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Liang ZW, Gao WL. ADAMTS3 and FLT4 gene mutations result in congenital lymphangiectasia in newborns: A case report. World J Clin Cases 2023; 11:5179-5186. [PMID: 37583869 PMCID: PMC10424027 DOI: 10.12998/wjcc.v11.i21.5179] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/24/2023] [Accepted: 07/07/2023] [Indexed: 07/26/2023] Open
Abstract
BACKGROUND Congenital lymphangiectasia is a rare disease characterized by dilated interstitial lymphatic vessels and cystic expansion of the lymphatic vessels. Congenital lymphangiectasia can affect various organ systems; however, it frequently occurs in the lungs accompanied with unexplained pleural effusion. Further, it might not be diagnosed during prenatal examination owing to the absence of pronounced abnormalities. However, after birth the newborn rapidly develops respiratory distress that quickly deteriorates. Genetic variations in proteins controlling the development of lymphatic vessels contribute to the pathophysiology of this disease. We report a rare case of heterozygous mutation of ADAMTS3 and FLT4 genes, which have not been reported previously. CASE SUMMARY We analysed the case of a neonate who had presented with only pleural effusion at a late gestational age and eventually died due to its inability to establish spontaneous breathing after birth. An autopsy revealed lymphangiectasia of the organ systems. Further, whole exome sequencing revealed heterozygous mutations of the lymphangiogenesis-controlling genes, ADAMTS3 and FLT4, and Sanger verification revealed similar lesions in the mother with no symptoms. CONCLUSION Considering the presented case, obstetricians should observe unexplained foetal pleural effusion, and perform pathology analysis and whole exome sequencing for a conclusive diagnosis and prompt treatment.
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Affiliation(s)
- Zhu-Wei Liang
- Department of Obstetrics and Gynecology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Wan-Li Gao
- Department of Obstetrics and Gynecology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
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2
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Rose AT, Keene S. Changing populations being treated with ECMO in the neonatal period - who are the others? Semin Fetal Neonatal Med 2022; 27:101402. [PMID: 36414493 DOI: 10.1016/j.siny.2022.101402] [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: 11/18/2022]
Abstract
Extracorporeal life support via extracorporeal membrane oxygenation (ECMO) has served the sickest of neonates for almost 50 years. Naturally, the characteristics of neonates receiving ECMO have changed. Advances in care have averted the need for ECMO for some, while complex cases with uncertain outcomes, previously not eligible for ECMO, are now considered. Characterizing the disease states and outcomes for neonates on ECMO is challenging as many infants do not fall into classic categories, i.e. meconium aspiration syndrome (MAS), respiratory distress syndrome (RDS), or congenital diaphragmatic hernia (CDH). Since 2017, over one third of neonatal respiratory ECMO runs reported to the Extracorporeal Life Support Organization Registry are grouped as Other, a catch-all that encompasses those with a diagnosis not included in the classic categories. This review summarizes the historical neonatal ECMO population, reviews advances in therapy and technology impacting neonatal care, and addresses the unknowns in the ever-growing category of Other.
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Affiliation(s)
- Allison T Rose
- Emory University School of Medicine and Children's Healthcare of Atlanta, 2015 Uppergate Drive, NE, Atlanta, GA, 30322, USA.
| | - Sarah Keene
- Emory University School of Medicine and Children's Healthcare of Atlanta, 2015 Uppergate Drive, NE, Atlanta, GA, 30322, USA.
