592 research outputs found

    The ombudsman: master bridge builder or quixotic defender of human rights?

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    Diagnostic workup of childhood interstitial lung disease

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    Interstitial and orphan lung diseaseEnfermedad pulmonar intersticial y huérfanaMalaltia pulmonar intersticial i orfeChildhood interstitial lung diseases (chILDs) are rare and heterogeneous diseases with significant morbidity and mortality. An accurate and quick aetiological diagnosis may contribute to better management and personalised treatment. On behalf of the European Respiratory Society Clinical Research Collaboration for chILD (ERS CRC chILD-EU), this review summarises the roles of the general paediatrician, paediatric pulmonologists and expert centres in the complex diagnostic workup. Each patient's aetiological chILD diagnosis must be reached without prolonged delays in a stepwise approach from medical history, signs, symptoms, clinical tests and imaging, to advanced genetic analysis and specialised procedures including bronchoalveolar lavage and biopsy, if necessary. Finally, as medical progress is fast, the need to revisit a diagnosis of “undefined chILD” is stressed

    Host and Plugins : Parameter Automation Without Crossing the Audio Thread Barrier

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    International audienceWebAudio Modules 2.0 (aka WAM) is a standard for developing interoperable host and plugins that can be written using different development approaches (JavaScript, build systems, TypeScript, FAUST, Csound, front-end frameworks, etc.). The WAM standard has been designed with high performance host-plugin communication in mind when both the host and plugins are running in the audio thread. This is the case when the host is written as an Audio Worklet (AW) and when plugins are also AW based. We have developed for the WAM standard an example of such a host: a very simple DAW using Audio Worklets to manage the audio buffers for each track. In a typical way, each track is associated to a chain of plugins, to bring for example real time effects on the signal. This DAW is an interesting example to study for developers who would like to write this type of program: not only does it show how to manage audio buffers with sample accuracy (in order to have very precise loops), but it also shows how, thanks to the tools offered by the WAM standard, you can automate a large number of plugin parameters at the sample rate in a very efficient way (using Shared Array Buffers and Ring Buffers), much more than what is possible with the management of the parameters offered by the WebAudio API. Licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). Attribution: owner/author(s)

    Healthcare resource utilization and medical costs for children with interstitial lung diseases (chILD) in Europe

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    Background No data on healthcare utilisation and associated costs for the many rare entities of children's interstitial lung diseases (chILD) exist. This paper portrays healthcare utilisation structures among individuals with chILD, provides a pan-European estimate of a 3-month interval per-capita costs and delineates crucial cost drivers. Methods Based on longitudinal healthcare resource utilisation pattern of 445 children included in the Kids Lung Register diagnosed with chILD across 10 European countries, we delineated direct medical and non-medical costs of care per 3-month interval. Country-specific utilisation patterns were assessed with a children-tailored modification of the validated FIMA questionnaire and valued by German unit costs. Costs of care and their drivers were subsequently identified via gamma-distributed generalised linear regression models. Results During the 3 months prior to inclusion into the registry (baseline), the rate of hospital admissions and inpatient days was high. Unadjusted direct medical per capita costs (euro19 818) exceeded indirect (euro1 907) and direct non-medical costs (euro1 125) by far. Country-specific total costs ranged from euro8 713 in Italy to euro28 788 in Poland. Highest expenses were caused by the disease categories 'diffuse parenchymal lung disease (DPLD)-diffuse developmental disorders' (euro45 536) and 'DPLD-unclear in the non-neonate' (euro47 011). During a follow-up time of up to 5 years, direct medical costs dropped, whereas indirect costs and non-medical costs remained stable. Conclusions This is the first prospective, longitudinal study analysing healthcare resource utilisation and costs for chILD across different European countries. Our results indicate that chILD is associated with high utilisation of healthcare services, placing a substantial economic burden on health systems

