Alteration of plasma trace elements magnesium, copper, zinc, iron and calcium during and after coronary artery bypass grafting surgery.

Journal of Trace Elements in Medicine and Biology : Organ of the Society for Minerals and Trace Elements (GMS)
Hai-Tao HouGuo-Wei He

Abstract

Dietary factors including trace elements contribute to the development of disorders including coronary artery diseases. Whether there are differences in concentrations of trace elements between on-pump and off-pump coronary artery bypass grafting (CABG) surgery remains unclear. The aim of this study was to investigate the differences in the plasma level of four trace elements Cu, Fe, Zn, magnesium (Mg), and calcium (Ca) during and after CABG between on-pump and off-pump procedure and the correlation between these trace elements and the development of postoperative AF. Fifty-three CABG patients using on-pump or off-pump methods were enrolled. The blood sample was taken before skin incision (T1), 4 h after skin incision (T2), postoperative day1 (T3), and day3 (T4) respectively. Plasma concentrations of Mg, Ca, Fe, Zn, and Cu were determined. The plasma Mg concentration reached the highest level at T3 (0.94 ± 0.03 vs. 1.20 ± 0.03 mmol/L,P < 0.001) and completely recovered at T4 whereas Zn (11.28 ± 0.23 vs. 6.80 ± 0.20 mmol/L, P < 0.001) and Fe (10.97 ± 0.51 vs. 2.22 ± 0.1 μmol/L, P < 0.001) was lowest at T3 and partially recovered at T4. Cu was lowest at T2 (12.10 ± 0.33 vs. 9.62 ± 0.25 μmol/L, P < 0.001) then increased until T4. ...Continue Reading

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