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  • Title: Endobronchial ultrasound-guided transbronchial needle aspiration for diagnosing mediastinal lymphadenectasis: a cohort study from a single center.
    Author: Zhu J, Zhang HP, Ni J, Gu Y, Wu CY, Song J, Ji XB, Lu HW, Wei P, Zhou CC, Xu JF.
    Journal: Clin Respir J; 2017 Mar; 11(2):159-167. PubMed ID: 25918974.
    Abstract:
    OBJECTIVE: Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is commonly used for clinical diagnosis of mediastinal lymphadenectasis. This study aimed to evaluate the diagnostic significance of EBUS-TBNA for mediastinal lymphadenectasis in a large single center. METHODS: A total of 846 patients who were not definitively diagnosed with mediastinal lymphadenectasis underwent EBUS-TBNA were retrospectively analyzed in this study. RESULTS: In total, 842 patients underwent EBUS-TBNA successfully. There were 589 patients with malignancy, including squamous carcinoma (118 cases; 20.6%), adenocarcinoma (187 cases; 32.7%) and small cell carcinoma (88 cases; 15.4%). A total of 253 patients were diagnosed with benign disease, including tuberculosis (111 cases; 43.9%) and sarcoidosis (93 cases; 36.7%). The diagnostic sensitivity of lung cancer, tuberculosis and sarcoidosis were 94.4%, 81.1% and 51.6%, respectively. The overall sensitivity of EBUS-TBNA was 92.0%. N2 stage in lung cancer patients who were diagnosed by EBUS-TBNA was significantly higher than other stages. The positive rate of targeted puncture is high for the lymph nodes whose short-axis diameters were larger than 1 cm. CONCLUSION: The operation risk of EBUS-TBNA is relatively small. In diseases complicated by mediastinal lymphadenectasis, malignant diseases are most, and benign diseases mainly are granulomatous. EBUS-TBNA is a valuable diagnostic technique in patients with mediastinal lymphadenectasis whose diagnosis have not been determined.
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