CT引导经皮针吸肺活检发生气胸相关因素的探讨

目的为了探讨CT引导经胸针吸肺活检发生气胸的相关因素。材料和方法对106例病人CT引导经胸针吸肺活检发生气胸情况进行分析，探讨病灶大小、胸膜距肿瘤边缘的距离、针穿过胸膜的次数、有无肺气肿等多参数与气胸发生的相关性。结果106例病人中发生气胸23例，2例因呼吸困难明显，放置了胸腔引流管。病灶越小、有肺气肿存在，发生气胸的危险性越高。结论较小的病灶和肺气肿的存在与气胸的发生有明显的相关性。有肺气肿病人发生气胸是无肺气肿病人的5倍多。

Transthoracic Needle Aspiration Biopsy: Variables That Affect Risk of Pneumothorax

Objective To analyze the influence of multiple variables on the rate of pneumothorax associated with transthoracic needle aspiration biopsy of the lung. Materials and Methods In 106 patients computed tomographically（CT） guided lung biopsies were performed. Variables analyzed were lesion size, depth ; number of pleural passes ; presence of emphysema the person who performed the biopsy. Resultrs Pneumothorax occurred at 23 of 106 biopsies. Chest tube placement was needed in 2 of 23 cases of pneumothorax. Conclusion Smaller lesion size and emphysema are strongly correlated with occurrence of pncumothorax.