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NCT07082283
The goal of this clinical trial is to learn whether temporary atrial pacing improves heart function after cardiac surgery under cardiopulmonary bypass (CPB). It will also help determine the best pacing rate during the first 24 hours after surgery. The main questions it aims to answer are: * Does atrial pacing improve cardiac output after surgery? * Is 70, 80, or 90 bpm the most effective pacing rate? * Does pacing reduce the risk of atrial fibrillation after surgery?
NCT04064177
This is an observational study in newborn term and preterm infants. The study will validate if non-invasive continuous cardiac output monitoring is feasible in newborn infants, if normative values can be constructed and what is the effect of fluid boluses and inotropes on cardiac output and peripheral vascular resistance.
NCT03021525
To evaluate the impact of perioperative, algorithm driven, hemodynamic therapy based on individualized fluid and cardiac output optimization on postoperative moderate and severe complications in patients undergoing major abdominal surgery including visceral, urological, and gynecological operations. In the proposed study, hemodynamic therapy is tailored individually to each patient, based on individual preload optimization by the functional parameter "pulse pressure variation (PPV)" and based on an individually titrated goal of cardiac index. The proposed study therefore further develops the concept of hemodynamic goal-directed therapy to individually set goals and is designed to assess its impact on morbidity and mortality.
NCT06198621
The study aims at evaluating effectiveness of noninvasive cardiometry in assessment of cardiac parameters in critically ill patients in respiratory ICU in comparison to invasive methods as indirect fick's and thermodilution methods using pulmonary artery catheter.
NCT05800808
The goal of this observational study was to better understand the impact of increased plasma volume on later exercise in hypoxia. Investigators examined young, healthy, males who regularly participated in aerobic exercise. Investigators first measured participant's response to exercise in hypoxia (simulated \~7,500 feet above sea level). The investigators then had participants either 1) undergo 1 bout of high intensity interval exercise or 2) undergo 1 bout of moderate, continuous exercise. 48 hours after the exercise, participants were again examined in hypoxia.
NCT04045340
The aim of the present study is to assess the best echocardiographic parameters (GLS, GLS rate and standard echocardiographic parameters) predicting LCOS in on-pump mitral surgery.
NCT05269537
Cardiac output will be measured in healthy parturients undergoing cesarean delivery under spinal anesthesia
NCT05101291
Aging and frailty make the elderly patients susceptible to hypotension following spinal anaesthesia. The systemic haemodynamic effects of spinal anaesthesia are not well known. In this study, we examine the systemic haemodynamic effects of fractional spinal anaesthesia following intermittent microdosing of a local anesthetic and an opioid. We included 15 patients aged over 65 with considerable comorbidities, planned for emergency hip fracture repair. Patients received a spinal catheter and cardiac output monitoring using the LiDCOplus system. Invasive mean arterial pressure (MAP), cardiac index, systemic vascular resistance index, heart rate and stroke volume index were registered. Two doses of bupivacaine 2,25 mg and fentanyl 15µg were administered with 25 minutes in between. Hypotension was defined as a fall in MAP by \>30% or a MAP \<65 mmHg
NCT05035719
Comparison studies comparing hemodynamic parameters provided by the Caretaker against respective Gold Standard references.
NCT04698005
This study will evaluate whether supplementation of exogenous ketones in patients with severe left ventricular dysfunction and acutely decompensated heart failure requiring inotropic therapy would improve the patient's hemodynamics and symptoms.
NCT04112719
In pregnant term patients, we intent to use a non invasive cardiac output monitor to detect the changes in cardiac output as the patient is being placed in different positions. The patient will be placed on her back, flat, and in left lateral tilt at two different angles. Measurements of cardiac output will be recorded.
NCT04265924
In this study, the investigators sought to clarify the influence of FIO2 levels on the variables in the Fick equation and then assessed the influence of each variable on the accuracy of Fick-CO measurements in patients undergoing cardiac surgery.
NCT02778620
The purpose of this study is to determine fluid responsiveness in critically ill patients by measuring mean systemic filling pressure on the intensive care unit.
NCT03641625
This randomized controlled trial is to investigate if SmtO2-guided management on top of the usual care, compared with the usual care only, during laparoscopic hysterectomy significantly reduces the incidence of PONV.
NCT02682615
Evaluation of a non-invasive technique to measure cardiac output (esCCO™) with the "clinical goldstandard" of the transcardiopulmonal thermodilution technique (PiCCO®). Effect of different potential interference factors to the accuracy of measurement (changing concentration of norepinephrine, generally severity of the basic disease - APACHE II score).
NCT01892696
The clinical usefulness of inspiratory flow pattern manipulation during mechanical ventilation remains unclear. The aim of this study was to investigate the effects of different inspiratory flow waveforms, i.e. constant and decelerating, on cardiac preload in mechanically ventilated patients assessed by arterial pulse pressure variation (PPV) and inferior vena cava distensibility.
NCT02828176
The aim of the study is to investigate the effect of different angles of lateral tilt on the maternal hemodynamics before and after spinal anesthesia
NCT01103908
Cardiac output, the amount of blood pumped by the heart in one minute, will be measured in pediatric patients undergoing surgery involving cardiopulmonary bypass (CPB). Cardiac output will be measured after cardiopulmonary bypass using a device that employs ultrasound dilution technology. At times, cardiac output will be measured during a procedure called modified ultrafiltration (MUF). The ultrasound dilution cardiac output measurements will be validated or compared with cardiac output measurements made using other FDA approved techniques and devices.
NCT00851474
Cardiac Output (amount of blood pumped by the heart in one minute) will be measured using the new COstatus(R) system and these values will be compared with cardiac output values measured by other methods such as thermodilution. Blood volumes measured by the COstatus(R) system will also be recorded.
NCT00590018
Babies having heart surgery often have problems after surgery with their blood pressure and getting enough blood to their bodies. To treat this they require medicines to keep their blood pressure high enough to get blood to their bodies. The side effects of these medicines include fast heart rates and increasing the amount of work the heart has to do. Corticosteroids are made by the body and help to use the energy in the food people eat, control the chemicals in their blood and maintain their blood pressure. Corticosteroids made by the body may be decreased in patients that have major surgery. Corticosteroids help to increase blood pressure and can decrease the amount of blood pressure medicines a patient requires. Corticosteroids have been shown to increase blood pressure in patients with bacterial infections and in very small, premature babies but have only been studied in a few babies who have had heart surgery. The way corticosteroids work is unknown but may involve decreasing the body's response to being on a heart-lung machine or give steroids not being made by the patient. Corticosteroids have been shown to be helpful in treating many diseases. The purpose of this study is to look at the effects of corticosteroids in babies who have had heart surgery and need blood pressure medicines in the intensive care unit after surgery. Our idea is that getting corticosteroids will allow us to decrease the amount of blood pressure medicines each patient needs and improve how they do after surgery. We also plan to do blood tests to help determine how the corticosteroids are working. It will be randomly determined if the subject receives corticosteroids or salt water. The subject will receive a corticosteroid or salt water once a day for five days. Their vital signs will be monitored, especially blood pressure and their need for medicines to increase their blood pressure. Blood work will also be obtained to determine their body's ability to make steroids.