Significance of elevated serum interleukin-8 in patients resuscitated after cardiopulmonary arrest.
The objectives of this study were to analyze changes in serum interleukin-8 (IL-8) and tumor necrosis factor-alpha (TNF-alpha) levels in patients that restored spontaneous circulation after cardiopulmonary arrest (CPA), and to clarify the cause and significance of elevated serum cytokines after resuscitation. Twenty-eight patients who were admitted to our hospital after out of hospital CPA were studied. Patients' IL-8 levels and TNF-alpha levels in serum increased to a peak within 12 h and within 6 h after the return of spontaneous circulation (ROSC), respectively. Serum IL-8 levels in patients who died or became brain dead within 1 week after ROSC were significantly higher than those in other patients. In stepwise multiple regression analysis, maximum IL-8 values were significantly correlated with maximum TNF-alpha values within post-ROSC 24 h, with the total dose of administered epinephrine and with peripheral neutrophil counts. It is especially noteworthy that the total dose of epinephrine administered during and after resuscitation markedly influenced the elevation of serum IL-8 after ROSC. The increases in serum IL-8 induced by excessive administration of epinephrine might be harmful in the ROSC-patients resuscitated after CPA.[1]References
- Significance of elevated serum interleukin-8 in patients resuscitated after cardiopulmonary arrest. Ito, T., Saitoh, D., Fukuzuka, K., Kiyozumi, T., Kawakami, M., Sakamoto, T., Okada, Y. Resuscitation. (2001) [Pubmed]
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