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Open Heart SurgeryCRUISENCT06828432

CTICU Device Study CRUISE

An observational study of Open Heart Surgery, run by Hernando Gomez at 1 site in United States.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
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Trial summary

The goal of this study evaluate three novel, Food and Drug Administration (FDA)-approved devices currently used to monitor blood pressure and the amount of blood that the heart pumps during each beat. These devices are the ClearSight (Edwards Life Sciences), CareTaker (CareTaker Medical) and CNAP (CNS Systems). Read more about this study

Who is it for?
Ages 18 to 105 years
Conditions the study is for
Open Heart Surgery
What is being tested?
CRUISE CTICU CareTaker Vitalstream Device, CRUISE CTICU CNAP Device and CRUISE CTICU Edwards Clearsight Device
Type of treatment
Medical device
How many people
50 participants
Where
1 siteUnited States
Study dates
3 Jun 2025to 31 Jan 2027
How long will I take part?
1 Day
Phase
Observational
Are there results?
Not yet: the study is under way

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 18 to 105 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: All patients with estimates of cardiac output (CO) in patients with an indwelling pulmonary artery catheter. in 50 intensive care unit, intubated patients during the patient's normal course of treatment using their usually present invasive monitoring devices for the first 8 hours following cardiac surgery.

Who may be able to join

  • Adult patients (18 years and older)
  • Male and female patients following cardiac surgery admitted to the CTICU with or without a pulmonary artery catheter

Who cannot join

  • Subjects whose sternum remains open post-surgery and/or the presence of a LV ventricular assist device.
  • Presence of a any ventricular assist device, ECMO, Impella, durable LVAD, or central L/RVAD.
  • Spontaneous breathing activity upon coming out of the operating room (i.e., patients extubated in the operating room).
  • Presenting chronic atrial fibrillation, refractory acute atrial fibrillation to medical therapy or frequent extra-systoles.
  • Children will be excluded from this study. The hospital unit where all subjects will be recruited is for adults' (ages 18 and up) only. Gender, racial and ethnic sub groups will not be explicitly excluded.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

United States1 site
  • University Pittsburgh Medical Center

    Pittsburgh, Pennsylvania, 15213

Other trials in United States

About this study

Official title: Validation of Three Non-invasive Hemodynamic Monitoring Systems for Determining Measures of Volume Responsiveness, Ventriculo-arterial Coupling and Cardiac Output

The goal of this study evaluate three novel, Food and Drug Administration (FDA)-approved devices currently used to monitor blood pressure and the amount of blood that the heart pumps during each beat.

These devices are the ClearSight (Edwards Life Sciences), CareTaker (CareTaker Medical) and CNAP (CNS Systems). These devices measure blood pressure, how much blood the heart is pumping around the body each minute and on a heartbeat to heartbeat basis and other parameters that can tell the doctor if the patient will benefit from specific treatments. The purpose of this study is to determine the accuracy of these devices. This knowledge will help us understand how investigators can use such non-invasive devices to care for patients at less risk than the devices currently used for such purposes.

Read more

The main question the study aims to answer is:

  • What monitor is the most accurate in capturing non-invasive patient data?
Read the detailed description

Investigators will compare predictors of preload responsiveness, including pulse pressure variation (PPV) and stroke volume variation (SVV), and arterial dynamic elastance (Eadyn) in all patients and estimates of cardiac output (CO) in patients with an indwelling pulmonary artery catheter. in 50 intensive care unit, intubated patients during the patient's normal course of treatment using their usually present invasive monitoring devices for the first 8 hours following cardiac surgery.

The primary goal of the study will be to compare PPV, SVV and Eadyn measured by the non-invasive monitors ClearSight, CareTaker and CNAP versus a reference standard that uses invasive arterial pressure waveform data, which in this case will be the LiDCO monitor \& FloTrac monitor. Investigators will calculate accuracy, precision and concordance of each of the parameters measured during steady state conditions and after specific interventions including the administration of crystalloid fluid boluses and changes in vasoactive or inotropic medications. As a secondary objective, investigators will compare measures of CO by the same non-invasive monitors with the pulmonary artery catheter as a reference standard during the same conditions as above (i.e., steady state conditions, and before/after interventions). CO will therefore be only compared in patients that have a pulmonary artery catheter in place.

