View clinical trials related to Cardiac Output, Low.
Filter by:Cardiac output (CO) monitoring is an important tool in critically ill patients with haemodynamic instability. Traditionally, this has been accomplished using the pulmonary artery catheter (PAC). However, its use has been associated with various complications such as pneumothorax, arrhythmia, infection, pulmonary valve injury and embolism. This has led to the development of various minimally invasive cardiac output monitoring devices such as the oesophageal Doppler, PiCCO®, NiCCO® and FloTrac®. These devices however have their inherent limitations and though minimally invasive, are still not without risks to the patient. More recently a completely non-invasive CO monitoring device, NICOM Cheetah® has been introduced. Its use is based on thoracic bioreactance and it involves placement of 4 electrodes on either side of the thorax and it analyses changes in the phase of electrical voltage signal to the current applied across the thorax. Initial validation studies on the NICOM Cheetah® device revealed promising results. This study intends to compare cardiac output monitoring capabilities of the NICOM Cheetah® device using the FloTrac® CO monitor as a reference.
Automated software analysis now allows for quick estimation of cardiac output from the echocardiographic 5-chamber view. This study will validate the automated software method against pulmonary artery thermodilution and against conventional cardiac output measurement with echocardiography.
The investigators are interested in determining if there is a meaningful difference between two of the most commonly used medications used to improve the pumping function of the heart among critically ill patients admitted to the Coronary Care Unit (CCU) at the University of Ottawa Heart Institute (UOHI). To do this, the investigators will randomly assign patients who are felt to require use of these medications by their treating physicians to one of the two most commonly used agents in Canada: Milrinone or Dobutamine. Each patient will be closely monitored by their healthcare team, and their medication will be adjusted based on each patient's clinical status. Information from blood work (e.g. kidney and liver function, complete blood counts, and other markers of how effectively blood is circulating in the body), assessment of end-organ function (e.g. urine output, mentation), abnormal heart rhythms noted on monitoring and results of imaging studies (e.g. angiogram, echocardiograms.) will be collected for analysis. All patients will be followed for the duration of their hospital stay at UOHI.
This study evaluates the effect of heart-lung bypass on babies undergoing cardiac surgery. The investigators want to learn more about the inflammation that exposure to bypass creates in the body by studying markers of inflammation and cell injury in the bloodstream. Additionally, the investigators want to examine if these markers can predict which babies develop post-surgical complications. The hypothesis is that babies who undergo bypass will have higher levels of these markers than babies not exposed to bypass and that these markers will correlate with how the baby does clinically after surgery. This study will evaluate markers via blood sampling in babies with congenital heart disease who do not undergo cardiac surgery, those that undergo surgery without bypass, and those that undergo surgery with bypass. The overall goal is that this study will lead to useful biomarkers and lay the groundwork for future novel therapies aimed at improving outcomes for babies who require heart-lung bypass.
On the Intensive Care Unit doctors give a lot of fluid to patients in order to improve their blood pressure, amount of urine made or to let doctors stop drugs that are needed to keep blood pressure up. Doctors normally give patients 500ml of fluid over 25 minutes as standard, however it is very difficult to know if giving those fluids and how much fluid will help (it does in some but not others). If a person gets too much fluid this can also cause problems such as fluid in lungs, poor kidney function, or swelling in the limbs. The LidCo Rapid monitor lets the Intensive Care Unit (ICU) team know the amount of blood the heart pushes out with each beat (Stroke volume). It works by following the tracing off the arterial line (Blood pressure monitor) that has been inserted as part of the standard care of a patient on the ICU. It does not need any other invasive procedures or drug administration to work. This study is using this monitor to see if it can identify a method of improving the administration of intravenous fluids on the Intensive Care Unit. The study is looking to see if it can identify whether giving a small amount of fluid first identifies people who will benefit from more fluid and those that won't.
The purpose of this study was to compare CO measured by two easy to use non-invasive monitors, the esCCO (Nihon Kohden, Tokyo, Japan) to the Volume View (Edwards Lifesciences, Irvine, USA) and to assess their trending ability in patients undergoing cardiac surgery.
A single-center feasibility study in patients undergoing cardiac catheterization, to investigate the acute hemodynamic effects of transvenous cardiac autonomic nerve stimulation.
Changes in volumetric hemodynamic parameters and fluid overload (Cardiac Index,Stroke Volume, Thoracic Fluid Content, Systemic Vascular Resistance) were measured using a impedance cardiography (ICG) (CardioScreen 1000 - Haemodynamic Measurement System, Medis. Ilmenau) in stable renal transplant recipients Nutritional status was measured by Tanita 418 Monitor.
Monitoring the bispectral index (BIS) as a peri-operative hemodynamic tool appears to be justified by the agreement between various clinical situations in which BIS monitoring appears to be of value: the prognosis in traumatic head injury, the diagnosis of brain death , and the diagnosis of amniotic fluid embolism. The current controversy concerning the "triple low" state reinforces the need for an accurate study in this field. Furthermore, the recent review by Bidd argues in this sense.
This is a retrospective observational study to assess the relationship between peak systolic global longitudinal strain measured on pre-cardiopulmonary bypass trans-esophageal echo images predicts post-operative low cardiac output syndrome defined as the need for an inotropic support during 24 hours or longer.