• J Clin Anesth · Jun 2013

    Observational Study

    Effects of surgery, general anesthesia, and perioperative epidural analgesia on the immune function of patients with non-small cell lung cancer.

    • Juan P Cata, Maria Bauer, Telemate Sokari, María F Ramirez, David Mason, Gregory Plautz, and Andrea Kurz.
    • Department of Anesthesiology and Perioperative Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. jcata@mdanderson.org
    • J Clin Anesth. 2013 Jun 1; 25 (4): 255262255-62.

    Study ObjectiveTo assess preoperative and postoperative immune function in patients undergoing surgical resection of non-small cell lung cancer during general anesthesia and postoperative epidural analgesia.DesignObservational single-center study.SettingUniversity-affiliated academic center.Patients24 adult, ASA physical status 3 and 4 patients with stage 1, 2, or 3 non-small cell lung cancer. No study patient received preoperative chemotherapy or radiation.InterventionsPatients underwent thoracotomy with general anesthesia and postoperative epidural analgesia.MeasurementsBispectral index monitoring, sevoflurane requirements, and intraoperative transfusions were recorded. Total fentanyl consumption and pain (verbal numeric rating scale) were recorded 24 hours after surgery. Preoperative and 24-hour postoperative natural killer cell percentage and function and percentages of natural killer T cells, T helper cells (CD4+), and cytotoxic T lymphocytes (CD8+) were measured. Plasma concentrations of the TH1 cytokine interleukin-2 and interferon-gamma and the TH2 cytokines interleukin-4 were measured at the same time points.ResultsThe percentage (preoperative, 13.07 ± 9.81% vs postoperative, 9.6 ± 6.57%, P < 0.001) and function (preoperative, 31.61 ± 21.96%; postoperative, 13.61 ± 9.36%; P < 0.001) of natural killer cells was significantly decreased after surgery, but the percentage of natural killer T cells, T helper cells (CD4+), and cytotoxic T lymphocytes (CD8+) remained unchanged postoperatively; thus, the CD4/CD8 ratio remained unchanged. Postoperative plasma concentrations of the three cytokines were similar to preoperative levels; therefore, the TH1/TH2 ratio also remained unchanged.ConclusionsInnate immunity is depressed in patients with non-small cell lung cancer after surgical resection, and immunity is not preserved by the use of postoperative epidural analgesia.Copyright © 2013 Elsevier Inc. All rights reserved.

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