Elevated Left Atrial Pressure clinical trials

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

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NCT ID: NCT04096807 Completed - Clinical trials for Elevated Left Atrial Pressure

Pulmonary Vein Diameter and Collapsibility Measured by TEE to Predict Elevated Left Atrial Pressure in Cardiac Surgery

POGETO

Start date: August 8, 2019
Phase:
Study type: Observational

Left atrial pressure (LAP) is a crucial hemodynamic parameter during cardiac surgery. Elevated LAP leads to pulmonary edema and other cardiopulmonary complications. The pulmonary capillary wedge pressure (PCWP) measured by a pulmonary arterial catheter (PAC) is the gold-standard method to estimate LAP. However, the placement of a PAC is an invasive procedure associated with adverse events. Transesophagial echocardiophy (TEE) is a non-invasive method to estimate LAP during cardiac surgery. Pulsed Doppler mitral flow, pulmonary vein flow, tricuspid regurgitation peak flow and left atrial volume are validated parameters to estimate LAP. Nevertheless, these parameters are not always valid in cardiac surgery, mainly because of mitral valve pathology or prothesis. As the diameter and collapsibility of inferior vena cava is the recommended method for non-invasive right atrial pressure assessment in patients under mechanical ventilation, the investigators made the hypothesis that diameter and collapsibility of the pulmonary veins could be an additional method to estimate LAP during cardiac surgery. This has never been investigated in cardiology or cardiac surgery. In this prospective study, pulmonary vein diameter and collapsibility will be correlated to invasive PCWP to assess LAP perioperatively in 30 patients undergoing cardiac surgery