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Portal flow pulsatility detected by Doppler ultrasound is an echographic marker of cardiogenic portal hypertension from right ventricular failure and is associated with adverse outcomes based on previous studies performed at the Montreal Heart Institute. This multicenter prospective cohort study aims to determine if portal flow pulsatility after cardiopulmonary bypass separation is associated with a longer requirement of life support after cardiac surgery.
This is a Phase 2, single-center, randomized placebo controlled trial of famotidine (an H2 receptor antagonist) in adults with pulmonary arterial hypertension. The study will evaluate the safety and clinical efficacy of a 24-week course of famotidine.
The primary purpose of this study is to investigate the evolution of Right Ventricular (RV) function before and after left ventricular assist device (LVAD) implantation, using novel echocardiographic quantification of RV size and function in combination with comprehensive hemodynamic, laboratory and clinical parameters. The findings of the study will enhance prediction of early and late development of postoperative right-sided heart failure (RHF) and subsequent mortality and morbidity. The secondary purpose of the study is to combine echocardiographic, hemodynamic, laboratory, and clinical data to define optimal management strategies of RHF after LVAD implantation.
The PREPARE-MVR (PRediction of Early PostoperAtive Right vEntricular failure in Mitral Valve Replacement/Repair patients) Study aims to evaluate those preoperative factors which can predict the early postoperative right ventricular failure or determine the functional shift seen in right ventricular function after mitral valve replacement/repair. The PREPARE-MVR study focuses mainly on echocardiographic (both conventional and advanced) parameters and includes right heart catheterization intraoperatively and in the early postoperative period as gold standard method.
This is a Phase 1b/IIa, single centre, non-randomised open-label uncontrolled study to assess safety, effect and PK of oral CRD-102 in patients with RHF associated with the presence of an LVAD.
The goal of this interventional crossover study, in intubated and mechanically ventilated Acute Respiratory Distress Syndrome (ARDS) patients, is to compare two positive end-expiratory pressure (PEEP) titration techniques regarding: respiratory mechanics, gas exchange, changes in aeration, ventilation/perfusion matching its impact on cardiac function, especially the right heart (RH). The PEEP titration techniques are: PEEP selection based on low PEEP/high FiO2 table ("PEEPARDSnet") and lung recruitment maneuver (LRM) plus PEEP titration("PEEPLRM").
Millions of Americans seek emergency care for acute shortness of breath, and many undergo computerized tomographic pulmonary angiography (CTPA) testing that is negative for acute disease. Management of patients with persistent shortness of breath despite normal testing continues to pose a challenge for clinicians. Right ventricular (RV) failure is a common cause of dyspnea that brings patients to the emergency department (ED), however, it is often not considered in the differential diagnosis, remains unrecognized, or patients are not properly followed up once diagnosed. Delays in diagnosis and management of RV failure are associated with poor outcomes. The investigators propose a novel clinical pathway, which entails identifying and enrolling patients with RV failure in the ED, then referring them to a specialized cardiovascular clinic where they will receive a standardized evaluation and management plan. Our hypothesis is that management of RV failure, through this pathway, will improve patient outcomes when compared to standard care. The primary outcome will assess 1-year unscheduled healthcare visits.
The investigators research the early improvement of fluid retention and mid-term prognosis through the administration of tolvaptan for the patient with tricuspid regurgitation and right heart failure after left heart valves replacement.
The use of Impella RP is safe, feasible and provides a hemodynamic benefit in patients with right ventricular failure.
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.