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Montealegre-Pomar A, Charpak N, Lince-Rivera C. Theophylline impact on weaning in oxygen-dependent infants followed in an outpatient Kangaroo Program. Front Pediatr 2024; 12:1344291. [PMID: 39228440 PMCID: PMC11368859 DOI: 10.3389/fped.2024.1344291] [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: 11/25/2023] [Accepted: 07/31/2024] [Indexed: 09/05/2024] Open
Abstract
Background Theophylline was an orally administered xanthine used for treatment of apnea of prematurity and Bronchopulmonary Dysplasia in ambulatory follow-up of Low-Birth-Weight infants (LBWI) with oxygen-dependency in the outpatient Kangaroo Mother Care Program (KMCP). Theophylline's main metabolic product is caffeine; therefore, it was an alternative due to the frequent lack of ambulatory oral caffeine in low and middle-income countries. Objective To assess the effectiveness of oral theophylline in decreasing days with oxygen and to describe frequency of adverse related events. Methods Quasi-experiment before and after withdrawal of theophylline given systematically to LBWI with ambulatory oxygen in two KMCPs. Results 729 patients were recruited; period 1: 319 infants when theophylline was given routinely and period 2: 410 infants when theophylline was no longer used. The theophylline cohort had less gestational age, less weight at birth, more days in Neonatal Intensive Care Unit, more days of oxygen-dependency at KMCP admission, and more frequencies of Intrauterine Growth Restriction and apneas. After adjusting with propensity score matching, multiple linear regression showed that nutrition was associated with days of oxygen-dependency, but theophylline treatment not. No differences were found in frequencies of readmissions up to 40 weeks, intraventricular hemorrhage or neurodevelopmental problems. Participants in period 2 had more tachycardia episodes. Conclusions We did not find association between oral theophylline treatment and the reduction of days with ambulatory oxygen. For the current management of oxygen-dependency in LBW infants, the importance of nutrition based on exclusive breast feeding whenever possible, is the challenge.
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Affiliation(s)
- Adriana Montealegre-Pomar
- Research and Projects Department, Kangaroo Foundation, Bogotá, Colombia
- Pediatrics Department, Pontifical Javeriana University, Bogotá, Colombia
- Pediatrics Department, San Ignacio University Hospital, Bogotá, Colombia
| | - Nathalie Charpak
- Research and Projects Department, Kangaroo Foundation, Bogotá, Colombia
| | - Catalina Lince-Rivera
- Research and Projects Department, Kangaroo Foundation, Bogotá, Colombia
- Pediatrics Department, San Ignacio University Hospital, Bogotá, Colombia
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2
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Mukthapuram S, Donaher A, Higano NS, Rowe JA, Tkach JA, Woods JC, Kingma PS. Magnetic Resonance Imaging Assessment of Pulmonary Vascularity in Preterm Infants with Bronchopulmonary Dysplasia. Neonatology 2024:1-8. [PMID: 39074457 DOI: 10.1159/000539545] [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: 12/15/2023] [Accepted: 05/24/2024] [Indexed: 07/31/2024]
Abstract
INTRODUCTION Pulmonary hypertension often complicates bronchopulmonary dysplasia (BPD) and infants with BPD plus pulmonary hypertension experience higher mortality rates. Current methods to evaluate pulmonary hypertension fail to evaluate the primary cause of this disease. We hypothesize that preterm infants with BPD experience altered pulmonary vascular growth and that magnetic resonance imaging (MRI) can be used to assess vascularity in BPD. METHODS In this observational cohort study, preterm infants with BPD (n = 33) and controls (n = 6) received a postnatal chest MRI that included a 2-dimensional time-of-flight acquisition. Semi-automatic segmentation was performed to measure vascularity parameters including vascular volume and density (vascular density = vascular volume/lung volume). RESULTS Vascular volume on MRI increases with post-menstrual age (877.2 mm3/week); however, the vascular density does not significantly change. Vascular volume is higher in infants with more severe BPD (p < 0.002), but vascular density did not significantly change when comparing mild, moderate, and severe BPD. Vascular density in infants with severe BPD requiring tracheostomy trended lower when compared to infants not requiring tracheostomy (0.18 mm3/mm3 vs. 0.27 mm3/mm3, p = 0.06). Vascular density increases with increasing days of inhaled nitric oxide (iNO) therapy in infants with severe BPD (0.02 mm3/mm3/week of iNO, rho = +0.56, p = 0.03). CONCLUSION Neonatal MRI can be used to assess pulmonary vascularity in preterm infants with BPD. Infants with BPD experience altered vascular growth and while higher vascular volume is associated with more severe BPD, lower vascular density trends toward worse clinical outcomes. Vascular density increases with iNO therapy in severe BPD.