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3
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Lu M, Cavazzoni E, Selvadurai H, Burren JM. Paediatric acute respiratory distress syndrome: consider the role of lymphatics. BMJ Case Rep 2022; 15:e245543. [PMID: 35896306 PMCID: PMC9335033 DOI: 10.1136/bcr-2021-245543] [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] [Accepted: 06/10/2022] [Indexed: 11/04/2022] Open
Abstract
We present a case of a 7-day-old male infant with severe respiratory disease requiring venoarterial extracorporeal membrane oxygenation therapy with evidence of lymphangiectasia on lung biopsy. Differentiating primary versus secondary lymphangiectasis in this patient remains a riddle despite extensive investigations including an infective screen, lung biopsy and whole-genome sequencing. In addition to the standard therapies used in paediatric acute respiratory distress syndrome, such as lung-protective ventilation, permissive hypoxaemia and hypercarbia, nursing in the prone position, early use of muscle relaxants, rescue intravenous corticosteroids and broad-spectrum antibiotics, the patient was also given octreotide despite the absence of a chylothorax based on the theoretical benefit of altering the lymphatic flow. His case raises an interesting discussion around the role of lymphatics in the pathophysiology of paediatric and adult respiratory distress syndrome and prompts the exploration of novel agents which may affect lymphatic vessels used as an adjunctive therapy.
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Affiliation(s)
- Mimi Lu
- Respiratory and Sleep Department, Children's Hospital at Westmead, Westmead, New South Wales, Australia
- The University of Sydney Discipline of Child and Adolescent Health, Westmead, New South Wales, Australia
| | - Elena Cavazzoni
- Paediatric Intensive Care Unit, Children's Hospital at Westmead, Westmead, New South Wales, Australia
| | - Hiran Selvadurai
- Respiratory and Sleep Department, Children's Hospital at Westmead, Westmead, New South Wales, Australia
- The University of Sydney Discipline of Child and Adolescent Health, Westmead, New South Wales, Australia
| | - Juerg Martin Burren
- Paediatric Intensive Care Unit, Children's Hospital at Westmead, Westmead, New South Wales, Australia
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Bertolizio G, Engelhardt T, Veyckemans F. Congenital interstitial lung diseases: What the anesthesiologist needs to know. Paediatr Anaesth 2022; 32:138-147. [PMID: 34738691 DOI: 10.1111/pan.14325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 10/22/2021] [Accepted: 11/01/2021] [Indexed: 01/06/2023]
Abstract
Congenital interstitial lung diseases can affect both adults and children. Pediatric congenital interstitial lung diseases generally carry high risk for morbidly and mortality and include congenital alveolar capillary dysplasia with misalignment of pulmonary veins, congenital alveolar dysplasia, acinar dysplasia, congenital pulmonary lymphangiectasis, diffuse pulmonary lymphangiomatosis, neuroendocrine cell hyperplasia of infancy, pulmonary hemosiderosis, pulmonary alveolar proteinosis, and pulmonary interstitial glycogenosis. Given their usual non-specific clinical presentation, they are frequently misdiagnosed and recognized late, particularly in children who have been apparently healthy for several years (eg, diffuse pulmonary lymphangiomatosis). Some diseases have a very poor prognosis, whereas others have a benign course with appropriate treatment. The current manuscript reviews congenital interstitial lung diseases that typically affect neonates and young children and may be encountered by the pediatric anesthesiologist.
