Perinatal Research, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH
| | - Corey Stiver
- Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH
- Division of Cardiology, Nationwide Children's Hospital, Columbus, OH
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5
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Varghese NP, Altit G, Gubichuk MM, Siddaiah R. Navigating Diagnostic and Treatment Challenges of Pulmonary Hypertension in Infants with Bronchopulmonary Dysplasia. J Clin Med 2024; 13:3417. [PMID: 38929946 PMCID: PMC11204350 DOI: 10.3390/jcm13123417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/29/2024] [Accepted: 05/31/2024] [Indexed: 06/28/2024] Open
Abstract
Advances in perinatal intensive care have significantly enhanced the survival rates of extremely low gestation-al-age neonates but with continued high rates of bronchopulmonary dysplasia (BPD). Nevertheless, as the survival of these infants improves, there is a growing awareness of associated abnormalities in pulmonary vascular development and hemodynamics within the pulmonary circulation. Premature infants, now born as early as 22 weeks, face heightened risks of adverse development in both pulmonary arterial and venous systems. This risk is compounded by parenchymal and airway abnormalities, as well as factors such as inflammation, fibrosis, and adverse growth trajectory. The presence of pulmonary hypertension in bronchopulmonary dysplasia (BPD-PH) has been linked to an increased mortality and substantial morbidities, including a greater susceptibility to later neurodevelopmental challenges. BPD-PH is now recognized to be a spectrum of disease, with a multifactorial pathophysiology. This review discusses the challenges associated with the identification and management of BPD-PH, both of which are important in minimizing further disease progression and improving cardiopulmonary morbidity in the BPD infant.
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Affiliation(s)
- Nidhy P. Varghese
- Department of Pediatrics, Division of Pulmonology, Baylor College of Medicine and Texas Children’s Hospital, 6701 Fannin St., Ste 1040, Houston, TX 77030, USA
| | - Gabriel Altit
- Division of Neonatology, Department of Pediatrics, Montreal Children’s Hospital, McGill University, Montreal, QC H4A 3J1, Canada;
| | - Megan M. Gubichuk
- Division of Pulmonary and Sleep Medicine, Children’s Mercy Hospital, Kansas City, MO 64108, USA;
| | - Roopa Siddaiah
- Department of Pediatrics, Penn State Health Children’s Hospital, Hershey, PA 17033, USA;
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Cucerea M, Moscalu M, Ognean ML, Fagarasan A, Toma D, Marian R, Anciuc-Crauciuc M, Racean A, Gall Z, Simon M. Impact of Early Surfactant Administration on Ductus Arteriosus Assessed at 24 h in Preterm Neonates Less than 32 Weeks of Gestational Age. Biomedicines 2024; 12:1136. [PMID: 38927343 PMCID: PMC11201054 DOI: 10.3390/biomedicines12061136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/09/2024] [Accepted: 05/18/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND AND OBJECTIVES The purpose of this study was to investigate whether early surfactant administration affects the status of ductus arteriosus (DA) in preterm infants ≤ 32 weeks of gestational age (GA) within 24 h of birth. MATERIALS AND METHODS It is a prospective study conducted from 1 March 2022 to 31 December 2023 in a tertiary academic center. In-born infants ≤ 32 weeks of gestation (n = 88) were enrolled. The study group was further divided into surfactant (n = 44) and non-surfactant (n = 44) subgroups. RESULTS A total of 76% of the preterm infants who received surfactant therapy (RRR = 0.839) recorded an increase in Kindler score at 24 h of life (1 - RR = 1 - 0.24 = 76%). Surfactant administration was significantly associated with decreased pre-ductal diastolic pressure (29.9 mmHg vs. 34.8 mmHg, p = 0.0231), post-ductal diastolic pressure (28.7 mmHg vs. 32.2 mmHg, p = 0.0178), pre-ductal MAP (41.6 mmHg vs. 46.5 mmHg, p = 0.0210), and post-ductal MAP (41.0 mmHg vs. 45.3 mmHg, p = 0.0336). There were no significant changes in ductus arteriosus parameters at 24 h of life. CONCLUSIONS Early surfactant administration does not affect the status of ductus arteriosus in preterm infants ≤ 32 weeks of gestational age at 24 h of life.
