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

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

COMPLETED

Clinical Phase

NA

Total Enrollment

18 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-09-30

Study Completion Date

2013-11-30

Brief Summary

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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.

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Detailed Description

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Conditions

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Heart Diseases

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Blinding Strategy

NONE

Study Groups

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random to respiration

Cardiac output measurement at random to respiration

Group Type ACTIVE_COMPARATOR

Cardiac output measurement at random to respiration

Intervention Type PROCEDURE

Cardiac output measurement obtained by pulmonary artery catheter thermodilution technique (PAC TD)

timed with expiration start

Cardiac output measurement synchronised at start of expiration.

Group Type EXPERIMENTAL

Cardiac output measurement synchronised at start of expiration

Intervention Type PROCEDURE

Cardiac output measurement obtained by PAC TD

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.

Group Type EXPERIMENTAL

Cardiac output measurement timed to instructed exhalation

Intervention Type PROCEDURE

Cardiac output measurement obtained by PAC TD

Interventions

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Cardiac output measurement at random to respiration

Cardiac output measurement obtained by pulmonary artery catheter thermodilution technique (PAC TD)

Intervention Type PROCEDURE

Cardiac output measurement synchronised at start of expiration

Cardiac output measurement obtained by PAC TD

Intervention Type PROCEDURE

Cardiac output measurement timed to instructed exhalation

Cardiac output measurement obtained by PAC TD

Intervention Type PROCEDURE

Eligibility Criteria

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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

Minimum Eligible Age

18 Years

Maximum Eligible Age

90 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No