Endobronchial ultrasound-guided transbronchial biopsy with or without a guide sheath for diagnosis of lung Cancer

Daisuke Minami, Nagio Takigawa, Daisuke Morichika, Toshio Kubo, Kadoaki Ohashi, Akiko Sato, Katsuyuki Hotta, Masahiro Tabata, Mitsune Tanimoto, Katsuyuki Kiura

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Background: Endobronchial ultrasound-guided transbronchial biopsy with a guide sheath (EBUS-GS) is widely used for diagnosing lung cancers; however, the diagnostic yield varies widely. This study aimed to assess the efficiency of EBUS-GS. Methods: We retrospectively evaluated the results of 110 patients who underwent transbronchial biopsy (TBB) for diagnosis of peripheral lung cancer. Bronchoscopy with and without EBUS-GS was performed in 60 (group A) and 50 patients (group B), respectively; their medical records were examined, and results from the two groups were compared by using the unpaired Student t-test. Results: The diagnostic sensitivity for lung cancer was 83.3% in group A and 68% in group B ( P=0.066) while using at least one of the following procedures: TBB, cytological brushing, and bronchial washing. The diagnostic sensitivity for lesions ≥20. mm was 86.4% in group A and 76.7% in group B ( P=0.263). Moreover, the diagnostic sensitivity for lesions 10-20. mm was 60% in group A and 14.2% in group B ( P=0.0004); the diagnostic sensitivity with TBB alone was 63.3% in group A and 44% in group B ( P=0.043). The diagnostic sensitivity with TBB alone for lesions ≥20. mm was 70.2% in group A and 44.8% in group B ( P=0.051). Moreover, the diagnostic sensitivity for lesions 10-20. mm in size was 45% in group A and 14.2% in group B with TBB alone ( P=0.115). Conclusion: EBUS-GS with TBB, brushing, and bronchial washing is effective in diagnosing lung cancers sized <20. mm.

Original languageEnglish
Pages (from-to)93-97
Number of pages5
JournalRespiratory Investigation
Volume53
Issue number3
DOIs
Publication statusPublished - May 1 2015

Keywords

  • Bronchoscopy
  • Endobronchial ultrasound-guided transbronchial biopsy
  • Guide sheath
  • Lung cancer

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine

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