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

The study looked at whether regular physical activity can influence sleep duration, sleep quality and/or anxiety in patients with chronic obstructive pulmonary disease (COPD) and idiopathic pulmonary fibrosis (IPF). The link between exercise and sleep has already been observed in the literature, but the impact of exercise on sleep is poorly understood. The question is how important is the influence of regular physical activity on sleep, anxiety and depression in patients with COPD or IPF.

Research project objectives: Most common complication of P2Y12 inhibitors treatment, particularly with ticagrelor, is dyspnea reported in 0 to 9.3% and in 10 to 38.6% of patients taking clopidogrel and ticagrelor respectively. Pathogenesis of the P2Y12 inhibitors-induced dyspnea is unknown; however, recently published case reports suggests activation of chemosensory areas. The primary objective of this study is to assess the influence of most commonly used in clinical practice P2Y12 inhibitors - ticagrelor and clopidogrel - on central and peripheral chemosensitivities. The secondary objective of the study is to define the relationship between baseline chemosensitivity (assessed before the drug initiation) and the occurrence of dyspnea after the drug administration. Methodology: Patients undergoing percutaneous coronary angioplasty (PCI), who according to current European Cardiac Society Guidelines are prescribed with various P2Y12 inhibitors (drug choice depends on individual clinical situation), will be enrolled to the study. Patients will be assigned to 2 groups depending on the type of P2Y12 inhibitor prescribed: Group A -patients receiving ticagrelor, Group B -patients receiving clopidogrel. In both groups chemosensitivity assessment will be performed before P2Y12 inhibitor administration and after the drug initiation. Patients will be additionally asked to fill the questionnaire regarding dyspnea sensation during the treatment (VAS scale and investigator-designed questionnaire). Peripheral chemosensitivity assessment will be performed using transient hypoxia method, when progressive hypercapnic test will be employed to test central chemosensitivity. Blinded recordings of chemosensitivity tests will be analyzed by researcher not involved in data collection. Chemosensitivities prior to and after drugs initiation will be compared separately for groups A and B using appropriate statistical tests. The results of dyspnea sensation questionnaire will be compared between patients with high- and low- peripheral chemosensitivity (assessed before P2Y12 inhibitor initiation) within particular groups.

SARS-COV-2 infection is responsible for a potentially severe primarily respiratory infection called COVID19. A large proportion of patients, in particular in severe forms, present with thrombotic manifestations (DVT, EP, stroke, thrombosis of dialysis circuits, etc.). A significant proportion is also a carrier of circulating anticoagulant (ACC or LA), making it possible to suggest a diagnosis of APS. This type of autoantibody results in a spontaneous prolongation of the TCA uncorrected by a control serum therefore is quickly diagnosed using standard hemostasis The objective of this study is to describe the diagnosis of thrombotic complications in COVID19 patients presenting a positive lupus anticoagulant type test (LA) or aPL and the associated clinical and biological elements that may have favored thrombosis.

A current problem in Radiology Departments is the constant increase in the number of studies performed. Currently the largest volume of studies belongs to plain x-rays. This problem is intensified by the shortage of specialists with dedication and experience in their interpretation. In the field of computer science, an area of study called Artificial Intelligence (AI) has emerged, which consists of a computer system that learns to perform specific routine tasks, and can complement or imitate human work. Since 2018, Hospital Italiano de Buenos Aires has been running the TRx program, which consists of the development of an AI-based tool to detect pathological findings in chest x-rays. The intended use of this tool is to assist non-imaging physicians in the diagnosis of chest x-rays by automatically detecting radiological findings. The present multicenter study seeks to externally validate the performance of an AI tool (TRx v1) as a diagnostic assistance tool for chest x-rays.

The aim in this study is to evaluate pain, fatigue and quality of life in patients with Covid-19 pneumonia in long-term follow-up and to investigate their relationship with pneumonia severity, age, presence of comorbidity and depression level.

The aim of this study is to evaluate pro-inflammatory cytokines as well as microvesicles during the course of SARS-CoV2 infection in the context of clinical parameters.

