The Precision of Pulmonary Artery Cardiac Output-measurements in Spontaneously Breathing Patients
Not Applicable
Completed
- Conditions
- Heart Diseases
- Registration Number
- NCT01944254
- Lead Sponsor
- Norwegian University of Science and Technology
- Brief Summary
The intention of this study is to determine whether the precision of the measure of cardiac output can be optimized by conducting the measurement while the participant is instructed to exhale slowly. This will be compared to measurements done at random to respiration and timed with the participant's spontaneous expiration.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 18
Inclusion Criteria
- Every patient that receives a pulmonary artery catheter (PAC) related to elective cardiac surgeries,
- informed and written consent to participation in the study in accordance with the Helsinki declaration
- hemodynamic stability
Exclusion Criteria
- Hemodynamical instability
- atrial fibrillation
- tricuspid insufficiency ≥ grade 2
- hemodialysis or other conditions where extra volume load can be negative,
- lack of ability to give a written consent to participate in the study
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Primary Outcome Measures
Name Time Method The observed variance amongst the cardiac output measures 1 hour The measures will be obtained the first postoperative morning by pulmonary artery catheter thermodilution technique. In total 24 measurements will be done in each patient, i.e 8 measurements in each interventional series described later. The variance observed will create the foundation for calculating the precision of the measures.
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Department of circulation and medical imaging, NTNU
🇳🇴Trondheim, Norway
Department of circulation and medical imaging, NTNU🇳🇴Trondheim, Norway