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Cardiac Surgical ProceduresNCT02457572

Pulse Pressure Variation Measured During Valsalva Maneuver to Predict Fluid Responsiveness Under Open-chest Condition

An observational study of Cardiac Surgical Procedures and Thoracic Surgical Procedures, run by Samsung Medical Center at 1 site in South Korea.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Pulse pressure variation (PPV) is a well-known dynamic preload indicator to predict fluid responsiveness. However, its usefulness in open-chest conditions has been equivocal. The investigators evaluated whether PPV measured during Valsalva maneuver can predict fluid responsiveness after sternotomy. Read more about this study

Who is it for?
Ages 20 to 80 years
What is being tested?
Valsalva maneuver and Fluid loading
How many people
55 participants
Where
1 siteSouth Korea
Study dates
Oct 2014to May 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 20 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Adult patients undergoing elective off-pump coroanry arterial bypass grafting

Who may be able to join

  • Adult patients undergoing elective off-pump coronary arterial bypass grafting

Who cannot join

  • Preoperative LV EF <= 35%
  • Moderate or severe valvular heart disease
  • Cardiac arrhythmia
  • Intracardiac shunt
  • Severe renal or liver disease
  • Moderate to severe pulmonary hypertension (mean PAP > 35 mmHg)
  • Patients with bullous lung disease or combined pneumothorax

Trial locations and contacts

1 site in 1 country.

South Korea1 site
  • Samsung Medical Center

    Seoul, 135-710

Other trials in South Korea

About this study

Official title: Pulse Pressure Variation Measured During Valsalva Maneuver to Predict Fluid Responsiveness Under Open-chest Condition in the Patients Undergoing Off-pump Coronary Arterial Bypass Grafting

Pulse pressure variation (PPV) is a well-known dynamic preload indicator to predict fluid responsiveness. However, its usefulness in open-chest conditions has been equivocal. The investigators evaluated whether PPV measured during Valsalva maneuver can predict fluid responsiveness after sternotomy.

Being tested
Valsalva maneuver, Fluid loading

What participants receive

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

  • Valsalva maneuverProcedure or surgery

    Also called Lung recruitment maneuver

    Valsalva maneuver was performed after sternotomy with the constant airway pressure of 30cmH2O for 2 breaths duration.

  • Fluid loadingOther

    Also called Balanced crystalloid infusion

    We record the cardiac index values before and after volume expansion with 6ml/kg of balanced crystalloid

Study groups in NCT02457572
Study groupRoleWhat they receive
Valsalva maneuverThis is an observational study and as a diagnostic intervention, subjects in the study would receive valsalva maneuver. Valsalva maneuver was performed after sternotomy with the constant airway pressure of 30cmH2O for 2 breaths duration. The investigators perform this procedure to every patients and do not assign this intervention to the subjects of the study.
Receives: Procedure: Valsalva maneuver; Other: Fluid loading

What is being measured

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

  1. Pulse pressure variation during Valsalva maneuver

    Measured: during Valsalva maneuver

Secondary outcomes (1)
  1. Pulse pressure variation after sternotomy

    Measured: 5 min after sternotomy

Timeline

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

  1. First posted29 May 2015 (estimated)
  2. Study startOct 2014
  3. Primary completionMay 2015
  4. Study completionMay 2015

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
Cohort
Time perspective
Prospective
Enrolment
55 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02457572
Sponsor's protocol ID
SMC 2014-07-005
Status last verified
Sep 2015
First submitted
22 Apr 2015
Last updated
14 Sep 2015
Results posted
No

Publications

  • Min JJ, Kim TK, Lee JH, Park J, Cho HS, Kim WS, Lee YT. Evaluation of augmented pulse pressure variation using the Valsalva manoeuvre as a predictor of fluid responsiveness under open-chest conditions: A prospective observational study. Eur J Anaesthesiol. 2017 May;34(5):254-261. doi: 10.1097/EJA.0000000000000613.

    PubMed 28207430

Questions about this trial

What is this clinical trial studying?

An observational study of Cardiac Surgical Procedures and Thoracic Surgical Procedures, run by Samsung Medical Center at 1 site in South Korea.

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 7 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 14 Sep 2015. 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 South Korea. 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?

Pulse pressure variation during Valsalva maneuver (time frame: during Valsalva maneuver). 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 NCT02457572, which also lists 1 linked publication.

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 14 Sep 2015.

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