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

EGFR mutations plays an essential role in EGFR-TKIs treatment. However, for some patients, tissue samples are not available. The purpose of this study is to determine whether blood sample is feasible for EGFR mutation detection.For late stage NSCLC, we hypothesis plasma sample is an alternative for detecting EGFR mutations.

Clots that develop in the deep veins of the legs or the lungs can result in pain, heart and lung disease and may lead to death if unrecognized or not treated. Risk factors for developing clots include surgery, hospitalization and/or being immobile. Up to 10 to 40% of people may develop a clot during or after their hospital stay or surgery, and sometimes these clots do not cause symptoms. In order to help reduce the risk of developing a clot in the legs or lungs, many people undergoing surgery receive a small dose of a blood thinner in hospital after their surgery is completed. Although prescription of a low dose blood thinner is routine practice after most surgeries, the risk or benefit of blood thinners after kidney transplant surgery is still not clear. Given this, many transplant physicians differ in prescribing practices of low dose blood thinners after kidney transplant surgery. More information is needed about the risk of clotting and bleeding in people after kidney transplant surgery so that physicians can become more unified in deciding whether a low dose blood thinner would protect patients after kidney transplant without producing harm. The REPORT study is designed to examine the risk of clotting in the legs or lungs in people after kidney transplant surgery as well as the risk of bleeding. Ultrasounds of the legs will be performed at various time points after surgery for up to one year to screen for blood clots. People participating in this study will also be screened and monitored for bleeding after surgery. Although this study will also examine the prescription practices of physicians, no blood thinners will be given or withheld from participants as a result of this study. Physicians will prescribe blood thinners as per their usual practice after kidney transplant. Overall, the goal of the study is to find out how frequent clotting and/or bleeding is after kidney transplant surgery, which will help in making recommendations regarding the use of low dose blood thinners in people after their surgery. Ultrasound scanning of the legs is a safe test that does not cause physical pain and has no risk of causing injury. Participation in this study will provide the benefit of additional monitoring with several ultrasound tests after surgery, screening for clots in the legs which can cause health risks and even death if unrecognized. If a clot is found, it will be treated promptly and according to current medical standards under the care of a specialist. In the long term, the results of this study will help improve health care delivery to people undergoing kidney transplant with the goal of decreasing potential complications such as clotting and/or bleeding. Currently, there are no guidelines available to guide physician's in the use of a low dose blood thinner after kidney transplant surgery. This study will help determine the risk of clotting or bleeding and help us make recommendations that will reduce potential risks and complications for people undergoing kidney transplant in the future.

Metabolomics is a large-scale approach to monitoring the compounds involved in cellular processes. It may reflect changes in biological function. Collection of exhaled breath is a newly developed, noninvasive method that may allow clinicians and researchers to assess biochemical profiles in the airway. This study is conducted for the metabolomic analysis of the exhaled gas in patients with Chronic Obstructive Pulmonary Disease (COPD) and bronchiectasis.

The investigators intend to study the prevalence of obstructive apnea in patients submitted to partial laryngectomy by larynx cancer. Volunteers will be evaluated using polissonografy. We will try to correlate the residual glotic area with the number of apneas per hour.

Acute eosinophilic pneumonia (AEP) is diagnosed by cell count analysis of bronchoalveolar lavage fluid. However, the performance of bronchoscopy is not easy for patients with AEP, because they usually have hypoxia. Exhaled nitric oxide (FeNO) is usually elevated in the patients with eosinophilic inflammation such as asthma, but there is no previous studies FeNO in the patients with AEP. Investigators hypothesized that FeNO elevated significantly in patients with AEP, and FeNO can be used as non-invasive diagnostic method in patients who are clinically suspected with AEP, especially when the performance of bronchoscopy is difficult.

Bronchiectasis can be defined as an abnormal and irreversible dilatation of the bronchial tree due to repeated cycles of inflammation and infection, resulting in progressive loss of lung function. The surgical treatment by pulmonary resection or even lung transplantation is indicated in cases of bronchiectasis primary nonresponsive to appropriate medical treatment, or when associated with serious complications. There are few literature data on the influence of bronchiectasis in exercise capacity, quality of life and functional capacity, and the impact of lung resection in patients with this diagnosis. The primary objective of this study is to evaluate prospectively the impact of lung resection on exercise capacity in patients with clinical and radiological diagnosis of bronchiectasis. The secondary objective of this study is to evaluate the impact of lung resection on quality of life and lung function and to analyze the the presence of predictors of postoperative functional deterioration and the occurrence of complications.

Primary To determine the presence and frequency of novel and known UGT1A6 and UGT2B7 polymorphisms in healthy Chinese, Malay and Indian subjects. To determine the presence and frequency of novel and known UGT1A6 and UGT2B7 polymorphisms in Chinese lung cancer patients with squamous cell and adenocarcinoma subtype. To analyze the functional variations in UGT1A6 and UGT2B7 polymorphisms. Secondary 1 To study the correlation of UGT1A6 and UGT2B7 polymorphisms with lung cancer type.

The purpose of this study is to evaluate the role of stress echocardiography, compared to standard echocardiography in the early identification of pulmonary arterial hypertension in systemic sclerosis. To evaluate the role of BNP in this setting.To analyze data recorded with respect to the parameters commonly used for SSc evaluation (eg thorax HRCT, pulmonary function tests + DLCO, nailfold capillaroscopy, etc); these parameters are available starting for 1999.

Detect the PHOX2B Mutation-confirmed congenital central hypoventilation syndrome

Although patient-ventilator asynchrony is a frequent phenomenon, its course following management is unknown. As the aid of a data recording system, we try to observe the consequence of patient-ventilator asynchrony following management. Our target is aimed at the patients with high asynchronization index ( > 10%) as this group of patients have been shown to have prolonged course in intensive care unit and are also prone to be tracheostomized