View clinical trials related to Echocardiography.
Filter by:To compare between the impact of echocardiography guided fluid resuscitation and clinically guided fluid resuscitation on critically ill patients in hospital outcome.
This study will use contrast echocardiography to assess the accuracy of a new non-invasive imaging method for subharmonic aided pressure estimation (SHAPE) compared to simultaneously acquired intra-cardiac pressures measured invasively during cardiac catheterization. This study is designed to verify that contrast echocardiography using the SHAPE method, already proven in a canine model and tested in a human pilot study can be used as a surrogate for cardiac catheterization with sufficient accuracy to allow clinical applicability in humans.
The fundamental hypothesis of this project is that real-time intracardiac pressures can be monitored and quantified noninvasively in humans using a novel contrast-enhanced ultrasound technique called subharmonic-aided pressure estimation (SHAPE).This study will use contrast echocardiography to assess the accuracy of SHAPE compared to simultaneously acquired intracardiac pressures measured invasively during cardiac catheterization. This study is designed to verify that contrast echocardiography using the SHAPE method, already proven in a canine model and tested in a human pilot study can be used as a surrogate for cardiac catheterization with sufficient accuracy to allow clinical applicability in humans.
While Drug Induced Sleep Endoscopy (DISE) in patients with obstructive sleep apnea syndrome (OSAS) apnea and hypopnea occur. Because of the induced phases of apnea in a controlled setting it is possible to evaluate the related pathophysiology of apnea. We plan to correlate the Patient State Index (PSI) and other physiologic parameters with phases of apnea and hypopnea.
This study evaluates the effect of the use of nasal CPAP in the cardiac function, measured by strain and TEI index, in patients with type 2 diabetes mellitus, obstructive sleep apnea and obesity. In order to do so, 76 patients will be studied, half will use sham CPAP and half will use therapeutic CPAP for three months, with echocardiogram, laboratory studies, ambulatory monitoring of arterial tension and sleep study before and after CPAP use.
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.
This is a pilot prospective cohort study, in adult female subjects 18-85 years old with a diagnosis of invasive breast cancer who are planned for anthracycline-inclusive chemotherapy and followed up for a time period of 6 months post completion of anthracycline chemotherapy. They will participate in blood and imaging tests with a goal of determining the best method for predicting the occurrence of cardiotoxicity in this subpopulation.
Given the increase in the number of PAC implants or long-term catheters, and the ease of access to cardiac ultrasound in the operating theaters, the investigator thought to use ultrasound to PAC or long-term catheters. The investigator considers cardiac echocardiography through its costal pathway to locate the correct positioning of the distal end of the catheter in a manner equivalent to the scopic locating with all the side effects of the irradiation and with Equivalent efficiency
The objective of this study is to improve the diagnosis level of fetal congenital heart disease by the multi-center collaboration in China.
After a basic training to echocardiography, emergency physicians will have to answer simple clinical questions about circulatory failure mechanisms. The objective of the study is to assess the agreement between these answers and those of the expert physician in patients admitted in the emergency department with a circulatory failure due to sepsis or not. Emergency physicians will volunteer to take part in a basic training on echocardiography. The training will include 4 hours of theory, 2 hours of interactive clinical cases and 6 hours of tutored practice at patients' bedside (10 to 15 examinations). The objective of the practice sessions will be to learn the technical grounds of transthoracic echocardiography (TTE), the different views and to identify the anatomical structures. The second part of the study will start after the training. Each eligible patient will be successively assessed by two investigators: one emergency physician recently trained and the expert physician. The echocardiography will be performed as soon as possible in the emergency department before or after the initiation of treatment without delaying it. The order of hemodynamic assessments will be random depending on the availability of the investigators; both assessments will however be performed within 30 minutes. Each investigator will independently read the echocardiography in real time at patients' bedside. They will then answer a limited list of standardized questions using two-choice answers or predefined choices. Finally investigators will choose a therapeutic proposition among a predefined list based on the answers. Only the results of the echocardiography performed by the expert physician will be used in patient management.