Systemic Inflammatory Responses and Lung Injury following Hip Fracture Surgery Increases Susceptibility to Infection in Aged Rats
Figure 5
Representative H&E sections of pulmonary tissues of aged rats (magnification 100x). Animals at 1 day after injury (b) and 3 days after injury (c) showing increased congestion, pulmonary edema, polymorphonuclear and mononuclear cell infiltrates, and damaged alveolar architecture compared to the sham group (a). Pathologic characteristics of animals at 7 days after injury (d) were similar to sham group animals (a) with the exception of some neutrophil infiltrates.