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01.08.2014 | Original Article | Ausgabe 4/2014

European Surgery 4/2014

Malondialdehyde kinetics following coronary artery bypass grafting and its relation to osteopontin

European Surgery > Ausgabe 4/2014
MD, FESC, FACC E. Sbarouni, MD P. Georgiadou, MD, MSc, PhD, FESC C. Mihas, PhD A. Chaidaroglou, MD D. Degiannis, MD, FESC,FACC V. Voudris



Cardiac surgery is associated with inflammation and oxidative stress; malondialdehyde (MDA) is a marker of oxidative stress and osteopontin (OPN) is a proinflammatory cytokine. We studied MDA kinetics following coronary artery bypass grafting (CABG) and its relation to OPN.


We evaluated 50 consecutive patients (60 ± 10 year-old, 44 men and 6 women) with stable coronary artery disease and left ventricular ejection fraction of 50 ± 8 % undergoing elective CABG on pump. Peripheral plasma samples were drawn at baseline, 24 and 72 h postoperatively. OPN was evaluated at baseline and MDA and cardiac enzymes at all time points.


MDA levels increased significantly at 72 h postoperative compared with preoperative and 24 h postoperative levels whereas there was no difference between the pre and first postoperative values (p = 0.67). MDA change was positively correlated with the change in troponin at baseline and at 72 h (r = 0.6, p = 0.022) as well as with preoperative OPN levels (r = 0.28, p = 0.047). There was a significant positive correlation between MDA at 72 h and age (= 0.27, p = 0.039). In addition, MDA change differed significantly in relation to diabetes at baseline and at 72 h—2.99 (4.77) in diabetics versus 0.69 (3.82) in non-diabetics (p = 0.05).


MDA increases post on-pump CABG but only at 72 h and this increase correlates with preoperative OPN levels. In addition, MDA increase is related to age and diabetes as well as troponin increase following surgery.

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