• Pediatr Crit Care Me · Sep 2007

    Randomized Controlled Trial

    Effect of inhaled corticosteroid on pulmonary injury and inflammatory mediator production after cardiopulmonary bypass in children.

    • Alexander R Santos, Sabrina M Heidemann, Henry L Walters, and Ralph E Delius.
    • Department of Pediatrics, Wayne State University, Detroit, MI, USA.
    • Pediatr Crit Care Me. 2007 Sep 1;8(5):465-9.

    ObjectiveTo determine whether inhaled steroid administration after cardiopulmonary bypass will attenuate pulmonary inflammation and improve lung compliance and oxygenation.DesignRandomized, prospective, double-blind, placebo-controlled clinical trial.SettingChildren's Hospital of Michigan, intensive care unit.PatientsThirty-two children <2 yrs of age with congenital heart disease requiring cardiopulmonary bypass.InterventionsParticipants were randomly assigned to one of two groups. Group 1 (n = 16) received an inhaled steroid, Budesonide (0.25 mg/2 mL), and group 2 (n = 16) received an inhaled placebo (2 mL of inhaled 0.9% saline). The nebulizations were given at the end of cardiopulmonary bypass, 6 hrs after cardiopulmonary bypass, and 12 hrs after cardiopulmonary bypass. Two hours after each nebulization, bronchoalveolar lavage for interleukin-6 and interleukin-8 was collected.Measurements And Main ResultsThe concentrations of interleukin-6 and interleukin-8 in the bronchoalveolar lavage increased in both groups after cardiopulmonary bypass. Interleukin-6 peaked 2 hrs after cardiopulmonary bypass and was decreasing by 14 hrs after cardiopulmonary bypass. However, administration of corticosteroid did not affect the production of interleukin-6 when compared with the placebo group (378 +/- 728 vs. 287 +/- 583 pg/mL pre-cardiopulmonary bypass, 1662 +/- 1410 vs. 1584 +/- 1645 pg/mL at the end of cardiopulmonary bypass, 2601 +/- 3132 vs. 3677 +/- 4935 pg/mL 2 hrs after cardiopulmonary bypass, and 1792 +/- 3100 vs. 1283 +/- 1344 pg/mL 14 hrs after cardiopulmonary bypass; p > .05). Likewise, interleukin-8 in the lavage fluid was similar in both the placebo and steroid groups at all time points (570 +/- 764 vs. 990 +/- 1147 pg/mL pre-cardiopulmonary bypass, 1647 +/- 1232 vs. 1394 +/- 1079 pg/mL at the end of cardiopulmonary bypass, 1581 +/- 802 vs. 1523 +/- 852 pg/mL 2 hrs after cardiopulmonary bypass, and 1652 +/- 1069 pg/mL vs. 1808 +/- 281 pg/mL 14 hrs after cardiopulmonary bypass; p > .05). Lung compliance and oxygenation were similar in both groups.ConclusionsCardiopulmonary bypass is associated with a pulmonary inflammatory response. Inhaled corticosteroid did not affect the pulmonary inflammatory response as measured by interleukin-6 and interleukin-8 concentrations in the lung lavage after cardiopulmonary bypass. Pulmonary mechanics and oxygenation were not improved by the use of inhaled corticosteroid.

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