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Affiliation(s)
- Manuela Cucerea
- Neonatology Department, George Emil Palade University of Medicine, Pharmacy, Science, and Technology, 540142 Targu Mures, Romania; (M.C.); (M.A.-C.); (A.R.); (Z.G.); (M.S.)
| | - Mihaela Moscalu
- Department of Preventive Medicine and Interdisciplinarity, Grigore T. Popa University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Maria-Livia Ognean
- Dental Medicine and Nursing Department, Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania;
| | - Amalia Fagarasan
- Pediatrics 3 Department, George Emil Palade University of Medicine, Pharmacy, Science, and Technology, 540142 Targu Mures, Romania; (A.F.); (D.T.)
| | - Daniela Toma
- Pediatrics 3 Department, George Emil Palade University of Medicine, Pharmacy, Science, and Technology, 540142 Targu Mures, Romania; (A.F.); (D.T.)
| | - Raluca Marian
- Cellular and Molecular Biology Department, George Emil Palade University of Medicine, Pharmacy, Science, and Technology, 540142 Targu Mures, Romania;
| | - Madalina Anciuc-Crauciuc
- Neonatology Department, George Emil Palade University of Medicine, Pharmacy, Science, and Technology, 540142 Targu Mures, Romania; (M.C.); (M.A.-C.); (A.R.); (Z.G.); (M.S.)
| | - Andreea Racean
- Neonatology Department, George Emil Palade University of Medicine, Pharmacy, Science, and Technology, 540142 Targu Mures, Romania; (M.C.); (M.A.-C.); (A.R.); (Z.G.); (M.S.)
| | - Zsuzsanna Gall
- Neonatology Department, George Emil Palade University of Medicine, Pharmacy, Science, and Technology, 540142 Targu Mures, Romania; (M.C.); (M.A.-C.); (A.R.); (Z.G.); (M.S.)
| | - Marta Simon
- Neonatology Department, George Emil Palade University of Medicine, Pharmacy, Science, and Technology, 540142 Targu Mures, Romania; (M.C.); (M.A.-C.); (A.R.); (Z.G.); (M.S.)
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Pugnaloni F, Doni D, Lucente M, Fiocchi S, Capolupo I. Ductus Arteriosus in Fetal and Perinatal Life. J Cardiovasc Dev Dis 2024; 11:113. [PMID: 38667731 PMCID: PMC11050351 DOI: 10.3390/jcdd11040113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 03/30/2024] [Accepted: 03/30/2024] [Indexed: 04/28/2024] Open
Abstract
The ductus arteriosus represents an essential vascular structure connecting the pulmonary artery and the aorta. Over the past decades, there has been substantial advancement in our understanding of both the fundamental and clinical aspects of the ductus arteriosus. In particular, the clarification of the regulatory mechanisms governing ductal patency in critical stages such as the fetal and the perinatal period has enabled optimal management of both physiological and pathological conditions in which the ductus arteriosus plays a crucial role. Furthermore, a more in-depth understanding of the regulatory mechanisms controlling this fundamental structure has facilitated the development of advanced therapeutic strategies and personalized interventions. In the present review, we provide a comprehensive overview of the ductus arteriosus during fetal and perinatal life, encompassing its physiological functions, pathological conditions, and clinical implications. Through this examination, we aim to contribute to a broader understanding of the ductus arteriosus' role in these critical developmental stages and its significance in clinical practice.
