LAUSR

Purpose: To investigate the difference in pentraxin 3 (PTX 3) levels between patients with pulmonary contusion and healthy volunteers. Materials and methods: This study was conducted with a group of 20 trauma patients diagnosed with pulmonary contusion and 30 healthy individuals enrolled as a control group in a tertiary university hospital. Results: Median PTX 3 levels were 7.05 (3.29–13.1), ng/ml in the contusion group and 1.03 (0.7–1.58) ng/ml in the control group. PTX 3 titers were significantly higher in patients with pulmonary contusion compared to those of the control group (p < 0.001). An area under the curve (AUC) value of 0.968 investigated using ROC analysis to determine the diagnostic value of the PTX‐3 in pulmonary contusion patients was measured. A PTX‐3 cut‐off value of 2.06 produced 95.5% sensitivity and 86.7% specificity. Conclusion: PTX 3 levels in pulmonary contusion increased significantly compared to the healthy control group. If supported by wider series, PTX 3 may be expected to be capable of use as a marker in pulmonary contusion.