View clinical trials related to Dyspnea.
Filter by:Researchers are examining the diagnostic utility of an exercise cardiac MRI (eCMR) in the assessment of cardiac dyspnea (shortness of breath).
Point-of-care ultrasound in patients with dyspnoea has been shown to alter patient treatment and the time to correct treatment when performed in emergency departments. In Denmark, physician-staffed ambulances are sent to citizens with severe ABCD symptoms including dyspnoea. Hence, there is a potential for correct diagnostics and appropriate treatment already in the citizens' own home or en route to the hospital. This study aims to evaluate the clinical performance of prehospital point-of-care ultrasound in patients with dyspnoea.
The pilot/feasibility study evaluates the ability of High Velocity Nasal Insufflation (HVNI) therapy to facilitate ambulation and mobilization in patients experiencing shortness of breath, as compared to simple oxygen therapy.
Researchers are trying to test the effectiveness and feasibility of a multicomponent lifestyle intervention to support weight loss decreases dyspnea in obese people with chronic lung disease and clinically significant breathlessness.
The performance of STIs and clinical scores alone and their combination to predict short term prognosis of acute decompensated heart failure.
Pulmonary embolism, or clots blocking the blood vessels of the lungs, is a common clinical condition requiring treatment with blood thinners. In most patients, recovery is complete. A small proportion of patients, however, develop complications (high blood pressure in the lung circulation, i.e. pulmonary hypertension). Persisting breathlessness during activity is a common symptom in many of these patients and leads to a reduced ability to engage in daily physical activity. The reason for this activity-related breathlessness remains uncertain and is the main question of the proposed study. Using new sophisticated technology, the investigators will determine the root causes of perceived breathing difficulty. The investigators will test the idea that breathlessness is fundamentally the result of increased drive to breathe from control centers in the brain. The investigators will measure drive to breathe by measuring the electrical activity descending from the brain to the main muscle of breathing - the diaphragm. The investigators will discover if the increased drive to breathe is due to accumulation of carbon dioxide in the blood as a result of poor blood perfusion of areas of the lung due to the effects of blockage by clots. The investigators also will investigate whether weakness and fatigue of the muscles of breathing, as a result of the high breathing demands that are present in patients with blood clots in the lungs, contribute to breathlessness. With this information it is hopeful that better treatment options will be developed to relieve this distressing symptom.
Shortness of breath is very common among patients on dialysis for kidney failure; however, its causes are often not understood. This study will explore the lungs and the heart of these patients to determine the causes of shortness of breath. The amount of salt in the body tissues, which tends to accumulate in dialysis patients and can also cause shortness of breath, will also be measured. Machines that exploit magnetic resonance, ultrasound and x-rays to take images of the body interior will be employed; in addition, breathing tests, questionnaires and blood tests will also be used. 20 patients on dialysis will be recruited and have two visits: one at the beginning of the study and one year later to observe any changes in the lungs, heart and salt accumulation over time.
This study assesses the potential of lung ultrasonography to diagnose heart failure.
Chronic Obstructive Pulmonary Disease (COPD) is a lung disorder commonly caused by smoking, which makes breathing more difficult. When COPD patients exercise, they are not efficient breathers and this leads to serious breathing difficulties, which often causes these patients to stop exercise at low intensities. Even though patients with a mild form of COPD have relatively well preserved lung function, they still have inefficient breathing during exercise. The investigators think that these patients have problems exchanging fresh gas (i.e., oxygen) into the blood stream because of poor lung blood vessel function. The investigators will test whether inhaled medications, specifically nitric oxide, can improve lung blood vessel function and decrease breathing difficulties during exercise. With this research, the investigators will understand more about breathing efficiency and lung blood vessel function in patients with COPD, and find out whether improving lung blood vessel function helps COPD patients breathe easier and exercise longer. Understanding the reasons behind the feeling of difficult breathing may lead to more effective therapy and improved quality of life in COPD patients.
An acute study carried out across three acute admissions units within Leicestershire. The study is aimed at discovery and validation of volatile organic compounds (VOCs) in exhaled breath. Participants will be recruited and tested within 24 hours of admission and once recovered, up to 6 months following discharge.