Found 2,824 clinical trials
Lung Function Exercise Capacity and Health-Related Quality of Life After Severe COVID-19
Coronavirus disease 2019 (COVID-19) is a respiratory tract infection caused by a newly emergent coronavirus (SARS-CoV-2) that can progress to severe disease requiring hospitalization and oxygen support in around14% of the cases and 5% require admission in intensive care unit. The medium and long-term impact in survivors of severe COVID-19 …
Investigation of Antibody and Immune Responses to SARS-CoV-2 Proteins
SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19), has negatively impacted global health and requires more research to develop better tests and to improve disease treatment. The purpose of this research is to aid in the testing effort by collecting samples from people who have been diagnosed with COVID-19 …
Risk Literacy Among Portuguese Medical and Dentistry Students
This study is an online survey to assess risk literacy among students of the medical and dentistry faculties in Portugal. Risk literacy is the capability to understand and interpret statistical information, based on simple rules of thumb. The investigators assess the level of "medical risk literacy" among Portuguese medical and …
Comparison of Dual Task Gait Characteristics in Individuals With Amputation and Healty Individuals
In amputee, dual task has been found to cause a decrease in walking speed. However, there is no study of how gait characteristics are affected when the speed does not change. The aim of this study is to compare the time-distance characteristics of walking with single task, cognitive dual task, …
Hemodynamic Changes Due to Prone Position
Perioperative prone position may be associated with hemodynamic instability. The causes of instability have not yet been precisely elucidated. The aim of this study is to demonstrate physiological changes during prone positioning in healthy volunteers .
Non Exudative AMD Imaged With SS-OCT- Extension
The investigators wish to better understand the role of the choriocapillaris (CC) in the formation and progression of non-exudative in age related macular degeneration (armd) by imaging the retinal pigment epithelium (rpe) and the choroidal microvasculature and by studying their inter-dependence to determine if the loss of the CC could …
Role of Children in Transmission of COVID-19 to Immunocompromised Patients
This is a study of immunosuppressed individuals living in households with and without children to assess the role of household contact with children in the transmission of SARSCoV-2 to immunocompromised individuals. Through careful collection of epidemiological data in combination with biological specimens, risk factors for SARS-CoV-2 in immunocompromised individuals will …
Design and Implementation of the Pediatric Liver Transplantation Biobank
The purpose of the pediatric liver transplant biobank is to systematically collect clinical specimens from pediatric end-stage liver disease. It is expected to contribute to the research and development of paediatric end-stage liver disease in the future.
Influence of Vater's Ampulla Morphology on ERCP
Determine the influence of the papilla's morphology on the various outcomes of endoscopic retrograde cholangiopancreatography (ERCP), namely on the success of biliary cannulation, on complications, and on the need to use rescue cannulation techniques;
Cardiac Biomarkers in Preeclampsia: Prediction of Disease and the Risk of Future Cardiovascular Events in Survivors
SUMMARY Background: Improvements in the management and prevention of obstetric haemorrhage and sepsis, in addition to magnesium sulphate for preeclampsia have led to significant reduction in global maternal mortality rates; thus leaving increasing number of survivors of preeclampsia than previously. Preeclampsia is associated with inflammatory changes that alter vascular integrity …