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Affiliation(s)
- Gianluca Bertolizio
- Department of Pediatric Anesthesiology, Montreal Children's Hospital, McGill University, Montreal, QC, Canada
| | - Thomas Engelhardt
- Department of Pediatric Anesthesiology, Montreal Children's Hospital, McGill University, Montreal, QC, Canada
| | - Francis Veyckemans
- Clinique d'Anesthésie pédiatrique, Hôpital Jeanne de Flandre, CHU de Lille, Lille, France
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5
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Gardner K, Sumner J, Lu M, Moschovis P, Sagar P, O'Sullivan B, Nelson BA. Recurrent hypoxemia: When crackles crack the case. Pediatr Pulmonol 2021; 56:2355-2361. [PMID: 33844459 PMCID: PMC9851803 DOI: 10.1002/ppul.25419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/05/2021] [Accepted: 04/07/2021] [Indexed: 01/21/2023]
Affiliation(s)
- Kelly Gardner
- Department of Pediatric Pulmonology, Massachusetts General Hospital for Children, Harvard Medical School, Boston, Massachusetts, USA
| | - Jeffrey Sumner
- Department of Pediatric Pulmonology, Massachusetts General Hospital for Children, Harvard Medical School, Boston, Massachusetts, USA
| | - Mengdi Lu
- Department of Pediatric Pulmonology, Massachusetts General Hospital for Children, Harvard Medical School, Boston, Massachusetts, USA
| | - Peter Moschovis
- Department of Pediatric Pulmonology, Massachusetts General Hospital for Children, Harvard Medical School, Boston, Massachusetts, USA
| | - Pallavi Sagar
- Department of Pediatric Radiology, Massachusetts General Hospital for Children, Harvard Medical School, Boston, Massachusetts, USA
| | - Brian O'Sullivan
- Department of Pediatric Pulmonology, Dartmouth-Hitchcock Medical Center, Geisel School of Medicine, Hanover, New Hampshire, USA
| | - Benjamin A Nelson
- Department of Pediatric Pulmonology, Massachusetts General Hospital for Children, Harvard Medical School, Boston, Massachusetts, USA
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Ngeow AJH, Chan MY, Teoh OH, Sanamandra SK, Chan DKL. Non-immune hydrops fetalis secondary to congenital chylothorax with diffuse interstitial lung disease: a diagnostic conundrum. BMJ Case Rep 2021; 14:14/4/e240688. [PMID: 33863770 PMCID: PMC8055142 DOI: 10.1136/bcr-2020-240688] [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: 11/03/2022] Open
Abstract
A Chinese male infant was born at 35 weeks weighing 2935 g to a mother with polyhydramnios and prenatal hydrops fetalis. He developed marked respiratory distress secondary to bilateral congenital chylothorax and required pleural drainage, high frequency oscillation and inhaled nitric oxide therapy. He was extubated to non-invasive ventilation by day 14. There was no bacterial or intrauterine infection, haematologic, chromosomal or cardiac disorder. He was exclusively fed medium-chain triglyceride formula. High-resolution CT showed diffuse interstitial lung disease. He received a dexamethasone course for chronic lung disease to facilitate supplemental oxygen weaning. A multidisciplinary team comprising neonatology, pulmonology, haematology, interventional radiology and thoracic surgery considered congenital pulmonary lymphangiectasia as the most likely diagnosis and advised open lung biopsy, lymphangiography or scintigraphy for diagnostic confirmation should symptoms of chylothorax recur. Fortunately, he was weaned off oxygen at 5 months of life, and tolerated human milk challenge at 6 months of life and grew well.
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Affiliation(s)
- Alvin Jia Hao Ngeow
- Department of Neonatal and Developmental Medicine, Singapore General Hospital, Singapore
| | - Mei Yoke Chan
- Haematology/Oncology Service, Department of Paediatric Subspecialties, KK Women's and Children's Hospital, Singapore
| | - Oon Hoe Teoh
- Respiratory Medicine Service, Department of Paediatrics, KK Women's and Children's Hospital, Singapore
| | | | - Daisy Kwai Lin Chan
- Department of Neonatal and Developmental Medicine, Singapore General Hospital, Singapore
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Abstract
Congenital pulmonary lymphangiectasia (CPL) is a rare but fatal disease, usually having an onset from the first few hours to days after birth. Inconsistent nomenclatures were used for CPL in the past decades. Patients often present with intractable respiratory failure, hydrops fetalis and even sudden death. The etiologies of CPL remain unclear. Previous hypotheses suggested that CPL might be caused by conditions preventing normal regression of the lymphatics after the 18th-20th week of gestation. Up-to-date biological studies on lymphatic development, lymphatic valve formation and occurrence of hydrops fetalis revealed possible causative relations with mutations of genes of the vascular endothelial growth factor receptor (VEGFR), RAS/MAPK, PI3K/AKT and NF-κB signaling pathways. Lung biopsy with subsequent histological and immunohistochemical studies is a gold standard of CPL diagnosis. Apart from symptomatic and supportive treatments, novel regimens including sirolimus, a mammalian target of rapamycin (mTOR) inhibitor, one of the inhibitors of the pertinent signaling pathways and ethiodized oil lymphatic embolization under ultrasound-guided intranodal lymphangiography have shown encouraging short-term therapeutic effects for lymphatic anomalies. Surgical operations (lobectomy or pneumonectomy) can be the treatment of choice for patients with CPL confined to one lobe or one lung. Patients with CPL usually have a poor prognosis and often die during the neonatal period. Their prognoses are expected to improve with the development of modern therapeutic agents.
