Effects of Cardiopulmonary Bypass (CPB)-Leukocyte Filtration on Interleukins Serum Levels and Pulmonary Function (PulmFunction)
|Systemic Inflammatory Response Syndrome (SIRS) Leukocyte Disorders Complications Due to Coronary Artery Bypass Graft||Device: Filtering group LG-6, Pall Biomedical Products|
|Study Design:||Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Single (Participant)
Primary Purpose: Prevention
|Official Title:||Effects of CPB-leukocyte Filtration on Interleukins Serum Levels and Pulmonary Function.|
- Effects of CPB-leukocyte Filtration on Interleukins Serum Levels and Pulmonary Function. [ Time Frame: 24 hours ]The primary outcome was the evaluation of the effects of leukocyte filtration on lung function in patients undergoing coronary surgery.
- Evaluation of the effects of leukocyte filtration on the inflammatory response in patients undergoing coronary surgery. [ Time Frame: 24 hours ]The secondary outcome was the evaluation of the effects of leukocyte filtration on the inflammatory response in patients undergoing coronary surgery.
|Study Start Date:||February 2007|
|Study Completion Date:||October 2010|
|Primary Completion Date:||February 2010 (Final data collection date for primary outcome measure)|
No Intervention: Control group
In the Control group, a standard arterial line filter was inserted on CPB circuit.
Experimental: Filtering Group
In the Filtering group, a leukocyte filter was inserted in the arterial line circuit.
Device: Filtering group LG-6, Pall Biomedical Products
In Filtering group, a Leukocyte filter (LG-6, Pall Biomedical Products) was placed on the CPB arterial line circuit, trying to filter the white blood cells.
BACKGROUND AND OBJECTIVES: The extension of the systemic inflammatory response observed after cardiopulmonary bypass (CPB) in cardiac surgery is associated to postoperative pulmonary dysfunction degree. The leukocyte depletion during CPB can modify that response. The aim of this study was to evaluate the effects of leukocyte filtering on the inflammatory response and lung function in patients undergoing coronary artery bypass grafting.
METHODS: After approval by the institutional ethical committee, a prospective randomized study was performed to compare nine patients undergoing coronary artery bypass grafting (CABG) using leukocyte filtration in the arterial line (LG-6, Pall Biomedical Products) and eleven others submitted to standard CPB. Chest CT, oxygenation analysis and a complete leucocyte count were performed before surgery. After intravenous anesthesia induction, patients were mechanically ventilated with tidal volume of 8 mL.kg-1, with FiO2 0.6, and PEEP of 5 cm H2O, except during CPB. Haemodynamic data, PaO2/FiO2, shunt fraction, interleukins, elastase and myeloperoxidase were evaluated before and after CPB, at the end of surgery, 6, 12 and 24 hours after surgery. Chest CT was repeated on the first postoperative day. Data were analyzed using two-factor ANOVA for repeated measures.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01469676
|Principal Investigator:||Maria José C Carmona, phd||U Sao Paulo|