View clinical trials related to Lung Ultrasound.
Filter by:The goal of this observational study is to learn about the function of lung and diaphragm ultrasound during weaning from mechanical ventilation in COVID-19 patients. The aim of this study was that the lung ultrasound score and diaphragm muscle mobility could be a potential predictive factor of weaning success.
Background: Intraoperative hypotension increases 30-day mortality and the risks of myocardial injury and acute renal failure. Patients with inadequate volume reserve before the induction of anesthesia are highly exposed. The identification of latent hypovolemia is therefore crucial. Ultrasonographic measurement of the inferior vena cava collapsibility index (IVCCI) is able to detect volume responsiveness in circulatory shock and growing evidence support the theory that higher IVCCI can predict intraoperative hypotension. The aim of the present study is to evaluate the potential benefit of an ultrasound-based protocol for preoperative fluid optimization. The investigators will perform a randomized-controlled study involving elective surgical patients. An ultrasound-based protocol (USP) arm and a conventional fluid therapy group (CFT) are to be formed. Ultrasound examinations will be performed twice in both groups: 2 hours and 30 minutes preoperatively. The inferior vena cava and the anterior lung fields will be scanned. In the USP group the participants will receive fluid therapy according to the ultrasonographic findings: high level of IVCCI and absence of signs of pulmonary edema will indicate fluid therapy. In the CFT group the attending anesthesiologist (blinded to the results of ultrasonography) will order fluid therapy on the basis of daily routine and clinical judgement. The investigators will evaluate the incidence of intraoperative hypotension (primary outcome), postoperative metabolic status and organ functions and the amount of the administered intravenous fluids in both groups.
Determination of the hemodialysis ultrafiltration volume is guided by the clinician's estimate of dry weight. A poor estimate of this dry weight may result in insufficient fluid depletion causing a state of volume overload, which may be associated with long-term left ventricular failure, high blood pressure and excess of mortality. The diagnosis of fluid overload in haemodialysis patient is routinely based on clinical examination which consists of cardiopulmonary auscultation and edema palpation of limb member. Clinical examination can be completed by paraclinical examinations, and bioimpedance is an objective tool that assess fluid overload state. This test provides an individualized hydration status and fluid overload based on normal extracellular volume considering body composition. Echocardiography allows an accurate assessment of blood volume status by simultaneous studying left ventricular filling pressures, systolic pulmonary artery pressure and the diameter of the inferior vena cava. Lung ultrasound analyses the B-lines defined as artefactual images resulting from contact between air in "alveoli" and water in "septa". It can estimate pulmonary congestion. The aim of the study is to evaluate the lung ultrasound using "8 sites" score accuracy for estimating fluid overload of patients before hemodialysis session.
Lung ultrasonography (LUS) is also used in COVID 19 pneumonia for diagnostic and follow-up purposes.It has been demonstrated in different studies that it can be used for pathologies in pleural and lung tissue. LUS was applied by different researchers by dividing the lungs into 12 and 14 regions and the results were shared.
Lung ultrasonography has been used for diagnosis and treatment in many departments including intensive care before the pandemic. The gold standard method for the diagnosis of pneumonia is still chest tomography. Ultrasonography, which has advantages over tomography, has also been tried to be used in covid 19 pneumonia.
Covid-19 (English acronym meaning coronavirus disease 2019) is an emerging infectious disease caused by a strain of coronavirus called SARS-CoV-2. The current pandemic has resulted in a significant number of admissions in the emergency room (ER) due to suspicion of COVID-19 infection. Use of lung ultrasound is standard practice to diagnose acute respiratory failure in ER. Recently, typical lung ultrasonographic characteristics of COVID-19 disease has been described. The investigators demonstrated that the association of 4 signs in pulmonary ultrasound associated with a clinical sign (COVILUS score) could predict the occurrence of a positive RT-PCR in patients suspected of COVID-19 infection admitted to the emergency room. The investigators are going to conduct a new study to validate this COVILUS score in this type of patient. The main objective will be to validate the diagnostic performance of lung ultrasound in patients admitted to the emergency room with suspected COVID19 infection.
The QUICK study main aim is to assess the predictive value at Day 1, of a model built on lung ultrasound (LUS) and clinical data, both recorded at hospital admission of COVID-19 patients.
Covid-19 (English acronym meaning coronavirus disease 2019) is an emerging infectious disease caused by a strain of coronavirus called SARS-CoV-2. The current pandemic has resulted in a significant number of admissions in the emergency room (ER) due to suspicion of COVID-19 infection. Use of lung ultrasound is standard practice to diagnose acute respiratory failure in ER. Recently, typical lung ultrasonographic characteristics of COVID-19 disease has been described. During the COVID-19 pandemic, the use of this tool could be of interest in order to allow an early, simple and reliable triage in patients with suspected COVID-19 infection admitted in ER. In addition, the visualization of early signs in specific areas could be a predictive marker of the severity of the disease. The objective of this project will be to study the association between the signs on lung ultrasound and the result of RT-PCR in patients with suspected COVID-19 infection in the ER.