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9
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O'Reilly R, Kilner D, Ashworth M, Aurora P. Diffuse lung disease in infants less than 1 year of age: Histopathological diagnoses and clinical outcome. Pediatr Pulmonol 2015; 50:1000-8. [PMID: 25603783 DOI: 10.1002/ppul.23124] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 08/18/2014] [Accepted: 09/28/2014] [Indexed: 11/11/2022]
Abstract
INTRODUCTION Interstitial lung disease (ILD) in infants is rare. Clinical and radiological features are often non-specific, and overlap with growth disorders and infection. In infants with severe respiratory compromise, lung biopsy is often necessary to guide acute management, but the risk and diagnostic yield of this procedure is incompletely understood. AIMS To retrospectively review infants undergoing open lung biopsy for suspected ILD at a large referral center; to determine morbidity and mortality related to the procedure; and to describe subsequent diagnosis and outcome. METHODS Lung biopsies performed in infants (aged <1 year) between January 1, 2005 and March 31, 2012 were identified and clinical data were collected. Biopsies were reclassified using the ChILD classification for diffuse lung disorders in infants. RESULTS Twenty-seven infants were identified, with the number of biopsies performed increasing each year over the study period. There was no mortality and negligible morbidity associated with biopsy. Diagnoses seen were similar to those reported by the ChILD network. Histopathological diagnosis was not compatible with life in the absence of lung transplant in 6/27 (22%) of infants. Of the 14 children longitudinally followed up (median 0.5 (0.4 - 5.81) years), only four continued to require supplemental oxygen. CONCLUSION Lung biopsy in infants with suspected ILD is safe, and histopathological diagnosis frequently assists treatment decisions, particularly with regard to withdrawal of care.
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Affiliation(s)
- Ruth O'Reilly
- Department of Paediatric Respiratory Medicine, Great Ormond Street Hospital for Children, London, UK
| | - David Kilner
- Department of Paediatric Respiratory Medicine, Great Ormond Street Hospital for Children, London, UK
| | - Michael Ashworth
- Department of Pathology, Great Ormond Street Hospital for Children, London, UK
| | - Paul Aurora
- Department of Paediatric Respiratory Medicine, Great Ormond Street Hospital for Children, London, UK.,Portex Respiratory Unit, UCL Institute of Child Health, London, UK
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10
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Pediatric lymphangiectasia: an imaging spectrum. Pediatr Radiol 2015; 45:562-9. [PMID: 25301383 DOI: 10.1007/s00247-014-3191-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 08/20/2014] [Accepted: 09/17/2014] [Indexed: 10/24/2022]
Abstract
BACKGROUND Lymphangiectasia is a rarely encountered lymphatic dysplasia characterized by lymphatic dilation without proliferation. Although it can occur anywhere, the most common locations are the central conducting lymphatics and the pulmonary and intestinal lymphatic networks. Recent advances in lymphatic interventions have resulted in an increased reliance on imaging to characterize patterns of disease. OBJECTIVE To describe the patient populations, underlying conditions, and imaging features of lymphangiectasia encountered at a tertiary pediatric institution over a 10-year period and correlate these with pathology and patient outcomes. MATERIALS AND METHODS We retrospectively reviewed the pathology database from 2002 to 2012 to identify patients with pathologically or surgically proven lymphangiectasia who had undergone cross-sectional imaging. Medical records were reviewed for patient demographics, underlying conditions, treatment and outcome. RESULTS Thirteen children were identified, ranging in age from 1 month to 16 years. Five had pulmonary lymphangiectasia, four intestinal and four diffuse involvement. Pulmonary imaging findings include diffuse or segmental interlobular septal thickening, pleural effusions and dilated mediastinal lymphatics. Intestinal imaging findings include focal or diffuse bowel wall thickening with central lymphatic dilation. Diffuse involvement included dilation of the central lymphatics and involvement of more than one organ system. Children with infantile presentation and diffuse pulmonary, intestinal or diffuse lymphatic abnormalities had a high mortality rate. Children with later presentations and segmental involvement demonstrated clinical improvement with occasional regression of disease. Three children with dilated central lymphatics on imaging underwent successful lymphatic duct ligation procedures with improved clinical course. CONCLUSION Lymphangiectasia is a complex disorder with a spectrum of presentations, imaging appearances, treatments and outcomes. Cross-sectional imaging techniques distinguish segmental involvement of a single system (pulmonary or intestinal) from diffuse disease and may show dilated central conducting lymphatics, which may benefit from interventions such as ligation or occlusion.
