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Cave C, Samano D, Sharma AM, Dickinson J, Salomon J, Mahapatra S. Acute respiratory distress syndrome: A review of ARDS across the life course. J Investig Med 2024:10815589241270612. [PMID: 39092841 DOI: 10.1177/10815589241270612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
Acute respiratory distress syndrome (ARDS) is a multifactorial, inflammatory lung disease with significant morbidity and mortality that predominantly requires supportive care in its management. Although initially described in adult patients, the diagnostic definitions for ARDS have evolved over time to accurately describe this disease process in pediatric and, more recently, neonatal patients. The management of ARDS in each age demographic has converged in the application of lung-protective ventilatory strategies to mitigate the primary disease process and prevent its exacerbation by limiting ventilator-induced lung injury. However, differences arise in the preferred ventilatory strategies or adjunctive pulmonary therapies used to mitigate each type of ARDS. In this review, we compare and contrast the epidemiology, common etiologies, pathophysiology, diagnostic criteria, and outcomes of ARDS across the lifespan. Additionally, we discuss in detail the different management strategies used for each subtype of ARDS and spotlight how these strategies were applied to mitigate poor outcomes during the COVID-19 pandemic. This review is geared toward both clinicians and clinician-scientists as it not only summarizes the latest information on disease pathogenesis and patient management in ARDS across the lifespan but also highlights knowledge gaps for further investigative efforts. We conclude by projecting how future studies can fill these gaps in research and what improvements may be envisioned in the management of NARDS and PARDS based on the current breadth of literature on adult ARDS treatment strategies.
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Affiliation(s)
- Caleb Cave
- Division of Neonatology, and Division of Pulmonology, Department of Pediatrics, Children's Hospital and Medical Center, Omaha, University of Nebraska Medical Center, Omaha, NE, USA
| | - Dannielle Samano
- Division of Pulmonary, Sleep, and Critical Care Medicine, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Abhineet M Sharma
- Division of Neonatology, and Division of Pulmonology, Department of Pediatrics, Children's Hospital and Medical Center, Omaha, University of Nebraska Medical Center, Omaha, NE, USA
| | - John Dickinson
- Division of Pulmonary, Sleep, and Critical Care Medicine, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Jeffrey Salomon
- Division of Critical Care Medicine, Department of Pediatrics, Children's Hospital and Medical Center, Omaha, University of Nebraska Medical Center, Omaha, NE, USA
| | - Sidharth Mahapatra
- Division of Critical Care Medicine, Department of Pediatrics, Children's Hospital and Medical Center, Omaha, University of Nebraska Medical Center, Omaha, NE, USA
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Saraei N, Dabaghi M, Fusch G, Rochow N, Fusch C, Selvaganapathy PR. Scaled-up Microfluidic Lung Assist Device for Artificial Placenta Application with High Gas Exchange Capacity. ACS Biomater Sci Eng 2024; 10:4612-4625. [PMID: 38904210 DOI: 10.1021/acsbiomaterials.3c01635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
Premature neonates with underdeveloped lungs experience respiratory issues and need respiratory support, such as mechanical ventilation or extracorporeal membrane oxygenation (ECMO). The "artificial placenta" (AP) is a noninvasive approach that supports their lungs and reduces respiratory distress, using a pumpless oxygenator connected to the systemic circulation, and can address some of the morbidity issues associated with ECMO. Over the past decade, microfluidic blood oxygenators have garnered significant interest for their ability to mimic physiological conditions and incorporate innovative biomimetic designs. Achieving sufficient gas transfer at a low enough pressure drop for a pumpless operation without requiring a large volume of blood to prime such an oxygenator has been the main challenge with microfluidic lung assist devices (LAD). In this study, we improved the gas exchange capacity of our microfluidic-based artificial placenta-type LAD while reducing its priming volume by using a modified fabrication process that can accommodate large-area thin film microfluidic blood oxygenator (MBO) fabrication with a very high gas exchange surface. Additionally, we demonstrate the effectiveness of a LAD assembled by using these scaled-up MBOs. The LAD based on our artificial placenta concept effectively increases oxygen saturation levels by 30% at a flow rate of 40 mL/min and a pressure drop of 23 mmHg in room air, which is sufficient to support partial oxygenation for 1 kg preterm neonates in respiratory distress. When the gas ambient environment was changed to pure oxygen at atmospheric pressure, the LAD would be able to support premature neonates weighing up to 2 kg. Furthermore, our experiments reveal that the LAD can handle high blood flow rates of up to 150 mL/min and increase oxygen saturation levels by ∼20%, which is equal to an oxygen transfer of 7.48 mL/min in an enriched oxygen environment and among the highest for microfluidic AP type devices. Such performance makes this LAD suitable for providing essential support to 1-2 kg neonates in respiratory distress.