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Affiliation(s)
- Shanmukha Mukthapuram
- The Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Cincinnati Bronchopulmonary Dysplasia Center, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Addison Donaher
- The Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Nara S Higano
- Cincinnati Bronchopulmonary Dysplasia Center, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
- Center for Pulmonary Imaging Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - James A Rowe
- The Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Cincinnati Bronchopulmonary Dysplasia Center, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jean A Tkach
- Center for Pulmonary Imaging Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Jason C Woods
- Cincinnati Bronchopulmonary Dysplasia Center, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
- Center for Pulmonary Imaging Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Paul S Kingma
- The Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Cincinnati Bronchopulmonary Dysplasia Center, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
- Center for Pulmonary Imaging Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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3
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Förster K, Marchi H, Stöcklein S, Dietrich O, Ehrhardt H, Wielpütz MO, Flemmer AW, Schubert B, Mall MA, Ertl-Wagner B, Hilgendorff A. Magnetic resonance imaging-based scoring of the diseased lung in the preterm infant with bronchopulmonary dysplasia: UNiforme Scoring of the disEAsed Lung in BPD (UNSEAL BPD). Am J Physiol Lung Cell Mol Physiol 2023; 324:L114-L122. [PMID: 36410026 DOI: 10.1152/ajplung.00430.2021] [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: 11/23/2022] Open
Abstract
Neonatal chronic lung disease lacks standardized assessment of lung structural changes. We addressed this clinical need by the development of a novel scoring system [UNSEAL BPD (UNiforme Scoring of the disEAsed Lung in BPD)] using T2-weighted single-shot fast-spin-echo sequences from 3 T MRI in very premature infants with and without bronchopulmonary dysplasia (BPD). Quantification of interstitial and airway remodeling, emphysematous changes, and ventilation inhomogeneity was achieved by consensus scoring on a five-point Likert scale. We successfully identified moderate and severe disease by logistic regression [area under the curve (AUC), 0.89] complemented by classification tree analysis revealing gestational age-specific structural changes. We demonstrated substantial interreader reproducibility (weighted Cohen's κ 0.69) and disease specificity (AUC = 0.91). Our novel MRI score enables the standardized assessment of disease-characteristic structural changes in the preterm lung exhibiting significant potential as a quantifiable endpoint in early intervention clinical trials and long-term disease monitoring.
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Affiliation(s)
- Kai Förster
- Division of Neonatology, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany.,Institute for Lung Biology and Disease and Comprehensive Pneumology Center (CPC), Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Hannah Marchi
- Institute of Computational Biology, Helmholtz Zentrum München, Munich, Germany.,Chair of Data Science, Faculty of Business Administration and Economics, Bielefeld University, Bielefeld, Germany
| | - Sophia Stöcklein
- Department of Radiology, University Hospital, LMU Munich, Munich, Germany
| | - Olaf Dietrich
- Department of Radiology, University Hospital, LMU Munich, Munich, Germany
| | - Harald Ehrhardt
- Department of General Pediatrics & Neonatology, Justus-Liebig-University, Member of the German Center for Lung Research (DZL), Giessen, Germany
| | - Mark O Wielpütz
- Department of Diagnostic and Interventional Radiology, University of Heidelberg, Heidelberg, Germany.,Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany
| | - Andreas W Flemmer
- Division of Neonatology, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
| | - Benjamin Schubert
- Institute of Computational Biology, Helmholtz Zentrum München, Munich, Germany.,Department of Mathematics, Technische Universität München, Garching bei München, Germany
| | - Marcus A Mall
- Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany.,Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany.,German Center for Lung Research (DZL), associated partner site, Berlin, Germany
| | - Birgit Ertl-Wagner
- Department of Medical Imaging, The Hospital for Sick Children, The University of Toronto, Toronto, Ontario, Canada
| | - Anne Hilgendorff
- Division of Neonatology, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany.,Institute for Lung Biology and Disease and Comprehensive Pneumology Center (CPC), Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany.,Center for Comprehensive Developmental Care (CDeCLMU), Social Pediatric Center (iSPZ), Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
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Röntgenuntersuchungen des Thorax bei Kindern und Jugendlichen. ZEITSCHRIFT FÜR PNEUMOLOGIE 2022. [PMCID: PMC9364308 DOI: 10.1007/s10405-022-00466-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Klinisches Problem Die Röntgenaufnahme des Thorax ist die häufigste konventionelle Röntgenuntersuchung im Kindes- und Jugendalter. Das Ziel dieser Übersichtsarbeit ist es, den Benefit der Röntgenmodalität, aber auch ihre Limitationen darzulegen. Methode Neugeborene erhalten verglichen mit älteren Kindern proportional die häufigsten Röntgenaufnahmen des Thorax. Nach der Neugeborenenperiode setzt diese Übersichtsarbeit einen Fokus auf die Diagnostik entzündlicher Lungenveränderungen, die Fremdkörperaspiration, die Detektion von Rundherden und die zystische Fibrose. Methodische Innovationen Aufgrund verbesserter Technologien sinkt die Strahlenexposition konventioneller Thoraxaufnahmen kontinuierlich. Jedoch werden die anderen Bildgebungsmodalitäten ebenfalls stetig optimiert, so dass insbesondere die strahlungsfreien Alternativen Magnetresonanztomographie (MRT) und Sonographie bei Vorliegen einer bestimmten klinischen Fragestellung in Erwägung gezogen werden sollen. Empfehlung für die Praxis Auch wenn die diagnostische Aussagekraft von Röntgen-Thorax-Aufnahmen häufig geringer als von Computertomographie (CT) oder MRT ist, hat sie weiterhin aufgrund ihrer ubiquitären Verfügbarkeit und der relativ einfachen Durchführbarkeit einen hohen Stellenwert im Kindes- und Jugendalter.
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5
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Di Filippo P, Dodi G, Ciarelli F, Di Pillo S, Chiarelli F, Attanasi M. Lifelong Lung Sequelae of Prematurity. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:5273. [PMID: 35564667 PMCID: PMC9104309 DOI: 10.3390/ijerph19095273] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 04/22/2022] [Accepted: 04/24/2022] [Indexed: 11/29/2022]
Abstract
The clinical, functional, and structural pattern of chronic lung disease of prematurity has changed enormously in last years, mirroring a better perinatal management and an increasing lung immaturity with the survival of increasingly premature infants. Respiratory symptoms and lung function impairment related to prematurity seem to improve over time, but premature birth increases the likelihood of lung function impairment in late childhood, predisposing to chronic obstructive pulmonary disease (COPD). It is mandatory to identify those individuals born premature who are at risk for developing long-term lung disease through a better awareness of physicians, the use of standardized CT imaging scores, and a more comprehensive periodic lung function evaluation. The aim of this narrative review was to provide a systematic approach to lifelong respiratory symptoms, lung function impairment, and lung structural anomalies in order to better understand the specific role of prematurity on lung health.