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11
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Reiterer F, Grossauer K, Morris N, Uhrig S, Resch B. Congenital pulmonary lymphangiectasis. Paediatr Respir Rev 2014; 15:275-80. [PMID: 24997116 DOI: 10.1016/j.prrv.2014.05.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 05/09/2014] [Indexed: 12/31/2022]
Abstract
Congenital pulmonary lymphangiectasis (CPL) is a rare vascular malformation causing dilated lymph vessels and disturbed drainage of lymph fluid. Based on the pathogenesis and clinical phenotype it can be classified as primary or secondary CPL. Associated genetic syndromes with or without lymphedema, familial occurrence and gene mutations have been described. In utero, it may present as non-immune hydrops with pleural effusions. At birth neonates may have respiratory failure due to chylothorax and pulmonary hypoplasia, causing very high short term mortality rates. Other cases may become symptomatic any time later in childhood or even during adult life. CPL is usually diagnosed based on the combination of clinical signs, imaging and histological findings. Open-lung biopsy is considered the gold standard for the diagnosis of CPL. Treatment is primarily supportive featuring aggressive mechanical ventilation and the management of problems associated with congenital chylothorax including chest-drainage, medium-chain triglycerides (MCT) diet, and octreotide.
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Affiliation(s)
- Friedrich Reiterer
- Division of Neonatology, Department of Paediatrics, Medical University of Graz, Austria.
| | - Karin Grossauer
- Division of Neonatology, Department of Paediatrics, Medical University of Graz, Austria
| | - Nicholas Morris
- Division of Neonatology, Department of Paediatrics, Medical University of Graz, Austria
| | - Sabine Uhrig
- Institute of Human Genetics, Medical University of Graz, Austria
| | - Bernhard Resch
- Division of Neonatology, Department of Paediatrics, Medical University of Graz, Austria; Research Unit for Neonatal Infectious Diseases and Epidemiology, Medical University of Graz, Austria
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12
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Abstract
Vascular malformations affect the viscera less commonly than the head and neck, extremities, and extra-cavitary soft tissues. They present with a wide spectrum of symptoms and findings including pain, respiratory compromise, hemoptysis, chylothorax, ascites, gastrointestinal bleeding, and obstruction. Management options depend upon the subtype of malformation and anatomic extent and may include sclerotherapy, embolization, surgical extirpation, coloanal pull-through, and occasionally more innovative individualized surgical approaches.
