Does the Duration of Cardiopulmonary Bypass or Aortic Cross-Clamp, in the Absence of Blood and/or Blood Product Administration, Influence the IL-6 Response to Cardiac Surgery?

16 patients undergoing cardiac surgery with cardiopulmonary bypass (coronary artery bypass grafting, n = 9; valvular cardiac surgery, n = 7) who did not receive blood and/or blood products.

Duration of cardiopulmonary bypass (CPB) and aortic cross-clamp time

Absolute increase in plasma IL-6 levels from preinduction (T0) to sternal closuresurrogate