High-Dose Magnesium Sulfate Infusion for Severe Asthma in the Emergency Department

2016 ◽  
Vol 17 (2) ◽  
pp. e29-e33 ◽  
Author(s):  
Jose E. Irazuzta ◽  
Fatima Paredes ◽  
Viviana Pavlicich ◽  
Sara L. Domínguez
2010 ◽  
Vol 23 (5) ◽  
pp. 432-437 ◽  
Author(s):  
M.C. Gallegos-Solórzano ◽  
Rogelio Pérez-Padilla ◽  
Rafael J. Hernández-Zenteno

2002 ◽  
Vol 15 (4) ◽  
pp. 187-194 ◽  
Author(s):  
Sandra J. Downes ◽  
Jon E. Stahlman ◽  
Irene M. Borras ◽  
Luis M. Salmun ◽  
Lynda C. Schneider

Thorax ◽  
2020 ◽  
pp. thoraxjnl-2020-215168
Author(s):  
David J Jackson ◽  
John Busby ◽  
Paul E Pfeffer ◽  
Andrew Menzies-Gow ◽  
Thomas Brown ◽  
...  

BackgroundThe UK Severe Asthma Registry (UKSAR) is the world’s largest national severe asthma registry collecting standardised data on referrals to UK specialist services. Novel biologic therapies have transformed the management of type 2(T2)-high severe asthma but have highlighted unmet need in patients with persisting symptoms despite suppression of T2-cytokine pathways with corticosteroids.MethodsDemographic, clinical and treatments characteristics for patients meeting European Respiratory Society / American Thoracic Society severe asthma criteria were examined for 2225 patients attending 15 specialist severe asthma centres. We assessed differences in biomarker low patients (fractional exhaled nitric oxide (FeNO) <25 ppb, blood eosinophils <150/μL) compared with a biomarker high population (FeNO ≥25 ppb, blood eosinophils ≥150/µL).ResultsAge (mean 49.6 (14.3) y), age of asthma onset (24.2 (19.1) y) and female predominance (62.4%) were consistent with prior severe asthma cohorts. Poor symptom control (Asthma Control Questionnaire-6: 2.9 (1.4)) with high exacerbation rate (4 (IQR: 2, 7)) were common despite high-dose treatment (51.7% on maintenance oral corticosteroids (mOCS)). 68.9% were prescribed biologic therapies including mepolizumab (50.3%), benralizumab (26.1%) and omalizumab (22.6%). T2-low patients had higher body mass index (32.1 vs 30.2, p<0.001), depression/anxiety prevalence (12.3% vs 7.6%, p=0.04) and mOCS use (57.9% vs 42.1%, p<0.001). Many T2-low asthmatics had evidence of a historically elevated blood eosinophil count (0.35 (0.13, 0.60)).ConclusionsThe UKSAR describes the characteristics of a large cohort of asthmatics referred to UK specialist severe asthma services. It offers the prospect of providing novel insights across a range of research areas and highlights substantial unmet need with poor asthma control, impaired lung function and high exacerbation rates. T2-high phenotypes predominate with significant differences apparent from T2-low patients. However, T2-low patients frequently have prior blood eosinophilia consistent with possible excessive corticosteroid exposure.


2020 ◽  
Vol 6 (4) ◽  
pp. 00566-2020
Author(s):  
Norrice M. Liu ◽  
Karin C.L. Carlsen ◽  
Steve Cunningham ◽  
Grazia Fenu ◽  
Louise J. Fleming ◽  
...  

New biologics are being continually developed for paediatric asthma, but it is unclear whether there are sufficient numbers of children in Europe with severe asthma and poor control to recruit to trials needed for registration. To address these questions, the European Respiratory Society funded the Severe Paediatric Asthma Collaborative in Europe (SPACE), a severe asthma registry. We report the first analysis of the SPACE registry, which includes data from 10 paediatric respiratory centres across Europe.Data from 80 children with a clinical diagnosis of severe asthma who were receiving both high-dose inhaled corticosteroid and long-acting β2-agonist were entered into the registry between January 2019 and January 2020. Suboptimal control was defined by either asthma control test, or Global Initiative for Asthma criteria, or ≥2 severe exacerbations in the previous 12 months, or a combination.Overall, 62 out of 80 (77%) children had suboptimal asthma control, of whom 29 were not prescribed a biologic. However, in 24 there was an option for starting a licensed biologic. 33 children with suboptimal control were prescribed a biologic (omalizumab (n=24), or mepolizumab (n=7), or dupilumab (n=2)), and for 29 there was an option to switch to a different biologic.We conclude that the SPACE registry provides data that will support the planning of studies of asthma biologics. Not all children on biologics achieve good asthma control, and there is need for new trial designs addressing biologic switching.


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