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Affiliation(s)
- Paola Di Filippo
- Pediatric Allergy and Pulmonology Unit, Department of Pediatrics, University of Chieti-Pescara, 66100 Chieti, Italy; (G.D.); (F.C.); (S.D.P.); (F.C.); (M.A.)
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6
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Endotypes of Prematurity and Phenotypes of Bronchopulmonary Dysplasia: Toward Personalized Neonatology. J Pers Med 2022; 12:jpm12050687. [PMID: 35629108 PMCID: PMC9143617 DOI: 10.3390/jpm12050687] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/15/2022] [Accepted: 04/18/2022] [Indexed: 11/16/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD), the chronic lung disease of prematurity, is increasingly recognized as the consequence of a pathological reparative response of the developing lung to both antenatal and postnatal injury. According to this view, the pathogenesis of BPD is multifactorial and heterogeneous with different patterns of antenatal stress (endotypes) that combine with varying postnatal insults and might distinctively damage the development of airways, lung parenchyma, interstitium, lymphatic system, and pulmonary vasculature. This results in different clinical phenotypes of BPD. There is no clear consensus on which are the endotypes of prematurity but the combination of clinical information with placental and bacteriological data enables the identification of two main pathways leading to birth before 32 weeks of gestation: (1) infection/inflammation and (2) dysfunctional placentation. Regarding BPD phenotypes, the following have been proposed: parenchymal, peripheral airway, central airway, interstitial, congestive, vascular, and mixed phenotype. In line with the approach of personalized medicine, endotyping prematurity and phenotyping BPD will facilitate the design of more targeted therapeutic and prognostic approaches.
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7
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Zanette B, Schrauben EM, Munidasa S, Goolaub DS, Singh A, Coblentz A, Stirrat E, Couch MJ, Grimm R, Voskrebenzev A, Vogel-Claussen J, Seethamraju RT, Macgowan CK, Greer MLC, Tam EWY, Santyr G. Clinical Feasibility of Structural and Functional MRI in Free-Breathing Neonates and Infants. J Magn Reson Imaging 2022; 55:1696-1707. [PMID: 35312203 DOI: 10.1002/jmri.28165] [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: 08/19/2020] [Revised: 03/08/2022] [Accepted: 03/09/2022] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Evaluation of structural lung abnormalities with magnetic resonance imaging (MRI) has previously been shown to be predictive of clinical neonatal outcomes in preterm birth. MRI during free-breathing with phase-resolved functional lung (PREFUL) may allow for complimentary functional information without exogenous contrast. PURPOSE To investigate the feasibility of structural and functional pulmonary MRI in a cohort of neonates and infants with no cardiorespiratory disease. Macrovascular pulmonary blood flows were also evaluated. STUDY TYPE Prospective. POPULATION Ten term infants with no clinically defined cardiorespiratory disease were imaged. Infants recruited from the general population and neonatal intensive care unit (NICU) were studied. FIELD STRENGTH/SEQUENCE T1 -weighted VIBE, T2 -weighted BLADE uncorrected for motion. Ultrashort echo time (UTE) and 3D-flow data were acquired during free-breathing with self-navigation and retrospective reconstruction. Single slice 2D-gradient echo (GRE) images were acquired during free-breathing for PREFUL analysis. Imaging was performed at 3 T. ASSESSMENT T1 , T2 , and UTE images were scored according to the modified Ochiai scheme by three pediatric body radiologists. Ventilation/perfusion-weighted maps were extracted from free-breathing GRE images using PREFUL analysis. Ventilation and perfusion defect percent (VDP, QDP) were calculated from the segmented ventilation and perfusion-weighted maps. Time-averaged cardiac blood velocities from three-dimensional-flow were evaluated in major pulmonary arteries and veins. STATISTICAL TEST Intraclass correlation coefficient (ICC). RESULTS The ICC of replicate structural scores was 0.81 (95% CI: 0.45-0.95) across three observers. Elevated Ochiai scores, VDP, and QDP were observed in two NICU participants. Excluding these participants, mean ± standard deviation structural scores were 1.2 ± 0.8, while VDP and QDP were 1.0% ± 1.1% and 0.4% ± 0.5%, respectively. Main pulmonary arterial blood flows normalized to body surface area were 3.15 ± 0.78 L/min/m2 . DATA CONCLUSION Structural and functional pulmonary imaging is feasible using standard clinical MRI hardware (commercial whole-body 3 T scanner, table spine array, and flexible thoracic array) in free-breathing infants. EVIDENCE LEVEL 2 TECHNICAL EFFICACY: Stage 1.