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Affiliation(s)
- Flaminia Pugnaloni
- Neonatal Intensive Care Unit, Fetal Neonatal and Cardiological Science Research Area, “Bambino Gesù” Children’s Hospital, IRCCS, 00165 Rome, Italy;
| | - Daniela Doni
- Neonatal Intensive Care Unit, Fondazione IRCCS San Gerardo Dei Tintori, 20900 Monza, Italy;
| | - Mariella Lucente
- Neonatal Intensive Care Unit, Azienda Ospedaliera di Cosenza, 87100 Cosenza, Italy;
| | - Stefano Fiocchi
- Pediatric Department, G. Fornaroli Hospital, 20013 Magenta, Italy;
| | - Irma Capolupo
- Neonatal Intensive Care Unit, Fetal Neonatal and Cardiological Science Research Area, “Bambino Gesù” Children’s Hospital, IRCCS, 00165 Rome, Italy;
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Kipfmueller F, Leyens J, Pugnaloni F, Bo B, Grass T, Lemloh L, Schroeder L, Nitsch-Felsecker P, Berg C, Heydweiller A, Strizek B, Mueller A. Spontaneous breathing in selected neonates with very mild congenital diaphragmatic hernia. Pediatr Pulmonol 2024; 59:617-624. [PMID: 38018668 DOI: 10.1002/ppul.26791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/29/2023] [Accepted: 11/21/2023] [Indexed: 11/30/2023]
Abstract
AIMS Current treatment guidelines recommend immediate postnatal intubation in all neonates with congenital diaphragmatic hernia (CDH). This study aimed to investigate the feasibility and outcomes of a spontaneous breathing approach (SBA) versus immediate intubation in neonates with prenatally diagnosed very mild CDH. METHODS A retrospective study was conducted comparing neonates with very mild CDH (left-sided, liver-down, observed-to-expected lung-to-head ratio ≥45%) undergoing SBA and matched controls receiving standard treatment. Data on early echocardiographic findings, respiratory support, length of hospital stay, and clinical outcomes were analyzed. RESULTS Of 151 CDH neonates, eight underwent SBA, while 31 received standard treatment. SBA was successful in six of eight patients. SBA patients had shorter length of stay (14 vs. 30 days, p = .005), mechanical ventilation (3.5 vs. 8.7 days, p = .011), and oxygen supplementation (3.2 vs. 9.3 days, p = .013) compared to matched controls. Echocardiographic evidence of pulmonary hypertension and cardiac dysfunction were significantly lower in SBA neonates after admission but similar before surgical repair. The SBA group tolerated enteral feeding earlier (day of life 7 vs. 16, p = .019). CONCLUSIONS SBA appears feasible and beneficial for prenatally diagnosed very mild CDH. It was associated with a shortened hospital stay supportive therapies. However, larger trials are needed to confirm these findings and determine optimal respiratory support.
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Affiliation(s)
- Florian Kipfmueller
- Department of Neonatology and Pediatric Intensive Care, Children's Hospital, University of Bonn, Bonn, Germany
| | - Judith Leyens
- Department of Neonatology and Pediatric Intensive Care, Children's Hospital, University of Bonn, Bonn, Germany
| | - Flaminia Pugnaloni
- Department of Neonatology and Pediatric Intensive Care, Children's Hospital, University of Bonn, Bonn, Germany
- Medical and Surgical Department of Fetus-Newborn-Infant, Neonatal Intensive Care Unit, "Bambino Gesù" Children's Hospital, IRCCS, Rome, Italy
| | - Bartolomeo Bo
- Department of Neonatology and Pediatric Intensive Care, Children's Hospital, University of Bonn, Bonn, Germany
| | - Tamara Grass
- Department of Neonatology and Pediatric Intensive Care, Children's Hospital, University of Bonn, Bonn, Germany
| | - Lotte Lemloh
- Department of Neonatology and Pediatric Intensive Care, Children's Hospital, University of Bonn, Bonn, Germany
| | - Lukas Schroeder
- Department of Neonatology and Pediatric Intensive Care, Children's Hospital, University of Bonn, Bonn, Germany
| | - Patrizia Nitsch-Felsecker
- Department of Neonatology and Pediatric Intensive Care, Children's Hospital, University of Bonn, Bonn, Germany
| | - Christoph Berg
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
| | - Andreas Heydweiller
- Department of General, Visceral, Thoracic and Vascular Surgery, Division of Pediatric Surgery, University of Bonn, Bonn, Germany
| | - Brigitte Strizek
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
| | - Andreas Mueller
- Department of Neonatology and Pediatric Intensive Care, Children's Hospital, University of Bonn, Bonn, Germany
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van Haren JS, Delbressine FLM, Schoberer M, te Pas AB, van Laar JOEH, Oei SG, van der Hout-van der Jagt MB. Transferring an extremely premature infant to an extra-uterine life support system: a prospective view on the obstetric procedure. Front Pediatr 2024; 12:1360111. [PMID: 38425664 PMCID: PMC10902175 DOI: 10.3389/fped.2024.1360111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 02/02/2024] [Indexed: 03/02/2024] Open
Abstract
To improve care for extremely premature infants, the development of an extrauterine environment for newborn development is being researched, known as Artificial Placenta and Artificial Womb (APAW) technology. APAW facilitates extended development in a liquid-filled incubator with oxygen and nutrient supply through an oxygenator connected to the umbilical vessels. This setup is intended to provide the optimal environment for further development, allowing further lung maturation by delaying gas exposure to oxygen. This innovative treatment necessitates interventions in obstetric procedures to transfer an infant from the native to an artificial womb, while preventing fetal-to-neonatal transition. In this narrative review we analyze relevant fetal physiology literature, provide an overview of insights from APAW studies, and identify considerations for the obstetric procedure from the native uterus to an APAW system. Lastly, this review provides suggestions to improve sterility, fetal and maternal well-being, and the prevention of neonatal transition.