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Affiliation(s)
| | | | | | - Niels Rochow
- Nuremberg Department of Pediatrics, Paracelsus Medical University, University Hospital, Nuremberg 90419, Germany
| | - Christoph Fusch
- Nuremberg Department of Pediatrics, Paracelsus Medical University, University Hospital, Nuremberg 90419, Germany
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Nes E, Chugh PV, Keefe G, Culbreath K, Morrow KA, Ehret DEY, Soll RF, Horbar JD, Harting MT, Lally KP, Modi BP, Jaksic T, Edwards EM. Predictors of Mortality in Very Low Birth Weight Neonates With Congenital Diaphragmatic Hernia. J Pediatr Surg 2024; 59:818-824. [PMID: 38368194 DOI: 10.1016/j.jpedsurg.2024.01.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 01/22/2024] [Indexed: 02/19/2024]
Abstract
BACKGROUND Limited data exists regarding the mortality of very low birth weight (VLBW) neonates with congenital diaphragmatic hernia (CDH). This study aims to quantify and determine predictors of mortality in VLBW neonates with CDH. METHODS This analysis of 829 U.S. NICUs included VLBW [birth weight ≤1500g] neonates, born 2011-2021 with and without CDH. The primary outcome was in-hospital mortality. A generalized estimating equation regression model determined the adjusted risk ratio (ARR) of mortality. RESULTS Of 426,140 VLBW neonates, 535 had CDH. In neonates with CDH, 48.4% had an additional congenital anomaly vs 5.5% without. In-hospital mortality for neonates with CDH was 70.4% vs 12.6% without. Of those with CDH, 73.3% died by day of life 3. Of VLBW neonates with CDH, 38% were repaired. A subgroup analysis was performed on 60% of VLBW neonates who underwent delivery room intubation or mechanical ventilation, as an indicator of active treatment. Mortality in this group was 62.7% for neonates with CDH vs 16.4% without. Higher Apgars at 1 min and repair of CDH were associated with lower mortality (ARR 0.91; 95%CI 0.87,0.96 and ARR 0.28; 0.21,0.39). The presence of additional congenital anomalies was associated with higher mortality (ARR 1.14; 1.01,1.30). CONCLUSION These benchmark data reveal that VLBW neonates with CDH have an extremely high mortality. Almost half of the cohort have an additional congenital anomaly which significantly increases the risk of death. This study may be utilized by providers and families to better understand the guarded prognosis of VLBW neonates with CDH. TYPE OF STUDY Level II. LEVEL OF EVIDENCE Level II.
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Affiliation(s)
- Emily Nes
- Boston Children's Hospital, Department of Surgery, Boston, MA, USA
| | - Priyanka V Chugh
- Boston Children's Hospital, Department of Surgery, Boston, MA, USA
| | - Gregory Keefe
- Boston Children's Hospital, Department of Surgery, Boston, MA, USA
| | | | | | - Danielle E Y Ehret
- Vermont Oxford Network, Burlington, VT, USA; University of Vermont Larner College of Medicine and University of Vermont Medical Center, Burlington, VT, USA
| | - Roger F Soll
- Vermont Oxford Network, Burlington, VT, USA; University of Vermont Larner College of Medicine and University of Vermont Medical Center, Burlington, VT, USA
| | - Jeffrey D Horbar
- Vermont Oxford Network, Burlington, VT, USA; University of Vermont Larner College of Medicine and University of Vermont Medical Center, Burlington, VT, USA
| | - Matthew T Harting
- McGovern Medical School at UTHealth and Children's Memorial Hermann Hospital Houston, Congenital Diaphragmatic Hernia Study Group, Houston, TX, USA
| | - Kevin P Lally
- McGovern Medical School at UTHealth and Children's Memorial Hermann Hospital Houston, Congenital Diaphragmatic Hernia Study Group, Houston, TX, USA
| | - Biren P Modi
- Boston Children's Hospital, Department of Surgery, Boston, MA, USA
| | - Tom Jaksic
- Boston Children's Hospital, Department of Surgery, Boston, MA, USA
| | - Erika M Edwards
- Vermont Oxford Network, Burlington, VT, USA; University of Vermont Larner College of Medicine and University of Vermont Medical Center, Burlington, VT, USA; University of Vermont, Department of Mathematics and Statistics, Burlington, VT, USA.
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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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