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Echocardiography, Stress clinical trials

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NCT ID: NCT04498299 Recruiting - COVID-19 Clinical Trials

Stress Echocardiography in Patients Recovery From Mild COVID-19 Illness

ECHO-vid
Start date: September 1, 2020
Phase:
Study type: Observational

With the appearance of the new SARS-COV2 virus, additional challenges are being imposed on the medical community after the resolution of acute COVID-19 illness, resulting in specific pathophysiologic mechanisms that while acutely damage the lung parenchyma might chronically impact the cardiopulmonary system. This study aims to investigate changes after mild COVID-19 illness in echocardiographic indices at rest and stress.

NCT ID: NCT04286854 Recruiting - Reference Values Clinical Trials

Echocardiographic Assessment of the Right Ventricle in Healthy Subjects During Stress Test in the Mexican Population

ECORVStressMx
Start date: April 1, 2020
Phase:
Study type: Observational [Patient Registry]

The echocardiographic indices of the right ventricle function vary significantly with demographic and anthropometric of each population factors and are associated with poor prognosis in several cardiovascular diseases. This study aims to investigate exercise-induced changes in echocardiographic indices of the right ventricle function in healthy volunteers and establish the reference values to the Mexican population.

NCT ID: NCT03180060 Completed - Coronary Disease Clinical Trials

Meta-Analysis of Stress Myocardial Perfusion Imaging

Start date: August 3, 2015
Phase: N/A
Study type: Observational

Background: Detection of coronary artery disease (CAD) is important due to its high prevalence and its medical and economic implications. Purpose: A systematic review of the diagnostic performance of stress echocardiography (Echo), SPECT, cardiac magnetic resonance (CMR), CT Perfusion (CTP) and PET versus invasive coronary angiography (ICA) or fractional flow reserve (FFR) using hierarchical summary ROC (HSROC) methods. Data Sources: MEDLINE, EMBASE and SCOPUS for literature published in English or Spanish from January 1970 to December 2015. Study Selection: For inclusion, studies had to meet the Cochrane guidelines, had to evaluate the sensitivity and specificity methods, and use ICA and/or FFR. Only those studies with STARD methodology ≥60% were included. Data Extraction: Ten investigators extracted patient and study characteristics and 4 resolved any disagreements.

NCT ID: NCT02240745 Completed - Clinical trials for Coronary Artery Disease

New Three-dimensional Methods of Analysis for the Detection of Coronary Artery Disease by Dobutamine Stress Echocardiography

3-DSE
Start date: November 30, 2014
Phase:
Study type: Observational

The investigators are going to recruit patients who have a scheduled elective coronary angiography and going to do a dobutamin stress echography (DSE) before the coronary examination. Next to a regular 2D-DSE, the investigators will perform an 3-dimensional DSE, incl ventriculography. In the interventional part (coronary angiography), they will measure each stenosis with fractional flow-reserve (FFR)and herewith graduate its stenosis severity.

NCT ID: NCT01179126 Recruiting - Clinical trials for Myocardial Infarction

Strategies of Revascularization in Patients With ST-segment Elevation Myocardial Infarction (STEMI) and Multivessel Disease

CROSS-AMI
Start date: September 2010
Phase: Phase 3
Study type: Interventional

Multivessel disease has been reported to occur between 40 and 60% of patients with ST-segment elevation myocardial infarction (STEMI) and has been associated to a worse prognosis. Multivessel revascularization offers a myriad of potential advantages as enhance of the collateral blood flow, greater myocardial salvage, the stabilization of other lesions that can be potentially vulnerable, and the achievement of a complete revascularization, factor that is associated with a better prognosis. On the other hand, the prolongation of procedural duration, the hazard of contrast induced nephropathy and the peri-procedural complications can limit the widespread of this practice. To date, very few observational studies have focused in the multivessel revascularization with disparity of results. Whereas ones have observed an increase of adverse cardiovascular events and thus not recommend it, others have shown neutral results. Stress echocardiography has been shown to be an adequate technique for the diagnosis of coronary artery disease and could be an appropriate tool for selecting the lesions that need to be revascularized because they induce large areas of ischemia. However, this technique has also limitations like the high operator-dependence. Therefore, the investigators sought to study if the complete multivessel revascularization of patients with STEMI treated by means of primary percutaneous coronary intervention (PCI) has an impact on prognosis compared to a strategy of treating only those non-culprit lesions that produce large areas of ischemia in a stress test.