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Affiliation(s)
- Roshni Dasgupta
- Division of Pediatric General and Thoracic Surgery, Cincinnati Children׳s Medical Center, University of Cincinnati, 3333 Burnett Ave, Cincinnati, Ohio 45229.
| | - Steven J Fishman
- Department of Pediatric Surgery, Boston Children׳s Hospital, Harvard Medical School, Boston, Massachusetts
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Abstract
AIM To describe the incidence, patient profile, management strategies and outcome for infants and children who developed a chylothorax in the UK. METHODS A prospective study of infants and children ≥24 weeks' gestation - ≤16 years, who developed a chylothorax in the UK and were reported through the British Paediatric Surveillance Unit (BPSU). Clinicians completed a questionnaire on the presentation, diagnosis, management and outcome of these children. Three further data sources were accessed to confirm these data. RESULTS The incidence in children in the UK was 0.0014% (1.4 per 100,000) and 3.2% (3200 per 100,000) for those developing a chylothorax following a cardiac surgical procedure. The incidence was highest in infants ≤12 months at 16 per 100,000 (0.016%). A total of 219 questionnaires were returned with 172 cases meeting the eligibility criteria. Development of a chylothorax was most commonly associated with cardiac surgical procedure (65.1%) and was most frequently confirmed by laboratory verification of triglyceride content of the pleural fluid ≥1.1 mmol/L (66%). Although a variety of management strategies were employed, treatment with an intercostal pleural catheter (86.5%) and a medium chain triglyceride (MCT) diet (89%) was most commonly reported. The majority of the children had a prolonged hospital stay with a reported mortality of 12.2%. CONCLUSIONS Development of a chylothorax in infants and children in the UK was not common. The primary association was with a cardiac surgical procedure. The child's hospital stay was lengthy and therefore the impact on the child, family and hospital resources were significant. Common management strategies existed but national guidance is required to optimise practice. This study allows for better information relating to this serious complication to be given to patients and families and provides the basis for future research and practice development.
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Affiliation(s)
- Caroline Haines
- Bristol Royal Hospital for Children, Bristol, UK University of Southampton, Southampton, UK
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Hwang JH, Kim JH, Hwang JJ, Kim KS, Kim SY. Pneumonectomy case in a newborn with congenital pulmonary lymphangiectasia. J Korean Med Sci 2014; 29:609-13. [PMID: 24753713 PMCID: PMC3991809 DOI: 10.3346/jkms.2014.29.4.609] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 09/30/2013] [Indexed: 11/20/2022] Open
Abstract
Congenital pulmonary lymphangiectasia (CPL) is a rare lymphatic pulmonary abnormality. CPL with respiratory distress has a poor prognosis, and is frequently fatal in neonates. We report a case of pneumonectomy for CPL in a newborn. An infant girl, born at 39 weeks' after an uncomplicated pregnancy, exhibited respiratory distress 1 hr after birth, which necessitated intubation and aggressive ventilator care. Right pneumonectomy was performed after her symptoms worsened. Histologic examination indicated CPL. She is currently 12 months old and developing normally. Pneumonectomy can be considered for treating respiratory symptoms for improving chances of survival in cases with unilateral CPL.
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Affiliation(s)
- Joon Ho Hwang
- Department of Pediatrics, Eulji University College of Medicine, Daejeon, Korea
| | - Joo Heon Kim
- Department of Thorasic and Cardiovascular Surgery, Eulji University College of Medicine, Daejeon, Korea
| | - Jung Ju Hwang
- Department of Pathology, Eulji University College of Medicine, Daejeon, Korea
| | - Kyu Soon Kim
- Department of Radiology, Eulji University College of Medicine, Daejeon, Korea
| | - Seung Yeon Kim
- Department of Pediatrics, Eulji University College of Medicine, Daejeon, Korea
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Yao LC, Testini C, Tvorogov D, Anisimov A, Vargas SO, Baluk P, Pytowski B, Claesson-Welsh L, Alitalo K, McDonald DM. Pulmonary lymphangiectasia resulting from vascular endothelial growth factor-C overexpression during a critical period. Circ Res 2014; 114:806-22. [PMID: 24429550 DOI: 10.1161/circresaha.114.303119] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
