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Background  Transbronchial lung biopsy (TBLB) is usually performed to obtain a definitive diagnosis for peripheral pulmonary lesions (PPLs). Ultrathin bronchoscopy combined with virtual bronchoscopic navigation (VBN) and radial endobronchial ultrasound (R‐EBUS) are generally considered appropriate diagnostic methods for PPLs; however, they have not yet been explored in combination with fluoroscopy. Therefore, the present prospective randomized controlled trial determined the role of fluoroscopy in ultrathin bronchoscopy combined with VBN and R‐EBUS for the diagnosis of PPLs.    Methods  Patients with potentially malignant PPLs were enrolled in the study and randomized into fluoroscopy or nonfluoroscopy groups. In both groups, a 3.0‐mm outer and 1.7‐mm internal diameter ultrathin bronchoscope was used for transbronchial lung biopsy combined with R‐EBUS and VBN. In addition, the fluoroscopy group (FG) underwent fluoroscopy, while the nonfluoroscopy group (NFG) did not.    Results  A total of 126 patients were enrolled and randomized in the study. Among them, 120 patients (60 in the NFG and 60 in the FG) were analyzed. The mean lesion sizes were 26.3 ± 11.4 mm and 29.0 ± 11.3 mm in the NFG and FG, respectively. The diagnostic yield was 73.3% (44/60) in the NFG and 81.7% (49/60) in the FG without statistically significant difference ( p  = 0.38). No obvious complications occurred in either group.    Conclusions  Ultrathin bronchoscope combined with VBN and R‐EBUS without fluoroscopy is a feasible and safe diagnostic method for PPLs.

thoracic cancer

Ultrathin bronchoscope combined with virtual bronchoscopic navigation and endobronchial ultrasound for the diagnosis of peripheral pulmonary lesions with or without fluoroscopy: A randomized trial