Equivalence of the Acute Cytokine Surge and Myocardial Injury after Coronary Artery Bypass Grafting with and without a Novel Extracorporeal Circulation System

Takashi Murakami, Hiromi Iwagaki, Shinya Saito, Seiji Ohtani, Kazutaka Kuroki, Masahiko Kuinose, Nobuyuki Tanaka, Kazuo Tanemoto

Journal of International Medical Research · 2005 · 22 citations · 39 references

Concepts

Abstract

Cardiopulmonary bypass (CPB) contributes to a morbidity-inducing systemic inflammatory response after cardiac surgery. We compared this response in patients receiving coronary artery bypass grafting (CABG) with (CPB group; n = 7) or without (off-pump group; n = 8) the Minimal Extracorporeal Circulation (MECC) system. Serum concentrations of tumour necrosis factor (TNF)-alpha, soluble TNF receptors, pro- and anti-inflammatory interleukins (ILs) and other myocardial injury markers were measured after anaesthetic induction, at 1 h, 4 h and 24 h after completing all anastomoses or serially. Soluble TNF receptor type I (sTNFRI) and IL-8 peaked early after CABG in both groups and did not decline. Serum sTNFRI was significantly higher in the CPB compared with the off-pump group at 1 h, whereas IL-8 was significantly lower in the CPB group throughout. The MECC system, therefore, produces an equivalent acute cytokine response and degree of myocardial injury to off-pump CABG, and may be useful when CABG cannot be performed without CPB.

References

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