CD163 and infection: In other words, sTREM-1 and sCD163 are not only involved in the process of pathological changes of the heart, but also closely related to the process of inflammation caused by infection.27,28 Finally, in this study, the predictive value of the three indicators for the prognosis of patients with CHF complicated with pulmonary infection is evaluated, and the results show that the three indicators all have favorable predictive value for the poor prognosis of patients, among which the area of sCD163 AUC is the largest.