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Echocardiographic Prediction of Fluid Responsiveness After a Mini-fluid Challenge in Non-ventilated Patients With Shock (IVT NonVent)

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ClinicalTrials.gov Identifier: NCT01590511
Recruitment Status : Completed
First Posted : May 3, 2012
Last Update Posted : December 4, 2015
Sponsor:
Information provided by (Responsible Party):
Centre Hospitalier Universitaire de Nīmes

Study Description
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Brief Summary:
The main objective of this study is to show that the variation of the subaortic velocity time integral after a mini test by filling 100 cc of normal saline over 1 minute (ΔITV100) is predictive of response to filling (defined as an increase in aortic velocity time integral measured by transthoracic ultrasound over 15% after administration of 500 cc of normal saline over 15 minutes) in non-ventilated shock patients.

Condition or disease
Shock Circulatory Failure

Detailed Description:

The secondary objectives of this study include:

  • To determine the sensitivity and specificity of the variation of the velocity time integral after administration of 100 cc of normal saline over 1 minute (ΔITV100) to predict the response to the filling.
  • To study the inter-observer variation of ΔITV100 measurement.
  • To compare ΔITV100 to other clinical and radiological parameters for predicting response to filling (initial value of the subaortic velocity time integral, variation in mitral E wave, E / A, respiratory variation of the diameter of the inferior vena cava, marbling clinical evolution score.

Study Design
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Study Type : Observational
Actual Enrollment : 71 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Echocardiographic Prediction of Fluid Responsiveness After a Mini-fluid Challenge in Non-ventilated Patients With Shock
Study Start Date : January 2013
Actual Primary Completion Date : December 2015
Actual Study Completion Date : December 2015

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Shock

Groups and Cohorts
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Group/Cohort
The study population
Patients in the emergency room or intensive care in acute circulatory failure without ventilatory support.


Outcome Measures
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Primary Outcome Measures :
  1. Change in the subaortic velocity time integral after 100cc of normal saline over 15 minutes (cm^2) [ Time Frame: baseline; 26 minutes ]

Secondary Outcome Measures :
  1. Change if the subaortic velocity time integral after a passive leg raising trial (cm^2) [ Time Frame: baseline; 15 minutes ]
  2. Change in heart rate after the "mini-fluid challenge" [ Time Frame: baseline; 26 minutes ]
    (bpm,%)

  3. Change in mean arterial pressure after the "mini-fluid challenge" (mmHg) [ Time Frame: baseline; 26 minutes ]
  4. Change in mitral E wave (cm / s) after the "mini-fluid challenge" [ Time Frame: baseline; 26 minutes ]
  5. Change in the E/A ratio after the "mini-fluid challenge" [ Time Frame: baseline; 26 minutes ]
  6. Change in the Marbrure clinical score after the "mini-fluid challenge" [ Time Frame: baseline; 26 minutes ]
  7. Change in lower vena cava diameter [ Time Frame: baseline; 8 minutes ]
    (DiameterMax-DiameterMin) / DiameterMax (cm;%)


Eligibility Criteria
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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients in the emergency room or intensive care in acute circulatory failure without ventilatory support.
Criteria

Inclusion Criteria:

  • The patient must have given his/her informed and signed consent
  • The patient must be insured or beneficiary of a health insurance plan
  • Systolic blood pressure (SBP) < 90 mmHg
  • Signs of inadequate cardiac output: urine output <0.5 ml / kg / h for more than two hours, hyperlactataemia
  • Requires amines to maintain an SBP ≥ 90 mmHg or inability to lower amines or requires an increase in amines

Exclusion Criteria:

  • The patient is participating in another study
  • The patient is in an exclusion period determined by a previous study
  • The patient is under judicial protection, under tutorship or curatorship
  • The patient (or his/her person-of-trust) refuses to sign the consent
  • It is impossible to correctly inform the patient
  • The patient is pregnant, parturient, or breastfeeding
  • The patients has a contraindication for a treatment necessary for this study
  • Cardiogenic shock
  • Acute pulmonary edema
  • Moribund patient
  • Non echogenic patient
  • Patient with cardiac arrhythmia
  • Patients for whom the passive leg raising test is contraindicated (hyper intra-abdominal pressure, pelvic or lower limb trauma)
Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01590511


Locations
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France
CHU de Nîmes - Hôpital Universitaire Carémeau
Nîmes Cedex 09, France, 30029
Sponsors and Collaborators
Centre Hospitalier Universitaire de Nīmes
Investigators
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Principal Investigator: Xavier Bobbia, MD Centre Hospitalier Universitaire de Nîmes
More Information
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Responsible Party: Centre Hospitalier Universitaire de Nīmes
ClinicalTrials.gov Identifier: NCT01590511     History of Changes
Other Study ID Numbers: LOCAL/2012/XB-02
2012-A00500-43 ( Other Identifier: RCB number )
First Posted: May 3, 2012    Key Record Dates
Last Update Posted: December 4, 2015
Last Verified: December 2015
Keywords provided by Centre Hospitalier Universitaire de Nīmes:
mini fluid challenge
subaortic velocity time integral
Additional relevant MeSH terms:
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Shock
Pathologic Processes