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Browse 47,334 clinical trials for rheumatoid arthritis. Find studies that match your criteria and connect with research centers.
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NCT06146439
The goal of this observational study is to identify the variables that predict treatment failure in order to identify the patients in which HFNC treatment may fail and not delay the transition to advanced respiratory support treatments in these patients. The main questions it aims to answer are: * What factors contribute to the failure of HFNC treatment in these children? * What is the frequency of HFNC treatment failure in children with moderate and severe respiratory distress? Researchers will compare the group whose HFNC treatment was successful with the group whose HFNC treatment failed to identify factors that cause treatment failure.
NCT04521426
Rationale: The pathophysiological changes in respiratory muscle morphology and functioning in patients with end-stage pulmonary disease are not very well known. Furthermore, in COPD, long-term high-intensity NIV is applied without knowing the exact consequences on the lungs and respiratory muscles. Objective: The aims of the study are to get insight in: A. changes respiratory muscles in end-stage respiratory disease, comparing COPD with restrictive lung disease (RLD) due to pulmonary fibrosis B. the effects of long-term HI-NIV in severe COPD patients on the respiratory muscles and the lungs; by comparing COPD patients that had been treated with long-term NIV to COPD patients that were not treated with long-term NIV. Study design: In order to investigate this, the investigators will include in a small pilot cohort study patients being lung transplanted. In these patients there is lung tissue available and respiratory muscle biopsies will be performed during lung-transplant surgery. Study population: Patients that are listed for lung transplantation for an underlying diagnosis of COPD or RLD will be asked to participate. Three groups will be included: patients with a RLD due to pulmonary fibrosis, COPD patients that had been treated with long-term NIV prior to being lung transplanted and COPD patients that were not treated with long-term NIV. Patients will be included definitely once being lung transplanted. Main study parameters/endpoints: The study is an exploratory pilot study. Both contractile strength and the structure of single diaphragm and intercostal muscle fibres as well as lung injury; i.e. alveolar structure and damage and inflammation in the alveoli, will be investigated.