Cardiac Output Assessment by Using Saline Contrast Injection

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

65 participants

Study Classification

OBSERVATIONAL

Study Start Date

2020-03-10

Study Completion Date

2024-03-31

Brief Summary

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Cardiac output (CO) assessment is one of the cornerstone of hemodynamic evaluation in ICU patients. CO is usually measured using invasive methods or non-invasive methods. Thermodilution is considered as the gold standard for CO assessment. Cardiac Doppler as well demonstrated to be accurate but needs manipulations and good knowledge and skills. The investigators developed a new technique using injection of agitated saline solution to evaluate CO without any manual measurement and then observer independent.

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Detailed Description

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The investigators decided to conduct a prospective observational study to compare contrast assessment of CO and cardiac Doppler technique. Patients hospitalized in ICU will be included if they need a trans esophageal echocardiographic evaluation and a research of intra cardiac shunt (using a saline contrast test). Patients with Swan Ganz catheter will be included as well. Cardiac output will be measured using cardiac Doppler. Simultaneously, 4.5 ml of saline with 0.5 ml of air will be agitated to have a contrast solution. This solution will be injected as usual and echocardiographic imaging will be recorded. These imaging will be analyzed off-line and CO will be calculated with an algorithm previously developed and compared with the reference method. In case of swan ganz catheter, the cardiac output will be also measured using the thermodilution technique.

Conditions

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Echocardiography

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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ICU cardiac output (CO) assessment patients

all ICU patients intubated/ventilated with a central line and an arterial catheter who need trans esophageal echocardiography examination with a saline contrast test.

contrast assessment of cardiac output (CO)

Intervention Type OTHER

Patients hospitalized in ICU will be included if they need a trans esophageal echocardiographic evaluation and a research of intra cardiac shunt (using a saline contrast test). Patients with Swan Ganz catheter will be included as well. Cardiac output will be measured using cardiac Doppler. Simultaneously, 4.5 ml of saline with 0.5 ml of air will be agitated to have a contrast solution. This solution will be injected as usual and echocardiographic imaging will be recorded. These imaging will be analyzed off-line and CO will be calculated with an algorithm previously developed and compared with the reference method. In case of swan ganz catheter, the cardiac output will be also measured using the thermodilution technique.

cardiac Doppler technique

Intervention Type OTHER

Patients hospitalized in ICU will be included if they need a trans esophageal echocardiographic evaluation and a research of intra cardiac shunt (using a saline contrast test). Patients with Swan Ganz catheter will be included as well. Cardiac output will be measured using cardiac Doppler. Simultaneously, 4.5 ml of saline with 0.5 ml of air will be agitated to have a contrast solution. This solution will be injected as usual and echocardiographic imaging will be recorded. These imaging will be analyzed off-line and CO will be calculated with an algorithm previously developed and compared with the reference method. In case of swan ganz catheter, the cardiac output will be also measured using the thermodilution technique.

Interventions

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contrast assessment of cardiac output (CO)

Patients hospitalized in ICU will be included if they need a trans esophageal echocardiographic evaluation and a research of intra cardiac shunt (using a saline contrast test). Patients with Swan Ganz catheter will be included as well. Cardiac output will be measured using cardiac Doppler. Simultaneously, 4.5 ml of saline with 0.5 ml of air will be agitated to have a contrast solution. This solution will be injected as usual and echocardiographic imaging will be recorded. These imaging will be analyzed off-line and CO will be calculated with an algorithm previously developed and compared with the reference method. In case of swan ganz catheter, the cardiac output will be also measured using the thermodilution technique.

Intervention Type OTHER

cardiac Doppler technique

Patients hospitalized in ICU will be included if they need a trans esophageal echocardiographic evaluation and a research of intra cardiac shunt (using a saline contrast test). Patients with Swan Ganz catheter will be included as well. Cardiac output will be measured using cardiac Doppler. Simultaneously, 4.5 ml of saline with 0.5 ml of air will be agitated to have a contrast solution. This solution will be injected as usual and echocardiographic imaging will be recorded. These imaging will be analyzed off-line and CO will be calculated with an algorithm previously developed and compared with the reference method. In case of swan ganz catheter, the cardiac output will be also measured using the thermodilution technique.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* all ICU patients intubated/ventilated with a central line and an arterial catheter who need trans esophageal echocardiography examination with a saline contrast test.