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Affiliation(s)
- Brandon Zanette
- Translational Medicine, The Hospital for Sick Children, Toronto, Canada
| | - Eric M Schrauben
- Translational Medicine, The Hospital for Sick Children, Toronto, Canada
| | - Samal Munidasa
- Translational Medicine, The Hospital for Sick Children, Toronto, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | - Datta S Goolaub
- Translational Medicine, The Hospital for Sick Children, Toronto, Canada
| | - Anuradha Singh
- Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Canada
| | - Ailish Coblentz
- Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Canada.,Department of Medical Imaging, University of Toronto, Toronto, Canada
| | - Elaine Stirrat
- Translational Medicine, The Hospital for Sick Children, Toronto, Canada
| | - Marcus J Couch
- Translational Medicine, The Hospital for Sick Children, Toronto, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | - Robert Grimm
- MR Application Predevelopment, Siemens Healthcare, Erlangen, Germany
| | - Andreas Voskrebenzev
- Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany.,Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Jens Vogel-Claussen
- Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany.,Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | | | - Christopher K Macgowan
- Translational Medicine, The Hospital for Sick Children, Toronto, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | - Mary-Louise C Greer
- Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Canada.,Department of Medical Imaging, University of Toronto, Toronto, Canada
| | - Emily W Y Tam
- Neurosciences and Mental Health, The Hospital for Sick Children, Toronto, Canada.,Department of Paediatrics, The Hospital for Sick Children, Toronto, Canada
| | - Giles Santyr
- Translational Medicine, The Hospital for Sick Children, Toronto, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, Canada
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8
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Renz DM, Huisinga C, Pfeil A, Böttcher J, Schwerk N, Streitparth F, Weidemann J. [Chest X-rays in children and adolescents : Indications and limitations]. Radiologe 2022; 62:140-148. [PMID: 35041027 PMCID: PMC8764643 DOI: 10.1007/s00117-021-00954-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2021] [Indexed: 11/15/2022]
Abstract
CLINICAL ISSUE Chest X‑ray is the most commonly performed X‑ray examination in children and adolescents. The aim of this review is to present the benefit of this radiologic modality, but also its limitations. METHODS Compared with older children, most X‑ray examinations of the chest were performed in newborns. After the neonatal period, this review focusses on the diagnosis of inflammatory pulmonary changes, foreign body aspiration, detection of pulmonary nodules, and cystic fibrosis. METHODOLOGICAL INNOVATIONS The radiation exposure of X‑ray examinations is continuously decreasing due to technical innovations. However, other imaging modalities were also continuously being optimized; therefore, alternatives without radiation exposure, i.e., magnetic resonance imaging [MRI] and ultrasound, should be considered in case of specific clinical indications. PRACTICAL RECOMMENDATION Even if the diagnostic performance of chest X‑ray examinations is often minor compared to computed tomography or MRI, chest X‑ray still has a high value in children and adolescents, due to its ubiquitous availability and the relatively simple acquisition.
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Affiliation(s)
- Diane Miriam Renz
- Institut für Diagnostische und Interventionelle Radiologie, Arbeitsbereich Kinderradiologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland.
| | - Carolin Huisinga
- Institut für Diagnostische und Interventionelle Radiologie, Arbeitsbereich Kinderradiologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland
| | - Alexander Pfeil
- Klinik für Innere Medizin III, Universitätsklinikum Jena, Jena, Deutschland
| | | | - Nicolaus Schwerk
- Klinik für Pädiatrische Pneumologie, Allergologie und Intensivmedizin, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - Florian Streitparth
- Klinikum der Universität München, Klinik und Poliklinik für Radiologie, Ludwig-Maximilians-Universität, München, Deutschland
| | - Jürgen Weidemann
- Abteilung für Radiologie und Sonographie, Kinderkrankenhaus auf der Bult Hannover, Hannover, Deutschland
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9
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Yao Q, Shen QL, Huang GY, Hu XH. Relationship between bronchopulmonary dysplasia phenotypes with high-resolution computed tomography score in early preterm infants. Front Pediatr 2022; 10:935733. [PMID: 36204662 PMCID: PMC9530466 DOI: 10.3389/fped.2022.935733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 08/15/2022] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE To assess the relationship between high-resolution computed tomography (HRCT) abnormalities and clinical phenotypes of bronchopulmonary dysplasia (BPD). METHODS A retrospective, single-center study was carried out at the Children's Hospital of Fudan University between 2013 and 2020. Preterm infants born at ≤ 32 weeks' gestation who were diagnosed with BPD and had HRCT between 40 and 50 weeks postmenstrual age (PMA)were included in the study. HRCT images from six pulmonary lobes were scored based on seven types of pulmonary lesions from two categories: hyperaeration lesions and parenchymal lesions. The hyperaeration score (HS) included scores of decreased attenuation, mosaic attenuation, and bulla/bleb, while the parenchymal score (PS) included those of linear lesion, consolidation, bronchial wall thickening, and bronchiectasis. All seven scores were summed up to create the total score (TS). One-way ANOVA testing or Kruskal-Wallis testing was adopted for the comparison of HRCT scores with BPD severity and clinical phenotypes. The correlation between HRCT scores and clinical phenotypes was evaluated by Spearman's correlation analysis. RESULTS A total of 81 cases were included in the study. Cases with more severe BPD had a higher TS (p = 0.01), HS (p = 0.02), PS (p = 0.02), mosaic attenuation score (p = 0.03), bulla/Bleb score (p = 0.03), and linear density score (p = 0.01). TS (r = 0.28), PS (r = 0.35), linear density (r = 0.34), and consolidation (r = 0.24) were correlated with pulmonary hypertension (PH). However, no HRCT score was significantly different between the patients with or without tracheobronchomalacia (TBM). BPD patients with a combination of lung parenchymal disease, PH, and TBM had the highest TS and HS. CONCLUSION HRCT scores correlated with BPD severity and PH in our study. HS might be a useful tool in the assessment of BPD severity while linear densities and consolidation might be helpful in predicting PH.
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Affiliation(s)
- Qiong Yao
- Department of Radiology, Children's Hospital of Fudan University, Shanghai, China
| | - Quan-Li Shen
- Department of Radiology, Children's Hospital of Fudan University, Shanghai, China
| | - Guo-Ying Huang
- Cardiac Center, Children's Hospital of Fudan University, Shanghai, China
| | - Xi-Hong Hu
- Department of Radiology, Children's Hospital of Fudan University, Shanghai, China
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10
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Panaviene J, Pacheco A, Schwarz CE, Grygoryev K, Andersson-Engels S, Dempsey EM. Gas in scattering media absorption spectroscopy as a potential tool in neonatal respiratory care. Pediatr Res 2022; 92:1240-1246. [PMID: 35606473 PMCID: PMC9700509 DOI: 10.1038/s41390-022-02110-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 04/06/2022] [Accepted: 04/25/2022] [Indexed: 12/12/2022]
Abstract
Gas in scattering media absorption spectroscopy (GASMAS) is a novel optical technology employing near-infrared light. It has a potential use in the medical setting as a monitoring and diagnostic tool by detecting molecular oxygen within gas pockets and thus may be a useful adjunct in respiratory monitoring. GASMAS has potential advantages over other monitoring devices currently used in clinical practice. It is a non-invasive, continuous, non-ionising technology and provides unique information about molecular oxygen content inside the lungs. GASMAS may have a future role in optimising respiratory management of neonates in different clinical scenarios such as monitoring cardiorespiratory transition in the delivery room, assessing surfactant deficiency, and optimising endotracheal tube positioning. This article aims to summarise current evidence exploring GASMAS application in a neonate, discuss possible clinical benefits, and compare with other devices that are currently used in neonatal care. IMPACT: This article presents a novel optical technique to measure lung oxygen concentrations that may have important clinical uses. This review summarises the current literature investigating the concept of optical lung oxygen measurement. Information from this review can guide researchers in future studies.
