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Acute Cor Pulmonale clinical trials

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NCT ID: NCT04628195 Completed - Covid19 Clinical Trials

Cardiac Performance in Mechanically Ventilated COVID-19 Patients

Start date: April 1, 2020
Phase:
Study type: Observational

Although COVID-19 affects primarily the respiratory system, several studies have shown evidence of cardiovascular alterations. Increased troponin levels were observed in a significant proportion of patients and this alteration was associated with higher mortality. In addition, case reports of cardiogenic shock or fulminant myocarditis have been communicated. Likewise, pulmonary embolism (PE), right ventricle dilation, and acute cor pulmonale (ACP) have also been described. Therefore, investigating cardiac function in COVID-19 is highly relevant, particularly in critically ill patients who are usually under sedation and mechanical ventilation, which may further impair cardiovascular function. Thus the objective is to determine the prevalence of left ventricle dysfunction and acute cor pulmonale, and its association with respiratory mechanics, in 100 consecutive critically ill COVID-19 patients, who were assessed with critical care echocardiography (CCE) within the first 24 hours of mechanical ventilation.

NCT ID: NCT02027129 Completed - Clinical trials for Acute Respiratory Distress Syndrome

Physiological Study of Low-frequency HFO/HFO-TGI and High-frequency HFO

Start date: January 2014
Phase: Phase 1
Study type: Interventional

Recent data from large trials of high-frequency high frequency oscillation (HFO) without a cuff leak vs, lung-protective conventional ventialtion (CMV) failed to show any HFO-related benefit with respect to outcome. A possible explanation is that HFO increases the probability of right ventricular dysfunction due to the combination of high mean airway pressures (mPaws) and hypercapnia. In contrast, available preliminary data on low-frequency HFO-tracheal gas insufflation (TGI) with cuff leak vs. CMV are suggestive of an HFO-TGI related benefit. Low-frequency HFO-TGI with a cuff leak is associated with relatively low mean tracheal pressures and adequate control of PaCO2. Thus, the investigators intend to test the hypothesis that low frequency HFO +/- TGI with a cuff leak is associated with better right ventricular function relative to high-frequency HFO without a cuff leak.

NCT ID: NCT01757522 Completed - Clinical trials for Acute Respiratory Distress Syndrome

Detection of Right Ventricular Dysfunction by 2D Strain During Acute Respiratory Distress Syndrom (ARDS)

STRAIN
Start date: January 3, 2013
Phase:
Study type: Observational

Acute respiratory distress syndrome (ARDS) and mechanical ventilation can lead to right ventricular dysfunction and ultimately right ventricular failure by increasing pulmonary vascular resistances and pressure load. This can be prevented by modifying ventilator settings, using vasopressors or inotropes or even by prone positionning.But to do so, right ventricular dysfonction has to be detected. Echocardiography has emerged as a first line tool to diagnose right heart failure. Recently, strain analysis showed promising results to detect early right ventricle abnormalities in other settings such as pulmonary hypertension or scleroderma. We therefore decided to determine whether 2D strain could help detect early right ventricular dysfunction in ARDS.