• Yuji Kadoi, Hajime Narahara, Hiroshi Hinohara, and Fumio Kunimoto.
• Intensive Care Unit, Gunma University Hospital, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan, hnarahara@gunma-u.ac.jp.
• J Anesth. 2013 Oct 1;27(5):676-83.

PurposeThe purpose of this study was to compare the effect of the long-term administration of flurbiprofen and fentanyl in the intensive care unit on natural killer cell cytotoxicity (NKCC), lymphocyte subsets and cytokine levels.MethodsIn this prospective study, patients scheduled for at least 48 h sedation after neck surgery were randomly assigned to two groups called group N and group F. Group N patients were sedated with propofol and flurbiprofen after surgery (n = 12), while group F patients were sedated with propofol and fentanyl (n = 13). The NKCC, lymphocyte subsets, and plasma levels of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6, and IL-10 were measured before and at the end of surgery, on postoperative day (POD) 1 and POD2.ResultsThe NKCC was significantly higher on POD1 in group N than in group F (14.5 ± 11.2 versus 6.3 ± 4.1%, p < 0.05), the difference between the groups disappearing on POD2. Lymphocyte subsets and plasma levels of cytokines were not significantly different between the two groups during the study period.ConclusionsTransient suppressive effects on NKCC were observed in the fentanyl group as compared to the flurbiprofen group. This suggests that when choosing postoperative analgesics, physicians should bear in mind the potential immunosuppressive effects of these agents in patients requiring prolonged sedation in the intensive care unit.

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