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Inert Gas Rebreathing in Ventilated Patients

Feasibility of the Non-invasive Determination of Cardiac Output Using Inert Gas Rebreathing in Ventilated Patients

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01891253
Acronym
VIGR
Enrollment
50
Registered
2013-07-03
Start date
2013-03-31
Completion date
2020-12-31
Last updated
2019-09-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Heart Failure, Renal Failure, Respiratory Failure, Sepsis

Keywords

cardiac output, mechanical ventilation, inert gas rebreathing, pulse contour analysis

Brief summary

Measuring hemodynamic parameters in ventilated patients is important yet still complicated to perform. Inert gas rebreathing (IGR) showed promising results when being compared to other invasive as well as non-invasive techniques for the measurement of cardiac output. The aim of our study is to evaluate the feasibility of IGR in ventilated patients.

Interventions

DEVICEnon-invasive determination of cardiac output

Sponsors

Universitätsmedizin Mannheim
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* age 18 - 80 years * mechanically ventilated patient * existing PiCCO arterial line

Exclusion criteria

* FiO2 \> 60% (fraction of inspired oxygen) * PEEP \> 10 mmHg (positive end-expiratory pressure) * SO2 \< 90% (oxygen saturation ) * Systolic blood pressure \< 90 mmHg * Heart rate \> 150 bpm * APRV (airway pressure release ventilation) * ICD (implantable cardioverter defibrillator) / pace maker * \[ Anaesthetic Conserving Device (Anaconda) \]

Design outcomes

Primary

MeasureTime frameDescription
cardiac output1 dayDetermination of cardiac output using invasive pulse contour analysis (PiCCO) and non-invasive inert gas rebreathing (Innocor)

Countries

Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026