• Carolina Kosour, Desanka Dragosavac, Nilson Antunes, Rosmari Aparecida Rosa Almeida de Oliveira, Pedro Paulo Martins Oliveira, and Wilson Vieira Reinaldo R Department of Surgery, School of Medical Sciences, State University of Campinas (Unicamp), Barão Geraldo, Campinas..
• Department of Nursing, Federal University of Alfenas, Alfenas;; Department of Surgery, School of Medical Sciences, State University of Campinas (Unicamp), Barão Geraldo, Campinas. Electronic address: ckosour@fcm.unicamp.br.
• J. Cardiothorac. Vasc. Anesth. 2016 Aug 1; 30 (4): 884-90.

ObjectiveTo evaluate the effect of ultrafiltration on interleukins, TNF-α levels, and pulmonary function in patients undergoing coronary artery bypass grafting (CABG).DesignProspective, randomized, controlled trial.SettingUniversity hospital.ParticipantsForty patients undergoing CABG were randomized into a group assigned to receive ultrafiltration (UF) during cardiopulmonary bypass (CPB) or into another group (control) that underwent the same procedure but without ultrafiltration.MethodsInterleukins and TNF-α levels, pulmonary gas exchange, and ventilatory mechanics were measured in the preoperative, intraoperative, and postoperative periods. Interleukins and TNF-α also were analyzed in the perfusate of the test group.Measurements And Main ResultsThere were increases in IL-6 and IL-8 at 30 minutes after CPB and 6, 12, 24, and 36 hours after surgery, along with an increase in TNF-α at 30 minutes after CPB and 24, 36, and 48 hours after surgery in both groups. IL-1 increased at 30 minutes after CPB and 12 hours after surgery, while IL-6 increased 24 and 36 hours after surgery in the UF group. The analysis of the ultrafiltrate showed the presence of TNF-α and traces of IL-1β, IL-6, and IL-8. There were alterations in the oxygen index, alveolar-arterial oxygen difference, deadspace, pulmonary static compliance and airway resistance after anesthesia and sternotomy, as well as in airway resistance at 6 hours after surgery in both groups, with no difference between them.ConclusionsUltrafiltration increased the serum level of IL-1 and IL-6, while it did not interfere with gas exchange and pulmonary mechanics in CABG.Copyright © 2016 Elsevier Inc. All rights reserved.

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