RATIONALE Lymphatic vessels in the respiratory tract normally mature into a functional network during the neonatal period, but under some pathological conditions they can grow as enlarged, dilated sacs that result in the potentially lethal condition of pulmonary lymphangiectasia. OBJECTIVE We sought to determine whether overexpression of the lymphangiogenic growth factor (vascular endothelial growth factor-C [VEGF-C]) can promote lymphatic growth and maturation in the respiratory tract. Unexpectedly, perinatal overexpression of VEGF-C in the respiratory epithelium led to a condition resembling human pulmonary lymphangiectasia, a life-threatening disorder of the newborn characterized by respiratory distress and the presence of widely dilated lymphatics. METHODS AND RESULTS Administration of doxycycline to Clara cell secretory protein-reverse tetracycline-controlled transactivator/tetracycline operator-VEGF-C double-transgenic mice during a critical period from embryonic day 15.5 to postnatal day 14 was accompanied by respiratory distress, chylothorax, pulmonary lymphangiectasia, and high mortality. Enlarged sac-like lymphatics were abundant near major airways, pulmonary vessels, and visceral pleura. Side-by-side comparison revealed morphological features similar to pulmonary lymphangiectasia in humans. The condition was milder in mice given doxycycline after age postnatal day 14 and did not develop after postnatal day 35. Mechanistic studies revealed that VEGF recptor (VEGFR)-3 alone drove lymphatic growth in adult mice, but both VEGFR-2 and VEGFR-3 were required for the development of lymphangiectasia in neonates. VEGFR-2/VEGFR-3 heterodimers were more abundant in the dilated lymphatics, consistent with the involvement of both receptors. Despite the dependence of lymphangiectasia on VEGFR-2 and VEGFR-3, the condition was not reversed by blocking both receptors together or by withdrawing VEGF-C. CONCLUSIONS The findings indicate that VEGF-C overexpression can induce pulmonary lymphangiectasia during a critical period in perinatal development.
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Affiliation(s)
- Li-Chin Yao
- From the Department of Anatomy, Cardiovascular Research Institute, Comprehensive Cancer Center, University of California, San Francisco (L.-C.Y., P.B., D.M.M.); Department of Immunology, Genetics, and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden (C.T., L.C.-W.); Wihuri Research Institute and Translational Cancer Biology Program, Biomedicum Helsinki and University of Helsinki, Helsinki, Finland (D.T., A.A., K.A.); Department of Pathology, Boston Children's Hospital, Harvard University, MA (S.O.V.), and Department of Cell Biology, ImClone Systems, Eli Lilly and Company, New York (B.P.)
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Diffuse Lung Disease. PEDIATRIC CHEST IMAGING 2014. [PMCID: PMC7120093 DOI: 10.1007/174_2014_1021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Diffuse lung disease (DLD) comprises a diverse group of disorders characterized by widespread pulmonary parenchymal pathology and impaired gas exchange. While many of these disorders are categorized under the rubric of interstitial lung disease (ILD), some of these disorders involve the airspaces or peripheral airways in addition to, or rather than, the interstitium. Some of these disorders are present primarily in infancy or early childhood, while others that are prevalent in adulthood rarely occur in childhood. This chapter will review the classification of pediatric DLD and the characteristic imaging findings of specific disorders to facilitate accurate diagnosis and guide appropriate treatment of children with these disorders.
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Ruggeri G, Destro F, Maffi M, Gregori G, Lima M. A Rare Case of Chylothorax due to Pulmonary Lymphangiectasia in a 7-Year-Old Boy. European J Pediatr Surg Rep 2013; 1:18-20. [PMID: 25755942 PMCID: PMC4336100 DOI: 10.1055/s-0033-1337111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2012] [Accepted: 11/26/2012] [Indexed: 11/04/2022] Open
Abstract
Pulmonary lymphangiectasia (PL) is a rare condition characterized by dilatation of the lymphatic vessels. Post-neonatal PL is usually associated with pleural effusion and should therefore be suspected in the presence of chylothorax. We describe a post-neonatal manifestation of PL in a 7-year-old boy presenting chylothorax. Radiological examinations included thorax X-ray, ultrasound, and computed tomography scans. After the failure of conservative management (maintenance of the chest tube, total parenteral nutrition, administration of somatostatin synthetic analogues) we performed a thoracoscopic massive ligation of the thoracic duct's collateral along with a lung biopsy. Histology was compatible with type 1 congenital pulmonary lymphangectasia. One month after surgery a thoracoscopic pleurodesis was required for persistent chylothorax. The boy is now doing well 1 year after surgery.