Being tested
CRUISE CTICU CareTaker Vitalstream Device, CRUISE CTICU CNAP Device, CRUISE CTICU Edwards Clearsight Device
Keywords
Heart, Surgery, ICU, Monitor, Blood Pressure, Measurement, non-invasive, responsiveness, cardiac

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CRUISE CTICU CareTaker Vitalstream DeviceDevice

    The CareTaker Vitalstream device is a patented PDA technology and artificial intelligence algorithms derive continuous hemodynamic parameters by analyzing reflective pulse wave analyzes the pulse pressure waveform at 500 times per second, isolates the individual central aortic pulses that give rise to the observed pulse shape, reads central aortic measurements therefore eliminating the effects of hydrostatic pressure, and tracks vascular tone.

  • CRUISE CTICU CNAP DeviceDevice

    The CNAP Monitor provides advanced hemodynamic information from the non-invasive reusable CNAP finger sensor. It supports your Goal Directed Therapy whenever an arterial line is not indicated. Patient-friendly, easy-to-use, cost-efficient. CNAP Monitor offers a unique set of parameters to support your daily routine - all non-invasive \& continuous allowing for perioperative fluid management even in low and moderate-risk surgeries and patients.

  • CRUISE CTICU Edwards Clearsight DeviceDevice

    The Edwards ClearSight system provides continuous blood pressure and advanced hemodynamic parameters from a noninvasive finger cuff. Continuous data offered by the ClearSight system enables you to proactively optimize perfusion through hemodynamic management.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Stroke Volume Variation

    The Stroke Volume Variation (SSV) will be collected continuously for 8 hours using all 3 devices (ClearSight, CareTaker and CNAP). The metric of performance will be the precision, accuracy and concordance assessed using Bland Altman analysis and Pearson's moment analysis comparing SVV from each of the non-invasive monitors with the reference standard obtained from the analysis of the arterial pressure waveform. Measurement of SVV, PPV, Eadyn and CO from non-invasive monitors will be obtained continuously, but the quantity will be recorded at different timepoints including: Baseline, every 30 min after baseline, before each bolus of crystalloid fluid or blood product (within 5 minutes of administration, after each bolus of crystalloid fluid or blood product (within 5 minutes of stopping), before each change in vasopressors or inotropes (within 5 minutes of administration), after each change in vasopressors or inotropes (within 5 minutes of stopping), before changing ventilatory mode.

    Measured: 8 hours

  2. Pulse Pressure Variation (PPV)

    The Pulse Pressure Variation will be collected continuously for 8 hours using all 3 devices (ClearSight, CareTaker and CNAP). The metric of performance will be the precision, accuracy and concordance assessed using Bland Altman analysis and Pearson's moment analysis comparing PPV from each of the non-invasive monitors with the reference standard obtained from the analysis of the arterial pressure waveform. This metric of performance will be reported. The most reliable device will be based on the metric of performance - that is, the most precise, accurate and concordant. Measurement of SVV, PPV, Eadyn and CO from non-invasive monitors will be obtained continuously, but the quantity will be recorded at different timepoints including: Baseline, every 30 min after baseline, before each bolus of crystalloid fluid or blood product (within 5 minutes of administration, after each bolus of crystalloid fluid or blood product (within 5 minutes of stopping), before each change in vasopressors.

    Measured: 8 hours

  3. Arterial Dynamic Elastance (Eadyn)

    The Arterial Dynamic Elastance (Eadyn) will be collected continuously for 8 hours using all 3 devices (ClearSight, CareTaker and CNAP). The metric of performance will be the precision, accuracy and concordance assessed using Bland Altman analysis and Pearson's moment analysis comparing Eadyn from each of the non-invasive monitors with the reference standard obtained from the analysis of the arterial pressure waveform. This metric of performance will be reported. The most reliable device will be based on the metric of performance - that is, the most precise, accurate and concordant. Measurement of SVV, PPV, Eadyn and CO from non-invasive monitors will be obtained continuously, but the quantity will be recorded at different timepoints including: Baseline, every 30 min after baseline, before each bolus of crystalloid fluid or blood product (within 5 minutes of administration, after each bolus of crystalloid fluid or blood product (within 5 minutes of stopping).

