Active clinical trials for "Respiratory Tract (Lung and Bronchial) Diseases"

The purpose of the study is to identify the genetic closeness of NTM derived from patients living together and from their surrounding environment and to trace the temporal relationship between them.

Changes in heart rate variability in anesthetized, ventilated patients undergoing tension pneumothorax for thoracoscopic cervical sympathectomy

The general objective of this multicenter, international study is to perform a multivariate descriptive analysis of a large population of well-defined subjects with sensitizer-induced OA ascertained by a positive SIC result in order to provide more information on the characteristics of this condition.

The purpose of this study is to analysis the volatile organic gases(VOCs) in exhaled breath of pulmonary lesion patients and healthy controls, in order to find the difference of composition and concentration among groups.

Aging is associated with immunosenescence and impaired host defense mechanisms, contributing to influenza-related morbidity and mortality. Preliminary data demonstrate that the platelet transcriptome is markedly different between healthy subjects and influenza patients. Interferon-induced transmembrane proteins (IFITM) family members are among the transcripts significantly increased in platelets during influenza and expression of IFITM-3 is impaired in elderly subjects, a pattern associated with increased mortality. This study will build on these data and investigate if aging influences the expression of platelet IFITM family members in patients with influenza and sepsis. This study will prospectively determine if aging alters the induction of (IFITMs) in platelets from hospitalized influenza and sepsis patients. The study will also determine if diminished expression of IFITM family members correlates with an increased risk of adverse outcomes in older influenza and sepsis patients.

The purpose of this study is to evaluate the mutation pattern of epidermal growth factor receptor (EGFR) and other TKI targeted gene during TKI treatment of advanced NSCLC patient with liquid biopsy.

Pulmonary function testing is the most widely used tool for the diagnosis, severity assessment, management, risk factor categorization and follow-up of individuals with chronic lung disease. Africa has a high burden of infectious respiratory diseases which include tuberculosis, asthma and human immunodeficiency virus-related lung disease. Coupled with this is an increasing burden of non-communicable respiratory diseases; which include chronic obstructive pulmonary disease, emphysema, bronchiectasis and asthma. A proviso to the use of lung function testing is the determination of "normal" values; which are determined for age, gender, height and ethnicity for the relevant population. It is well recognised that the comparison of an individual patients' results to an ethnically inappropriate population may lead to the under or -over diagnosis of disease, inappropriate treatments and result in increased burden on individuals, their families and the healthcare system. The investigators therefore propose to conduct a prospective well-designed study to include a representative sample of both adults and children (4000); to verify the validity of the retrospective pilot data, in a South African population.

This study is a multicenter and prospective cohort study of children diagnosed with asthma. Clinical symptoms and signs, quality of life, blood test, and lung function were detected every three months. FeNO detection, chest imaging, and induced sputum smear were detected when necessary. Biological samples will be collected when recruiting and finishing follow-up.

Acute dyspnea after use of non-invasive ventilation (NIV) is a common phenomenon in patients with COPD and emphysema. This trial aims to document incidence and severity of augmented dyspnea in patients with long term NIV therapy. These findings may help in understanding the pathomechanisms that lead to post-NIV dyspnea and thus give way to potential therapy schemes.

Diagnostic errors have been reported frequently in patient with pulmonary embolism since symptoms are not specific. However, there is only scarce evidence that the delay associated with diagnostic errors may impact patient prognosis. The aim of this study is to determine the frequency of diagnostic errors and if they are associated with more severe pulmonary embolism in term of initial presentation and complications.