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

The purpose of this study is to evaluate the feasibility of tracking breathing during sleep with non-contact sensors (for example, microphones or wireless movement sensors). The investigators will use the data collected with these sensors to develop algorithms for tracking breathing during sleep. The investigators will assess the performance of the algorithms by comparing automatic output against manually-generated labels.

The purpose of this study is to assess the value in terms of sensitivity, specificity and likelihood ratio of the stress echocardiography in the screening of pulmonary arterial hypertension in patients with systemic sclerosis and indirect signs of pulmonary arterial hypertension.

Pharmacokinetics for peramivir have not been well characterized in patients undergoing continuous renal replacement therapy CRRT - either Continuous veno-venous hemofiltration (CVVH) +/- dialysis (CVVHD). CRRT is commonly utilized in the hospital setting for patients with acute kidney injury for metabolic correction, slow continuous fluid removal, and to maintain hemodynamic stability. CRRT commonly alters drug disposition and clearance, and dosing regimens often need alteration in patients receiving CRRT. Doses required to generate predictable serum concentrations can be calculated from known patient parameters such as replacement fluid and dialysate flow rate, sieving coefficients, and desired serum concentrations. However, pharmacokinetic studies must be performed in CRRT patients to generate drug removal constants or sieving coefficients. Of note, the clearance of drugs by conventional hemodialysis cannot be used to extrapolate clearances with CRRT secondary to differences in ultrafiltration rates and dialysis membranes. The investigators propose an open label study to obtain peramivir pharmacokinetics in patients undergoing CRRT.

A retrospective database analysis to evaluate the impact of omalizumab on the use of corticosteroid, emergency-department visits and hospitalizations among patients with uncontrolled asthma and using high-dose Inhaled Corticosteroids (ICS) prior to initiating omalizumab.

The purpose of this study is to evaluate the feasibility of aspiration samples for mutational analysis in patients with a non-small cell lung cancer (NSCLC).

The purpose of the study is to create a clinical pneumonia tool that can be used to predict the cause of community-acquired pneumonia, which is a lung infection that began outside of the hospital in critically ill children therefore limiting unnecessary antibiotic use. The investigators will enroll critically ill children admitted with acute respiratory failure and suspected pneumonia. Each patient will receive a clinical pneumonia score blinded from culture and respiratory viral panel results. All care after samples obtained will be at the discretion of the PICU team. The investigators believe that our clinical pneumonia scale with procalcitonin will accurately designate viral from bacterial etiologies.

Pleural effusion in lung cancer patients is one of the symptoms of metastatic disease that is inoperable and cannot be treated. Identification of cancer cells in the pleural effusion of lung cancer patients is a cytological test and serves as an initial diagnosis. These cells can then be used to prepare a cell block for staining and further tests. In some research despite clinical suspicions, the cytological diagnosis is negative, due to the specimen containing too few cells or damage to the cells whilst the specimen is processed. A new method of identifying rare cells in a fluid is by immunomagnetic separation. Using this method, an antigen binds to proteins in the cell wall that are unique to tumor cells. When the fluid is passed through a magnetic field, separation occurs of the cells with the magnetic tags from the remainder of the cells. The separated cells can then be stained or cultured. The currently approved method of immunomagnetic detection has been approved for clinical use in patients with breast cancer, cancer of the intestines and prostate cancer. An Israeli Biotech company has developed an advanced technology that allows identification of a larger number of cells without causing morphological damage to the cells. The purpose of the current study is to examine the technique of immunomagnetic separation in pleural effusion of lung cancer patients in comparison to the cytological tests. In the future it is hoped that a larger number of patient samples will be included and further characterization of the cells will be possible to be compared to the clinical and cytological characteristics.

The investigators are trying to understand the role of specific genes in the function of airway surface cells. The investigators know that there are some common genetic markers that are associated with various lung diseases. However, most people with these genetic markers never develop any evidence of lung disease, so it is not understand how or if these markers play a role in disease. Investigators are asking healthy people to provide three (3) tubes of blood as well as a sample of cells from their nose. Investigators will use the blood sample to provide genetic information (specifically, presence or absence of alleles known to be associated with pulmonary fibrosis). Nose cells from individuals with the genetic markers that investigators are studying will be grown in the the lab to allow investigators to learn more about how the cells respond to various forms of environmental stress, such as exposure to cigarette smoke. The goal of this study is to understand how specific genes affect airway cell function.

The goal of this study is characterize the changes in bacterial diversity of the upper respiratory tracts of infants with cystic fibrosis (CF). Another goal is to determine when CF patients become colonized with pathogenic bacteria that are responsible for the lethal lung damage in children with CF. Ten subjects will be recruited into the study. Throat swabs will be collected at 6-8 weeks of age, 3 months, 6 months, 9 months, and 12 months of age in order to chart any changes in the bacterial populations of the respiratory tract. Clinical data will also be collected to evaluate the possible influence of external factors on changes in the microbial communities. This study will provide preliminary data on whether probiotics can eradicate the colonization of the respiratory tract by pathogenic bacteria.

The purpose of this study is: To study the clinical usefulness of nurse-performed ultrasound and echocardiographic examinations in a cardiac intensive care unit. To study reproducibility of nurse-performed ultrasound and echocardiographic examinations in a cardiac intensive care unit. To study which ultrasound measure that best correlate with the amount of pleural effusion.