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Stroke Volume clinical trials

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NCT ID: NCT05905536 Recruiting - Cardiac Output, Low Clinical Trials

Perioperative Monitoring of Cardiac Surgery Patients With the Vitalstream Physiological Monitor

Start date: August 15, 2023
Phase: N/A
Study type: Interventional

The purpose of this study is to validate cardiac output and stroke volume derived from Vitalstream against Gold Standard measurements obtained using thermodilution. The Vitalstream device is a continuous noninvasive physiological monitor (Caretaker Medical LLC, Charlottesville, Virginia, further referred to as "CTM") provides heart rate, continuous noninvasive blood pressure (BP), respiratory rate, stroke volume and cardiac output.

NCT ID: NCT05882240 Completed - Stroke Volume Clinical Trials

Performance of PLR as Predicting Preload Responsiveness

PLR
Start date: December 1, 2021
Phase:
Study type: Observational

We aimed to establish current practice of correct application and interpretation of the PLR in critical care patients.

NCT ID: NCT05800808 Completed - Cardiac Output Clinical Trials

Exercise Induced Plasma Volume Expansion Lowers Cardiovascular Strain

Start date: January 15, 2019
Phase: N/A
Study type: Interventional

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.

NCT ID: NCT05506059 Completed - Clinical trials for Cardiovascular Diseases

Heart Ultrasound by Emergency Medicine Residents as an Estimate of Heart Function

BES2T
Start date: September 10, 2022
Phase: N/A
Study type: Interventional

The purpose of this research is to better understand the use of heart ultrasounds to estimate heart function.

NCT ID: NCT05365854 Recruiting - Clinical trials for Acute Respiratory Distress Syndrome

Hemodynamic Effects of Two Modalities of Alveolar Recruitment Maneuvers - ICU Patients

CHARM-ICU
Start date: March 1, 2022
Phase: N/A
Study type: Interventional

The objective of this study was to investigate the hemodynamic effects of two alveolar recruitment maneuver strategies in critical care patients with acute respiratory distress syndrome.

NCT ID: NCT05365113 Completed - Blood Pressure Clinical Trials

Comparison of Hemodynamic Effects of Two Modalities of Alveolar Recruitment Maneuvers in Major Abdominal Surgery Patients

CHARM-Bloc
Start date: March 9, 2022
Phase: N/A
Study type: Interventional

The objective of this study is to investigate the hemodynamic effects of two strategies of alveolar recruitment maneuver in patients undergoing major abdominal surgery in the operating room

NCT ID: NCT04362033 Recruiting - Clinical trials for Coronary Artery Bypass Grafting

Comparison of Dynamic Fluid Responsiveness by EIT and Transpulmonary Thermodilution in Postoperative of CABG Patients

Start date: August 22, 2018
Phase: N/A
Study type: Interventional

The purpose of this study is to evaluate the stroke volume variation measured by both methods: transpulmonary thermodilution and electrical impedance tomography (EIT), during fluid responsiveness maneuvers and after fluid replacement in the immediate postoperative of coronary artery bypass grafting (CABG) patients. Patients will be hemodinamically monitored with the VolumeView set in combination with EV1000 clinical platform and the display of valuable volumetric parameters (Edwards Lifesciences, California, USA). Simultaneoulsy, patients will be monitored with Enlight Electrical Impedance Tomography (Timpel, São Paulo, Brazil). Hemodynamic data will be assessed at baseline 1, one minute after the passive leg raising maneuver, after PEEP increment, and after 500 mL of Lactated Ringer's (bolus infusion). Blood gases sample will be assessed before and immediatly after the protocol.

NCT ID: NCT04068233 Completed - Cardiac Output Clinical Trials

Impact of Pacing Mode and Diastolic Function on Cardiac Output

PADIAC
Start date: June 26, 2019
Phase: N/A
Study type: Interventional

Background It is known from previous research that in patients with complete AV (atrioventricular) block and pacemaker stimulation stroke volume and cardiac output are higher with AV-synchronous than with AV-dyssynchronous pacing. However, the extent to which patients profited from AV-synchronous stimulation varied substantially. Aim of the study Aim of this study is to systematically analyze the impact of diastolic function and other echo parameters on the difference of stroke volumes/cardiac output between AV-synchronous and AV-dyssynchronous pacing modes. Methods Patients fulfilling the entry criteria will be enrolled (two-chamber pacemaker of any vendor eligible) in this monocentric, prospective, interventional study. Baseline data will be collected with a standardized questionnaire. During an echo examination, parameters of diastolic, systolic and atrial function will be assessed. Then, the stroke volume/cardiac output will be measured twice in each patient, once with AV-synchronous and once with AV-dyssynchronous pacing. Therefore, each patient will represent their own control. It will be randomized (coin tossing) which stimulation mode is first and which is second (sonographer and patient will be blinded). Descriptive statistics will be applied and regression models will be fitted to explore the data.

NCT ID: NCT02977390 Completed - Fluid Therapy Clinical Trials

Passive Leg Raise Induced Stroke Volume Changes in Elderly Prior to Elective Surgery Measured by LiDCOplusTM

Start date: October 2013
Phase: N/A
Study type: Interventional

This is a pilot study to investigate whether patients at advanced age are fluid responders via a reversible fluid challenge, the passive leg raise test. This will be measured with a non-invasive cardiac output monitor, the LiDCO (LiDCO Hemodynamic monitoring) .

NCT ID: NCT02639468 Terminated - Stroke Volume Clinical Trials

Electric Impedance Tomography

SVEIT
Start date: April 2016
Phase: N/A
Study type: Interventional

Evaluation of electrical impedance tomography to non-invasively monitor stroke volume when compared to reference measurements performed via right heart thermodilution