    Pulmonary function testing in children's interstitial lung disease

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    The use of pulmonary function tests (PFTs) has been widely described in airway diseases like asthma and cystic fibrosis, but for children's interstitial lung disease (chILD), which encompasses a broad spectrum of pathologies, the usefulness of PFTs is still undetermined, despite widespread use in adult interstitial lung disease. A literature review was initiated by the COST/Enter chILD working group aiming to describe published studies, to identify gaps in knowledge and to propose future research goals in regard to spirometry, whole-body plethysmography, infant and pre-school PFTs, measurement of diffusing capacity, multiple breath washout and cardiopulmonary exercise tests in chILD. The search revealed a limited number of papers published in the past three decades, of which the majority were descriptive and did not report pulmonary function as the main outcome.PFTs may be useful in different stages of management of children with suspected or confirmed chILD, but the chILD spectrum is diverse and includes a heterogeneous patient group in all ages. Research studies in well-defined patient cohorts are needed to establish which PFT and outcomes are most relevant for diagnosis, evaluation of disease severity and course, and monitoring individual conditions both for improvement in clinical care and as end-points in future randomised controlled trials

    Persistent tachypnea of infancy: Follow up at school age.

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    AbstractBackgroundPersistent tachypnea of infancy (PTI) is a rare pediatric lung disease of unknown origin. The diagnosis can be made by clinical presentation and chest high resolution computed tomography after exclusion of other causes. Clinical courses beyond infancy have rarely been assessed.MethodsPatients included in the Kids Lung Register diagnosed with PTI as infants and now older than 5 years were identified. Initial presentation, extrapulmonary comorbidities, spirometry and clinical outcome were analyzed.ResultsThirty‐five children older than 5 years with PTI diagnosed as infants were analyzed. At the age of 5 years, 74% of the patients were reported as asymptomatic and did not develope new symptoms during the observational period at school‐age (mean, 3.9 years; range, 0.3‐6.3). At the age of about 10 years, none of the symptomatic children had abnormal oxygen saturation during sleep or exercise anymore. Lung function tests and breathing frequency were within normal values throughout the entire observational period.ConclusionsPTI is a pulmonary disease that can lead to respiratory insufficiency in infancy. As at school age most of the previously chronically affected children became asymptomatic and did not develop new symptoms. We conclude that the overall clinical course is favorable

    Diffuse alveolar hemorrhage in children with interstitial lung disease: Determine etiologies!

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    OBJECTIVE: Diffuse alveolar hemorrhage (DAH) in children is a rare condition resulting from different underlying diseases. This study aimed at describing characteristics and diagnostic measures in children with ILD (children\u27s interstitial lung disease, chILD) and DAH to improve the diagnostic approach by increasing clinician\u27s awareness of diagnostic shortcomings. PATIENTS AND METHODS: A retrospective data analysis of patients with ILD and DAH treated in our own or collaborating centers between 01/07/1997 and 31/12/2020 was performed. Data on clinical courses and diagnostic measures were systematically retrieved as case-vignettes and investigated. To assess suitability of diagnostic software-algorithms, the Human Phenotype Ontology (HPO) was revised and expanded to optimize conditions of its associated tool the Phenomizer. RESULTS: For 97 (74%) of 131 patients, etiology of pulmonary hemorrhage was clarified. For 34 patients (26%), no underlying condition was found (termed as idiopathic pulmonary hemorrhage, IPH). Based on laboratory findings or clinical phenotype/comorbidities, 20 of these patients were assigned to descriptive clusters: IPH associated with autoimmune features (9), eosinophilia (5), renal disease (3) or multiorgan involvement (3). For 14 patients, no further differentiation was possible. CONCLUSION: Complete and sometimes repeated diagnostics are essential for establishing the correct diagnosis in children with DAH. We suggest assignment of patients with IPH to descriptive clusters, which may also guide further research. Digital tools such as the Phenomizer/HPO are promising, but need to be extended to increase diagnostic accuracy
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