Myocardial protection with and without leukocyte depletion: A comparative study on the oxidative stress
Articolo
Data di Pubblicazione:
1995
Citazione:
Myocardial protection with and without leukocyte depletion: A comparative study on the oxidative stress / M.G. Pala, G. Paolini, R. Paroni, E. DeVecchi, C. Gallorini, P.L. Stefano, G. DiCredico, M. Zuccari, L. Galli, V. Agape, G. Marino, A. Grossi. - In: EUROPEAN JOURNAL OF CARDIO-THORACIC SURGERY. - ISSN 1010-7940. - 9:12(1995 Dec), pp. 701-706.
Abstract:
Abstract: We tested the hypothesis that controlled reperfusion with leukocyte-depleted blood could improve myocardial protection by reducing the oxidative stress in patients undergoing myocardial revascularization, Thirty-four patients receiving antegrade/retrograde blood cardioplegia were divided into: group A: 11 patients with ejection fractions (EF) less than 35%, treated with leukocyte-depleted controlled blood reperfusion, group B: 11 patients with EF less than 35% in whom no leukocyte depletion was performed, group C: 6 patients with EF more than 35% treated as group A and group D: 6 patients with EF more than 45% without leukocyte depletion, To asses the oxidative stress, we evaluated total, total oxidized (GSSX), and reduced glutathione (GSH) in coronary sinus plasma, immediately before cross-clamping the aorta (TO), and at O (T1), 15 (T2) and 30 (T3) min after unclamping it, In groups A and B a significant shift towards oxidation of redox status of glutathione (GSH/GSSX) at T1 vs TO was observed, Glutathione redox ratio remained low in group B while in group A it returned to the basal value at T2 with a significant difference from group B at T2 and T3, No differences were observed between groups C and D, In conclusion, our data show that leukocyte-depleted reperfusion can afford a better myocardial protection in patients with left ventricular dysfunction, while it seems unnecessary in patients with normal EF.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
oxidative stress; neutrophils; myocardial reperfusion injury; myocardial revascularization; glutathione
Elenco autori:
M.G. Pala, G. Paolini, R. Paroni, E. DeVecchi, C. Gallorini, P.L. Stefano, G. DiCredico, M. Zuccari, L. Galli, V. Agape, G. Marino, A. Grossi
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