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Affiliation(s)
- Jurate Panaviene
- INFANT Research Centre, University College Cork, Cork, Ireland. .,Department of Neonatology, Cork University Maternity Hospital, Cork, Ireland. .,Department of Paediatrics and Child Health, University College Cork, Cork, Ireland.
| | - Andrea Pacheco
- grid.7872.a0000000123318773Biophotonics@Tyndall, Irish Photonic Integration Centre, Tyndall National Institute, University College Cork Lee Maltings, Dyke Parade, Cork, Ireland ,grid.7872.a0000000123318773Department of Physics, University College Cork, Cork, Ireland
| | - Christoph E. Schwarz
- grid.7872.a0000000123318773INFANT Research Centre, University College Cork, Cork, Ireland ,grid.7872.a0000000123318773Department of Paediatrics and Child Health, University College Cork, Cork, Ireland ,grid.488549.cDepartment of Neonatology, University Children’s Hospital, Tübingen, Germany
| | - Konstantin Grygoryev
- grid.7872.a0000000123318773Biophotonics@Tyndall, Irish Photonic Integration Centre, Tyndall National Institute, University College Cork Lee Maltings, Dyke Parade, Cork, Ireland
| | - Stefan Andersson-Engels
- grid.7872.a0000000123318773Biophotonics@Tyndall, Irish Photonic Integration Centre, Tyndall National Institute, University College Cork Lee Maltings, Dyke Parade, Cork, Ireland ,grid.7872.a0000000123318773Department of Physics, University College Cork, Cork, Ireland
| | - Eugene M. Dempsey
- grid.7872.a0000000123318773INFANT Research Centre, University College Cork, Cork, Ireland ,grid.411916.a0000 0004 0617 6269Department of Neonatology, Cork University Maternity Hospital, Cork, Ireland ,grid.7872.a0000000123318773Department of Paediatrics and Child Health, University College Cork, Cork, Ireland
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11
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Abstract
Childhood interstitial lung disease (ChILD) is an umbrella term encompassing a diverse group of diffuse lung diseases affecting infants and children. Although the timely and accurate diagnosis of ChILD is often challenging, it is optimally achieved through the multidisciplinary integration of imaging findings with clinical data, genetics, and potentially lung biopsy. This article reviews the definition and classification of ChILD; the role of imaging, pathology, and genetics in ChILD diagnosis; treatment options; and future goals. In addition, a practical approach to ChILD imaging based on the latest available research and the characteristic imaging appearance of ChILD entities are presented.
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12
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Wielpütz MO. Commentary: Expert Opinion to "Imaging Bronchopulmonary Dysplasia-A Multimodality Update". Front Med (Lausanne) 2021; 8:737724. [PMID: 34746176 PMCID: PMC8566914 DOI: 10.3389/fmed.2021.737724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 09/23/2021] [Indexed: 11/29/2022] Open
Affiliation(s)
- Mark O Wielpütz
- Translational Lung Research Center (TLRC), German Center for Lung Research (DZL), University of Heidelberg, Heidelberg, Germany.,Department of Diagnostic and Interventional Radiology, University of Heidelberg, Heidelberg, Germany.,Department of Diagnostic and Interventional Radiology With Nuclear Medicine, Thoraxklinik at University of Heidelberg, Heidelberg, Germany
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13
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Moschino L, Bonadies L, Baraldi E. Lung growth and pulmonary function after prematurity and bronchopulmonary dysplasia. Pediatr Pulmonol 2021; 56:3499-3508. [PMID: 33729686 PMCID: PMC8597033 DOI: 10.1002/ppul.25380] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/23/2021] [Accepted: 03/10/2021] [Indexed: 12/19/2022]
Abstract
Bronchopulmonary dysplasia (BPD) still carries a heavy burden of morbidity and mortality in survivors of extreme prematurity. The disease is characterized by simplification of the alveolar structure, involving a smaller number of enlarged alveoli due to decreased septation and a dysmorphic pulmonary microvessel growth. These changes lead to persistent abnormalities mainly affecting the smaller airways, lung parenchyma, and pulmonary vasculature, which can be assessed with lung function tests and imaging techniques. Several longitudinal lung function studies have demonstrated that most preterm-born subjects with BPD embark on a low lung function trajectory, never achieving their full airway growth potential. They are consequently at higher risk of developing a chronic obstructive pulmonary disease-like phenotype later in life. Studies based on computer tomography and magnetic resonance imaging, have also shown that in these patients there is a persistence of lung abnormalities like emphysematous areas, bronchial wall thickening, interstitial opacities, and mosaic lung attenuation also in adult age. This review aims to outline the current knowledge of pulmonary and vascular growth in survivors of BPD and the evidence of their lung function and imaging up to adulthood.
