The Effects of Bronchoscope Diameter on the Diagnostic Yield of Transbronchial Lung Biopsy of Peripheral Pulmonary Nodules

Tuberculosis and Respiratory Diseases

article

Nakwon Lee¹  Sang-Ha Kim¹  Woocheol Kwon²  Myoung Kyu Lee¹  Suk Joong Yong¹  Kye Chul Shin¹  Ye-Ryung Jung¹  Yeun Seoung Choi¹  Jiwon Choi¹  Ji Sun Choi¹  Won Yeon Lee¹ 

[1]Department of Internal Medicine, Yonsei University Wonju College of Medicine

[2]Department of Radiology, Yonsei University Wonju College of Medicine

关键词: Biopsy;    Fine-Needle;    Bronchoscopy;    Lung Neoplasms;    Bronchoscopy;   

DOI  :  10.4046/trd.2014.77.6.251

学科分类：医学（综合）

来源: The Korean Academy of Tuberculosis and Respiratory Diseases

【 摘 要 】

Background Transbronchial lung biopsy (TBLB) is a valuable diagnostic tool for peripheral pulmonary lesions. The diagnostic yield of TBLB reportedly ranges from 41%-60%. Many studies demonstrated the various factors that influence the yield of TBLB, including size, location, and distance from the carina or pleura. However, no study has evaluated the effects of the bronchoscope diameter. We evaluated whether the bronchoscope diameter affected the diagnostic yield of TBLB. Methods We reviewed records from 178 patients who underwent TBLB using bronchoscopes of two different diameters (5.7 mm, thick outer diameter, Olympus BF-200; 4.9 mm, thin, BF-260). The fluoroscopic guidance rates, yield of TBLB and flexible bronchoscopy (FB) were compared between the two groups. Additionally, we compared the results of the procedures with respect to diagnosis, distance from the pleura, and size of the lesion. Results The results of fluoroscopic guidance, TBLB, and FB yield using thin diameter bronchoscope were significantly better than those obtained with a thick diameter bronchoscope (p=0.021, p=0.036, and p=0.010, respectively). Particularly, when the distance from the pleura was ≤ 10 mm, success rates for fluoroscopic guidance and FB with thin bronchoscope were higher (p=0.013 and p=0.033, respectively), as compared to with thick bronchoscope. Conclusion A thinner diameter bronchoscope increased the yield of bronchoscopy, and bronchial washing in conjunction with TBLB was useful in the diagnosis of peripheral pulmonary nodules.

【 授权许可】

CC BY-NC