| 2. |
- Loza, M. J., et al.
(author)
-
Validated and longitudinally stable asthma phenotypes based on cluster analysis of the ADEPT study
- 2016
-
In: Respiratory Research. - : Springer Nature. - 1465-9921 .- 1465-993X. ; 17:1
-
Journal article (peer-reviewed)abstract
- Background: Asthma is a disease of varying severity and differing disease mechanisms. To date, studies aimed at stratifying asthma into clinically useful phenotypes have produced a number of phenotypes that have yet to be assessed for stability and to be validated in independent cohorts. The aim of this study was to define and validate, for the first time ever, clinically driven asthma phenotypes using two independent, severe asthma cohorts: ADEPT and U-BIOPRED. Methods: Fuzzy partition-around-medoid clustering was performed on pre-specified data from the ADEPT participants (n = 156) and independently on data from a subset of U-BIOPRED asthma participants (n = 82) for whom the same variables were available. Models for cluster classification probabilities were derived and applied to the 12-month longitudinal ADEPT data and to a larger subset of the U-BIOPRED asthma dataset (n = 397). High and low type-2 inflammation phenotypes were defined as high or low Th2 activity, indicated by endobronchial biopsies gene expression changes downstream of IL-4 or IL-13. Results: Four phenotypes were identified in the ADEPT (training) cohort, with distinct clinical and biomarker profiles. Phenotype 1 was "mild, good lung function, early onset", with a low-inflammatory, predominantly Type-2, phenotype. Phenotype 2 had a "moderate, hyper-responsive, eosinophilic" phenotype, with moderate asthma control, mild airflow obstruction and predominant Type-2 inflammation. Phenotype 3 had a "mixed severity, predominantly fixed obstructive, non-eosinophilic and neutrophilic" phenotype, with moderate asthma control and low Type-2 inflammation. Phenotype 4 had a "severe uncontrolled, severe reversible obstruction, mixed granulocytic" phenotype, with moderate Type-2 inflammation. These phenotypes had good longitudinal stability in the ADEPT cohort. They were reproduced and demonstrated high classification probability in two subsets of the U-BIOPRED asthma cohort. Conclusions: Focusing on the biology of the four clinical independently-validated easy-to-assess ADEPT asthma phenotypes will help understanding the unmet need and will aid in developing tailored therapies. Trial registration:NCT01274507(ADEPT), registered October 28, 2010 and NCT01982162(U-BIOPRED), registered October 30, 2013.
|
|
| 3. |
- Thomet, Corina, et al.
(author)
-
Staffing, activities, and infrastructure in 96 specialised adult congenital heart disease clinics in Europe.
- 2019
-
In: International journal of cardiology. - : Elsevier BV. - 1874-1754 .- 0167-5273. ; 292, s. 100-105
-
Journal article (peer-reviewed)abstract
- Clinical guidelines emphasise the need for specialised adult congenital heart disease (ACHD) programmes. In 2014, the working group on Grown-up Congenital Heart Disease of the European Society of Cardiology (ESC) published recommendations on the organisation of specialised care for ACHD. To appraise the extent to which these recommendations were being implemented throughout Europe, we assessed the number of patients in active follow-up and available staff resources in European ACHD programmes.We conducted a descriptive, cross-sectional, paper-based survey of specialised ACHD centres in Europe in late 2017 concerning their centre status in 2016. Data from 96 ACHD centres were analysed. We categorised ACHD programmes into seven different centre types based on their staff resources and composition of interdisciplinary teams.Only four centres fulfilled all medical and non-medical staffing requirements of the ESC recommendations. Although 60% of the centres offered all forms of medical care, they had incomplete non-medical resources (i.e., specialised nurses, social workers, or psychologists). The participating centres had 226,506 ACHD patients in active follow-up, with a median of 1500 patients per centre (IQR: 800-3400). Six per cent of the patients were followed up in a centre that lacked a CHD surgeon or congenital interventional cardiologist.A minority of European ACHD centres have the full recommended staff resources available. This suggests that as of 2016 either ACHD care in Europe was still not optimally organised, or that the latest ESC recommendations were not fully implemented in clinical practice.
|
|
