The Precision of Pulmonary Artery Cardiac Output-measurements in Spontaneously Breathing Patients (TEMP2)

July 28, 2016 updated by: Norwegian University of Science and Technology

Comparison of the Precision of Cardiac Output-measures at Random to Respiration, Synchronised With Expiration and Instructed Slow Exhalation, Obtained by Pulmonal Artery Catheter Thermodilution Technique With Cold Injection

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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

18

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Norway
      • Trondheim, Norway
        • Department of circulation and medical imaging, NTNU

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

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 Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: random to respiration
Cardiac output measurement at random to respiration
Procedure: Cardiac output measurement at random to respiration
Cardiac output measurement obtained by pulmonary artery catheter thermodilution technique (PAC TD)
Experimental: timed with expiration start
Cardiac output measurement synchronised at start of expiration.
Procedure: Cardiac output measurement synchronised at start of expiration
Cardiac output measurement obtained by PAC TD
Experimental: timed to instructed exhalation
Cardiac output measurement timed to instructed exhalation. The patient will receive instructions to exhale slowly using a peak expiratory flow (PEF)-flute and the cardiac output measurement will be started (i.e bolus given) at the start of expiration.
Procedure: Cardiac output measurement timed to instructed exhalation
Cardiac output measurement obtained by PAC TD

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The observed variance amongst the cardiac output measures
Time Frame: 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.
1 hour

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Norwegian University of Science and Technology

Collaborators

St. Olavs Hospital

Investigators

  • Principal Investigator: Idar Kirkeby-Garstad, Dr., Norwegian University of Science and Technology

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 2013

Primary Completion (Actual)

November 1, 2013

Study Completion (Actual)

November 1, 2013

Study Registration Dates

First Submitted

September 7, 2013

First Submitted That Met QC Criteria

September 12, 2013

First Posted (Estimate)

September 17, 2013

Study Record Updates

Last Update Posted (Estimate)

July 29, 2016

Last Update Submitted That Met QC Criteria

July 28, 2016

Last Verified

July 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2013/409 (Uppsala Regional Ethics Committee)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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