
Ventilation During Cardiopulmonary Bypass (CPB) for Cardiac Surgery
Pulmonary AtelectasisDuring most types of heart surgery cardiopulmonary bypass (CPB) is used. CPB enables blood to be directed away from the heart and the lungs and pumped through the body while the heart is not beating. Surgery on the heart easier when it is not beating and bloodless area. Generally during CPB the lungs do not need to be ventilated, as no blood is flowing through the lungs and the body received oxygen from a machine (oxygenator) attached to the CPB pump. In this study we are investigating the difference in lung collapse after heart surgery in patient who did have their lungs ventilated during CPB, compared to patients who did not have their lungs ventilated during CPB. We will use lung ultrasound scans to determine the degree of lung collapse at various time periods before and after the heart surgery. We will also investigate if ventilation during CPB will affect: a.) the rate of lung infection or pneumonia after the operation b.) the time it takes for a patient to have the breathing tube removed in the intensive care unit after the operation c.) the time for a patient to be discharged home from the hospital d.) the concentration of oxygen in the blood after the operation.

Intermittent Versus Continuous Infusion Meropenem in Cystic Fibrosis
Cystic FibrosisThe purpose of this study is to compare the incidence of nausea and vomiting following short intermittent versus prolonged intermittent infusion of meropenem.

Chest Computed Tomography (CT) Screening Study With Antibody Testing
Lung CancerThe purpose of this study is to assess the value of EarlyCDT-Lung test and CT scan both in lung cancer detection and potential health economic outcomes.

Systemic Endothelial Abnormalities in COPD
Chronic Obstructive Pulmonary DiseaseThe purpose of this project is to validate the peripheral arterial pressure waveform measurements technique of RAAP (radial artery applanation tonometry), in patients with moderate and severe COPD (Chronic Obstructive Pulmonary Disease), and to assess the degree of systemic endothelial dysfunction in these patients compared to cigarette smokers with normal lung function and non-smokers with normal lung function.

Cytokines and Acute Phase Reactants as Markers of Pulmonary Tuberculosis Treatment
Pulmonary TuberculosisTuberculosis is a highly prevalent chronic infectious disease caused by Mycobacterium tuberculosis. Cytokines are important biological mediators that regulate immune and inflammatory responses against the bacilli, witch include the acute phase response. Besides this, it becomes essential to determine markers of healing lesions, once this is currently carried out based on the clinical, radiological, and negative bacterioscopy.

Role of Vascular Endothelial Growth Factor (VEGF) in Acute Lung Injury/Adult Respiratory Distress...
Respiratory Distress SyndromeAdultUnderstanding the role VEGF plays in ARDS consequently provides an ideal opportunity to discover new therapies for ARDS.

Incidence of Opioid-Induced Respiratory Depression in Medical and Trauma Patients
Respiratory DepressionSedationThe primary objective of this prospective, blinded observational study is to correlate assessment of sedation and respiratory status with capnography and pulse oximetry monitoring in hospitalized adult medical and trauma patients receiving patient-controlled analgesia (PCA) or nurse administered intravenous (IV) opioids for acute pain. Nursing assessment of respiratory status and sedation level will be correlated with capnography and pulse oximetry values as technology-supported monitoring to identify respiratory depression and opioid-induced sedation. The secondary objective is to identify capnography and pulse oximetry values that correlate with respiratory decompensation and opioid-induced sedation in medical and trauma patients on the general care floor.

Clinical Echography in Emergency Prognostic Evaluation of Pulmonary Embolism: ECU -EP Study.
EmbolismPulmonaryPulmonary Embolism (PE) is a frequent disease, the third cause of cardiovascular death after stroke and myocardial infarction. According to European guidelines of European Society of Cardiology (ESC) and of European Respiratory Society (ERS), the prognostic stratification of PE severity is mandatory as soon as PE is diagnosed. This stratification includes the hemodynamic status, and specific tools : the assessment of the sPESI score, and the evaluation of PE's impact on right ventricle (RV) : increased biomarkers (troponin, BNP) and right ventricle/left ventricle (RV/LV) ratio. the RV/LV ration may be evaluated ideally by transthoracic echo (TTE), or by CT scan. Unfortunately, only 10% of patients with PE are evaluated with TTE by a cardiologist in the initial time of PE diagnosis. Hence, the CT scan is the most frequent way to assess RV/LV ratio. However, CT is not possible for all patients (patients with contra-indication) or may have difficulties to provide a clear assessment because of technical issues. Then, there is a need for morphological evaluation of RV as soon as PE is diagnosed, in every clinical setting. The improvement in technologies allowed the development of clinical echography (CE) in emergency departments. CE is already available, non-invasive, less expansive, and may be a good way to assess RV/LV ratio in patients with PE diagnosed in emergency departments. The investigators propose a prospective, multicenter study to assess the sensitivity of CE in patients with PE, compared to CT scan to detect RV/LV ≥0.9.

Epidermal Growth Factor Receptor (EGFR) T790M Mutation Testing Practices in Hong Kong
Non-small Cell Lung CancerTo describe the T790M mutation status of patients with locally advanced/metastatic NSCLC who progressed on previous EGFR TKI treatment in a real-world setting.

Coronavirus-19 (COVID-19) and Related Outcomes in School Aged Children (ABC Health Outcomes in Children)...
Covid19; MIS-CThis is a prospective, observational study with a primary objective of determining the incidence of non-severe and severe COVID-19, including MIS-C, among eligible children who are diagnosed with COVID-19 and consent (or assent) to collection of data on risk factors using a unique direct-to-participant, direct-to-family, and direct-to-community approach. Secondary and exploratory objectives include risk factors of severe disease and quality of life (QoL).