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Central Venous Pressure Change With Volume Challenge in Patients With Hemodynamic Instability (CVPCHI)

This study has been completed.
Information provided by (Responsible Party):
Nouira, University of Monastir Identifier:
First received: June 21, 2012
Last updated: May 4, 2016
Last verified: May 2016
We conducted this study to assess the value of early change in central venous pressure (CVP) in predicting fluid responsiveness in mechanically ventilated patients.

Condition Intervention Phase
Acute Circulatory Failure
Other: volume expansion using modified gelatin
Phase 3

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
Official Title: Early Change of Central Venous Pressure With Volume Challenge as Predictor of Fluid Responsiveness in Patients With Hemodynamic Instability

Resource links provided by NLM:

Further study details as provided by University of Monastir:

Primary Outcome Measures:
  • fluid challange responsiveness [ Time Frame: within 20 minutes of fluid challenge ] [ Designated as safety issue: Yes ]
    change of Stroke volume variation (SVV) by more than 10%

Enrollment: 70
Study Start Date: January 2012
Study Completion Date: May 2013
Primary Completion Date: April 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: responder to fluid challenge
fluid challenge
Other: volume expansion using modified gelatin
Volume expansion using modified gelatin was determined according to a procedure formulated by modifying guidelines produced by Weil and Henning. The maximum volume infusion during the study test was fixed at 400 ml.
Other Name: fluid challenge

Detailed Description:
In patients with shock a primary goal of treatment is to restore and maintain organ perfusion, for which an adequate cardiac preload is required. Apart from the situations in which hypovolemia is evident and a favourable response to fluid administration will be seen, clinical and biological parameters often fail to predict hypovolemia. Inappropriate use of volume expansion carries out the risk of generating volume overload and pulmonary oedema. Consequently, reliable predictors of fluid responsiveness are needed especially in the early phase of cardiocirculatory deterioration. In the clinical setting, different static and dynamic indices have been shown to be useful indicators of cardiac preload. Central venous pressure (CVP) is widely used to measure right ventricular preload in patients requiring invasive hemodynamic monitoring. However, the use of the CVP is much criticized because CVP poorly predicts cardiac preload and volume status. However several decades ago, Weil and Henning proposed the fluid challenge technique, based on the 2-5 rule using CVP. There is a method for guiding volume repletion based on measurements of the patient's response to fluid load. This method has not been validated in the prediction of fluid responsiveness. We therefore conducted a prospective study that in all patients we measured CVP change and stroke volume variation (SVV) after administration of fluids. Patients were classified as fluid responders when their SVV is >10% after volume expansion and non-responders if SVV is ≤10%.

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • mechanically ventilated patients
  • acute circulatory failure defined by the need of vasopressive drugs (dopamine >5µg/kg/per minute or norepinephrine) with signs of tissue hypoperfusion (e.g., altered mental state, mottled skin, urine output below 0.5 ml per kilogram of body weight per hour during at least 2 h).
  • admission serum lactate level more than 2.5mmol/L

Exclusion Criteria:

  • severe hypoxemia defined as a ratio of arterial oxygen pressure to fraction of inspired oxygen [PaO2/FiO2] < 100 mmHg
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Please refer to this study by its identifier: NCT01630577

CHU Fattouma Bourguiba
Monastir, Tunisia, 5000
Emergency Department FB University Hospital
Monastir, Tunisia, 5000
Sponsors and Collaborators
University of Monastir
Principal Investigator: Nouira Semir, Professor FB University Hospital Monastir Tunisia
  More Information

Responsible Party: Nouira, professor, University of Monastir Identifier: NCT01630577     History of Changes
Other Study ID Numbers: CVPChallenge 
Study First Received: June 21, 2012
Last Updated: May 4, 2016
Health Authority: Tunisia: Ministry of Public Health
Individual Participant Data  
Plan to Share IPD: Undecided

Keywords provided by University of Monastir:
acute circulatory failure
hemodynamic stability

Additional relevant MeSH terms:
Pathologic Processes processed this record on October 21, 2016