Associated clinical and laboratory markers of donor on allograft function after heart transplant

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Introduction: Primary graft dysfunction is a major cause of mortality after heart transplantation. Objective: To evaluate correlations between donor-related clinical/ biochemical markers and the occurrence of primary graft dysfunction/ clinical outcomes of recipients within 30 days of transplant. Methods: The prospective study involved 43 donor/recipient pairs. Data collected from donors included demographic and echocardiographic information, noradrenaline administration rates and concentrations of soluble tumor necrosis factor receptors (sTNFR1 and sTNFR2), interleukins (IL-6 and IL-10), monocyte chemoattractant protein-1, C-reactive protein and cardiac troponin I. Data collected from recipients included operating, cardiopulmonary bypass, intensive care unit and hospitalization times, inotrope administration and left/right ventricular function through echocardiography. Results: Recipients who developed moderate/severe left ventricular dysfunction had received organs from significantly older donors (P=0.020). Recipients from donors who required moderate/high doses of noradrenaline (>0.23 μg/kg/min) around harvesting time exhibited lower post-transplant ventricular ejection fractions (P=0.002) and required longer CPB times (P=0.039). Significantly higher concentrations of sTNFR1 (P=0.014) and sTNFR2 (P=0.030) in donors were associated with reduced intensive care unit times (≤5 days) in recipients, while higher donor IL-6 (P=0.029) and IL-10 (P=0.037) levels were correlated with reduced hospitalization times (≤25 days) in recipients. Recipients who required moderate/high levels of noradrenaline for weaning off cardiopulmonary bypass were associated with lower donor concentrations of sTNFR2 (P=0.028) and IL-6 (P=0.001). Conclusion: High levels of sTNFR1, sTNFR2, IL-6 and IL-10 in donors were associated with enhanced evolution in recipients. Allografts from older donors, or from those treated with noradrenaline doses >0.23 μg/kg/min, were more frequently affected by primary graft dysfunction within 30 days of surgery.




Braulio, R., Sanches, M. D., Teixeira Junior, A. L., Costa, P. H. N., Moreira, M. D. C. V., Rocha, M. A., … Gelape, C. L. (2016). Associated clinical and laboratory markers of donor on allograft function after heart transplant. Brazilian Journal of Cardiovascular Surgery, 31(2), 89.

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