Author of

• 20176

  +

  P2.12 - Pulmonology/Endoscopy (ID 713)

  • Event: WCLC 2017
  • Type: Poster Session with Presenters Present
  • Track: Pulmonology/Endoscopy
  • Presentations: 1
  • Moderators:
  • Coordinates: 10/17/2017, 09:30 - 16:00, Exhibit Hall (Hall B + C)

  • 24646

    +

    P2.12-006a - CT Findings Reduce the Risk of EBUS-TBNA (ID 7409)

    09:30 - 09:30  |  Author(s): N. Kitamura
    • Abstract

    Background:
    Endbronchial ultrasound guided-trans-bronchial needle aspiration is useful methods for the diagnosis of lung cancer and benign disease. In EBUS-TBNA, we should pay attention for complication and fail. Mediastinitis is a sever complication by EBUS-TBNA. Some reports were paid attention to necrosis findings by EBUS, for example coagulation necrosis sign, heterogeneous echogenicity, and blood poor finding. And then, we couldn’t collect lesion with EBUS-TBNA, because of size and bronchus artery. We should avoid bronchus artery. If bronchus artery was punctured, Bleeding was failed sampling.
    
    Method:
    In this study, we revealed CT finding is enhanced LN size and necrosis. 43 lesions were enrolled retrospectively from Jan 2015 to May 2017.
    
    Result:
    Malignancy were 23. In CT finding, aspiration axis’s means were 34.4±12.3 mm. In plain CT, low intensity area was detected 36.6% (14/43). In enhanced CT, low density area was detected 47.2% (17/36). CT size was enhanced EBUS size (r2=0.45, p<0.001). Indeed, we avoided sampling for 10mm or less in EBUS. CT low density area wasn’t enhanced EBUS necrosis sign’s. These CT findings were low sensitivity and specificity. We avoided sampling from necrosis leions in EBUS.
    
    Conclusion:
    CT size were enhanced EBUS sampling axis diametter. However, CT low density area wasn't reflect necrosis finding in EBUS.