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JOURNAL ARTICLE
RANDOMIZED CONTROLLED TRIAL
Bronchoscopy Using Virtual Navigation and Endobronchial Ultrasonography with a Guide Sheath (EBUS-GS) with or without Fluoroscopy for Peripheral Pulmonary Lesions.
Kobe Journal of Medical Sciences 2018 March 28
OBJECTIVE: Endobronchial ultrasonography and guide sheath (EBUS-GS) technique has high diagnostic yield in lung nodules. Virtual bronchoscopic navigation (VBN) can lead bronchoscope to the target bronchi. The aim of this prospective study was to compare the diagnostic yield of two bronchoscopic procedures: bronchoscopy under EBUS-GS and VBN with or without x-ray fluoroscopy in small peripheral pulmonary lesions (PPLs, ≤30mm) with apparent CT-bronchus sign.
METHODS: 31 patients with PPLs which had apparent CT-bronchus sign were randomly assigned to the X-ray or the non-X-ray groups (18 with and 13 without fluoroscopy) between September 1, 2012, and September 30, 2015. A bronchoscope was introduced into the target bronchus using the VBN system. Sites of specimen sampling were verified using EBUS-GS with or without fluoroscopy.
RESULTS: The overall diagnostic yield was 83.3% in the X-ray and 69.2% in the non-X-ray group. The diagnostic yield of malignancy was 88.2% and 81.8%, respectively. The duration of the examination and time elapsed until the first EBUS visualization were similar in the X-ray and the non-X-ray group (9.0 (5.8-20.) min vs 11.0 (5.3-17.3) min, and 2.5 (1.3-14.2) min vs 4.1 (1.4-8.1) min, respectively). The fluoroscopy exposure time was 3.7 (2.9-10.56) min. The only adverse event was mild pneumothorax in a patient from the non-X-ray group, who had consequent TBB under fluoroscopy.
CONCLUSIONS: There was a possibility that VBN-guided EBUS-transbronchial diagnosis without fluoroscopy might be equivalent to that under fluoroscopy. Further multi-center randomized study may be desired. (UMIN000008592).
METHODS: 31 patients with PPLs which had apparent CT-bronchus sign were randomly assigned to the X-ray or the non-X-ray groups (18 with and 13 without fluoroscopy) between September 1, 2012, and September 30, 2015. A bronchoscope was introduced into the target bronchus using the VBN system. Sites of specimen sampling were verified using EBUS-GS with or without fluoroscopy.
RESULTS: The overall diagnostic yield was 83.3% in the X-ray and 69.2% in the non-X-ray group. The diagnostic yield of malignancy was 88.2% and 81.8%, respectively. The duration of the examination and time elapsed until the first EBUS visualization were similar in the X-ray and the non-X-ray group (9.0 (5.8-20.) min vs 11.0 (5.3-17.3) min, and 2.5 (1.3-14.2) min vs 4.1 (1.4-8.1) min, respectively). The fluoroscopy exposure time was 3.7 (2.9-10.56) min. The only adverse event was mild pneumothorax in a patient from the non-X-ray group, who had consequent TBB under fluoroscopy.
CONCLUSIONS: There was a possibility that VBN-guided EBUS-transbronchial diagnosis without fluoroscopy might be equivalent to that under fluoroscopy. Further multi-center randomized study may be desired. (UMIN000008592).
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