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

The purpose of this study is to assess the value of circulating tumor cells (CTC)for non-small cell lung cancer in the postoperative recurrence monitoring by comparing the CTCs, CT and tumor markers at different time points.The time of CTC and carcinoembryonic antigen(CEA) detection is baseline, 2~7 days, 3 months, 6 months, 12 months, 24 months, 36 months after the surgery. And the time of CT detection is 6 months, 12 months, 24 months, 36 months after the surgery.

In this study, the investigators aim to observe the change in alveolar macrophage function during acute lung injury.

Postoperative acute lung injury (ALI) during the first 72 hours after liver transplantation is not uncommon. Injury may occur because liver transplantation is often associated with prolonged operative time, large volumes of fluid administration and transfusion, as well as inflammatory responses related to ischemia-reperfusion injury. For more precise perioperative fluid and hemodynamic management, modern monitoring systems, such as the pulse contour cardiac output (PiCCO) system, have been devised and reported in recent years. The PiCCO system uses the thermodilution technique to determine the cardiac index (CI) and thoracic fluid indices such as the intrathoracic blood volume index (ITBVI), extravascular lung water index (EVLWI), and pulmonary vascular permeability index (PVPI), all of which may reflect pulmonary fluid and injury status. However, perioperative changes in thoracic fluid indices in liver transplantation and their associations with postoperative ALI are not yet clear. In this study, the investigators aimed to determine patterns of change in perioperative thoracic fluid indices and compare these changes in recipients who did or did not develop postoperative ALI. Furthermore, the investigators will also try to determine the potential risk factors following liver transplantation.

Photoplethismography will be measured and compared in newborns suffering from patent ductus arteriosus and normal controls.

COPD and sleep apnea dyspnea syndrome represent two of the most common chronic lung diseases. It is reported that the prevalence of COPD with sleep apnea dyspnea syndrome is also very high. COPD and sleep apnea may have pathological or genetics interactions so that patients having both disorders tend to have worse outcomes than either condition alone. Data reflecting the prevalence, disease course and outcome of overlap syndrome is very limited in China. Therefore, the aim of the study is to describe the prevalence, treatment and outcome in Chinese patients and exploring the underlying interaction mechanism.

To develop a patient-reported questionnaire to investigate the impact of PAH (pulmonary arterial hypertension) on patients' daily lives in terms of bothersomeness and disability.

Patients with chronic obstructive pulmonary disease (COPD) are 2-3 times more likely to occur together with chronic gastrointestinal tract (GIT) diseases, such as inflammatory bowel disease (IBD) or irritable bowel syndrome (IBS). Similarly, despite many patients have no history of acute or chronic respiratory disease, up to 50% of IBD patients and 33% of IBS patients have pulmonary involvement, such as inflammation or impaired lung function. Increasing evidence indicated chronic gut and lung disease share key conceptual features with the disorder and dysregulation of the microbial ecosystem. However, the underlying mechanisms are not well understood. Our study is aimed to elucidate the intimate relationship between the gastrointestinal tract and respiratory tract, and uncover the mechanisms by which the gut microbiota affects the immune responses in the lungs, and vice versa.

FEVRIER study is an observatory of hospitalizations in cardiology units in sub-Saharan Africa.

Reactive airway diseases is a common respiratory diseases affecting 1-18% of the population in different countries. It carries a significant burden to children, their families, the healthcare system and the overall community.The purpose of the study is to delineate the prevalence of abnormal nasal finding in wheezy children and evaluate the role of the endoscopic examination of the nose in evaluation and management of a wheezy child.Patients and methods:The study will be conducted as a prospective case series including all children having chest wheezes, aged from two years to eighteen years, attending emergency unit of assuit university children hospital

Very recent studies indicate that a high percentage of HCL, about 50%, have mutations in the B-RAF oncogene. The development of ultrasensitive methodologies capable of identifying these mutations in bronchoalveolar lavage will represent a significant advance in the diagnosis and treatment of these patients. An undetermined percentage of HCL does not present mutations in B-RAF. Consequently, the deep genetic analysis, through the use of techniques of massive sequencing, can favor the identification of new alterations that contribute to the development of the disease. We hypothesized that patients with HCL may present a different inflammatory state to healthy subjects or smokers, allowing us to identify new biomarkers.