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Affiliation(s)
- Juliette S. van Haren
- Department of Industrial Design, Eindhoven University of Technology, Eindhoven, Netherlands
- Obstetrics and Gynaecology, Máxima Medical Centre, Veldhoven, Netherlands
| | | | - Mark Schoberer
- Institute for Applied Medical Engineering and Clinic for Neonatology, University Hospital Aachen, Aachen, Germany
| | - Arjan B. te Pas
- Department of Pediatrics, Leiden University Medical Center, Leiden, Netherlands
| | - Judith O. E. H. van Laar
- Obstetrics and Gynaecology, Máxima Medical Centre, Veldhoven, Netherlands
- Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
| | - S. Guid Oei
- Obstetrics and Gynaecology, Máxima Medical Centre, Veldhoven, Netherlands
- Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
| | - M. Beatrijs van der Hout-van der Jagt
- Obstetrics and Gynaecology, Máxima Medical Centre, Veldhoven, Netherlands
- Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
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10
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Ali SK, Stanford AH, McNamara PJ, Gupta S. Surfactant and neonatal hemodynamics during the postnatal transition. Semin Fetal Neonatal Med 2023; 28:101498. [PMID: 38040585 DOI: 10.1016/j.siny.2023.101498] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2023]
Abstract
Surfactant replacement therapy (SRT) has revolutionized the management of respiratory distress syndrome (RDS) in premature infants, leading to improved survival rates and decreased morbidity. SRT may, however, be associated with hemodynamic changes, which can have both positive and negative effects on the immature cardiovascular system, during the transitional adaptation from fetal to extrauterine environment. However, there is a relative paucity of evidence in this domain, with most of them derived from small heterogeneous observational studies providing conflicting results. In this review, we will discuss the hemodynamic changes that occur with surfactant administration during this vulnerable period, focusing on available evidence regarding changes in pulmonary and systemic blood flow, cerebral circulation and their clinical implications.
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Affiliation(s)
- Sanoj Km Ali
- Division of Neonatology, Sidra Medicine, Doha, Qatar; University of Tasmania, Australia; Murdoch Children's Research Institute, Melbourne, Australia.
| | - Amy H Stanford
- Pediatrics - Neonatology, Department of Pediatrics, University of Iowa, Iowa City, LW, USA.
| | - Patrick J McNamara
- Division of Neonatology, Department of Pediatrics and Internal Medicine, University of Iowa, Iowa City, LW, USA.
| | - Samir Gupta
- Department of Engineering, Durham University, United Kingdom; Division of Neonatology, Department of Pediatrics, Sidra Medicine, Doha, Qatar.
