A Novel Needle-type Sampling Device for Flexible Ultrathin Bronchoscopy

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著者

    • SUDA YUJI
    • Department of Respiratory Medicine, Sendai City Medical Center
    • TANAKA AKIKO
    • Department of Internal Medicine, NTT East Tohoku Hospital
    • IIJIMA HIDEYA
    • Department of Respiratory Medicine, Sendai City Medical Center

抄録

Diagnosis of suspected cancer in the periphery of the lung is difficult. A flexible ultrathin bronchoscope has been developed for the diagnosis of peripherally located pulmonary lesions that cannot be reached with the sampling devices for standard flexible bronchoscopes. The diagnostic yield with forceps and a brush for ultrathin bronchoscopes, however, is not adequate, especially when a lesion is not exposed to the bronchial lumen. We have thus developed a novel needle-type sampling device and tested its yield in transbronchial cytology. The device consists of an elongated dental H-file (0.4 mm in diameter and 110 cm in length), a housing sheath (1.0 mm in outer diameter), and a novel handle, which enables rapid out-and-in motion of the needle. Ten consecutive patients with a peripheral pulmonary lesion who had an indication for diagnostic procedure with a flexible ultrathin bronchoscope were enrolled. The optimal bronchial route to the lesion was analyzed with virtual bronchoscopy in a data set obtained with high-resolution computed tomography, and a novel bronchial route labeling system (prior-ridge-based relative orientation nomenclature) was employed to guide insertion of the bronchoscope. Sampling with the novel needle was performed prior to use of the forceps and brush under conventional fluoroscopy. In all the cases, sampling with the needle was successful and the amount of the specimen was sufficient for cytology. Our novel sampling system with flexible ultrathin bronchoscopes may contribute to accurate and minimally invasive diagnosis of peripheral pulmonary lesions.

収録刊行物

  • THE TOHOKU JOURNAL OF EXPERIMENTAL MEDICINE  

    THE TOHOKU JOURNAL OF EXPERIMENTAL MEDICINE 216(1), 81-93, 2008-09-01 

    Tohoku University Medical Press

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各種コード

  • NII論文ID(NAID)
    10021951729
  • NII書誌ID(NCID)
    AA00863920
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00408727
  • データ提供元
    CJP書誌  J-STAGE 
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