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Affiliation(s)
- Laura Moschino
- Department of Women's and Children's Health, Neonatal Intensive Care Unit, Padova University Hospital, Padova, Italy
| | - Luca Bonadies
- Department of Women's and Children's Health, Neonatal Intensive Care Unit, Padova University Hospital, Padova, Italy
| | - Eugenio Baraldi
- Department of Women's and Children's Health, Neonatal Intensive Care Unit, Padova University Hospital, Padova, Italy.,Institute of Pediatric Research (IRP), Fondazione Città della Speranza, Padova, Italy
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14
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Lung Ultrasonography to Diagnose Bronchopulmonary Dysplasia of Premature Infants. IRANIAN JOURNAL OF PEDIATRICS 2021. [DOI: 10.5812/ijp.109598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Background: Bronchopulmonary dysplasia (BPD) is a common severe respiratory problem in premature infants, and imaging information has important reference value for its diagnosis. Recently, lung ultrasonography (LUS) has been successfully used for the diagnosis and differential diagnosis of neonatal lung diseases (NLDs), but the study of the diagnosis of BPD is still rare. Objectives: The purpose of this study was to investigate the ultrasonographic characteristics of BPD and its value for the diagnosis and differential diagnosis of premature infants’ BPD. Methods: From January 2015 to December 2019, 25 premature infants diagnosed with early-stage BPD and 32 infants diagnosed with late-stage BPD according to their medical history, clinical manifestation, and chest X-ray were included in this study. The LUS examinations were performed on each infant. The LUS findings were recorded and compared with those of 40 premature infants without lung diseases. Results: The gestational age of 25 early-stage BPD infants was 26+1 – 31+6 weeks, and their birth weight was between 730 and 1,810 g. The gestational age of 32 late-stage BPD infants was 26 - 32 weeks, and their birth weight was 750 - 1,760 g. The gestational age of 40 control infants was 25+6 - 32+1 weeks, and their birth weight was 810 - 2,050 g. There was no difference in the proportion of primary lung diseases (including RDS, TTN, pneumonia, etc.) between the three groups. The proportions of infants receiving invasive and/or non-invasive respiratory support at admission in the three groups of early BPD, late BPD, and normal control were 20/25 (80.0%), 26/32 (81.2%), and 33/40 (77.5%), respectively, with no significant difference (P > 0.05). The mechanical ventilation duration over one week in three groups was 15/20 (75%), 21/26 (80.7%), and 24/33 (72.7%), respectively, with no significant difference (P > 0.05). Nonspecific pleural line abnormalities were seen in all early and late BPD patients (100%), alveolar-interstitial syndrome (AIS) in 16 cases (64%) of early BPD and 32 cases of late BPD infants (100%), pleural insect erosion-like change (PIE-like change) in two cases of early-stage BPD infants (8.0%) and 20 cases (62.5%) of late-stage BPD infants, and air vesicle signs (AVS) only in 17 cases of late-stage BPD infants. The sensitivity and specificity of PIE-like change for the diagnosis of late-stage BPD were 62.5% and 92.0%, respectively, and the sensitivity and specificity of AVS for the diagnosis of late-stage BPD were 53.1 and 100%, respectively. Conclusions: Lung ultrasonography is not specific for the diagnosis of early-stage BPD, but has a high reference value and specificity for the diagnosis of late-stage BPD when combined with obvious pulmonary fibrosis and pulmonary vesicle formation, which is mainly manifested by AIS, PIE-like change, and AVS.
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15
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Sun YH, Yuan L, Du Y, Zhou JG, Lin SB, Zhang R, Dong Y, Chen C. Characterization of lung ultrasound imaging in preterm infants with bronchopulmonary dysplasia. Clin Hemorheol Microcirc 2021; 80:83-95. [PMID: 33935069 DOI: 10.3233/ch-211132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Lung ultrasound (LUS) is a bedside technique that can be used on diagnosis and follow-up of neonatal respiratory diseases. However, there are rare reports on the ultrasound features of bronchopulmonary dysplasia (BPD) which is one of the most common chronic lung diseases in preterm infants. OBJECTIVE To describe the ultrasound features of different BPD levels, and to investigate the value of ultrasound in evaluating moderate-to-severe BPD. METHODS In this prospective cohort study, newborns of less than 37 weeks' gestational age in neonatal intensive care unit (NICU) were included. The LUS characteristics including pleural line, alveolar-interstitial syndrome (AIS), retrodiaphragmatic hyperechogenicity and diaphragmatic morphology were observed and recorded. The reliability of LUS in evaluating moderate and severe BPD were compared and calculated. RESULTS A total of 108 infants were enrolled in our study: 39, 24, 29, 16 infants had non, mild, moderate and severe BPD. The median(IQR) pleura thickness in the moderate-to-severe BPD group was 1.7(1.6-1.85) mm, which was thicker than that in the none-to-mild BPD infants (P < 0.001), meanwhile the proportions of rough pleural lines, diffuse AIS, retrodiaphragmatic hyperechogenicity, small cysts above the diaphragm and rough diaphragm in the moderate-to-severe BPD group were also higher than those in none-to-mild BPD group (86.7% vs 36.5, 57.8% vs 7.9%, 37.8% vs 0, 33.3% vs 0, P < 0.001). In evaluating moderate-to-severe BPD, rough pleura had 91.1% (95% confidence interval [CI]: 0.793-0.965) in sensitivity, 91.3% (95% CI: 0.797-0.966) in negative predictive value (NPV), and 66.7% (95% CI: 0.544-0.771) in specificity. Small cysts had 100% (95% CI: 0.941-1) in specificity, 100% (95% CI: 0.816-1) in PPV, and 37.8% in sensitivity (95% CI: 0.251-0.524). Rough diaphragm had 100% (95% CI: 0.943-1) in sensitivity, 100% (95% CI: 0.796-1) in PPV and 33.3% (95% CI: 0.211-0.478) in specificity. CONCLUSIONS Depending on its unique advantages such as convenient, no radiation and repeatable, LUS is a valuable imaging method in assessing the severity of BPD, especially in moderate and severe BPD.
