Low Cardiac OutputNCT02511457
Comparison of Cardiac Output With LiDCO Rapid and TEE Against Thermodilution Technique in Cardiac Surgery
An observational study of Low Cardiac Output, run by University of Iowa at 1 site in United States.
Trial summary
Measurement of the cardiac output is one of the important hemodynamic monitoring tools in cardiac surgery. It helps determine the type of medications needed to maintain optimal hemodynamic status in the entire perioperative period. Read more about this study
- Who is it for?
- Ages 30 to 90 years
- Conditions the study is for
- Low Cardiac Output
- How many people
- 110 participants
- Where
- 1 siteUnited States
- Study dates
- Oct 2012to Aug 2015
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 30 to 90 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: All elective adult cardiac surgery patients who are scheduled in UIHC from Sep 2012 to August 2015 will be included.
Who may be able to join
- Elective cardiac procedures other than those specified in the exclusion criteria
Who cannot join
- All emergency cardiac procedures, prisoners and pregnant women, patients who are scheduled for ventricular assist devices and those with severe aortic, mitral and tricuspid insufficiency will be excluded.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Validation of Measurement of Cardiac Output With LiDCO Rapid and TEE (Trans Esophageal Echocardiography) by Comparing With Intermittent Thermodilution Technique in Cardiac Surgical Patients
Measurement of the cardiac output is one of the important hemodynamic monitoring tools in cardiac surgery. It helps determine the type of medications needed to maintain optimal hemodynamic status in the entire perioperative period. Thermodilution method using pulmonary artery catheter is considered has the gold standard for the measurement of cardiac output. Investigators would like to compare the most popular minimally-invasive devices used to measure cardiac output using arterial waveform: LiDCO Rapid and TEE with the thermodilution method at various phases of the cardiac surgery.
Read the detailed description
Measurement of the cardiac output is one of the important hemodynamic monitoring tools in cardiac surgery. It helps determine the type of medications needed to maintain optimal hemodynamic status in the entire perioperative period. Thermodilution method using pulmonary artery catheter is considered has the gold standard for the measurement of cardiac output, however over the past 10 to 15 years it has been questioned about its safety and efficacy. There has been a surge in recent years of less invasive devices capable of measuring cardiac output by various means, including bioimpedance, transpulmonary thermodilution, transthoracic and transesophageal echocardiography, and arterial waveform analysis.
There is a variety of devices currently available for cardiac output measurement by arterial-waveform analysis. These devices have been compared to each other, and to the pulmonary artery catheter as the gold standard. However, the companies manufacturing these devices have made software upgrades that they believe improves their performance. No studies have been performed comparing the uncalibrated arterial waveform based cardiac output measurement device,LiDCORapid since the software upgrades. In addition to baseline cardiac output measurements, Investigators intend to study the effect of volume loading (by trendelenburg position), sympathetic stimulus (incision), a vasodilated state (15 minutes after separation from CPB) and chest closure on cardiac output measured by the three different techniques.
In addition to cardiac output the investigators would like to measure stroke volume ,Systemic Vascular Resistance, stroke volume variation with LiDCO . The main purpose is to validate the accuracy of measurements by these two minimally-invasive methods in comparison with thermodilution method in various hemodynamic states.
- Conditions
- Low Cardiac Output
- Medical subject headings
- Cardiac Output, Low
What is being measured
The primary outcome is the main question the study is designed to answer.
The primary objective of the study is measured cardiac output by LiDCO Rapid is as equivalent ( within 30%) as measured by pulmonary artery catheter using intermittent thermodilution method among patients undergoing elective cardiac surgery.
Measured: During intraoperative period.
Secondary outcomes (1)
The secondary objective of the study is measured cardiac output by TEE using VTI at LVOT is as equivalent ( within 30%) as measured by pulmonary artery catheter using intermittent thermodilution method among patients undergoing elective cardiac surgery.
Measured: During intraoperative period
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Jul 2015 (estimated)
- Study startOct 2012
- Primary completionAug 2015
- Study completionAug 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Low Cardiac OutputStudies of the same condition, open and under way.
- More trials run by University of IowaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case only
- Time perspective
- Prospective
- Enrolment
- 110 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Iowa
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Sudhakar Subramani, University of Iowa
- Investigators
- Sudhakar Subramani, M.D., Principal investigator, University of Iowa
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02511457
- Sponsor's protocol ID
- 201205760
- Status last verified
- Oct 2016
- First submitted
- 24 Jul 2015
- Last updated
- 25 Oct 2016
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Hadian M, Kim HK, Severyn DA, Pinsky MR. Cross-comparison of cardiac output trending accuracy of LiDCO, PiCCO, FloTrac and pulmonary artery catheters. Crit Care. 2010;14(6):R212. doi: 10.1186/cc9335. Epub 2010 Nov 23.
PubMed 21092290Cecconi M, Dawson D, Casaretti R, Grounds RM, Rhodes A. A prospective study of the accuracy and precision of continuous cardiac output monitoring devices as compared to intermittent thermodilution. Minerva Anestesiol. 2010 Dec;76(12):1010-7. Epub 2010 Jul 16.
