Author of

• 20176

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  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)

  • 23468

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    P2.12-005 - Comparison of Needle Gauge Used to Obtain Specimens During EBUS-TBNA in Patients with Lung Cancer (ID 9822)

    09:30 - 09:30  |  Author(s): D.H. Kim
    • Abstract

    Background:
    Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a minimally invasive modality for sampling of mediastinal and hilar lesions. Two dedicated aspiration needles are used for EBUS-TBNA. The relative utility of 21- versus 22-gauge needles remains controversial. The aim of this study was to evaluate the two needles in terms of the adequacy of histological specimens and cellularity of cytological specimens in patients with lung cancer.
    
    Method:
    Sixty-eight patients with metastatic hilar/mediastinal lymphadenopathy with lung cancer or tumors adjacent to the central airway (115 lesions in all) underwent EBUS-TBNA using 21- or 22-gauge needles between September 2014 and April 2016. Samples were assessed by an experienced pathologist blinded to the needle gauge used; rapid on-site cytological evaluation was not performed. The adequacies (in terms of histopathology and cellularity) of aspirates were evaluated.
    
    Result:
    We found no significant difference between the two groups in terms of sex, age, the characteristics of primary malignancy, lesion size, location of the evaluated lesions, or number of needle passes. For samples obtained using 21- and 22-gauge needles, the histological adequacies were 82.5% and 79.4% (p=0.81), and the cytological adequacies 77.1% and 55.2% (p=0.018), respectively. No significant complication was associated with either procedure.
    
    Conclusion:
    The 21-gauge needle afforded better specimen cytology but the needles did not differ in terms of adequacy of the histological specimens in patients with lung cancer.