Try our beta test site
IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...

Hemodynamic Indices Predictive of a Beneficial Response to Fluid Expansion in Case of Hemodynamic Failure After Cardiac Surgery With Altered Preoperative Ejection Fraction (LVEF≤45%) (ALTERVOL)

This study is currently recruiting participants. (see Contacts and Locations)
Verified September 2015 by Rennes University Hospital
Information provided by (Responsible Party):
Rennes University Hospital Identifier:
First received: August 22, 2012
Last updated: September 11, 2015
Last verified: September 2015
Low Cardiac Output Syndrome occurs frequently after cardiac surgery, especially when pre-operative LVEF is altered (LVEF≤45%). The correction of hemodynamic failure requires adapted treatments: fluid expansion and/or inotropic or vasoactive drugs. Predictive indices of a response to fluid challenge may allow an earlier hemodynamic optimization, which has not been showed until now when LVEF is altered.

Condition Intervention
Ventricular Dysfunction
Procedure: cardiac surgery for ventricular dysfunction

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Official Title: Hemodynamic Indices Predictive of a Beneficial Response to Fluid Expansion in Case of Hemodynamic Failure After Cardiac Surgery With Altered Preoperative Ejection Fraction (LVEF≤45%): Sensibility and Specificity of Respiratory Variations of Pulse Pressure (∆PP), Photoplethysmography (∆POP), Perfusion Index (PVI), Before and After Fluid Expansion.

Resource links provided by NLM:

Further study details as provided by Rennes University Hospital:

Primary Outcome Measures:
  • Measure of ∆PP, ∆POP, PVI and Cardiac index (CI) [ Time Frame: 2 hours ]
    To assess the sensibility and specificity of ∆PP, ∆POP, PVI, after fluid expansion in case of hemodynamic failure in the immediate post-operative period after cardiac surgery, when pre-operative LVEF is altered.

Secondary Outcome Measures:
  • Measure of Systolic, diastolic and mean arterial pressure (SAP, DAP, MAP), Central venous pressure (CVP) and wedge pressure. [ Time Frame: 2 hours ]

    Secondary objectives :

    • Early optimization of hemodynamics after cardiac surgery,
    • To determine optimal threshold for ∆PP, ∆POP and PVI,
    • To compare dynamic (∆PP, ∆POP and PVI) with static (central venous pressure: CVP, wedge pressure) indices

Estimated Enrollment: 80
Study Start Date: September 2012
Estimated Study Completion Date: May 2016
Estimated Primary Completion Date: December 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Ventricular dysfunction
cardiac surgery for ventricular dysfunction
Procedure: cardiac surgery for ventricular dysfunction
For each included patient during the immediate post operative period, hemodynamic variables will be recorded (continuous arterial pressure, ECG, photoplethysmographic curve, CVP, wedge pressure, respiratory pressure), at rest (proclive 45°), during fluid expansion (physiological saline).


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

Inclusion Criteria:

  • patients >18 years old in the immediate post-operative period after cardiac surgery
  • ASA 1 - 3
  • Pre-operative LVEF≤45%
  • Sedated with Ramsay score: 6
  • Mechanically ventilated with tidal volume at 8ml/kg, PEEP at 0mmHg, I/Eat 0,5
  • With hemodynamic failure: SAP≤90mmHg and/or inotropic or vasoactive drug started in the operating room and/or clinical sign of shock and/or CI ≤2,3l/min/m2
  • Affiliation to Health Insurance
  • Consent form signed

Exclusion Criteria:

  • Cardiac arrhythmia: frequent atrial or ventricular extra systoles, atrial fibrillation
  • Intracardiac shunt
  • Weight less than 50 kg
  • History of central nervous system illness
  • Pulmonary oedema (clinical and/or radiological and/or wedge pressure>18mmHg)
  • Right ventricular failure suspected (CVP> wedge pressure) or diagnosed (trans thoracic and/or transesophageal echocardiography)
  • Acute kidney injury with oligoanuria
  • Severe post operative bleeding (chest tubes volume of >200ml/h for 3 hours or more)
  • Severe hypoxia (PaO2/FIO2< 100)
  • Administrative control (patient under guardianship or curatorship)
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01673230

Contact: patrick guinet

Rennes University Hospital Recruiting
Rennes, Brittany, France, 35033
Contact: patrick guinet   
Principal Investigator: patrick guinet         
Sponsors and Collaborators
Rennes University Hospital
Principal Investigator: patrick guinet Rennes University Hospital
  More Information

Responsible Party: Rennes University Hospital Identifier: NCT01673230     History of Changes
Other Study ID Numbers: 2012-A00364-39
LOC/12-01 ( Other Identifier: Rennes University Hospital (Direction of Clinical Research) )
Study First Received: August 22, 2012
Last Updated: September 11, 2015

Additional relevant MeSH terms:
Ventricular Dysfunction
Heart Diseases
Cardiovascular Diseases processed this record on April 28, 2017