    Measured: 8 hours

Secondary outcomes (2)
  1. Cardiac Output

    Compare measures of CO by the ClearSight, CareTaker and CNAP non-invasive monitors with the pulmonary artery catheter as a reference standard during the same conditions as above (i.e., steady state conditions, and before/after interventions). CO will therefore be only compared in patients that have a pulmonary artery catheter in place. Measurement of SVV, PPV, Eadyn and CO from non-invasive monitors will be obtained continuously, but the quantity will be recorded at different timepoints including: Baseline, every 30 min after baseline, before each bolus of crystalloid fluid or blood product (within 5 minutes of administration, after each bolus of crystalloid fluid or blood product (within 5 minutes of stopping), before each change in vasopressors or inotropes (within 5 minutes of administration), after each change in vasopressors or inotropes (within 5 minutes of stopping), before changing ventilatory mode to pressure support ventilation, after 30+/-5 minutes of changing ventilatory.

    Measured: 8 hours

  2. Volume Responsiveness Collection

    The performance of ClearSight, CareTaker and CNAP in predicting volume responsiveness as compared to LiDCO, using a change of 10% or more in CO in response to fluid administration measured with a PAC as the definition of volume responsiveness. Measurement of SVV, PPV, Eadyn and CO from non-invasive monitors will be obtained continuously, but the quantity will be recorded at different timepoints including: Baseline, every 30 min after baseline, before each bolus of crystalloid fluid or blood product (within 5 minutes of administration, after each bolus of crystalloid fluid or blood product (within 5 minutes of stopping), before each change in vasopressors or inotropes (within 5 minutes of administration), after each change in vasopressors or inotropes (within 5 minutes of stopping), before changing ventilatory mode to pressure support ventilation, after 30+/-5 minutes of changing ventilatory mode to pressure support ventilation, before extubation (within 5minutes), after extubation .

    Measured: 8 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Feb 2025
  2. Study start3 Jun 2025
  3. Primary completion31 Jan 2027 (estimated)
  4. Study completion31 Jan 2027 (estimated)

Resources

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
Other
Time perspective
Other
Enrolment
50 participants (estimated)
Target duration
1 Day
IDs, dates and publications
ClinicalTrials.gov ID
NCT06828432
Sponsor's protocol ID
STUDY24080125
Other IDs
HT9425-24-C-0121
Acronym
CRUISE
Status last verified
Mar 2026
First submitted
13 Jan 2025
Last updated
6 Mar 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No: We will not share any data outside our study team. The DOD requires all vendors to sign NDAs and commit to the rules of the study. Any party that may have access to the data will be part of the study team and committed thru NDAs \& subcontracts.

Publications

  • Michard F, Chemla D, Richard C, Wysocki M, Pinsky MR, Lecarpentier Y, Teboul JL. Clinical use of respiratory changes in arterial pulse pressure to monitor the hemodynamic effects of PEEP. Am J Respir Crit Care Med. 1999 Mar;159(3):935-9. doi: 10.1164/ajrccm.159.3.9805077.

    PubMed 10051276
  • Ramsey SD, Saint S, Sullivan SD, Dey L, Kelley K, Bowdle A. Clinical and economic effects of pulmonary artery catheterization in nonemergent coronary artery bypass graft surgery. J Cardiothorac Vasc Anesth. 2000 Apr;14(2):113-8. doi: 10.1016/s1053-0770(00)90001-6.

    PubMed 10794325

Questions about this trial

What is this clinical trial studying?

An observational study of Open Heart Surgery, run by Hernando Gomez 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 2 inclusion and 5 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: enrolling by invitation, as of the sponsor's last update on 6 Mar 2026. 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?

This study is still under way. Results are not available in the source record yet.

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?

Stroke Volume Variation (time frame: 8 hours). The study lists 3 primary outcomes in all. 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 NCT06828432, 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 6 Mar 2026.

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