Parenchymal blood patching in percutaneous computed tomography-guided lung biopsy: A retrospective analysis of pneumothorax management

A total of 121 patients who underwent CT-guided lung biopsy were included in the study. Among the 39 patients who did not receive a parenchymal blood patch, pneumothorax occurred in 12 cases (30.7%), of which 7 required chest tube drainage and 5 underwent aspiration. In contrast, among the 82 patients who received a parenchymal blood patch, pneumothorax developed in 7 cases (8.5%). Of these, 5 patients required chest tube drainage, while 2 had minimal, non-progressive pneumothorax that required no intervention. Hospitalization was needed in 7 patients in the non-blood patch group and in 5 patients in the blood patch group. A chi-square test showed a statistically significant reduction in pneumothorax incidence in the blood patch group (P = 0.04). However, no statistically significant difference was found in hospitalization rates between the two groups (P = 0.32). Parenchymal blood patching is an effective technique in CT-guided lung biopsies, significantly reducing pneumothorax rates.