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Affiliation(s)
- Ying-Hua Sun
- Department of Ultrasound, Children's Hospital of Fudan University, Shanghai, China.,Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Lin Yuan
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Yang Du
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Jian-Guo Zhou
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Sam Bill Lin
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Rong Zhang
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Yi Dong
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chao Chen
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
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16
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Aldecoa-Bilbao V, Velilla M, Teresa-Palacio M, Esponera CB, Barbero AH, Sin-Soler M, Sanz MI, Salvia Roigés MD. Lung Ultrasound in Bronchopulmonary Dysplasia: Patterns and Predictors in Very Preterm Infants. Neonatology 2021; 118:537-545. [PMID: 34515177 DOI: 10.1159/000517585] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 06/03/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Lung ultrasound (LUS) is useful for respiratory management in very preterm infants (VPI), but little is known about the echographic patterns in bronchopulmonary dysplasia (BPD), the relation between the image findings, and the severity of the disease and its long-term outcomes. We aimed to describe LUS patterns in BPD and analyze the accuracy of LUS to predict the need for respiratory support at 36 weeks postmenstrual age (PMA) in VPI. METHODS Preterm infants ≤30.6 weeks of gestational age were recruited. LUS was performed at admission, at 7th, and 28th day of life (DOL) with a standardized protocol (6 zones: anterior, lateral, and posterior fields). Clinical data, respiratory outcomes, and image findings were recorded. RESULTS Eighty-nine patients were studied. Infants with BPD had significantly higher LUS score at admission, at 7th, and 28th DOL. Patients with BPD exhibited more consolidations and pleural line abnormalities at 7th and 28th DOL than those without BPD (p < 0.001), regardless of the definition used for BPD. LUS at 7th DOL predicted NICHD 2001-BPD with R2 = 0.522; AUC = 0.87 (0.79-0.94), p < 0.001, and Jensen 2019-BPD with R2 = 0.315 (AUC = 0.80 [0.70-0.90], p < 0.001). A model including mechanical ventilation >5 days, oxygen therapy for 7 days and LUS score at 7th DOL accurately predicted the need for respiratory support at 36 weeks PMA (R2 = 0.655, p < 0.001) with an AUC = 0.90 (0.84-0.97), p < 0.001. CONCLUSION LUS score, pleural line abnormalities, and consolidations can be useful to diagnose BPD in VPI and to predict its severity after the first week of life.
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Affiliation(s)
- Victoria Aldecoa-Bilbao
- Neonatology Department, Hospital Clínic Barcelona, Barcelona Center for Maternal-Fetal and Neonatal Medicine (BCNatal), Barcelona, Spain
| | - Mar Velilla
- Neonatology Department, Hospital Sant Joan de Déu, Barcelona Center for Maternal-Fetal and Neonatal Medicine (BCNatal), Barcelona, Spain
| | - Marta Teresa-Palacio
- Neonatology Department, Hospital Clínic Barcelona, Barcelona Center for Maternal-Fetal and Neonatal Medicine (BCNatal), Barcelona, Spain
| | - Carla Balcells Esponera
- Neonatology Department, Hospital Sant Joan de Déu, Barcelona Center for Maternal-Fetal and Neonatal Medicine (BCNatal), Barcelona, Spain
| | - Ana Herranz Barbero
- Neonatology Department, Hospital Clínic Barcelona, Barcelona Center for Maternal-Fetal and Neonatal Medicine (BCNatal), Barcelona, Spain
| | - María Sin-Soler
- Faculty of Medicine, University of Barcelona (UB), Barcelona, Spain
| | - Martín Iriondo Sanz
- Neonatology Department, Hospital Sant Joan de Déu, Barcelona Center for Maternal-Fetal and Neonatal Medicine (BCNatal), Barcelona, Spain.,Faculty of Medicine, University of Barcelona (UB), Barcelona, Spain
| | - Maria Dolors Salvia Roigés
- Neonatology Department, Hospital Clínic Barcelona, Barcelona Center for Maternal-Fetal and Neonatal Medicine (BCNatal), Barcelona, Spain
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17
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Wu KY, Jensen EA, White AM, Wang Y, Biko DM, Nilan K, Fraga MV, Mercer-Rosa L, Zhang H, Kirpalani H. Characterization of Disease Phenotype in Very Preterm Infants with Severe Bronchopulmonary Dysplasia. Am J Respir Crit Care Med 2020; 201:1398-1406. [PMID: 31995403 DOI: 10.1164/rccm.201907-1342oc] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Rationale: Bronchopulmonary dysplasia (BPD) is a heterogenous condition with poorly characterized disease subgroups.Objectives: To define the frequency of three disease components: moderate-severe parenchymal disease, pulmonary hypertension (PH), or large airway disease, in a referral cohort of preterm infants with severe BPD. The association between each component and a primary composite outcome of death before hospital discharge, tracheostomy, or home pulmonary vasodilator therapy was assessed.Methods: This was a retrospective, single-center cohort study of infants born at <32 weeks' gestation with severe BPD who underwent both chest computed tomography with angiography (CTA) and echocardiography between 40 and 50 weeks postmenstrual age between 2011 and 2015. Moderate-severe parenchymal lung disease was defined as an Ochiai score ≥8 on CTA. PH was diagnosed by echocardiogram using standard criteria. Large airway disease was defined as tracheomalacia or bronchomalacia on bronchoscopy and/or tracheoscopy or CTA.Measurements and Main Results: Of 76 evaluated infants, 73 (96%) were classifiable into phenotypic subgroups: 57 with moderate-severe parenchymal disease, 48 with PH, and 44 with large airway disease. The presence of all three disease components was most common (n = 23). Individually, PH and large airway disease, but not moderate-severe parenchymal disease, were associated with increased risk for the primary study outcome. Having more disease components was associated with an incremental increase in the risk for the primary outcome (2 vs. 1: odds ratio, 4.9; 95% confidence interval, 1.4-17.2 and 3 vs. 1: odds ratio, 12.8; 95% confidence interval, 2.4-70.0).Conclusions: Infants with severe BPD are variable in their predominant pathophysiology. Disease phenotyping may enable better risk stratification and targeted therapeutic intervention.