The aim of this trial is to assess PD1-lymphocytes in bronchoalveolar lavage in patients with lung cancer, ILD and asthma.

The ongoing pandemic caused by the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS CoV-2) has infected more than one hundred twenty million peoples worldwide one year after its onset with a case-fatality rate of almost 2%. The disease due to the coronavirus 2019 (i.e., COVID-19) is associated with a wide range of clinical symptoms. As the primary site of viral invasion is the upper respiratory airways, lung infection is the most common complication. Most infected patients are asymptomatic or experience mild or moderate form of the disease (80 %). A lower proportion (15%) develop severe pneumonia with variable level of hypoxia that may required hospitalization for oxygen therapy. In the most severe cases (5%), patients evolve towards critical illness with organ failure such as the acute respiratory distress syndrome (ARDS). At this stage, invasive mechanical ventilation is required in almost 70 % and the hospital mortality rises to 37 %. Immune cells are key players during SARS CoV-2 infection and several alterations have been reported including lymphocytes (T, B and NK) and monocytes depletion, and cells exhaustion. Such alterations were much more pronounced in patients with the most severe form of the disease. Beside, a dysregulated proinflammatory response has also been pointed out as a potential mechanism of lung damage. Finally, COVID-19 is associated with an unexpectedly high incidence of thrombosis which probably results from the viral invasion of endothelial cells. The investigators aim to explore prospectively the alterations of innate and adaptive immune cells during both the acute and the recovery phase of SARS CoV-2 pneumonia. Flow and Spectral cytometry will be used to perform deep subset profiling focusing on T, B, NK, NKT, gamma-gelta T, monocytes and dendritic cells. Each specific cell type will be further characterized using markers of activation/inhibition, maturation/differenciation and senescence as well as chemokines receptors. T-cell memory specificity will be explore using specific SARS CoV-2 pentamer. Platelet activation and circulating microparticles will be explore using flow cytometry. Serum SARS CoV-2 antibodies (IgA, IgM, IgG), serum cytokines, and serum biomarkers of alveolar epithelial and endothelial cells will be analyze using ELISA and correlate with the severity of the disease.

A cross-sectional study is expected to conducted by inquiring about the history, diagnosis results and medication details of respiratory diseases of the outpatient pediatric patients with respiratory diseases in the pediatric departments at specialist children's hospital at the second class and above, general hospitals and maternal and child healthcare hospitals. About 10,000 electronic questionnaires are expected to be collected in total, with about 100 participating hospitals and 100 electronic questionnaires from each participating hospital.Diagnosis and treatment information of pediatric patients are expected to be collected in the third week in April, July and October 2021 and in January 2022.

Pulmonary hypertension (PH) is a complex condition that may be related to many clinical conditions. It is a serious disorder with a high morbidity and mortality rates. PH is classified into five groups according to clinical characteristics, pathological findings, hemodynamic characteristics and treatment response (Galie N, et al., 2016). These five groups include pulmonary arterial hypertension, PH due to left sided heart disease, PH due to lung disease and/or hypoxia, chronic thromboembolic pulmonary hypertension, or other pulmonary arterial obstruction and PH with unclear and/or multifactorial mechanisms (Simonneau G, et al., 2013). PH is a major complication of several hematologic disorders including myeloproliferative neoplasms (MPNs). MPNs are a group of diseases characterized by uncontrolled proliferation of at least one myeloid series due to an abnormal hematopoietic cell clone. There are different types of MPNs including polycythemia vera (PV), essential thrombocythemia (ET), primary myelofibrosis (PMF) & chronic myeloid leukemia ( CML). Myeloproliferative neoplasms (MPNs) are included in group 5 PH (Arber DA, et al., 2016). This study will analyze the clinical and laboratory data of MPNs patients and correlate them with development of PH in these patients aiming to identify parameters that can predict PH in MPNs patients and thus, identifying MPNs patients at highest risk for PH who require close monitoring & screening for PH hoping that early detection and management of PH in MPNs patients can improve morbidity, prognosis and survival in those patients