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European Journal of Pediatrics Apr 2021The Pediatric Acute Lung Injury Consensus Conference (PALICC) published pediatric-specific guidelines for the definition, management, and research in pediatric acute... (Observational Study)
Observational Study
The Pediatric Acute Lung Injury Consensus Conference (PALICC) published pediatric-specific guidelines for the definition, management, and research in pediatric acute respiratory distress syndrome (PARDS). Acute viral bronchiolitis (AVB) remains one of the leading causes of admission to PICU. Respiratory syncytial virus (RSV) is the most common cause of AVB. We aimed to evaluate the incidence of PARDS in AVB and identify the risk of RSV as a trigger pathogen for PARDS. This study is a retrospective single-center observational cohort study including children < 2 years of age admitted to the pediatric intensive care unit at St Mary's Hospital, London, and presented with AVB in 3 years (2016-2018). Clinical and demographic data was collected; PALICC criteria were applied to define PARDS. Data was expressed as median (IQR range); non-parametric tests were used. In this study, 144 infants with acute viral bronchiolitis were admitted to PICU in the study period. Thirty-nine infants fulfilled criteria of PARDS with RSV as the most common virus identified. Bacterial infection was identified as a risk factor for development of PARDS in infants with AVB.Conclusion: AVB is an important cause of PARDS in infants. RSV is associated with a higher risk of PARDS in AVB. Bacterial co-infection is a significant risk factor for development of PARDS in AVB. What is Known: • Bronchiolitis is a common cause of respiratory failure in children under 2 years. • ARDS is a common cause of PICU admission. What is New: • Evaluation of bronchiolitis as a cause of PARDS according to the PALLIC criteria. • Evaluation of different viruses' outcome in PARDS especially RSV as a commonest cause of AVB.
Topics: Bronchiolitis; Bronchiolitis, Viral; Child; Humans; Infant; London; Respiratory Distress Syndrome; Respiratory Syncytial Virus Infections; Retrospective Studies
PubMed: 33161501
DOI: 10.1007/s00431-020-03852-9 -
EBioMedicine Sep 2023Patients diagnosed with environmental/occupational bronchiolitis obliterans (BO) over the last 2 decades often present with an indolent evolution of respiratory symptoms... (Review)
Review
Patients diagnosed with environmental/occupational bronchiolitis obliterans (BO) over the last 2 decades often present with an indolent evolution of respiratory symptoms without a history of high-level, acute exposure to airborne toxins. Exertional dyspnea is the most common symptom and standard clinical and radiographic evaluation can be non-diagnostic. Lung biopsies often reveal pathological abnormalities affecting all distal lung compartments. These modern cases of BO typically exhibit the constrictive bronchiolitis phenotype of small airway remodeling, along with lymphocytic inflammation. In addition, hypertensive-type remodeling of intrapulmonary vasculature, diffuse fibroelastosis of alveolar tissue, and fibrous thickening of visceral pleura are frequently present. The diagnosis of environmental/occupational BO should be considered in patients who present with subacute onset of exertional dyspnea and a history compatible with prolonged or recurrent exposure to environmental toxins. Important areas for future studies include development of less invasive diagnostic approaches and testing of novel agents for disease prevention and treatment.
Topics: Humans; Bronchiolitis Obliterans; Biopsy; Dyspnea; Phenotype
PubMed: 37598462
DOI: 10.1016/j.ebiom.2023.104760 -
Pediatric Allergy and Immunology :... Feb 2021
Topics: Asthma; Bronchiolitis; COVID-19; Child; Child, Preschool; Humans; Hypersensitivity; Risk Factors; SARS-CoV-2; beta-Lactams
PubMed: 33522012
DOI: 10.1111/pai.13436 -
Revista Da Sociedade Brasileira de... Mar 2019Because the antibody neutralizing respiratory syncytial virus (anti-RSV) has a short period of immunization and high cost, the identification of regions and months of... (Comparative Study)
Comparative Study
INTRODUCTION
Because the antibody neutralizing respiratory syncytial virus (anti-RSV) has a short period of immunization and high cost, the identification of regions and months of highest occurrence of bronchiolitis is very important.
METHODS
An Autoregressive Conditional Poisson model was constructed for count data and compared to the standard time-series Poisson regression model.
RESULTS
The metropolitan area of Paraná presented the highest average occurrence from May to July.
CONCLUSIONS
The constructed model presented a better fit and allowed prediction of when and where the bronchiolitis hospitalizations are distributed.
Topics: Brazil; Bronchiolitis; Female; Geographic Mapping; Hospitalization; Humans; Infant; Poisson Distribution; Respiratory Syncytial Virus Infections; Seasons
PubMed: 30942259
DOI: 10.1590/0037-8682-0329-2018 -
Pneumologie (Stuttgart, Germany) Feb 2012Due to the variability in respect to aetiology, histopathology, lung function, imaging and clinical presentation, as well as overlapping parenchymal processes,... (Review)
Review
Due to the variability in respect to aetiology, histopathology, lung function, imaging and clinical presentation, as well as overlapping parenchymal processes, bronchiolar disorders are generally difficult to diagnose. Thus, diseases of the small airways should generally be considered in the differential diagnostic approach to respiratory conditions. The diagnostic approach can be devided into several steps: in steps 1 (history and physical examination) and 2 (plain chest radiographs and pulmonary function tests) may point towards a bronchiolar pulmonary process. High-resolution CT (HR-CT) scanning of the chest provides three distinct HR-CT patterns (tree-in-bud sign, ill-defined centrilobular ground-glass nodules and/or pattern of mosaic attenuation, especially visible on expiratory images) which confirm a bronchiolic involvement and help to narrow down a likely diagnosis or more specific bronchiolitic diseases. In inconclusive cases, a histological diagnosis may be required. The paper presents a clinically useful algorithmic approach to diagnosis and differential diagnosis of bronchiolar disorders.
