Perilesional emphysema as a predictor of risk of complications from computed tomography-guided transthoracic lung biopsy.
PURPOSE
This study evaluated whether or not patterns of emphysema and their qualitative and quantitative severity can predict the risk of complications with post-computed tomography (CT)-guided transthoracic lung biopsy (TTLB).


MATERIALS AND METHODS
Three hundred and ninety-seven patients who underwent CT-guided TTLB in 2010-2018 were retrospectively reviewed. The severity of emphysema and presence of perilesional emphysema were assessed visually using the Fleischner Society classification. Ninety seven of the 397 patients underwent quantitative analysis of emphysema. Complications, including pneumothorax, chest tube insertion, and hemorrhage, were assessed by post-TTLB CT and radiographic imaging. The grade of hemorrhage was categorized into three groups. Independent risk factors for pneumothorax and hemorrhage were assessed by univariate and multivariate logistic regression analyses.


RESULTS
Pneumothorax occurred in 48.6% of cases and hemorrhage in 70.5%. Perilesional emphysema was significantly associated with pneumothorax (odds ratio 6.720; 95% confidence interval 3.265-13.831, p < 0.001) and hemorrhage (odds ratio 3.877; 95% confidence interval 1.796-8.367; p = 0.001). The severity of visual and quantitative emphysema was not a significant risk factor for pneumothorax or hemorrhage (p > 0.05). Perilesional emphysema was significantly associated with the grade of hemorrhage (p < 0.001).


CONCLUSION
Perilesional emphysema can estimate the risk of iatrogenic complications from CT-guided TTLB.
['Lee|Doo Sik|DS|', 'Bak|So Hyeon|SH|http://orcid.org/0000-0003-1039-7016', 'Jeon|Yong Hwan|YH|', 'Kwon|Sung Ok|SO|', 'Kim|Woo Jin|WJ|']
D000293:Adolescent D000328:Adult D000368:Aged D000369:Aged, 80 and over D001707:Biopsy, Needle D004646:Emphysema D005260:Female D006470:Hemorrhage D006801:Humans D061705:Image-Guided Biopsy D008168:Lung D008297:Male D008875:Middle Aged D011030:Pneumothorax D015641:Radiography, Interventional D012189:Retrospective Studies D012307:Risk Factors D012720:Severity of Illness Index D014057:Tomography, X-Ray Computed D055815:Young Adult
Emphysema Biopsy Pneumothorax Hemorrhage