Partitioning of Large and Small Airway Resistance in Human Measured by an Anterograde Catheter with a Tip Micromanometer

Tamotsu Takishima, Masaru Yanai, Kiyohisa Sekizawa, Takashi Ohrui, Hidetada Sasaki, Masao Takahashi, Hideo Ozawa

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    We measured lateral pressure in airways 3 mm in internal diameter in three normal subjects using an anterograde catheter with a tip micromanometer. The pressure was used to partition total pulmonary resistance into a large airway resistance component between the mouth and the pressure sensor and a small airway resistance component between the pressure sensor and alveoli. Large airway resistance and small airway resistance during inspiration were 2.3±0.4 and 0.9±0.2 cmH20/liter/sec (mean±s.E.), respectively, and small airway resistance was 29% of the total pulmonary resistance. We suggest that the present technique may be useful for determining the localization of airway resistance in human subjects.

    Original languageEnglish
    Pages (from-to)99-100
    Number of pages2
    Journalthe tohoku journal of experimental medicine
    Volume156
    Issue number1
    DOIs
    Publication statusPublished - 1988

    Keywords

    • bronchial pressure
    • catheter tip micromanometer
    • pulmonary resistance

    ASJC Scopus subject areas

    • Biochemistry, Genetics and Molecular Biology(all)

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