About this trial
A short bolus infusion of fluid, called "fluid challenge" is commonly recommended for fluid treatment during longer surgery. However a prolonged increase of the blood volume is a prerequisite to recommend the technique. The purpose with the study is to examine the plasma expanding effect of three different fluid challenge strategies (acetated Ringers 4 ml/kg body weight, albumin 5% 4 ml/kg body weight or albumin 20% 1 ml/kg body weight), using hemoglobin as a dilution indicator.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Written consent to participate in the study
For women: relevant contraceptive, menopausal or a negative pregnancy test.
ASA category I to III
Laparoscopic abdominal surgery, with a duration of at least 90 minutes.
Disqualifiers
Patients with known cardiac failure
<18 or >85 years
known allergy to albumin
extracellular hyperhydration or hypervolemia
Trial design
Parallel
Treatments tested in this trial
acetated Ringers
DrugAfter insufflation of carbon dioxide during an abdominal laparoscopic procedure, the first fluid bolus is infused. Circulatory and volume effects are studied. If cardiac output increase a second bolus is infused and studied.
albumin 5%
DrugAfter insufflation of carbon dioxide during an abdominal laparoscopic procedure, the first bolus of fluid is infused. Circulatory and volume effects are studied. If cardiac output increases a second bolus is infused and studied.
albumin 20%
DrugAfter insufflation of carbon dioxide during an abdominal laparoscopic procedure, the first bolus of fluid is infused. Circulatory and volume effects are studied. If cardiac output increases a second bolus is infused and studied.
Treatment groups
Trial outcomes
Primary outcomes
Plasma volume expansion after a fluid bolus
Plasma volume using hemoglobin as an indicator of dilution
Secondary outcomes
Fluid Balance
Calculations of fluid balance
Stroke Volume
Change in stroke volume, measured with Cardio Q (oesophageal Doppler monitoring (ODM))
Arterial Blood Pressure
Mean Arterial Pressure, measured with an arterial line.
Heart Rate
Heart rate, measured with ECG and pulseoximeter.
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
Joachim Zdolsek
Lead sponsor
University Hospital, Linkoeping
Sponsor institution