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Affiliation(s)
- Giovanni Ruggeri
- Department of Pediatric Surgery, S. Orsola-Malpighi Hospital, Bologna, Italy
| | - Francesca Destro
- Department of Pediatric Surgery, S. Orsola-Malpighi Hospital, Bologna, Italy
| | - Michela Maffi
- Department of Pediatric Surgery, S. Orsola-Malpighi Hospital, Bologna, Italy
| | - Giulio Gregori
- Department of Pediatric Surgery, S. Orsola-Malpighi Hospital, Bologna, Italy
| | - Mario Lima
- Department of Pediatric Surgery, S. Orsola-Malpighi Hospital, Bologna, Italy
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18
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Congenital pulmonary lymphangiectasia: an unusual presentation of nonimmune hydrops in a preterm infant. Adv Neonatal Care 2012; 12:166-71. [PMID: 22668688 DOI: 10.1097/anc.0b013e3182569c61] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Congenital pulmonary lymphangiectasia (CPL) is a rare developmental disorder of the lung. CPL can present antenatally as nonimmune hydrops with pleural effusions, which are frequently associated with polyhydraminos. CPL presents in the neonatal period with severe respiratory distress and can be complicated by chylothorax. Diagnosis is difficult, as radiographic findings are nonspecific. Lung biopsy is indicated in some severe cases to diagnose CPL. The majority of infants with this condition rarely survive the neonatal period and are often diagnosed at autopsy. The final diagnosis is confirmed histologically by lung biopsy or at postmortem. We report a rare case of CPL in a preterm female infant presenting with severe nonimmune Hydrops fetalis who survived the neonatal period, and report clinical follow-up to early childhood.
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Nouri-Merchaoui S, Mahdhaoui N, Yacoubi MT, Seboui H. [Congenital pulmonary lymphangiectasis: an unusual cause of respiratory distress in neonates]. Arch Pediatr 2012; 19:408-12. [PMID: 22381667 DOI: 10.1016/j.arcped.2012.01.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 09/30/2011] [Accepted: 01/16/2012] [Indexed: 11/25/2022]
Abstract
Congenital pulmonary lymphangiectasis (CPL) is a rare condition in neonates characterized by abnormal dilatation of the lymphatics draining the interstitial and subpleural spaces of the lungs. Diagnosis is difficult in the neonatal period because respiratory features and radiological findings are not specific of the disease. Definitive diagnosis of CPL can be made only by pathologic examinations. We report a case of a male near-term neonate presenting with severe respiratory distress at birth. The initial chest X-ray showed frosted glass-like infiltrates with air bronchogram suggesting a maternofetal infection or respiratory distress syndrome. The infant required mechanical ventilation and chest tube insertion for right then bilateral pneumothorax. The child died 15 days later in spite of optimal high-frequency ventilation, bilateral pneumothorax drainage, and hemodynamic support. Autopsy revealed features consistent with the diagnosis of CPL. Although CPL is very rare, we should be aware that it is a possible cause of severe unexplained respiratory distress in neonates.
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Lesser DJ, Young LR, Hagood JS. Rare Childhood Lung Disorders. KENDIG & CHERNICKÂS DISORDERS OF THE RESPIRATORY TRACT IN CHILDREN 2012:877-885. [DOI: 10.1016/b978-1-4377-1984-0.00060-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2025]
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Affiliation(s)
- L Donato
- Pôle Médico-Chirurgical de Pédiatrie, Hôpitaux Universitaires de Strasbourg, France.
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Literature Watch. Lymphat Res Biol 2009. [DOI: 10.1089/lrb.2009.7203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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