Topics: Algorithms; Biopsy; Bronchi; Bronchiolitis; Bronchoalveolar Lavage Fluid; Diagnosis, Differential; Humans; Image Enhancement; Lung; Recurrence; Risk Factors; Tomography, X-Ray Computed
PubMed: 22287054
DOI: 10.1055/s-0031-1291532 -
The European Respiratory Journal Dec 2003Over the last decade, improvements in surgical techniques, lung preservation, immunosuppression, and management of ischaemia/reperfusion injury and infections have made... (Review)
Review
Over the last decade, improvements in surgical techniques, lung preservation, immunosuppression, and management of ischaemia/reperfusion injury and infections have made intermediate-term survival after lung transplantation an achievable goal. However, chronic allograft dysfunction in the form of bronchiolitis obliterans remains a major hurdle that threatens both the quality of life and long-term survival of the recipients. It affects up to 50-60% of patients who survive 5 yrs after surgery, and it accounts for >30% of all deaths occurring after the third postoperative year. This article discusses the alloimmune-dependent and -independent risk factors for bronchiolitis obliterans, the current understanding of the pathogenesis of bronchiolitis obliterans based on results of animal and human studies, the clinical staging of the complication, strategies that may contribute to the prevention and/or early detection of bronchiolitis obliterans, and suggestions for future research.
Topics: Animals; Autoimmunity; Bronchiolitis Obliterans; Humans; Lung Transplantation; Models, Animal; Risk Factors
PubMed: 14680094
DOI: 10.1183/09031936.03.00039103 -
Pediatric Pulmonology Jun 2022Bronchiolitis is common reason for infant hospitalization. The aim of our systematic review and meta-analysis was to evaluate helium-oxygen (heliox) in bronchiolitis. (Meta-Analysis)
Meta-Analysis Review
INTRODUCTION
Bronchiolitis is common reason for infant hospitalization. The aim of our systematic review and meta-analysis was to evaluate helium-oxygen (heliox) in bronchiolitis.
METHODS
We screened 463 studies, assessed 22 of them, and included six randomized controlled trials. Primary outcomes were the need for continuous positive airway pressure (CPAP) or intubation, hospitalization duration, and change in the modified Woods Clinical Asthma Scale (M-WCAS). We calculated mean differences with 95% confidence intervals (CIs) for continuous outcomes and risk ratios (RRs) for dichotomous outcomes.
RESULTS
Six studies (five double- and one single-blinded) with 560 infants were included. The risk of bias was high in one, moderate in four, and low in one. The RR for the need for CPAP (three studies) was 0.87 (CI: 0.56-1.35), and for intubation (four studies) was 1.39 (CI: 0.53-3.63), heliox compared to air-oxygen. The hospital stay (four studies) was 0.25 days longer (CI: -0.22 to 0.71) in the heliox group. The mean decrease in M-WCAS from the baseline (three studies) was 1.90 points (CI: 1.46-2.34) greater in the heliox group.
CONCLUSION
We found low-quality evidence that heliox does not reduce the need for CPAP, intubation, or length of hospitalization for bronchiolitis. Based on the M-WCAS scores, heliox seems to relieve respiratory distress symptoms rapidly after its initiation. The included studies had high heterogeneity in their methods and included relatively mild cases of bronchiolitis. A larger randomized controlled trial with more severe cases of bronchiolitis with enough power to analyze the need for intubation is needed in the future.
Topics: Acute Disease; Bronchiolitis; Helium; Humans; Infant; Oxygen
PubMed: 35297227
DOI: 10.1002/ppul.25895 -
Journal of Osteopathic Medicine Oct 2022
Topics: Bronchiolitis; Humans; Infant; Respiratory Sounds
PubMed: 35512006
DOI: 10.1515/jom-2022-0034 -
Italian Journal of Pediatrics Sep 2023Acute viral bronchiolitis is the most common cause of hospitalization in children under 12 months of age. The variable clinical presentation and the potential for sudden... (Review)
Review
Acute viral bronchiolitis is the most common cause of hospitalization in children under 12 months of age. The variable clinical presentation and the potential for sudden deterioration of the clinical conditions require a close monitoring by healthcare professionals.In Italy, first access care for children is provided by primary care physicians (PCPs) who often must face to a heterogeneous disease presentation that, in some cases, make the management of patient with bronchiolitis challenging. Consequently, Italian studies report poor adherence to national and international guidelines processed to guide the clinicians in decision making in acute viral bronchiolitis.This paper aims to identify the potential factors contributing to the lack of adherence to the suggested guidelines derived by clear and evidence-based recommendations among primary care physicians operating in an outpatient setting, with a specific focus on the context of Italy. Particularly, we focus on the prescription of medications such as β2-agonists, systemic steroids, and antibiotics which are commonly prescribed by PCPs to address conditions that can mimic bronchiolitis.
Topics: Child; Humans; Bronchiolitis, Viral; Bronchiolitis; Anti-Bacterial Agents; Italy; Primary Health Care
PubMed: 37726761
DOI: 10.1186/s13052-023-01527-3 -
Jornal Brasileiro de Pneumologia :... 2020
Topics: Azithromycin; Bronchiolitis; Bronchiolitis Obliterans; Humans; Respiratory Sounds
PubMed: 32638841
DOI: 10.36416/1806-3756/e20200285