PubMed 20634793
Study at a glance
From the registry record, last updated by the sponsor on 25 Oct 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Validation of Measurement of Cardiac Output With LiDCO Rapid and TEE (Trans Esophageal Echocardiography) by Comparing With Intermittent Thermodilution Technique in Cardiac Surgical Patients
- ClinicalTrials.gov ID
- NCT02511457
- Acronym / sponsor ID
- 201205760
- Conditions
- Low Cardiac Output
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 110 participants (actual)
- Lead sponsor
- University of IowaUniversity, hospital or other
- Study start
- Oct 2012
- Primary completion
- Aug 2015 (actual)
- Study completion
- Aug 2015 (actual)
- First posted
- 30 Jul 2015 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Measurement of the cardiac output is one of the important hemodynamic monitoring tools in cardiac surgery. It helps determine the type of medications needed to maintain optimal hemodynamic status in the entire perioperative period. Thermodilution method using pulmonary artery catheter is considered has the gold standard for the measurement of cardiac output. Investigators would like to compare the most popular minimally-invasive devices used to measure cardiac output using arterial waveform: LiDCO Rapid and TEE with the thermodilution method at various phases of the cardiac surgery.
Detailed description
Measurement of the cardiac output is one of the important hemodynamic monitoring tools in cardiac surgery. It helps determine the type of medications needed to maintain optimal hemodynamic status in the entire perioperative period. Thermodilution method using pulmonary artery catheter is considered has the gold standard for the measurement of cardiac output, however over the past 10 to 15 years it has been questioned about its safety and efficacy. There has been a surge in recent years of less invasive devices capable of measuring cardiac output by various means, including bioimpedance, transpulmonary thermodilution, transthoracic and transesophageal echocardiography, and arterial waveform analysis.
There is a variety of devices currently available for cardiac output measurement by arterial-waveform analysis. These devices have been compared to each other, and to the pulmonary artery catheter as the gold standard. However, the companies manufacturing these devices have made software upgrades that they believe improves their performance. No studies have been performed comparing the uncalibrated arterial waveform based cardiac output measurement device,LiDCORapid since the software upgrades. In addition to baseline cardiac output measurements, Investigators intend to study the effect of volume loading (by trendelenburg position), sympathetic stimulus (incision), a vasodilated state (15 minutes after separation from CPB) and chest closure on cardiac output measured by the three different techniques.
In addition to cardiac output the investigators would like to measure stroke volume ,Systemic Vascular Resistance, stroke volume variation with LiDCO . The main purpose is to validate the accuracy of measurements by these two minimally-invasive methods in comparison with thermodilution method in various hemodynamic states.
Study design
- Observational model
- Case only
- Time perspective
- Prospective
Who may qualify
- Ages
- 30 to 90 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- All elective adult cardiac surgery patients who are scheduled in UIHC from Sep 2012 to August 2015 will be included.
Key inclusion criteria (1 listed)
- Elective cardiac procedures other than those specified in the exclusion criteria
Key exclusion criteria (1 listed)
- All emergency cardiac procedures, prisoners and pregnant women, patients who are scheduled for ventricular assist devices and those with severe aortic, mitral and tricuspid insufficiency will be excluded.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
The primary objective of the study is measured cardiac output by LiDCO Rapid is as equivalent ( within 30%) as measured by pulmonary artery catheter using intermittent thermodilution method among patients undergoing elective cardiac surgery.
Time frame: During intraoperative period.
1 secondary outcome
The secondary objective of the study is measured cardiac output by TEE using VTI at LVOT is as equivalent ( within 30%) as measured by pulmonary artery catheter using intermittent thermodilution method among patients undergoing elective cardiac surgery.
Time frame: During intraoperative period
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 25 Oct 2016.
- Results publication: PubMed 21092290Hadian M, Kim HK, Severyn DA, Pinsky MR. Cross-comparison of cardiac output trending accuracy of LiDCO, PiCCO, FloTrac and pulmonary artery catheters. Crit Care. 2010;14(6):R212. doi: 10.1186/cc9335. Epub 2010 Nov 23.
- Results publication: PubMed 20634793Cecconi M, Dawson D, Casaretti R, Grounds RM, Rhodes A. A prospective study of the accuracy and precision of continuous cardiac output monitoring devices as compared to intermittent thermodilution. Minerva Anestesiol. 2010 Dec;76(12):1010-7. Epub 2010 Jul 16.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Sudhakar Subramani, M.D. principal investigator
University of Iowa
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Low Cardiac Output, run by University of Iowa at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 25 Oct 2016. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The primary objective of the study is measured cardiac output by LiDCO Rapid is as equivalent ( within 30%) as measured by pulmonary artery catheter using intermittent thermodilution method among patients undergoing elective cardiac surgery. (time frame: During intraoperative period.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02511457, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Oct 2016.