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The aim of this study was to assess the clinical value of radial probe endobronchial ultrasound (RP-EBUS)-guided localization of solitary pulmonary nodules (SPNs) with the combination of ultrathin bronchoscopy and methylene blue prior to video-assisted thoracoscopic surgery (VATS). An ultrathin bronchoscope was used to localize the lesions under RP-EBUS guidance in 48 patients (18 men and 30 women; age range, 41-72 years; mean age, 54 years), who subsequently underwent VATS resection. The lesion size, distance from the parietal pleura, localization time and complications were evaluated. The RP-EBUS-guided localization success rate was 72.9%. The lesion size ± standard deviation was 12.8±4.2 mm and the mean distance from the parietal pleura was 11.2±9.7 mm. The mean localization time was 15.7±8.3 min. The major complication of RP-EBUS-guided localization was asymptomatic hemorrhage in 4 patients (8.3%). The VATS resection success rate was 95.8%. In terms of pathological type, the 48 lesions included atypical adenomatous hyperplasia (n=4), adenocarcinoma in situ (n=5), minimally invasive adenocarcinoma (n=7), adenocarcinoma (n=18), squamous cell carcinoma (n=1), inflammation (n=6), hamartoma (n=4) and tuberculosis (n=3). Therefore, RP-EBUS-guided localization with the combination of an ultrathin bronchoscope and methylene blue prior to VATS resection is a promising technique for SPNs, it plays an important role in the accurate localization of SPNs and it is an effective and safe technique to assist VATS resection of such nodules.

molecular and clinical oncology

Value of radial probe endobronchial ultrasound-guided localization of solitary pulmonary nodules with the combination of ultrathin bronchoscopy and methylene blue prior to video-assisted thoracoscopic surgery