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11
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de Waal K, Crendal E, Poon ACY, Latheef MS, Sachawars E, MacDougall T, Phad N. The association between patterns of early respiratory disease and diastolic dysfunction in preterm infants. J Perinatol 2023; 43:1268-1273. [PMID: 36823313 PMCID: PMC10541326 DOI: 10.1038/s41372-023-01608-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 01/04/2023] [Accepted: 01/11/2023] [Indexed: 02/25/2023]
Abstract
BACKGROUND This study aims to determine the association between clinical patterns of early respiratory disease and diastolic dysfunction in preterm infants. METHODS Preterm infants <29 weeks' gestation underwent cardiac ultrasounds around day 7 and 14-21. Respiratory dysfunction patterns were classified as stable (ST), respiratory deterioration (RD) or early persistent respiratory dysfunction (EPRD) according to oxygen need. Diastolic dysfunction was diagnosed using a multi-parameter approach including left atrial strain (LASR) to help differentiate between cardiac or pulmonary pathophysiology. RESULTS 98 infants (mean 27 weeks) were included. The prevalence of ST, RD and EPRD was 53%, 21% and 26% respectively. Diastolic dysfunction was more prevalent in the RD and EPRD groups with patent ductus arteriosus and significant growth restriction as risk factors. Not all infants with a PDA developed diastolic dysfunction. LASR was lower in the EPDR group. CONCLUSION Respiratory dysfunction patterns are associated with diastolic dysfunction in preterm infants.
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Affiliation(s)
- Koert de Waal
- John Hunter Children's Hospital, department of neonatology, Newcastle, NSW, Australia.
- University of Newcastle, Newcastle, NSW, Australia.
| | - Edward Crendal
- John Hunter Children's Hospital, department of neonatology, Newcastle, NSW, Australia
- John Hunter Hospital, department of cardiology, Newcastle, NSW, Australia
| | | | | | - Elias Sachawars
- John Hunter Hospital, department of radiology, Newcastle, NSW, Australia
| | - Thomas MacDougall
- John Hunter Hospital, department of radiology, Newcastle, NSW, Australia
| | - Nilkant Phad
- John Hunter Children's Hospital, department of neonatology, Newcastle, NSW, Australia
- University of Newcastle, Newcastle, NSW, Australia
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12
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Sehgal A, Menahem S. The left ventricle in well newborns versus those with perinatal asphyxia, haemodynamically significant ductus arteriosus or fetal growth restriction. Transl Pediatr 2023; 12:1735-1743. [PMID: 37814715 PMCID: PMC10560354 DOI: 10.21037/tp-23-59] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 07/10/2023] [Indexed: 10/11/2023] Open
Abstract
Hemodynamic changes accompanying the initial breaths at the time of birth are especially important for a smooth transition of fetal to neonatal circulation. Understanding the normal transitional physiology and the clinical impact of adverse adaptation is important for delineating pathology so as to guide physiologically relevant therapies. Disorders such as severe perinatal asphyxia, hemodynamically significant patent ductus arteriosus (and its surgical ligation) and utero-placental insufficiency underlying fetal growth restriction, can adversely affect left ventricular (LV) function. The left ventricle is the predominant chamber involved in systemic perfusion during postnatal life. Cardiac output is closely linked to afterload; the latter is determined by arterial properties such as stiffness and compliance. This article outlines normal transition in term and preterm infants. It also highlights the adverse impact of three not uncommon neonatal disorders on LV function. Perinatal asphyxia leads to a reduced LV output, superior vena cava and coronary artery blood flow and an increase in the troponin level. Multiple haemodynamic changes are observed in the premature infant with a large patent ductus arteriosus. They need careful analysis to determine when ligation should proceed. Ligation itself generally results in a dramatic increase in afterload which may lead to a reduction in LV contractility and the need for ionotropic support. Fetal growth restricted infants have a higher systolic pressure, a somewhat hypertrophied heart arising from an increased arterial wall thickness/stiffness and systemic peripheral resistance. Point of care ultrasound (POCUS) helps differentiate normal transition and that resulting from neonatal disorders. It may be increasingly utilized in guiding management.
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Affiliation(s)
- Arvind Sehgal
- Monash Newborn, Monash Children’s Hospital, Clayton, VIC, Australia
- Department of Paediatrics, Monash University, Clayton, VIC, Australia
| | - Samuel Menahem
- Department of Paediatrics, Monash University, Clayton, VIC, Australia
- Murdoch Children’s Research Institute, University of Melbourne, Parkville, VIC, Australia
- Melbourne Children’s Cardiology, Caulfield North, VIC, Australia
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