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Affiliation(s)
| | | | - Ammie M White
- Department of Radiology, Children's Hospital of Philadelphia and University of Pennsylvania, Philadelphia, Pennsylvania; and
| | - Yan Wang
- Division of Pediatric Cardiology, Department of Pediatrics, and
| | - David M Biko
- Department of Radiology, Children's Hospital of Philadelphia and University of Pennsylvania, Philadelphia, Pennsylvania; and
| | | | | | | | - Huayan Zhang
- Division of Neonatology.,Division of Neonatology and Center for Newborn Care, Guangzhou Women and Children's Medical Center, Guangzhou, China
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18
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Friedlander Y, Zanette B, Lindenmaier A, Sadanand S, Li D, Stirrat E, Couch M, Kassner A, Jankov RP, Santyr G. Chemical shift of
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Xe dissolved in red blood cells: Application to a rat model of bronchopulmonary dysplasia. Magn Reson Med 2019; 84:52-60. [DOI: 10.1002/mrm.28121] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 11/13/2019] [Accepted: 11/19/2019] [Indexed: 12/23/2022]
Affiliation(s)
- Yonni Friedlander
- Translational Medicine Program Hospital for Sick Children Toronto Ontario Canada
- Department of Medical Biophysics University of Toronto Toronto Ontario Canada
| | - Brandon Zanette
- Translational Medicine Program Hospital for Sick Children Toronto Ontario Canada
| | - Andras Lindenmaier
- Translational Medicine Program Hospital for Sick Children Toronto Ontario Canada
- Department of Medical Biophysics University of Toronto Toronto Ontario Canada
| | - Siddharth Sadanand
- Translational Medicine Program Hospital for Sick Children Toronto Ontario Canada
| | - Daniel Li
- Translational Medicine Program Hospital for Sick Children Toronto Ontario Canada
| | - Elaine Stirrat
- Translational Medicine Program Hospital for Sick Children Toronto Ontario Canada
| | - Marcus Couch
- Translational Medicine Program Hospital for Sick Children Toronto Ontario Canada
- Department of Medical Biophysics University of Toronto Toronto Ontario Canada
| | - Andrea Kassner
- Translational Medicine Program Hospital for Sick Children Toronto Ontario Canada
- Department of Medical Imaging University of Toronto Toronto Ontario Canada
| | - Robert P. Jankov
- Molecular Biomedicine Program Children’s Hospital of Eastern Ontario Research Institute Ottawa Ontario Canada
- Department of Cellular and Molecular Medicine University of Ottawa Ottawa Ontario Canada
| | - Giles Santyr
- Translational Medicine Program Hospital for Sick Children Toronto Ontario Canada
- Department of Medical Biophysics University of Toronto Toronto Ontario Canada
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19
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Kjellberg M, Sanchez-Crespo A, Jonsson B. Ten-year-old children with a history of bronchopulmonary dysplasia have regional abnormalities in ventilation perfusion matching. Pediatr Pulmonol 2019; 54:602-609. [PMID: 30887678 DOI: 10.1002/ppul.24273] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 01/16/2019] [Indexed: 01/25/2023]
Abstract
AIM The ratio of ventilation to blood flow is an important determinant for regional gas exchange in the lung and hypoxemia is one of the clinical hallmarks in infants with bronchopulmonary dysplasia (BPD). We have previously demonstrated ventilation/perfusion ratio (V/Q) abnormalities in infants with BPD at 36 weekś postconceptional age. The status of V/Q matching in older children with a history of BPD in infancy is unknown. In this study, we examined if 10-year-old children with a history of BPD had V/Q impairments. METHODS Three-dimensional V/Q-scintigraphy (SPECT) was performed in 26 children. RESULTS In the BPD group, lung volume with mismatch, (V>Q) was larger compared to areas with reverse mismatch (Q>V), 26.2% and 11.8%, respectively, implying that perfusion defects contribute more than ventilation defects in the V/Q mismatch. Also, the mean fractional distribution of V and Q to V/Q in children with BPD was reduced compared to healthy children, 31% and 51% compared to 64% and 89%, respectively (P < 0.01). CONCLUSION At 10 years of age children with a history of BPD had ventilation/perfusion abnormalities, with prominent perfusion defects. These V/Q abnormalities suggest the presence of residual alveolar-capillary impairment.
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Affiliation(s)
- Malin Kjellberg
- Institute of Women's and Children's Health, Department of Neonatology, Karolinska Institute and University Hospital, Stockholm, Sweden
| | - Alejandro Sanchez-Crespo
- Institution of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden.,Department of Medical Radiation Physics and Nuclear Medicine, Karolinska Univeristy Hospital, Stockholm, Sweden
| | - Baldvin Jonsson
- Institute of Women's and Children's Health, Department of Neonatology, Karolinska Institute and University Hospital, Stockholm, Sweden
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20
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Pryhuber GS. Renewed Promise of Nonionizing Radiation Imaging for Chronic Lung Disease in Preterm Infants. Am J Respir Crit Care Med 2018; 198:1248-1249. [PMID: 29944841 DOI: 10.1164/rccm.201805-0963ed] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Gloria S Pryhuber
- 1 Department of Pediatrics and.,2 Department of Environmental Medicine University of Rochester Medical Center Rochester, New York
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